@@ -12442,958 +12442,6 @@ static inline void gen_helper_do_semihosting(void *env)
}
#endif
-/* microMIPS extension to MIPS32/MIPS64 */
-
-/*
- * microMIPS32/microMIPS64 major opcodes
- *
- * 1. MIPS Architecture for Programmers Volume II-B:
- * The microMIPS32 Instruction Set (Revision 3.05)
- *
- * Table 6.2 microMIPS32 Encoding of Major Opcode Field
- *
- * 2. MIPS Architecture For Programmers Volume II-A:
- * The MIPS64 Instruction Set (Revision 3.51)
- */
-
-enum {
- POOL32A = 0x00,
- POOL16A = 0x01,
- LBU16 = 0x02,
- MOVE16 = 0x03,
- ADDI32 = 0x04,
- R6_LUI = 0x04,
- AUI = 0x04,
- LBU32 = 0x05,
- SB32 = 0x06,
- LB32 = 0x07,
-
- POOL32B = 0x08,
- POOL16B = 0x09,
- LHU16 = 0x0a,
- ANDI16 = 0x0b,
- ADDIU32 = 0x0c,
- LHU32 = 0x0d,
- SH32 = 0x0e,
- LH32 = 0x0f,
-
- POOL32I = 0x10,
- POOL16C = 0x11,
- LWSP16 = 0x12,
- POOL16D = 0x13,
- ORI32 = 0x14,
- POOL32F = 0x15,
- POOL32S = 0x16, /* MIPS64 */
- DADDIU32 = 0x17, /* MIPS64 */
-
- POOL32C = 0x18,
- LWGP16 = 0x19,
- LW16 = 0x1a,
- POOL16E = 0x1b,
- XORI32 = 0x1c,
- JALS32 = 0x1d,
- BOVC = 0x1d,
- BEQC = 0x1d,
- BEQZALC = 0x1d,
- ADDIUPC = 0x1e,
- PCREL = 0x1e,
- BNVC = 0x1f,
- BNEC = 0x1f,
- BNEZALC = 0x1f,
-
- R6_BEQZC = 0x20,
- JIC = 0x20,
- POOL16F = 0x21,
- SB16 = 0x22,
- BEQZ16 = 0x23,
- BEQZC16 = 0x23,
- SLTI32 = 0x24,
- BEQ32 = 0x25,
- BC = 0x25,
- SWC132 = 0x26,
- LWC132 = 0x27,
-
- /* 0x29 is reserved */
- RES_29 = 0x29,
- R6_BNEZC = 0x28,
- JIALC = 0x28,
- SH16 = 0x2a,
- BNEZ16 = 0x2b,
- BNEZC16 = 0x2b,
- SLTIU32 = 0x2c,
- BNE32 = 0x2d,
- BALC = 0x2d,
- SDC132 = 0x2e,
- LDC132 = 0x2f,
-
- /* 0x31 is reserved */
- RES_31 = 0x31,
- BLEZALC = 0x30,
- BGEZALC = 0x30,
- BGEUC = 0x30,
- SWSP16 = 0x32,
- B16 = 0x33,
- BC16 = 0x33,
- ANDI32 = 0x34,
- J32 = 0x35,
- BGTZC = 0x35,
- BLTZC = 0x35,
- BLTC = 0x35,
- SD32 = 0x36, /* MIPS64 */
- LD32 = 0x37, /* MIPS64 */
-
- /* 0x39 is reserved */
- RES_39 = 0x39,
- BGTZALC = 0x38,
- BLTZALC = 0x38,
- BLTUC = 0x38,
- SW16 = 0x3a,
- LI16 = 0x3b,
- JALX32 = 0x3c,
- JAL32 = 0x3d,
- BLEZC = 0x3d,
- BGEZC = 0x3d,
- BGEC = 0x3d,
- SW32 = 0x3e,
- LW32 = 0x3f
-};
-
-/* PCREL Instructions perform PC-Relative address calculation. bits 20..16 */
-enum {
- ADDIUPC_00 = 0x00,
- ADDIUPC_01 = 0x01,
- ADDIUPC_02 = 0x02,
- ADDIUPC_03 = 0x03,
- ADDIUPC_04 = 0x04,
- ADDIUPC_05 = 0x05,
- ADDIUPC_06 = 0x06,
- ADDIUPC_07 = 0x07,
- AUIPC = 0x1e,
- ALUIPC = 0x1f,
- LWPC_08 = 0x08,
- LWPC_09 = 0x09,
- LWPC_0A = 0x0A,
- LWPC_0B = 0x0B,
- LWPC_0C = 0x0C,
- LWPC_0D = 0x0D,
- LWPC_0E = 0x0E,
- LWPC_0F = 0x0F,
-};
-
-/* POOL32A encoding of minor opcode field */
-
-enum {
- /*
- * These opcodes are distinguished only by bits 9..6; those bits are
- * what are recorded below.
- */
- SLL32 = 0x0,
- SRL32 = 0x1,
- SRA = 0x2,
- ROTR = 0x3,
- SELEQZ = 0x5,
- SELNEZ = 0x6,
- R6_RDHWR = 0x7,
-
- SLLV = 0x0,
- SRLV = 0x1,
- SRAV = 0x2,
- ROTRV = 0x3,
- ADD = 0x4,
- ADDU32 = 0x5,
- SUB = 0x6,
- SUBU32 = 0x7,
- MUL = 0x8,
- AND = 0x9,
- OR32 = 0xa,
- NOR = 0xb,
- XOR32 = 0xc,
- SLT = 0xd,
- SLTU = 0xe,
-
- MOVN = 0x0,
- R6_MUL = 0x0,
- MOVZ = 0x1,
- MUH = 0x1,
- MULU = 0x2,
- MUHU = 0x3,
- LWXS = 0x4,
- R6_DIV = 0x4,
- MOD = 0x5,
- R6_DIVU = 0x6,
- MODU = 0x7,
-
- /* The following can be distinguished by their lower 6 bits. */
- BREAK32 = 0x07,
- INS = 0x0c,
- LSA = 0x0f,
- ALIGN = 0x1f,
- EXT = 0x2c,
- POOL32AXF = 0x3c,
- SIGRIE = 0x3f
-};
-
-/* POOL32AXF encoding of minor opcode field extension */
-
-/*
- * 1. MIPS Architecture for Programmers Volume II-B:
- * The microMIPS32 Instruction Set (Revision 3.05)
- *
- * Table 6.5 POOL32Axf Encoding of Minor Opcode Extension Field
- *
- * 2. MIPS Architecture for Programmers VolumeIV-e:
- * The MIPS DSP Application-Specific Extension
- * to the microMIPS32 Architecture (Revision 2.34)
- *
- * Table 5.5 POOL32Axf Encoding of Minor Opcode Extension Field
- */
-
-enum {
- /* bits 11..6 */
- TEQ = 0x00,
- TGE = 0x08,
- TGEU = 0x10,
- TLT = 0x20,
- TLTU = 0x28,
- TNE = 0x30,
-
- MFC0 = 0x03,
- MTC0 = 0x0b,
-
- /* begin of microMIPS32 DSP */
-
- /* bits 13..12 for 0x01 */
- MFHI_ACC = 0x0,
- MFLO_ACC = 0x1,
- MTHI_ACC = 0x2,
- MTLO_ACC = 0x3,
-
- /* bits 13..12 for 0x2a */
- MADD_ACC = 0x0,
- MADDU_ACC = 0x1,
- MSUB_ACC = 0x2,
- MSUBU_ACC = 0x3,
-
- /* bits 13..12 for 0x32 */
- MULT_ACC = 0x0,
- MULTU_ACC = 0x1,
-
- /* end of microMIPS32 DSP */
-
- /* bits 15..12 for 0x2c */
- BITSWAP = 0x0,
- SEB = 0x2,
- SEH = 0x3,
- CLO = 0x4,
- CLZ = 0x5,
- RDHWR = 0x6,
- WSBH = 0x7,
- MULT = 0x8,
- MULTU = 0x9,
- DIV = 0xa,
- DIVU = 0xb,
- MADD = 0xc,
- MADDU = 0xd,
- MSUB = 0xe,
- MSUBU = 0xf,
-
- /* bits 15..12 for 0x34 */
- MFC2 = 0x4,
- MTC2 = 0x5,
- MFHC2 = 0x8,
- MTHC2 = 0x9,
- CFC2 = 0xc,
- CTC2 = 0xd,
-
- /* bits 15..12 for 0x3c */
- JALR = 0x0,
- JR = 0x0, /* alias */
- JALRC = 0x0,
- JRC = 0x0,
- JALR_HB = 0x1,
- JALRC_HB = 0x1,
- JALRS = 0x4,
- JALRS_HB = 0x5,
-
- /* bits 15..12 for 0x05 */
- RDPGPR = 0xe,
- WRPGPR = 0xf,
-
- /* bits 15..12 for 0x0d */
- TLBP = 0x0,
- TLBR = 0x1,
- TLBWI = 0x2,
- TLBWR = 0x3,
- TLBINV = 0x4,
- TLBINVF = 0x5,
- WAIT = 0x9,
- IRET = 0xd,
- DERET = 0xe,
- ERET = 0xf,
-
- /* bits 15..12 for 0x15 */
- DMT = 0x0,
- DVPE = 0x1,
- EMT = 0x2,
- EVPE = 0x3,
-
- /* bits 15..12 for 0x1d */
- DI = 0x4,
- EI = 0x5,
-
- /* bits 15..12 for 0x2d */
- SYNC = 0x6,
- SYSCALL = 0x8,
- SDBBP = 0xd,
-
- /* bits 15..12 for 0x35 */
- MFHI32 = 0x0,
- MFLO32 = 0x1,
- MTHI32 = 0x2,
- MTLO32 = 0x3,
-};
-
-/* POOL32B encoding of minor opcode field (bits 15..12) */
-
-enum {
- LWC2 = 0x0,
- LWP = 0x1,
- LDP = 0x4,
- LWM32 = 0x5,
- CACHE = 0x6,
- LDM = 0x7,
- SWC2 = 0x8,
- SWP = 0x9,
- SDP = 0xc,
- SWM32 = 0xd,
- SDM = 0xf
-};
-
-/* POOL32C encoding of minor opcode field (bits 15..12) */
-
-enum {
- LWL = 0x0,
- SWL = 0x8,
- LWR = 0x1,
- SWR = 0x9,
- PREF = 0x2,
- ST_EVA = 0xa,
- LL = 0x3,
- SC = 0xb,
- LDL = 0x4,
- SDL = 0xc,
- LDR = 0x5,
- SDR = 0xd,
- LD_EVA = 0x6,
- LWU = 0xe,
- LLD = 0x7,
- SCD = 0xf
-};
-
-/* POOL32C LD-EVA encoding of minor opcode field (bits 11..9) */
-
-enum {
- LBUE = 0x0,
- LHUE = 0x1,
- LWLE = 0x2,
- LWRE = 0x3,
- LBE = 0x4,
- LHE = 0x5,
- LLE = 0x6,
- LWE = 0x7,
-};
-
-/* POOL32C ST-EVA encoding of minor opcode field (bits 11..9) */
-
-enum {
- SWLE = 0x0,
- SWRE = 0x1,
- PREFE = 0x2,
- CACHEE = 0x3,
- SBE = 0x4,
- SHE = 0x5,
- SCE = 0x6,
- SWE = 0x7,
-};
-
-/* POOL32F encoding of minor opcode field (bits 5..0) */
-
-enum {
- /* These are the bit 7..6 values */
- ADD_FMT = 0x0,
-
- SUB_FMT = 0x1,
-
- MUL_FMT = 0x2,
-
- DIV_FMT = 0x3,
-
- /* These are the bit 8..6 values */
- MOVN_FMT = 0x0,
- RSQRT2_FMT = 0x0,
- MOVF_FMT = 0x0,
- RINT_FMT = 0x0,
- SELNEZ_FMT = 0x0,
-
- MOVZ_FMT = 0x1,
- LWXC1 = 0x1,
- MOVT_FMT = 0x1,
- CLASS_FMT = 0x1,
- SELEQZ_FMT = 0x1,
-
- PLL_PS = 0x2,
- SWXC1 = 0x2,
- SEL_FMT = 0x2,
-
- PLU_PS = 0x3,
- LDXC1 = 0x3,
-
- MOVN_FMT_04 = 0x4,
- PUL_PS = 0x4,
- SDXC1 = 0x4,
- RECIP2_FMT = 0x4,
-
- MOVZ_FMT_05 = 0x05,
- PUU_PS = 0x5,
- LUXC1 = 0x5,
-
- CVT_PS_S = 0x6,
- SUXC1 = 0x6,
- ADDR_PS = 0x6,
- PREFX = 0x6,
- MADDF_FMT = 0x6,
-
- MULR_PS = 0x7,
- MSUBF_FMT = 0x7,
-
- MADD_S = 0x01,
- MADD_D = 0x09,
- MADD_PS = 0x11,
- ALNV_PS = 0x19,
- MSUB_S = 0x21,
- MSUB_D = 0x29,
- MSUB_PS = 0x31,
-
- NMADD_S = 0x02,
- NMADD_D = 0x0a,
- NMADD_PS = 0x12,
- NMSUB_S = 0x22,
- NMSUB_D = 0x2a,
- NMSUB_PS = 0x32,
-
- MIN_FMT = 0x3,
- MAX_FMT = 0xb,
- MINA_FMT = 0x23,
- MAXA_FMT = 0x2b,
- POOL32FXF = 0x3b,
-
- CABS_COND_FMT = 0x1c, /* MIPS3D */
- C_COND_FMT = 0x3c,
-
- CMP_CONDN_S = 0x5,
- CMP_CONDN_D = 0x15
-};
-
-/* POOL32Fxf encoding of minor opcode extension field */
-
-enum {
- CVT_L = 0x04,
- RSQRT_FMT = 0x08,
- FLOOR_L = 0x0c,
- CVT_PW_PS = 0x1c,
- CVT_W = 0x24,
- SQRT_FMT = 0x28,
- FLOOR_W = 0x2c,
- CVT_PS_PW = 0x3c,
- CFC1 = 0x40,
- RECIP_FMT = 0x48,
- CEIL_L = 0x4c,
- CTC1 = 0x60,
- CEIL_W = 0x6c,
- MFC1 = 0x80,
- CVT_S_PL = 0x84,
- TRUNC_L = 0x8c,
- MTC1 = 0xa0,
- CVT_S_PU = 0xa4,
- TRUNC_W = 0xac,
- MFHC1 = 0xc0,
- ROUND_L = 0xcc,
- MTHC1 = 0xe0,
- ROUND_W = 0xec,
-
- MOV_FMT = 0x01,
- MOVF = 0x05,
- ABS_FMT = 0x0d,
- RSQRT1_FMT = 0x1d,
- MOVT = 0x25,
- NEG_FMT = 0x2d,
- CVT_D = 0x4d,
- RECIP1_FMT = 0x5d,
- CVT_S = 0x6d
-};
-
-/* POOL32I encoding of minor opcode field (bits 25..21) */
-
-enum {
- BLTZ = 0x00,
- BLTZAL = 0x01,
- BGEZ = 0x02,
- BGEZAL = 0x03,
- BLEZ = 0x04,
- BNEZC = 0x05,
- BGTZ = 0x06,
- BEQZC = 0x07,
- TLTI = 0x08,
- BC1EQZC = 0x08,
- TGEI = 0x09,
- BC1NEZC = 0x09,
- TLTIU = 0x0a,
- BC2EQZC = 0x0a,
- TGEIU = 0x0b,
- BC2NEZC = 0x0a,
- TNEI = 0x0c,
- R6_SYNCI = 0x0c,
- LUI = 0x0d,
- TEQI = 0x0e,
- SYNCI = 0x10,
- BLTZALS = 0x11,
- BGEZALS = 0x13,
- BC2F = 0x14,
- BC2T = 0x15,
- /* These overlap and are distinguished by bit16 of the instruction */
- BC1F = 0x1c,
- BC1T = 0x1d,
- BC1ANY2F = 0x1c,
- BC1ANY2T = 0x1d,
- BC1ANY4F = 0x1e,
- BC1ANY4T = 0x1f
-};
-
-/* POOL16A encoding of minor opcode field */
-
-enum {
- ADDU16 = 0x0,
- SUBU16 = 0x1
-};
-
-/* POOL16B encoding of minor opcode field */
-
-enum {
- SLL16 = 0x0,
- SRL16 = 0x1
-};
-
-/* POOL16C encoding of minor opcode field */
-
-enum {
- NOT16 = 0x00,
- XOR16 = 0x04,
- AND16 = 0x08,
- OR16 = 0x0c,
- LWM16 = 0x10,
- SWM16 = 0x14,
- JR16 = 0x18,
- JRC16 = 0x1a,
- JALR16 = 0x1c,
- JALR16S = 0x1e,
- MFHI16 = 0x20,
- MFLO16 = 0x24,
- BREAK16 = 0x28,
- SDBBP16 = 0x2c,
- JRADDIUSP = 0x30
-};
-
-/* R6 POOL16C encoding of minor opcode field (bits 0..5) */
-
-enum {
- R6_NOT16 = 0x00,
- R6_AND16 = 0x01,
- R6_LWM16 = 0x02,
- R6_JRC16 = 0x03,
- MOVEP = 0x04,
- MOVEP_05 = 0x05,
- MOVEP_06 = 0x06,
- MOVEP_07 = 0x07,
- R6_XOR16 = 0x08,
- R6_OR16 = 0x09,
- R6_SWM16 = 0x0a,
- JALRC16 = 0x0b,
- MOVEP_0C = 0x0c,
- MOVEP_0D = 0x0d,
- MOVEP_0E = 0x0e,
- MOVEP_0F = 0x0f,
- JRCADDIUSP = 0x13,
- R6_BREAK16 = 0x1b,
- R6_SDBBP16 = 0x3b
-};
-
-/* POOL16D encoding of minor opcode field */
-
-enum {
- ADDIUS5 = 0x0,
- ADDIUSP = 0x1
-};
-
-/* POOL16E encoding of minor opcode field */
-
-enum {
- ADDIUR2 = 0x0,
- ADDIUR1SP = 0x1
-};
-
-static int mmreg(int r)
-{
- static const int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
-
- return map[r];
-}
-
-/* Used for 16-bit store instructions. */
-static int mmreg2(int r)
-{
- static const int map[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
-
- return map[r];
-}
-
-#define uMIPS_RD(op) ((op >> 7) & 0x7)
-#define uMIPS_RS(op) ((op >> 4) & 0x7)
-#define uMIPS_RS2(op) uMIPS_RS(op)
-#define uMIPS_RS1(op) ((op >> 1) & 0x7)
-#define uMIPS_RD5(op) ((op >> 5) & 0x1f)
-#define uMIPS_RS5(op) (op & 0x1f)
-
-/* Signed immediate */
-#define SIMM(op, start, width) \
- ((int32_t)(((op >> start) & ((~0U) >> (32 - width))) \
- << (32 - width)) \
- >> (32 - width))
-/* Zero-extended immediate */
-#define ZIMM(op, start, width) ((op >> start) & ((~0U) >> (32 - width)))
-
-static void gen_addiur1sp(DisasContext *ctx)
-{
- int rd = mmreg(uMIPS_RD(ctx->opcode));
-
- gen_arith_imm(ctx, OPC_ADDIU, rd, 29, ((ctx->opcode >> 1) & 0x3f) << 2);
-}
-
-static void gen_addiur2(DisasContext *ctx)
-{
- static const int decoded_imm[] = { 1, 4, 8, 12, 16, 20, 24, -1 };
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs = mmreg(uMIPS_RS(ctx->opcode));
-
- gen_arith_imm(ctx, OPC_ADDIU, rd, rs, decoded_imm[ZIMM(ctx->opcode, 1, 3)]);
-}
-
-static void gen_addiusp(DisasContext *ctx)
-{
- int encoded = ZIMM(ctx->opcode, 1, 9);
- int decoded;
-
- if (encoded <= 1) {
- decoded = 256 + encoded;
- } else if (encoded <= 255) {
- decoded = encoded;
- } else if (encoded <= 509) {
- decoded = encoded - 512;
- } else {
- decoded = encoded - 768;
- }
-
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29, decoded << 2);
-}
-
-static void gen_addius5(DisasContext *ctx)
-{
- int imm = SIMM(ctx->opcode, 1, 4);
- int rd = (ctx->opcode >> 5) & 0x1f;
-
- gen_arith_imm(ctx, OPC_ADDIU, rd, rd, imm);
-}
-
-static void gen_andi16(DisasContext *ctx)
-{
- static const int decoded_imm[] = { 128, 1, 2, 3, 4, 7, 8, 15, 16,
- 31, 32, 63, 64, 255, 32768, 65535 };
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs = mmreg(uMIPS_RS(ctx->opcode));
- int encoded = ZIMM(ctx->opcode, 0, 4);
-
- gen_logic_imm(ctx, OPC_ANDI, rd, rs, decoded_imm[encoded]);
-}
-
-static void gen_ldst_multiple(DisasContext *ctx, uint32_t opc, int reglist,
- int base, int16_t offset)
-{
- TCGv t0, t1;
- TCGv_i32 t2;
-
- if (ctx->hflags & MIPS_HFLAG_BMASK) {
- gen_reserved_instruction(ctx);
- return;
- }
-
- t0 = tcg_temp_new();
-
- gen_base_offset_addr(ctx, t0, base, offset);
-
- t1 = tcg_const_tl(reglist);
- t2 = tcg_const_i32(ctx->mem_idx);
-
- save_cpu_state(ctx, 1);
- switch (opc) {
- case LWM32:
- gen_helper_lwm(cpu_env, t0, t1, t2);
- break;
- case SWM32:
- gen_helper_swm(cpu_env, t0, t1, t2);
- break;
-#ifdef TARGET_MIPS64
- case LDM:
- gen_helper_ldm(cpu_env, t0, t1, t2);
- break;
- case SDM:
- gen_helper_sdm(cpu_env, t0, t1, t2);
- break;
-#endif
- }
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- tcg_temp_free_i32(t2);
-}
-
-
-static void gen_pool16c_insn(DisasContext *ctx)
-{
- int rd = mmreg((ctx->opcode >> 3) & 0x7);
- int rs = mmreg(ctx->opcode & 0x7);
-
- switch (((ctx->opcode) >> 4) & 0x3f) {
- case NOT16 + 0:
- case NOT16 + 1:
- case NOT16 + 2:
- case NOT16 + 3:
- gen_logic(ctx, OPC_NOR, rd, rs, 0);
- break;
- case XOR16 + 0:
- case XOR16 + 1:
- case XOR16 + 2:
- case XOR16 + 3:
- gen_logic(ctx, OPC_XOR, rd, rd, rs);
- break;
- case AND16 + 0:
- case AND16 + 1:
- case AND16 + 2:
- case AND16 + 3:
- gen_logic(ctx, OPC_AND, rd, rd, rs);
- break;
- case OR16 + 0:
- case OR16 + 1:
- case OR16 + 2:
- case OR16 + 3:
- gen_logic(ctx, OPC_OR, rd, rd, rs);
- break;
- case LWM16 + 0:
- case LWM16 + 1:
- case LWM16 + 2:
- case LWM16 + 3:
- {
- static const int lwm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
- int offset = ZIMM(ctx->opcode, 0, 4);
-
- gen_ldst_multiple(ctx, LWM32, lwm_convert[(ctx->opcode >> 4) & 0x3],
- 29, offset << 2);
- }
- break;
- case SWM16 + 0:
- case SWM16 + 1:
- case SWM16 + 2:
- case SWM16 + 3:
- {
- static const int swm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
- int offset = ZIMM(ctx->opcode, 0, 4);
-
- gen_ldst_multiple(ctx, SWM32, swm_convert[(ctx->opcode >> 4) & 0x3],
- 29, offset << 2);
- }
- break;
- case JR16 + 0:
- case JR16 + 1:
- {
- int reg = ctx->opcode & 0x1f;
-
- gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0, 4);
- }
- break;
- case JRC16 + 0:
- case JRC16 + 1:
- {
- int reg = ctx->opcode & 0x1f;
- gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0, 0);
- /*
- * Let normal delay slot handling in our caller take us
- * to the branch target.
- */
- }
- break;
- case JALR16 + 0:
- case JALR16 + 1:
- gen_compute_branch(ctx, OPC_JALR, 2, ctx->opcode & 0x1f, 31, 0, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case JALR16S + 0:
- case JALR16S + 1:
- gen_compute_branch(ctx, OPC_JALR, 2, ctx->opcode & 0x1f, 31, 0, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case MFHI16 + 0:
- case MFHI16 + 1:
- gen_HILO(ctx, OPC_MFHI, 0, uMIPS_RS5(ctx->opcode));
- break;
- case MFLO16 + 0:
- case MFLO16 + 1:
- gen_HILO(ctx, OPC_MFLO, 0, uMIPS_RS5(ctx->opcode));
- break;
- case BREAK16:
- generate_exception_end(ctx, EXCP_BREAK);
- break;
- case SDBBP16:
- if (is_uhi(extract32(ctx->opcode, 0, 4))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- /*
- * XXX: not clear which exception should be raised
- * when in debug mode...
- */
- check_insn(ctx, ISA_MIPS_R1);
- generate_exception_end(ctx, EXCP_DBp);
- }
- break;
- case JRADDIUSP + 0:
- case JRADDIUSP + 1:
- {
- int imm = ZIMM(ctx->opcode, 0, 5);
- gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0, 0);
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29, imm << 2);
- /*
- * Let normal delay slot handling in our caller take us
- * to the branch target.
- */
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-static inline void gen_movep(DisasContext *ctx, int enc_dest, int enc_rt,
- int enc_rs)
-{
- int rd, re;
- static const int rd_enc[] = { 5, 5, 6, 4, 4, 4, 4, 4 };
- static const int re_enc[] = { 6, 7, 7, 21, 22, 5, 6, 7 };
- static const int rs_rt_enc[] = { 0, 17, 2, 3, 16, 18, 19, 20 };
-
- rd = rd_enc[enc_dest];
- re = re_enc[enc_dest];
- gen_load_gpr(cpu_gpr[rd], rs_rt_enc[enc_rs]);
- gen_load_gpr(cpu_gpr[re], rs_rt_enc[enc_rt]);
-}
-
-static void gen_pool16c_r6_insn(DisasContext *ctx)
-{
- int rt = mmreg((ctx->opcode >> 7) & 0x7);
- int rs = mmreg((ctx->opcode >> 4) & 0x7);
-
- switch (ctx->opcode & 0xf) {
- case R6_NOT16:
- gen_logic(ctx, OPC_NOR, rt, rs, 0);
- break;
- case R6_AND16:
- gen_logic(ctx, OPC_AND, rt, rt, rs);
- break;
- case R6_LWM16:
- {
- int lwm_converted = 0x11 + extract32(ctx->opcode, 8, 2);
- int offset = extract32(ctx->opcode, 4, 4);
- gen_ldst_multiple(ctx, LWM32, lwm_converted, 29, offset << 2);
- }
- break;
- case R6_JRC16: /* JRCADDIUSP */
- if ((ctx->opcode >> 4) & 1) {
- /* JRCADDIUSP */
- int imm = extract32(ctx->opcode, 5, 5);
- gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0, 0);
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29, imm << 2);
- } else {
- /* JRC16 */
- rs = extract32(ctx->opcode, 5, 5);
- gen_compute_branch(ctx, OPC_JR, 2, rs, 0, 0, 0);
- }
- break;
- case MOVEP:
- case MOVEP_05:
- case MOVEP_06:
- case MOVEP_07:
- case MOVEP_0C:
- case MOVEP_0D:
- case MOVEP_0E:
- case MOVEP_0F:
- {
- int enc_dest = uMIPS_RD(ctx->opcode);
- int enc_rt = uMIPS_RS2(ctx->opcode);
- int enc_rs = (ctx->opcode & 3) | ((ctx->opcode >> 1) & 4);
- gen_movep(ctx, enc_dest, enc_rt, enc_rs);
- }
- break;
- case R6_XOR16:
- gen_logic(ctx, OPC_XOR, rt, rt, rs);
- break;
- case R6_OR16:
- gen_logic(ctx, OPC_OR, rt, rt, rs);
- break;
- case R6_SWM16:
- {
- int swm_converted = 0x11 + extract32(ctx->opcode, 8, 2);
- int offset = extract32(ctx->opcode, 4, 4);
- gen_ldst_multiple(ctx, SWM32, swm_converted, 29, offset << 2);
- }
- break;
- case JALRC16: /* BREAK16, SDBBP16 */
- switch (ctx->opcode & 0x3f) {
- case JALRC16:
- case JALRC16 + 0x20:
- /* JALRC16 */
- gen_compute_branch(ctx, OPC_JALR, 2, (ctx->opcode >> 5) & 0x1f,
- 31, 0, 0);
- break;
- case R6_BREAK16:
- /* BREAK16 */
- generate_exception(ctx, EXCP_BREAK);
- break;
- case R6_SDBBP16:
- /* SDBBP16 */
- if (is_uhi(extract32(ctx->opcode, 6, 4))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- if (ctx->hflags & MIPS_HFLAG_SBRI) {
- generate_exception(ctx, EXCP_RI);
- } else {
- generate_exception(ctx, EXCP_DBp);
- }
- }
- break;
- }
- break;
- default:
- generate_exception(ctx, EXCP_RI);
- break;
- }
-}
-
void gen_ldxs(DisasContext *ctx, int base, int index, int rd)
{
TCGv t0 = tcg_temp_new();
@@ -13414,69 +12462,6 @@ void gen_ldxs(DisasContext *ctx, int base, int index, int rd)
tcg_temp_free(t1);
}
-static void gen_ldst_pair(DisasContext *ctx, uint32_t opc, int rd,
- int base, int16_t offset)
-{
- TCGv t0, t1;
-
- if (ctx->hflags & MIPS_HFLAG_BMASK || rd == 31) {
- gen_reserved_instruction(ctx);
- return;
- }
-
- t0 = tcg_temp_new();
- t1 = tcg_temp_new();
-
- gen_base_offset_addr(ctx, t0, base, offset);
-
- switch (opc) {
- case LWP:
- if (rd == base) {
- gen_reserved_instruction(ctx);
- return;
- }
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
- gen_store_gpr(t1, rd);
- tcg_gen_movi_tl(t1, 4);
- gen_op_addr_add(ctx, t0, t0, t1);
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
- gen_store_gpr(t1, rd + 1);
- break;
- case SWP:
- gen_load_gpr(t1, rd);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- tcg_gen_movi_tl(t1, 4);
- gen_op_addr_add(ctx, t0, t0, t1);
- gen_load_gpr(t1, rd + 1);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- break;
-#ifdef TARGET_MIPS64
- case LDP:
- if (rd == base) {
- gen_reserved_instruction(ctx);
- return;
- }
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- gen_store_gpr(t1, rd);
- tcg_gen_movi_tl(t1, 8);
- gen_op_addr_add(ctx, t0, t0, t1);
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- gen_store_gpr(t1, rd + 1);
- break;
- case SDP:
- gen_load_gpr(t1, rd);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- tcg_gen_movi_tl(t1, 8);
- gen_op_addr_add(ctx, t0, t0, t1);
- gen_load_gpr(t1, rd + 1);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- break;
-#endif
- }
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
static void gen_sync(int stype)
{
TCGBar tcg_mo = TCG_BAR_SC;
@@ -13505,353 +12490,12 @@ static void gen_sync(int stype)
tcg_gen_mb(tcg_mo);
}
-static void gen_pool32axf(CPUMIPSState *env, DisasContext *ctx, int rt, int rs)
-{
- int extension = (ctx->opcode >> 6) & 0x3f;
- int minor = (ctx->opcode >> 12) & 0xf;
- uint32_t mips32_op;
+/* ISA extensions (ASEs) */
- switch (extension) {
- case TEQ:
- mips32_op = OPC_TEQ;
- goto do_trap;
- case TGE:
- mips32_op = OPC_TGE;
- goto do_trap;
- case TGEU:
- mips32_op = OPC_TGEU;
- goto do_trap;
- case TLT:
- mips32_op = OPC_TLT;
- goto do_trap;
- case TLTU:
- mips32_op = OPC_TLTU;
- goto do_trap;
- case TNE:
- mips32_op = OPC_TNE;
- do_trap:
- gen_trap(ctx, mips32_op, rs, rt, -1);
- break;
-#ifndef CONFIG_USER_ONLY
- case MFC0:
- case MFC0 + 32:
- check_cp0_enabled(ctx);
- if (rt == 0) {
- /* Treat as NOP. */
- break;
- }
- gen_mfc0(ctx, cpu_gpr[rt], rs, (ctx->opcode >> 11) & 0x7);
- break;
- case MTC0:
- case MTC0 + 32:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
+/* MIPS16 extension to MIPS32 */
+#include "mips16e_translate.c.inc"
- gen_load_gpr(t0, rt);
- gen_mtc0(ctx, t0, rs, (ctx->opcode >> 11) & 0x7);
- tcg_temp_free(t0);
- }
- break;
-#endif
- case 0x2a:
- switch (minor & 3) {
- case MADD_ACC:
- gen_muldiv(ctx, OPC_MADD, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MADDU_ACC:
- gen_muldiv(ctx, OPC_MADDU, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MSUB_ACC:
- gen_muldiv(ctx, OPC_MSUB, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MSUBU_ACC:
- gen_muldiv(ctx, OPC_MSUBU, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x32:
- switch (minor & 3) {
- case MULT_ACC:
- gen_muldiv(ctx, OPC_MULT, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MULTU_ACC:
- gen_muldiv(ctx, OPC_MULTU, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x2c:
- switch (minor) {
- case BITSWAP:
- check_insn(ctx, ISA_MIPS_R6);
- gen_bitswap(ctx, OPC_BITSWAP, rs, rt);
- break;
- case SEB:
- gen_bshfl(ctx, OPC_SEB, rs, rt);
- break;
- case SEH:
- gen_bshfl(ctx, OPC_SEH, rs, rt);
- break;
- case CLO:
- mips32_op = OPC_CLO;
- goto do_cl;
- case CLZ:
- mips32_op = OPC_CLZ;
- do_cl:
- check_insn(ctx, ISA_MIPS_R1);
- gen_cl(ctx, mips32_op, rt, rs);
- break;
- case RDHWR:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_rdhwr(ctx, rt, rs, 0);
- break;
- case WSBH:
- gen_bshfl(ctx, OPC_WSBH, rs, rt);
- break;
- case MULT:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MULT;
- goto do_mul;
- case MULTU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MULTU;
- goto do_mul;
- case DIV:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_DIV;
- goto do_div;
- case DIVU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_DIVU;
- goto do_div;
- do_div:
- check_insn(ctx, ISA_MIPS_R1);
- gen_muldiv(ctx, mips32_op, 0, rs, rt);
- break;
- case MADD:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD;
- goto do_mul;
- case MADDU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADDU;
- goto do_mul;
- case MSUB:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB;
- goto do_mul;
- case MSUBU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUBU;
- do_mul:
- check_insn(ctx, ISA_MIPS_R1);
- gen_muldiv(ctx, mips32_op, 0, rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x34:
- switch (minor) {
- case MFC2:
- case MTC2:
- case MFHC2:
- case MTHC2:
- case CFC2:
- case CTC2:
- generate_exception_err(ctx, EXCP_CpU, 2);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x3c:
- switch (minor) {
- case JALR: /* JALRC */
- case JALR_HB: /* JALRC_HB */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* JALRC, JALRC_HB */
- gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 0);
- } else {
- /* JALR, JALR_HB */
- gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- }
- break;
- case JALRS:
- case JALRS_HB:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x05:
- switch (minor) {
- case RDPGPR:
- check_cp0_enabled(ctx);
- check_insn(ctx, ISA_MIPS_R2);
- gen_load_srsgpr(rs, rt);
- break;
- case WRPGPR:
- check_cp0_enabled(ctx);
- check_insn(ctx, ISA_MIPS_R2);
- gen_store_srsgpr(rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
-#ifndef CONFIG_USER_ONLY
- case 0x0d:
- switch (minor) {
- case TLBP:
- mips32_op = OPC_TLBP;
- goto do_cp0;
- case TLBR:
- mips32_op = OPC_TLBR;
- goto do_cp0;
- case TLBWI:
- mips32_op = OPC_TLBWI;
- goto do_cp0;
- case TLBWR:
- mips32_op = OPC_TLBWR;
- goto do_cp0;
- case TLBINV:
- mips32_op = OPC_TLBINV;
- goto do_cp0;
- case TLBINVF:
- mips32_op = OPC_TLBINVF;
- goto do_cp0;
- case WAIT:
- mips32_op = OPC_WAIT;
- goto do_cp0;
- case DERET:
- mips32_op = OPC_DERET;
- goto do_cp0;
- case ERET:
- mips32_op = OPC_ERET;
- do_cp0:
- gen_cp0(env, ctx, mips32_op, rt, rs);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x1d:
- switch (minor) {
- case DI:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- save_cpu_state(ctx, 1);
- gen_helper_di(t0, cpu_env);
- gen_store_gpr(t0, rs);
- /*
- * Stop translation as we may have switched the execution
- * mode.
- */
- ctx->base.is_jmp = DISAS_STOP;
- tcg_temp_free(t0);
- }
- break;
- case EI:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- save_cpu_state(ctx, 1);
- gen_helper_ei(t0, cpu_env);
- gen_store_gpr(t0, rs);
- /*
- * DISAS_STOP isn't sufficient, we need to ensure we break out
- * of translated code to check for pending interrupts.
- */
- gen_save_pc(ctx->base.pc_next + 4);
- ctx->base.is_jmp = DISAS_EXIT;
- tcg_temp_free(t0);
- }
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
-#endif
- case 0x2d:
- switch (minor) {
- case SYNC:
- gen_sync(extract32(ctx->opcode, 16, 5));
- break;
- case SYSCALL:
- generate_exception_end(ctx, EXCP_SYSCALL);
- break;
- case SDBBP:
- if (is_uhi(extract32(ctx->opcode, 16, 10))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- check_insn(ctx, ISA_MIPS_R1);
- if (ctx->hflags & MIPS_HFLAG_SBRI) {
- gen_reserved_instruction(ctx);
- } else {
- generate_exception_end(ctx, EXCP_DBp);
- }
- }
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x01:
- switch (minor & 3) {
- case MFHI_ACC:
- gen_HILO(ctx, OPC_MFHI, minor >> 2, rs);
- break;
- case MFLO_ACC:
- gen_HILO(ctx, OPC_MFLO, minor >> 2, rs);
- break;
- case MTHI_ACC:
- gen_HILO(ctx, OPC_MTHI, minor >> 2, rs);
- break;
- case MTLO_ACC:
- gen_HILO(ctx, OPC_MTLO, minor >> 2, rs);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x35:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- switch (minor) {
- case MFHI32:
- gen_HILO(ctx, OPC_MFHI, 0, rs);
- break;
- case MFLO32:
- gen_HILO(ctx, OPC_MFLO, 0, rs);
- break;
- case MTHI32:
- gen_HILO(ctx, OPC_MTHI, 0, rs);
- break;
- case MTLO32:
- gen_HILO(ctx, OPC_MTLO, 0, rs);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- default:
- pool32axf_invalid:
- MIPS_INVAL("pool32axf");
- gen_reserved_instruction(ctx);
- break;
- }
-}
+/* microMIPS extension to MIPS32/MIPS64 */
/*
* Values for microMIPS fmt field. Variable-width, depending on which
@@ -13874,1870 +12518,7 @@ enum {
FMT_DWL_L = 2
};
-static void gen_pool32fxf(DisasContext *ctx, int rt, int rs)
-{
- int extension = (ctx->opcode >> 6) & 0x3ff;
- uint32_t mips32_op;
-
-#define FLOAT_1BIT_FMT(opc, fmt) ((fmt << 8) | opc)
-#define FLOAT_2BIT_FMT(opc, fmt) ((fmt << 7) | opc)
-#define COND_FLOAT_MOV(opc, cond) ((cond << 7) | opc)
-
- switch (extension) {
- case FLOAT_1BIT_FMT(CFC1, 0):
- mips32_op = OPC_CFC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(CTC1, 0):
- mips32_op = OPC_CTC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MFC1, 0):
- mips32_op = OPC_MFC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MTC1, 0):
- mips32_op = OPC_MTC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MFHC1, 0):
- mips32_op = OPC_MFHC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MTHC1, 0):
- mips32_op = OPC_MTHC1;
- do_cp1:
- gen_cp1(ctx, mips32_op, rt, rs);
- break;
-
- /* Reciprocal square root */
- case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_S):
- mips32_op = OPC_RSQRT_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_D):
- mips32_op = OPC_RSQRT_D;
- goto do_unaryfp;
-
- /* Square root */
- case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_S):
- mips32_op = OPC_SQRT_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_D):
- mips32_op = OPC_SQRT_D;
- goto do_unaryfp;
-
- /* Reciprocal */
- case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_S):
- mips32_op = OPC_RECIP_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_D):
- mips32_op = OPC_RECIP_D;
- goto do_unaryfp;
-
- /* Floor */
- case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_S):
- mips32_op = OPC_FLOOR_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_D):
- mips32_op = OPC_FLOOR_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_S):
- mips32_op = OPC_FLOOR_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_D):
- mips32_op = OPC_FLOOR_W_D;
- goto do_unaryfp;
-
- /* Ceiling */
- case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_S):
- mips32_op = OPC_CEIL_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_D):
- mips32_op = OPC_CEIL_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_S):
- mips32_op = OPC_CEIL_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_D):
- mips32_op = OPC_CEIL_W_D;
- goto do_unaryfp;
-
- /* Truncation */
- case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_S):
- mips32_op = OPC_TRUNC_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_D):
- mips32_op = OPC_TRUNC_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_S):
- mips32_op = OPC_TRUNC_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_D):
- mips32_op = OPC_TRUNC_W_D;
- goto do_unaryfp;
-
- /* Round */
- case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_S):
- mips32_op = OPC_ROUND_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_D):
- mips32_op = OPC_ROUND_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_S):
- mips32_op = OPC_ROUND_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_D):
- mips32_op = OPC_ROUND_W_D;
- goto do_unaryfp;
-
- /* Integer to floating-point conversion */
- case FLOAT_1BIT_FMT(CVT_L, FMT_SD_S):
- mips32_op = OPC_CVT_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_L, FMT_SD_D):
- mips32_op = OPC_CVT_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_W, FMT_SD_S):
- mips32_op = OPC_CVT_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_W, FMT_SD_D):
- mips32_op = OPC_CVT_W_D;
- goto do_unaryfp;
-
- /* Paired-foo conversions */
- case FLOAT_1BIT_FMT(CVT_S_PL, 0):
- mips32_op = OPC_CVT_S_PL;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_S_PU, 0):
- mips32_op = OPC_CVT_S_PU;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_PW_PS, 0):
- mips32_op = OPC_CVT_PW_PS;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_PS_PW, 0):
- mips32_op = OPC_CVT_PS_PW;
- goto do_unaryfp;
-
- /* Floating-point moves */
- case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_S):
- mips32_op = OPC_MOV_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_D):
- mips32_op = OPC_MOV_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_PS):
- mips32_op = OPC_MOV_PS;
- goto do_unaryfp;
-
- /* Absolute value */
- case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_S):
- mips32_op = OPC_ABS_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_D):
- mips32_op = OPC_ABS_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_PS):
- mips32_op = OPC_ABS_PS;
- goto do_unaryfp;
-
- /* Negation */
- case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_S):
- mips32_op = OPC_NEG_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_D):
- mips32_op = OPC_NEG_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_PS):
- mips32_op = OPC_NEG_PS;
- goto do_unaryfp;
-
- /* Reciprocal square root step */
- case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_S):
- mips32_op = OPC_RSQRT1_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_D):
- mips32_op = OPC_RSQRT1_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_PS):
- mips32_op = OPC_RSQRT1_PS;
- goto do_unaryfp;
-
- /* Reciprocal step */
- case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_S):
- mips32_op = OPC_RECIP1_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_D):
- mips32_op = OPC_RECIP1_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_PS):
- mips32_op = OPC_RECIP1_PS;
- goto do_unaryfp;
-
- /* Conversions from double */
- case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_S):
- mips32_op = OPC_CVT_D_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_W):
- mips32_op = OPC_CVT_D_W;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_L):
- mips32_op = OPC_CVT_D_L;
- goto do_unaryfp;
-
- /* Conversions from single */
- case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_D):
- mips32_op = OPC_CVT_S_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_W):
- mips32_op = OPC_CVT_S_W;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_L):
- mips32_op = OPC_CVT_S_L;
- do_unaryfp:
- gen_farith(ctx, mips32_op, -1, rs, rt, 0);
- break;
-
- /* Conditional moves on floating-point codes */
- case COND_FLOAT_MOV(MOVT, 0):
- case COND_FLOAT_MOV(MOVT, 1):
- case COND_FLOAT_MOV(MOVT, 2):
- case COND_FLOAT_MOV(MOVT, 3):
- case COND_FLOAT_MOV(MOVT, 4):
- case COND_FLOAT_MOV(MOVT, 5):
- case COND_FLOAT_MOV(MOVT, 6):
- case COND_FLOAT_MOV(MOVT, 7):
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 1);
- break;
- case COND_FLOAT_MOV(MOVF, 0):
- case COND_FLOAT_MOV(MOVF, 1):
- case COND_FLOAT_MOV(MOVF, 2):
- case COND_FLOAT_MOV(MOVF, 3):
- case COND_FLOAT_MOV(MOVF, 4):
- case COND_FLOAT_MOV(MOVF, 5):
- case COND_FLOAT_MOV(MOVF, 6):
- case COND_FLOAT_MOV(MOVF, 7):
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 0);
- break;
- default:
- MIPS_INVAL("pool32fxf");
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx)
-{
- int32_t offset;
- uint16_t insn;
- int rt, rs, rd, rr;
- int16_t imm;
- uint32_t op, minor, minor2, mips32_op;
- uint32_t cond, fmt, cc;
-
- insn = translator_lduw(env, ctx->base.pc_next + 2);
- ctx->opcode = (ctx->opcode << 16) | insn;
-
- rt = (ctx->opcode >> 21) & 0x1f;
- rs = (ctx->opcode >> 16) & 0x1f;
- rd = (ctx->opcode >> 11) & 0x1f;
- rr = (ctx->opcode >> 6) & 0x1f;
- imm = (int16_t) ctx->opcode;
-
- op = (ctx->opcode >> 26) & 0x3f;
- switch (op) {
- case POOL32A:
- minor = ctx->opcode & 0x3f;
- switch (minor) {
- case 0x00:
- minor = (ctx->opcode >> 6) & 0xf;
- switch (minor) {
- case SLL32:
- mips32_op = OPC_SLL;
- goto do_shifti;
- case SRA:
- mips32_op = OPC_SRA;
- goto do_shifti;
- case SRL32:
- mips32_op = OPC_SRL;
- goto do_shifti;
- case ROTR:
- mips32_op = OPC_ROTR;
- do_shifti:
- gen_shift_imm(ctx, mips32_op, rt, rs, rd);
- break;
- case SELEQZ:
- check_insn(ctx, ISA_MIPS_R6);
- gen_cond_move(ctx, OPC_SELEQZ, rd, rs, rt);
- break;
- case SELNEZ:
- check_insn(ctx, ISA_MIPS_R6);
- gen_cond_move(ctx, OPC_SELNEZ, rd, rs, rt);
- break;
- case R6_RDHWR:
- check_insn(ctx, ISA_MIPS_R6);
- gen_rdhwr(ctx, rt, rs, extract32(ctx->opcode, 11, 3));
- break;
- default:
- goto pool32a_invalid;
- }
- break;
- case 0x10:
- minor = (ctx->opcode >> 6) & 0xf;
- switch (minor) {
- /* Arithmetic */
- case ADD:
- mips32_op = OPC_ADD;
- goto do_arith;
- case ADDU32:
- mips32_op = OPC_ADDU;
- goto do_arith;
- case SUB:
- mips32_op = OPC_SUB;
- goto do_arith;
- case SUBU32:
- mips32_op = OPC_SUBU;
- goto do_arith;
- case MUL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MUL;
- do_arith:
- gen_arith(ctx, mips32_op, rd, rs, rt);
- break;
- /* Shifts */
- case SLLV:
- mips32_op = OPC_SLLV;
- goto do_shift;
- case SRLV:
- mips32_op = OPC_SRLV;
- goto do_shift;
- case SRAV:
- mips32_op = OPC_SRAV;
- goto do_shift;
- case ROTRV:
- mips32_op = OPC_ROTRV;
- do_shift:
- gen_shift(ctx, mips32_op, rd, rs, rt);
- break;
- /* Logical operations */
- case AND:
- mips32_op = OPC_AND;
- goto do_logic;
- case OR32:
- mips32_op = OPC_OR;
- goto do_logic;
- case NOR:
- mips32_op = OPC_NOR;
- goto do_logic;
- case XOR32:
- mips32_op = OPC_XOR;
- do_logic:
- gen_logic(ctx, mips32_op, rd, rs, rt);
- break;
- /* Set less than */
- case SLT:
- mips32_op = OPC_SLT;
- goto do_slt;
- case SLTU:
- mips32_op = OPC_SLTU;
- do_slt:
- gen_slt(ctx, mips32_op, rd, rs, rt);
- break;
- default:
- goto pool32a_invalid;
- }
- break;
- case 0x18:
- minor = (ctx->opcode >> 6) & 0xf;
- switch (minor) {
- /* Conditional moves */
- case MOVN: /* MUL */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* MUL */
- gen_r6_muldiv(ctx, R6_OPC_MUL, rd, rs, rt);
- } else {
- /* MOVN */
- gen_cond_move(ctx, OPC_MOVN, rd, rs, rt);
- }
- break;
- case MOVZ: /* MUH */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* MUH */
- gen_r6_muldiv(ctx, R6_OPC_MUH, rd, rs, rt);
- } else {
- /* MOVZ */
- gen_cond_move(ctx, OPC_MOVZ, rd, rs, rt);
- }
- break;
- case MULU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MULU, rd, rs, rt);
- break;
- case MUHU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MUHU, rd, rs, rt);
- break;
- case LWXS: /* DIV */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* DIV */
- gen_r6_muldiv(ctx, R6_OPC_DIV, rd, rs, rt);
- } else {
- /* LWXS */
- gen_ldxs(ctx, rs, rt, rd);
- }
- break;
- case MOD:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MOD, rd, rs, rt);
- break;
- case R6_DIVU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_DIVU, rd, rs, rt);
- break;
- case MODU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MODU, rd, rs, rt);
- break;
- default:
- goto pool32a_invalid;
- }
- break;
- case INS:
- gen_bitops(ctx, OPC_INS, rt, rs, rr, rd);
- return;
- case LSA:
- check_insn(ctx, ISA_MIPS_R6);
- gen_lsa(ctx, rd, rt, rs, extract32(ctx->opcode, 9, 2));
- break;
- case ALIGN:
- check_insn(ctx, ISA_MIPS_R6);
- gen_align(ctx, 32, rd, rs, rt, extract32(ctx->opcode, 9, 2));
- break;
- case EXT:
- gen_bitops(ctx, OPC_EXT, rt, rs, rr, rd);
- return;
- case POOL32AXF:
- gen_pool32axf(env, ctx, rt, rs);
- break;
- case BREAK32:
- generate_exception_end(ctx, EXCP_BREAK);
- break;
- case SIGRIE:
- check_insn(ctx, ISA_MIPS_R6);
- gen_reserved_instruction(ctx);
- break;
- default:
- pool32a_invalid:
- MIPS_INVAL("pool32a");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case POOL32B:
- minor = (ctx->opcode >> 12) & 0xf;
- switch (minor) {
- case CACHE:
- check_cp0_enabled(ctx);
- if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
- gen_cache_operation(ctx, rt, rs, imm);
- }
- break;
- case LWC2:
- case SWC2:
- /* COP2: Not implemented. */
- generate_exception_err(ctx, EXCP_CpU, 2);
- break;
-#ifdef TARGET_MIPS64
- case LDP:
- case SDP:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
-#endif
- /* fall through */
- case LWP:
- case SWP:
- gen_ldst_pair(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
- break;
-#ifdef TARGET_MIPS64
- case LDM:
- case SDM:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
-#endif
- /* fall through */
- case LWM32:
- case SWM32:
- gen_ldst_multiple(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
- break;
- default:
- MIPS_INVAL("pool32b");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case POOL32F:
- if (ctx->CP0_Config1 & (1 << CP0C1_FP)) {
- minor = ctx->opcode & 0x3f;
- check_cp1_enabled(ctx);
- switch (minor) {
- case ALNV_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_ALNV_PS;
- goto do_madd;
- case MADD_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD_S;
- goto do_madd;
- case MADD_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD_D;
- goto do_madd;
- case MADD_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD_PS;
- goto do_madd;
- case MSUB_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB_S;
- goto do_madd;
- case MSUB_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB_D;
- goto do_madd;
- case MSUB_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB_PS;
- goto do_madd;
- case NMADD_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMADD_S;
- goto do_madd;
- case NMADD_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMADD_D;
- goto do_madd;
- case NMADD_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMADD_PS;
- goto do_madd;
- case NMSUB_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMSUB_S;
- goto do_madd;
- case NMSUB_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMSUB_D;
- goto do_madd;
- case NMSUB_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMSUB_PS;
- do_madd:
- gen_flt3_arith(ctx, mips32_op, rd, rr, rs, rt);
- break;
- case CABS_COND_FMT:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- cond = (ctx->opcode >> 6) & 0xf;
- cc = (ctx->opcode >> 13) & 0x7;
- fmt = (ctx->opcode >> 10) & 0x3;
- switch (fmt) {
- case 0x0:
- gen_cmpabs_s(ctx, cond, rt, rs, cc);
- break;
- case 0x1:
- gen_cmpabs_d(ctx, cond, rt, rs, cc);
- break;
- case 0x2:
- gen_cmpabs_ps(ctx, cond, rt, rs, cc);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case C_COND_FMT:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- cond = (ctx->opcode >> 6) & 0xf;
- cc = (ctx->opcode >> 13) & 0x7;
- fmt = (ctx->opcode >> 10) & 0x3;
- switch (fmt) {
- case 0x0:
- gen_cmp_s(ctx, cond, rt, rs, cc);
- break;
- case 0x1:
- gen_cmp_d(ctx, cond, rt, rs, cc);
- break;
- case 0x2:
- gen_cmp_ps(ctx, cond, rt, rs, cc);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case CMP_CONDN_S:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_cmp_s(ctx, (ctx->opcode >> 6) & 0x1f, rt, rs, rd);
- break;
- case CMP_CONDN_D:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_cmp_d(ctx, (ctx->opcode >> 6) & 0x1f, rt, rs, rd);
- break;
- case POOL32FXF:
- gen_pool32fxf(ctx, rt, rs);
- break;
- case 0x00:
- /* PLL foo */
- switch ((ctx->opcode >> 6) & 0x7) {
- case PLL_PS:
- mips32_op = OPC_PLL_PS;
- goto do_ps;
- case PLU_PS:
- mips32_op = OPC_PLU_PS;
- goto do_ps;
- case PUL_PS:
- mips32_op = OPC_PUL_PS;
- goto do_ps;
- case PUU_PS:
- mips32_op = OPC_PUU_PS;
- goto do_ps;
- case CVT_PS_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_CVT_PS_S;
- do_ps:
- gen_farith(ctx, mips32_op, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MIN_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MIN_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MIN_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x08:
- /* [LS][WDU]XC1 */
- switch ((ctx->opcode >> 6) & 0x7) {
- case LWXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWXC1;
- goto do_ldst_cp1;
- case SWXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWXC1;
- goto do_ldst_cp1;
- case LDXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LDXC1;
- goto do_ldst_cp1;
- case SDXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SDXC1;
- goto do_ldst_cp1;
- case LUXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LUXC1;
- goto do_ldst_cp1;
- case SUXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SUXC1;
- do_ldst_cp1:
- gen_flt3_ldst(ctx, mips32_op, rd, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MAX_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MAX_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MAX_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x18:
- /* 3D insns */
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- fmt = (ctx->opcode >> 9) & 0x3;
- switch ((ctx->opcode >> 6) & 0x7) {
- case RSQRT2_FMT:
- switch (fmt) {
- case FMT_SDPS_S:
- mips32_op = OPC_RSQRT2_S;
- goto do_3d;
- case FMT_SDPS_D:
- mips32_op = OPC_RSQRT2_D;
- goto do_3d;
- case FMT_SDPS_PS:
- mips32_op = OPC_RSQRT2_PS;
- goto do_3d;
- default:
- goto pool32f_invalid;
- }
- break;
- case RECIP2_FMT:
- switch (fmt) {
- case FMT_SDPS_S:
- mips32_op = OPC_RECIP2_S;
- goto do_3d;
- case FMT_SDPS_D:
- mips32_op = OPC_RECIP2_D;
- goto do_3d;
- case FMT_SDPS_PS:
- mips32_op = OPC_RECIP2_PS;
- goto do_3d;
- default:
- goto pool32f_invalid;
- }
- break;
- case ADDR_PS:
- mips32_op = OPC_ADDR_PS;
- goto do_3d;
- case MULR_PS:
- mips32_op = OPC_MULR_PS;
- do_3d:
- gen_farith(ctx, mips32_op, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x20:
- /* MOV[FT].fmt, PREFX, RINT.fmt, CLASS.fmt*/
- cc = (ctx->opcode >> 13) & 0x7;
- fmt = (ctx->opcode >> 9) & 0x3;
- switch ((ctx->opcode >> 6) & 0x7) {
- case MOVF_FMT: /* RINT_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* RINT_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_RINT_S, 0, rt, rs, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_RINT_D, 0, rt, rs, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVF_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_movcf_s(ctx, rs, rt, cc, 0);
- break;
- case FMT_SDPS_D:
- gen_movcf_d(ctx, rs, rt, cc, 0);
- break;
- case FMT_SDPS_PS:
- check_ps(ctx);
- gen_movcf_ps(ctx, rs, rt, cc, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- }
- break;
- case MOVT_FMT: /* CLASS_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* CLASS_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_CLASS_S, 0, rt, rs, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_CLASS_D, 0, rt, rs, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVT_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_movcf_s(ctx, rs, rt, cc, 1);
- break;
- case FMT_SDPS_D:
- gen_movcf_d(ctx, rs, rt, cc, 1);
- break;
- case FMT_SDPS_PS:
- check_ps(ctx);
- gen_movcf_ps(ctx, rs, rt, cc, 1);
- break;
- default:
- goto pool32f_invalid;
- }
- }
- break;
- case PREFX:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
-#define FINSN_3ARG_SDPS(prfx) \
- switch ((ctx->opcode >> 8) & 0x3) { \
- case FMT_SDPS_S: \
- mips32_op = OPC_##prfx##_S; \
- goto do_fpop; \
- case FMT_SDPS_D: \
- mips32_op = OPC_##prfx##_D; \
- goto do_fpop; \
- case FMT_SDPS_PS: \
- check_ps(ctx); \
- mips32_op = OPC_##prfx##_PS; \
- goto do_fpop; \
- default: \
- goto pool32f_invalid; \
- }
- case MINA_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MINA_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MINA_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MAXA_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MAXA_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MAXA_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x30:
- /* regular FP ops */
- switch ((ctx->opcode >> 6) & 0x3) {
- case ADD_FMT:
- FINSN_3ARG_SDPS(ADD);
- break;
- case SUB_FMT:
- FINSN_3ARG_SDPS(SUB);
- break;
- case MUL_FMT:
- FINSN_3ARG_SDPS(MUL);
- break;
- case DIV_FMT:
- fmt = (ctx->opcode >> 8) & 0x3;
- if (fmt == 1) {
- mips32_op = OPC_DIV_D;
- } else if (fmt == 0) {
- mips32_op = OPC_DIV_S;
- } else {
- goto pool32f_invalid;
- }
- goto do_fpop;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x38:
- /* cmovs */
- switch ((ctx->opcode >> 6) & 0x7) {
- case MOVN_FMT: /* SELEQZ_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* SELEQZ_FMT */
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_sel_s(ctx, OPC_SELEQZ_S, rd, rt, rs);
- break;
- case FMT_SDPS_D:
- gen_sel_d(ctx, OPC_SELEQZ_D, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVN_FMT */
- FINSN_3ARG_SDPS(MOVN);
- }
- break;
- case MOVN_FMT_04:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- FINSN_3ARG_SDPS(MOVN);
- break;
- case MOVZ_FMT: /* SELNEZ_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* SELNEZ_FMT */
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_sel_s(ctx, OPC_SELNEZ_S, rd, rt, rs);
- break;
- case FMT_SDPS_D:
- gen_sel_d(ctx, OPC_SELNEZ_D, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVZ_FMT */
- FINSN_3ARG_SDPS(MOVZ);
- }
- break;
- case MOVZ_FMT_05:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- FINSN_3ARG_SDPS(MOVZ);
- break;
- case SEL_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_sel_s(ctx, OPC_SEL_S, rd, rt, rs);
- break;
- case FMT_SDPS_D:
- gen_sel_d(ctx, OPC_SEL_D, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MADDF_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- mips32_op = OPC_MADDF_S;
- goto do_fpop;
- case FMT_SDPS_D:
- mips32_op = OPC_MADDF_D;
- goto do_fpop;
- default:
- goto pool32f_invalid;
- }
- break;
- case MSUBF_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- mips32_op = OPC_MSUBF_S;
- goto do_fpop;
- case FMT_SDPS_D:
- mips32_op = OPC_MSUBF_D;
- goto do_fpop;
- default:
- goto pool32f_invalid;
- }
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- do_fpop:
- gen_farith(ctx, mips32_op, rt, rs, rd, 0);
- break;
- default:
- pool32f_invalid:
- MIPS_INVAL("pool32f");
- gen_reserved_instruction(ctx);
- break;
- }
- } else {
- generate_exception_err(ctx, EXCP_CpU, 1);
- }
- break;
- case POOL32I:
- minor = (ctx->opcode >> 21) & 0x1f;
- switch (minor) {
- case BLTZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLTZ, 4, rs, -1, imm << 1, 4);
- break;
- case BLTZAL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLTZAL, 4, rs, -1, imm << 1, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BLTZALS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLTZAL, 4, rs, -1, imm << 1, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BGEZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGEZ, 4, rs, -1, imm << 1, 4);
- break;
- case BGEZAL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGEZAL, 4, rs, -1, imm << 1, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BGEZALS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGEZAL, 4, rs, -1, imm << 1, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BLEZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLEZ, 4, rs, -1, imm << 1, 4);
- break;
- case BGTZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGTZ, 4, rs, -1, imm << 1, 4);
- break;
-
- /* Traps */
- case TLTI: /* BC1EQZC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BC1EQZC */
- check_cp1_enabled(ctx);
- gen_compute_branch1_r6(ctx, OPC_BC1EQZ, rs, imm << 1, 0);
- } else {
- /* TLTI */
- mips32_op = OPC_TLTI;
- goto do_trapi;
- }
- break;
- case TGEI: /* BC1NEZC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BC1NEZC */
- check_cp1_enabled(ctx);
- gen_compute_branch1_r6(ctx, OPC_BC1NEZ, rs, imm << 1, 0);
- } else {
- /* TGEI */
- mips32_op = OPC_TGEI;
- goto do_trapi;
- }
- break;
- case TLTIU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_TLTIU;
- goto do_trapi;
- case TGEIU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_TGEIU;
- goto do_trapi;
- case TNEI: /* SYNCI */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* SYNCI */
- /*
- * Break the TB to be able to sync copied instructions
- * immediately.
- */
- ctx->base.is_jmp = DISAS_STOP;
- } else {
- /* TNEI */
- mips32_op = OPC_TNEI;
- goto do_trapi;
- }
- break;
- case TEQI:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_TEQI;
- do_trapi:
- gen_trap(ctx, mips32_op, rs, -1, imm);
- break;
-
- case BNEZC:
- case BEQZC:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, minor == BNEZC ? OPC_BNE : OPC_BEQ,
- 4, rs, 0, imm << 1, 0);
- /*
- * Compact branches don't have a delay slot, so just let
- * the normal delay slot handling take us to the branch
- * target.
- */
- break;
- case LUI:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_logic_imm(ctx, OPC_LUI, rs, 0, imm);
- break;
- case SYNCI:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- /*
- * Break the TB to be able to sync copied instructions
- * immediately.
- */
- ctx->base.is_jmp = DISAS_STOP;
- break;
- case BC2F:
- case BC2T:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- /* COP2: Not implemented. */
- generate_exception_err(ctx, EXCP_CpU, 2);
- break;
- case BC1F:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1FANY2 : OPC_BC1F;
- goto do_cp1branch;
- case BC1T:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1TANY2 : OPC_BC1T;
- goto do_cp1branch;
- case BC1ANY4F:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_BC1FANY4;
- goto do_cp1mips3d;
- case BC1ANY4T:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_BC1TANY4;
- do_cp1mips3d:
- check_cop1x(ctx);
- check_insn(ctx, ASE_MIPS3D);
- /* Fall through */
- do_cp1branch:
- if (env->CP0_Config1 & (1 << CP0C1_FP)) {
- check_cp1_enabled(ctx);
- gen_compute_branch1(ctx, mips32_op,
- (ctx->opcode >> 18) & 0x7, imm << 1);
- } else {
- generate_exception_err(ctx, EXCP_CpU, 1);
- }
- break;
- default:
- MIPS_INVAL("pool32i");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case POOL32C:
- minor = (ctx->opcode >> 12) & 0xf;
- offset = sextract32(ctx->opcode, 0,
- (ctx->insn_flags & ISA_MIPS_R6) ? 9 : 12);
- switch (minor) {
- case LWL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWL;
- goto do_ld_lr;
- case SWL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWL;
- goto do_st_lr;
- case LWR:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWR;
- goto do_ld_lr;
- case SWR:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWR;
- goto do_st_lr;
-#if defined(TARGET_MIPS64)
- case LDL:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LDL;
- goto do_ld_lr;
- case SDL:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SDL;
- goto do_st_lr;
- case LDR:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LDR;
- goto do_ld_lr;
- case SDR:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SDR;
- goto do_st_lr;
- case LWU:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_LWU;
- goto do_ld_lr;
- case LLD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_LLD;
- goto do_ld_lr;
-#endif
- case LL:
- mips32_op = OPC_LL;
- goto do_ld_lr;
- do_ld_lr:
- gen_ld(ctx, mips32_op, rt, rs, offset);
- break;
- do_st_lr:
- gen_st(ctx, mips32_op, rt, rs, offset);
- break;
- case SC:
- gen_st_cond(ctx, rt, rs, offset, MO_TESL, false);
- break;
-#if defined(TARGET_MIPS64)
- case SCD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_st_cond(ctx, rt, rs, offset, MO_TEQ, false);
- break;
-#endif
- case LD_EVA:
- if (!ctx->eva) {
- MIPS_INVAL("pool32c ld-eva");
- gen_reserved_instruction(ctx);
- break;
- }
- check_cp0_enabled(ctx);
-
- minor2 = (ctx->opcode >> 9) & 0x7;
- offset = sextract32(ctx->opcode, 0, 9);
- switch (minor2) {
- case LBUE:
- mips32_op = OPC_LBUE;
- goto do_ld_lr;
- case LHUE:
- mips32_op = OPC_LHUE;
- goto do_ld_lr;
- case LWLE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWLE;
- goto do_ld_lr;
- case LWRE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWRE;
- goto do_ld_lr;
- case LBE:
- mips32_op = OPC_LBE;
- goto do_ld_lr;
- case LHE:
- mips32_op = OPC_LHE;
- goto do_ld_lr;
- case LLE:
- mips32_op = OPC_LLE;
- goto do_ld_lr;
- case LWE:
- mips32_op = OPC_LWE;
- goto do_ld_lr;
- };
- break;
- case ST_EVA:
- if (!ctx->eva) {
- MIPS_INVAL("pool32c st-eva");
- gen_reserved_instruction(ctx);
- break;
- }
- check_cp0_enabled(ctx);
-
- minor2 = (ctx->opcode >> 9) & 0x7;
- offset = sextract32(ctx->opcode, 0, 9);
- switch (minor2) {
- case SWLE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWLE;
- goto do_st_lr;
- case SWRE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWRE;
- goto do_st_lr;
- case PREFE:
- /* Treat as no-op */
- if ((ctx->insn_flags & ISA_MIPS_R6) && (rt >= 24)) {
- /* hint codes 24-31 are reserved and signal RI */
- generate_exception(ctx, EXCP_RI);
- }
- break;
- case CACHEE:
- /* Treat as no-op */
- if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
- gen_cache_operation(ctx, rt, rs, offset);
- }
- break;
- case SBE:
- mips32_op = OPC_SBE;
- goto do_st_lr;
- case SHE:
- mips32_op = OPC_SHE;
- goto do_st_lr;
- case SCE:
- gen_st_cond(ctx, rt, rs, offset, MO_TESL, true);
- break;
- case SWE:
- mips32_op = OPC_SWE;
- goto do_st_lr;
- };
- break;
- case PREF:
- /* Treat as no-op */
- if ((ctx->insn_flags & ISA_MIPS_R6) && (rt >= 24)) {
- /* hint codes 24-31 are reserved and signal RI */
- generate_exception(ctx, EXCP_RI);
- }
- break;
- default:
- MIPS_INVAL("pool32c");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case ADDI32: /* AUI, LUI */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* AUI, LUI */
- gen_logic_imm(ctx, OPC_LUI, rt, rs, imm);
- } else {
- /* ADDI32 */
- mips32_op = OPC_ADDI;
- goto do_addi;
- }
- break;
- case ADDIU32:
- mips32_op = OPC_ADDIU;
- do_addi:
- gen_arith_imm(ctx, mips32_op, rt, rs, imm);
- break;
-
- /* Logical operations */
- case ORI32:
- mips32_op = OPC_ORI;
- goto do_logici;
- case XORI32:
- mips32_op = OPC_XORI;
- goto do_logici;
- case ANDI32:
- mips32_op = OPC_ANDI;
- do_logici:
- gen_logic_imm(ctx, mips32_op, rt, rs, imm);
- break;
-
- /* Set less than immediate */
- case SLTI32:
- mips32_op = OPC_SLTI;
- goto do_slti;
- case SLTIU32:
- mips32_op = OPC_SLTIU;
- do_slti:
- gen_slt_imm(ctx, mips32_op, rt, rs, imm);
- break;
- case JALX32:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
- gen_compute_branch(ctx, OPC_JALX, 4, rt, rs, offset, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case JALS32: /* BOVC, BEQC, BEQZALC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- if (rs >= rt) {
- /* BOVC */
- mips32_op = OPC_BOVC;
- } else if (rs < rt && rs == 0) {
- /* BEQZALC */
- mips32_op = OPC_BEQZALC;
- } else {
- /* BEQC */
- mips32_op = OPC_BEQC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- } else {
- /* JALS32 */
- offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 1;
- gen_compute_branch(ctx, OPC_JAL, 4, rt, rs, offset, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- }
- break;
- case BEQ32: /* BC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BC */
- gen_compute_compact_branch(ctx, OPC_BC, 0, 0,
- sextract32(ctx->opcode << 1, 0, 27));
- } else {
- /* BEQ32 */
- gen_compute_branch(ctx, OPC_BEQ, 4, rt, rs, imm << 1, 4);
- }
- break;
- case BNE32: /* BALC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BALC */
- gen_compute_compact_branch(ctx, OPC_BALC, 0, 0,
- sextract32(ctx->opcode << 1, 0, 27));
- } else {
- /* BNE32 */
- gen_compute_branch(ctx, OPC_BNE, 4, rt, rs, imm << 1, 4);
- }
- break;
- case J32: /* BGTZC, BLTZC, BLTC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- if (rs == 0 && rt != 0) {
- /* BGTZC */
- mips32_op = OPC_BGTZC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BLTZC */
- mips32_op = OPC_BLTZC;
- } else {
- /* BLTC */
- mips32_op = OPC_BLTC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- } else {
- /* J32 */
- gen_compute_branch(ctx, OPC_J, 4, rt, rs,
- (int32_t)(ctx->opcode & 0x3FFFFFF) << 1, 4);
- }
- break;
- case JAL32: /* BLEZC, BGEZC, BGEC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- if (rs == 0 && rt != 0) {
- /* BLEZC */
- mips32_op = OPC_BLEZC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BGEZC */
- mips32_op = OPC_BGEZC;
- } else {
- /* BGEC */
- mips32_op = OPC_BGEC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- } else {
- /* JAL32 */
- gen_compute_branch(ctx, OPC_JAL, 4, rt, rs,
- (int32_t)(ctx->opcode & 0x3FFFFFF) << 1, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- }
- break;
- /* Floating point (COP1) */
- case LWC132:
- mips32_op = OPC_LWC1;
- goto do_cop1;
- case LDC132:
- mips32_op = OPC_LDC1;
- goto do_cop1;
- case SWC132:
- mips32_op = OPC_SWC1;
- goto do_cop1;
- case SDC132:
- mips32_op = OPC_SDC1;
- do_cop1:
- gen_cop1_ldst(ctx, mips32_op, rt, rs, imm);
- break;
- case ADDIUPC: /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */
- switch ((ctx->opcode >> 16) & 0x1f) {
- case ADDIUPC_00:
- case ADDIUPC_01:
- case ADDIUPC_02:
- case ADDIUPC_03:
- case ADDIUPC_04:
- case ADDIUPC_05:
- case ADDIUPC_06:
- case ADDIUPC_07:
- gen_pcrel(ctx, OPC_ADDIUPC, ctx->base.pc_next & ~0x3, rt);
- break;
- case AUIPC:
- gen_pcrel(ctx, OPC_AUIPC, ctx->base.pc_next, rt);
- break;
- case ALUIPC:
- gen_pcrel(ctx, OPC_ALUIPC, ctx->base.pc_next, rt);
- break;
- case LWPC_08:
- case LWPC_09:
- case LWPC_0A:
- case LWPC_0B:
- case LWPC_0C:
- case LWPC_0D:
- case LWPC_0E:
- case LWPC_0F:
- gen_pcrel(ctx, R6_OPC_LWPC, ctx->base.pc_next & ~0x3, rt);
- break;
- default:
- generate_exception(ctx, EXCP_RI);
- break;
- }
- } else {
- /* ADDIUPC */
- int reg = mmreg(ZIMM(ctx->opcode, 23, 3));
- offset = SIMM(ctx->opcode, 0, 23) << 2;
-
- gen_addiupc(ctx, reg, offset, 0, 0);
- }
- break;
- case BNVC: /* BNEC, BNEZALC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rs >= rt) {
- /* BNVC */
- mips32_op = OPC_BNVC;
- } else if (rs < rt && rs == 0) {
- /* BNEZALC */
- mips32_op = OPC_BNEZALC;
- } else {
- /* BNEC */
- mips32_op = OPC_BNEC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- break;
- case R6_BNEZC: /* JIALC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rt != 0) {
- /* BNEZC */
- gen_compute_compact_branch(ctx, OPC_BNEZC, rt, 0,
- sextract32(ctx->opcode << 1, 0, 22));
- } else {
- /* JIALC */
- gen_compute_compact_branch(ctx, OPC_JIALC, 0, rs, imm);
- }
- break;
- case R6_BEQZC: /* JIC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rt != 0) {
- /* BEQZC */
- gen_compute_compact_branch(ctx, OPC_BEQZC, rt, 0,
- sextract32(ctx->opcode << 1, 0, 22));
- } else {
- /* JIC */
- gen_compute_compact_branch(ctx, OPC_JIC, 0, rs, imm);
- }
- break;
- case BLEZALC: /* BGEZALC, BGEUC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rs == 0 && rt != 0) {
- /* BLEZALC */
- mips32_op = OPC_BLEZALC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BGEZALC */
- mips32_op = OPC_BGEZALC;
- } else {
- /* BGEUC */
- mips32_op = OPC_BGEUC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- break;
- case BGTZALC: /* BLTZALC, BLTUC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rs == 0 && rt != 0) {
- /* BGTZALC */
- mips32_op = OPC_BGTZALC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BLTZALC */
- mips32_op = OPC_BLTZALC;
- } else {
- /* BLTUC */
- mips32_op = OPC_BLTUC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- break;
- /* Loads and stores */
- case LB32:
- mips32_op = OPC_LB;
- goto do_ld;
- case LBU32:
- mips32_op = OPC_LBU;
- goto do_ld;
- case LH32:
- mips32_op = OPC_LH;
- goto do_ld;
- case LHU32:
- mips32_op = OPC_LHU;
- goto do_ld;
- case LW32:
- mips32_op = OPC_LW;
- goto do_ld;
-#ifdef TARGET_MIPS64
- case LD32:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_LD;
- goto do_ld;
- case SD32:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_SD;
- goto do_st;
-#endif
- case SB32:
- mips32_op = OPC_SB;
- goto do_st;
- case SH32:
- mips32_op = OPC_SH;
- goto do_st;
- case SW32:
- mips32_op = OPC_SW;
- goto do_st;
- do_ld:
- gen_ld(ctx, mips32_op, rt, rs, imm);
- break;
- do_st:
- gen_st(ctx, mips32_op, rt, rs, imm);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-static int decode_micromips_opc(CPUMIPSState *env, DisasContext *ctx)
-{
- uint32_t op;
-
- /* make sure instructions are on a halfword boundary */
- if (ctx->base.pc_next & 0x1) {
- env->CP0_BadVAddr = ctx->base.pc_next;
- generate_exception_end(ctx, EXCP_AdEL);
- return 2;
- }
-
- op = (ctx->opcode >> 10) & 0x3f;
- /* Enforce properly-sized instructions in a delay slot */
- if (ctx->hflags & MIPS_HFLAG_BDS_STRICT) {
- switch (op & 0x7) { /* MSB-3..MSB-5 */
- case 0:
- /* POOL32A, POOL32B, POOL32I, POOL32C */
- case 4:
- /* ADDI32, ADDIU32, ORI32, XORI32, SLTI32, SLTIU32, ANDI32, JALX32 */
- case 5:
- /* LBU32, LHU32, POOL32F, JALS32, BEQ32, BNE32, J32, JAL32 */
- case 6:
- /* SB32, SH32, ADDIUPC, SWC132, SDC132, SW32 */
- case 7:
- /* LB32, LH32, LWC132, LDC132, LW32 */
- if (ctx->hflags & MIPS_HFLAG_BDS16) {
- gen_reserved_instruction(ctx);
- return 2;
- }
- break;
- case 1:
- /* POOL16A, POOL16B, POOL16C, LWGP16, POOL16F */
- case 2:
- /* LBU16, LHU16, LWSP16, LW16, SB16, SH16, SWSP16, SW16 */
- case 3:
- /* MOVE16, ANDI16, POOL16D, POOL16E, BEQZ16, BNEZ16, B16, LI16 */
- if (ctx->hflags & MIPS_HFLAG_BDS32) {
- gen_reserved_instruction(ctx);
- return 2;
- }
- break;
- }
- }
-
- switch (op) {
- case POOL16A:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs1 = mmreg(uMIPS_RS1(ctx->opcode));
- int rs2 = mmreg(uMIPS_RS2(ctx->opcode));
- uint32_t opc = 0;
-
- switch (ctx->opcode & 0x1) {
- case ADDU16:
- opc = OPC_ADDU;
- break;
- case SUBU16:
- opc = OPC_SUBU;
- break;
- }
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /*
- * In the Release 6, the register number location in
- * the instruction encoding has changed.
- */
- gen_arith(ctx, opc, rs1, rd, rs2);
- } else {
- gen_arith(ctx, opc, rd, rs1, rs2);
- }
- }
- break;
- case POOL16B:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs = mmreg(uMIPS_RS(ctx->opcode));
- int amount = (ctx->opcode >> 1) & 0x7;
- uint32_t opc = 0;
- amount = amount == 0 ? 8 : amount;
-
- switch (ctx->opcode & 0x1) {
- case SLL16:
- opc = OPC_SLL;
- break;
- case SRL16:
- opc = OPC_SRL;
- break;
- }
-
- gen_shift_imm(ctx, opc, rd, rs, amount);
- }
- break;
- case POOL16C:
- if (ctx->insn_flags & ISA_MIPS_R6) {
- gen_pool16c_r6_insn(ctx);
- } else {
- gen_pool16c_insn(ctx);
- }
- break;
- case LWGP16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = 28; /* GP */
- int16_t offset = SIMM(ctx->opcode, 0, 7) << 2;
-
- gen_ld(ctx, OPC_LW, rd, rb, offset);
- }
- break;
- case POOL16F:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- if (ctx->opcode & 1) {
- gen_reserved_instruction(ctx);
- } else {
- /* MOVEP */
- int enc_dest = uMIPS_RD(ctx->opcode);
- int enc_rt = uMIPS_RS2(ctx->opcode);
- int enc_rs = uMIPS_RS1(ctx->opcode);
- gen_movep(ctx, enc_dest, enc_rt, enc_rs);
- }
- break;
- case LBU16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4);
- offset = (offset == 0xf ? -1 : offset);
-
- gen_ld(ctx, OPC_LBU, rd, rb, offset);
- }
- break;
- case LHU16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
-
- gen_ld(ctx, OPC_LHU, rd, rb, offset);
- }
- break;
- case LWSP16:
- {
- int rd = (ctx->opcode >> 5) & 0x1f;
- int rb = 29; /* SP */
- int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
-
- gen_ld(ctx, OPC_LW, rd, rb, offset);
- }
- break;
- case LW16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
-
- gen_ld(ctx, OPC_LW, rd, rb, offset);
- }
- break;
- case SB16:
- {
- int rd = mmreg2(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4);
-
- gen_st(ctx, OPC_SB, rd, rb, offset);
- }
- break;
- case SH16:
- {
- int rd = mmreg2(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
-
- gen_st(ctx, OPC_SH, rd, rb, offset);
- }
- break;
- case SWSP16:
- {
- int rd = (ctx->opcode >> 5) & 0x1f;
- int rb = 29; /* SP */
- int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
-
- gen_st(ctx, OPC_SW, rd, rb, offset);
- }
- break;
- case SW16:
- {
- int rd = mmreg2(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
-
- gen_st(ctx, OPC_SW, rd, rb, offset);
- }
- break;
- case MOVE16:
- {
- int rd = uMIPS_RD5(ctx->opcode);
- int rs = uMIPS_RS5(ctx->opcode);
-
- gen_arith(ctx, OPC_ADDU, rd, rs, 0);
- }
- break;
- case ANDI16:
- gen_andi16(ctx);
- break;
- case POOL16D:
- switch (ctx->opcode & 0x1) {
- case ADDIUS5:
- gen_addius5(ctx);
- break;
- case ADDIUSP:
- gen_addiusp(ctx);
- break;
- }
- break;
- case POOL16E:
- switch (ctx->opcode & 0x1) {
- case ADDIUR2:
- gen_addiur2(ctx);
- break;
- case ADDIUR1SP:
- gen_addiur1sp(ctx);
- break;
- }
- break;
- case B16: /* BC16 */
- gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0,
- sextract32(ctx->opcode, 0, 10) << 1,
- (ctx->insn_flags & ISA_MIPS_R6) ? 0 : 4);
- break;
- case BNEZ16: /* BNEZC16 */
- case BEQZ16: /* BEQZC16 */
- gen_compute_branch(ctx, op == BNEZ16 ? OPC_BNE : OPC_BEQ, 2,
- mmreg(uMIPS_RD(ctx->opcode)),
- 0, sextract32(ctx->opcode, 0, 7) << 1,
- (ctx->insn_flags & ISA_MIPS_R6) ? 0 : 4);
-
- break;
- case LI16:
- {
- int reg = mmreg(uMIPS_RD(ctx->opcode));
- int imm = ZIMM(ctx->opcode, 0, 7);
-
- imm = (imm == 0x7f ? -1 : imm);
- tcg_gen_movi_tl(cpu_gpr[reg], imm);
- }
- break;
- case RES_29:
- case RES_31:
- case RES_39:
- gen_reserved_instruction(ctx);
- break;
- default:
- decode_micromips32_opc(env, ctx);
- return 4;
- }
-
- return 2;
-}
-
-/* ISA extensions (ASEs) */
-
-/* MIPS16 extension to MIPS32 */
-#include "mips16e_translate.c.inc"
+#include "micromips_translate.c.inc"
/*
*
@@ -24378,7 +21159,7 @@ static void mips_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
decode_opc(env, ctx);
} else if (ctx->insn_flags & ASE_MICROMIPS) {
ctx->opcode = translator_lduw(env, ctx->base.pc_next);
- insn_bytes = decode_micromips_opc(env, ctx);
+ insn_bytes = decode_isa_micromips(env, ctx);
} else if (ctx->insn_flags & ASE_MIPS16) {
ctx->opcode = translator_lduw(env, ctx->base.pc_next);
insn_bytes = decode_ase_mips16e(env, ctx);
new file mode 100644
@@ -0,0 +1,3231 @@
+/*
+ * microMIPS translation routines
+ *
+ * Copyright (c) 2004-2005 Jocelyn Mayer
+ * Copyright (c) 2006 Marius Groeger (FPU operations)
+ * Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support)
+ * Copyright (c) 2009 CodeSourcery (MIPS16 and microMIPS support)
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+/*
+ * microMIPS32/microMIPS64 major opcodes
+ *
+ * 1. MIPS Architecture for Programmers Volume II-B:
+ * The microMIPS32 Instruction Set (Revision 3.05)
+ *
+ * Table 6.2 microMIPS32 Encoding of Major Opcode Field
+ *
+ * 2. MIPS Architecture For Programmers Volume II-A:
+ * The MIPS64 Instruction Set (Revision 3.51)
+ */
+
+enum {
+ POOL32A = 0x00,
+ POOL16A = 0x01,
+ LBU16 = 0x02,
+ MOVE16 = 0x03,
+ ADDI32 = 0x04,
+ R6_LUI = 0x04,
+ AUI = 0x04,
+ LBU32 = 0x05,
+ SB32 = 0x06,
+ LB32 = 0x07,
+
+ POOL32B = 0x08,
+ POOL16B = 0x09,
+ LHU16 = 0x0a,
+ ANDI16 = 0x0b,
+ ADDIU32 = 0x0c,
+ LHU32 = 0x0d,
+ SH32 = 0x0e,
+ LH32 = 0x0f,
+
+ POOL32I = 0x10,
+ POOL16C = 0x11,
+ LWSP16 = 0x12,
+ POOL16D = 0x13,
+ ORI32 = 0x14,
+ POOL32F = 0x15,
+ POOL32S = 0x16, /* MIPS64 */
+ DADDIU32 = 0x17, /* MIPS64 */
+
+ POOL32C = 0x18,
+ LWGP16 = 0x19,
+ LW16 = 0x1a,
+ POOL16E = 0x1b,
+ XORI32 = 0x1c,
+ JALS32 = 0x1d,
+ BOVC = 0x1d,
+ BEQC = 0x1d,
+ BEQZALC = 0x1d,
+ ADDIUPC = 0x1e,
+ PCREL = 0x1e,
+ BNVC = 0x1f,
+ BNEC = 0x1f,
+ BNEZALC = 0x1f,
+
+ R6_BEQZC = 0x20,
+ JIC = 0x20,
+ POOL16F = 0x21,
+ SB16 = 0x22,
+ BEQZ16 = 0x23,
+ BEQZC16 = 0x23,
+ SLTI32 = 0x24,
+ BEQ32 = 0x25,
+ BC = 0x25,
+ SWC132 = 0x26,
+ LWC132 = 0x27,
+
+ /* 0x29 is reserved */
+ RES_29 = 0x29,
+ R6_BNEZC = 0x28,
+ JIALC = 0x28,
+ SH16 = 0x2a,
+ BNEZ16 = 0x2b,
+ BNEZC16 = 0x2b,
+ SLTIU32 = 0x2c,
+ BNE32 = 0x2d,
+ BALC = 0x2d,
+ SDC132 = 0x2e,
+ LDC132 = 0x2f,
+
+ /* 0x31 is reserved */
+ RES_31 = 0x31,
+ BLEZALC = 0x30,
+ BGEZALC = 0x30,
+ BGEUC = 0x30,
+ SWSP16 = 0x32,
+ B16 = 0x33,
+ BC16 = 0x33,
+ ANDI32 = 0x34,
+ J32 = 0x35,
+ BGTZC = 0x35,
+ BLTZC = 0x35,
+ BLTC = 0x35,
+ SD32 = 0x36, /* MIPS64 */
+ LD32 = 0x37, /* MIPS64 */
+
+ /* 0x39 is reserved */
+ RES_39 = 0x39,
+ BGTZALC = 0x38,
+ BLTZALC = 0x38,
+ BLTUC = 0x38,
+ SW16 = 0x3a,
+ LI16 = 0x3b,
+ JALX32 = 0x3c,
+ JAL32 = 0x3d,
+ BLEZC = 0x3d,
+ BGEZC = 0x3d,
+ BGEC = 0x3d,
+ SW32 = 0x3e,
+ LW32 = 0x3f
+};
+
+/* PCREL Instructions perform PC-Relative address calculation. bits 20..16 */
+enum {
+ ADDIUPC_00 = 0x00,
+ ADDIUPC_01 = 0x01,
+ ADDIUPC_02 = 0x02,
+ ADDIUPC_03 = 0x03,
+ ADDIUPC_04 = 0x04,
+ ADDIUPC_05 = 0x05,
+ ADDIUPC_06 = 0x06,
+ ADDIUPC_07 = 0x07,
+ AUIPC = 0x1e,
+ ALUIPC = 0x1f,
+ LWPC_08 = 0x08,
+ LWPC_09 = 0x09,
+ LWPC_0A = 0x0A,
+ LWPC_0B = 0x0B,
+ LWPC_0C = 0x0C,
+ LWPC_0D = 0x0D,
+ LWPC_0E = 0x0E,
+ LWPC_0F = 0x0F,
+};
+
+/* POOL32A encoding of minor opcode field */
+
+enum {
+ /*
+ * These opcodes are distinguished only by bits 9..6; those bits are
+ * what are recorded below.
+ */
+ SLL32 = 0x0,
+ SRL32 = 0x1,
+ SRA = 0x2,
+ ROTR = 0x3,
+ SELEQZ = 0x5,
+ SELNEZ = 0x6,
+ R6_RDHWR = 0x7,
+
+ SLLV = 0x0,
+ SRLV = 0x1,
+ SRAV = 0x2,
+ ROTRV = 0x3,
+ ADD = 0x4,
+ ADDU32 = 0x5,
+ SUB = 0x6,
+ SUBU32 = 0x7,
+ MUL = 0x8,
+ AND = 0x9,
+ OR32 = 0xa,
+ NOR = 0xb,
+ XOR32 = 0xc,
+ SLT = 0xd,
+ SLTU = 0xe,
+
+ MOVN = 0x0,
+ R6_MUL = 0x0,
+ MOVZ = 0x1,
+ MUH = 0x1,
+ MULU = 0x2,
+ MUHU = 0x3,
+ LWXS = 0x4,
+ R6_DIV = 0x4,
+ MOD = 0x5,
+ R6_DIVU = 0x6,
+ MODU = 0x7,
+
+ /* The following can be distinguished by their lower 6 bits. */
+ BREAK32 = 0x07,
+ INS = 0x0c,
+ LSA = 0x0f,
+ ALIGN = 0x1f,
+ EXT = 0x2c,
+ POOL32AXF = 0x3c,
+ SIGRIE = 0x3f
+};
+
+/* POOL32AXF encoding of minor opcode field extension */
+
+/*
+ * 1. MIPS Architecture for Programmers Volume II-B:
+ * The microMIPS32 Instruction Set (Revision 3.05)
+ *
+ * Table 6.5 POOL32Axf Encoding of Minor Opcode Extension Field
+ *
+ * 2. MIPS Architecture for Programmers VolumeIV-e:
+ * The MIPS DSP Application-Specific Extension
+ * to the microMIPS32 Architecture (Revision 2.34)
+ *
+ * Table 5.5 POOL32Axf Encoding of Minor Opcode Extension Field
+ */
+
+enum {
+ /* bits 11..6 */
+ TEQ = 0x00,
+ TGE = 0x08,
+ TGEU = 0x10,
+ TLT = 0x20,
+ TLTU = 0x28,
+ TNE = 0x30,
+
+ MFC0 = 0x03,
+ MTC0 = 0x0b,
+
+ /* begin of microMIPS32 DSP */
+
+ /* bits 13..12 for 0x01 */
+ MFHI_ACC = 0x0,
+ MFLO_ACC = 0x1,
+ MTHI_ACC = 0x2,
+ MTLO_ACC = 0x3,
+
+ /* bits 13..12 for 0x2a */
+ MADD_ACC = 0x0,
+ MADDU_ACC = 0x1,
+ MSUB_ACC = 0x2,
+ MSUBU_ACC = 0x3,
+
+ /* bits 13..12 for 0x32 */
+ MULT_ACC = 0x0,
+ MULTU_ACC = 0x1,
+
+ /* end of microMIPS32 DSP */
+
+ /* bits 15..12 for 0x2c */
+ BITSWAP = 0x0,
+ SEB = 0x2,
+ SEH = 0x3,
+ CLO = 0x4,
+ CLZ = 0x5,
+ RDHWR = 0x6,
+ WSBH = 0x7,
+ MULT = 0x8,
+ MULTU = 0x9,
+ DIV = 0xa,
+ DIVU = 0xb,
+ MADD = 0xc,
+ MADDU = 0xd,
+ MSUB = 0xe,
+ MSUBU = 0xf,
+
+ /* bits 15..12 for 0x34 */
+ MFC2 = 0x4,
+ MTC2 = 0x5,
+ MFHC2 = 0x8,
+ MTHC2 = 0x9,
+ CFC2 = 0xc,
+ CTC2 = 0xd,
+
+ /* bits 15..12 for 0x3c */
+ JALR = 0x0,
+ JR = 0x0, /* alias */
+ JALRC = 0x0,
+ JRC = 0x0,
+ JALR_HB = 0x1,
+ JALRC_HB = 0x1,
+ JALRS = 0x4,
+ JALRS_HB = 0x5,
+
+ /* bits 15..12 for 0x05 */
+ RDPGPR = 0xe,
+ WRPGPR = 0xf,
+
+ /* bits 15..12 for 0x0d */
+ TLBP = 0x0,
+ TLBR = 0x1,
+ TLBWI = 0x2,
+ TLBWR = 0x3,
+ TLBINV = 0x4,
+ TLBINVF = 0x5,
+ WAIT = 0x9,
+ IRET = 0xd,
+ DERET = 0xe,
+ ERET = 0xf,
+
+ /* bits 15..12 for 0x15 */
+ DMT = 0x0,
+ DVPE = 0x1,
+ EMT = 0x2,
+ EVPE = 0x3,
+
+ /* bits 15..12 for 0x1d */
+ DI = 0x4,
+ EI = 0x5,
+
+ /* bits 15..12 for 0x2d */
+ SYNC = 0x6,
+ SYSCALL = 0x8,
+ SDBBP = 0xd,
+
+ /* bits 15..12 for 0x35 */
+ MFHI32 = 0x0,
+ MFLO32 = 0x1,
+ MTHI32 = 0x2,
+ MTLO32 = 0x3,
+};
+
+/* POOL32B encoding of minor opcode field (bits 15..12) */
+
+enum {
+ LWC2 = 0x0,
+ LWP = 0x1,
+ LDP = 0x4,
+ LWM32 = 0x5,
+ CACHE = 0x6,
+ LDM = 0x7,
+ SWC2 = 0x8,
+ SWP = 0x9,
+ SDP = 0xc,
+ SWM32 = 0xd,
+ SDM = 0xf
+};
+
+/* POOL32C encoding of minor opcode field (bits 15..12) */
+
+enum {
+ LWL = 0x0,
+ SWL = 0x8,
+ LWR = 0x1,
+ SWR = 0x9,
+ PREF = 0x2,
+ ST_EVA = 0xa,
+ LL = 0x3,
+ SC = 0xb,
+ LDL = 0x4,
+ SDL = 0xc,
+ LDR = 0x5,
+ SDR = 0xd,
+ LD_EVA = 0x6,
+ LWU = 0xe,
+ LLD = 0x7,
+ SCD = 0xf
+};
+
+/* POOL32C LD-EVA encoding of minor opcode field (bits 11..9) */
+
+enum {
+ LBUE = 0x0,
+ LHUE = 0x1,
+ LWLE = 0x2,
+ LWRE = 0x3,
+ LBE = 0x4,
+ LHE = 0x5,
+ LLE = 0x6,
+ LWE = 0x7,
+};
+
+/* POOL32C ST-EVA encoding of minor opcode field (bits 11..9) */
+
+enum {
+ SWLE = 0x0,
+ SWRE = 0x1,
+ PREFE = 0x2,
+ CACHEE = 0x3,
+ SBE = 0x4,
+ SHE = 0x5,
+ SCE = 0x6,
+ SWE = 0x7,
+};
+
+/* POOL32F encoding of minor opcode field (bits 5..0) */
+
+enum {
+ /* These are the bit 7..6 values */
+ ADD_FMT = 0x0,
+
+ SUB_FMT = 0x1,
+
+ MUL_FMT = 0x2,
+
+ DIV_FMT = 0x3,
+
+ /* These are the bit 8..6 values */
+ MOVN_FMT = 0x0,
+ RSQRT2_FMT = 0x0,
+ MOVF_FMT = 0x0,
+ RINT_FMT = 0x0,
+ SELNEZ_FMT = 0x0,
+
+ MOVZ_FMT = 0x1,
+ LWXC1 = 0x1,
+ MOVT_FMT = 0x1,
+ CLASS_FMT = 0x1,
+ SELEQZ_FMT = 0x1,
+
+ PLL_PS = 0x2,
+ SWXC1 = 0x2,
+ SEL_FMT = 0x2,
+
+ PLU_PS = 0x3,
+ LDXC1 = 0x3,
+
+ MOVN_FMT_04 = 0x4,
+ PUL_PS = 0x4,
+ SDXC1 = 0x4,
+ RECIP2_FMT = 0x4,
+
+ MOVZ_FMT_05 = 0x05,
+ PUU_PS = 0x5,
+ LUXC1 = 0x5,
+
+ CVT_PS_S = 0x6,
+ SUXC1 = 0x6,
+ ADDR_PS = 0x6,
+ PREFX = 0x6,
+ MADDF_FMT = 0x6,
+
+ MULR_PS = 0x7,
+ MSUBF_FMT = 0x7,
+
+ MADD_S = 0x01,
+ MADD_D = 0x09,
+ MADD_PS = 0x11,
+ ALNV_PS = 0x19,
+ MSUB_S = 0x21,
+ MSUB_D = 0x29,
+ MSUB_PS = 0x31,
+
+ NMADD_S = 0x02,
+ NMADD_D = 0x0a,
+ NMADD_PS = 0x12,
+ NMSUB_S = 0x22,
+ NMSUB_D = 0x2a,
+ NMSUB_PS = 0x32,
+
+ MIN_FMT = 0x3,
+ MAX_FMT = 0xb,
+ MINA_FMT = 0x23,
+ MAXA_FMT = 0x2b,
+ POOL32FXF = 0x3b,
+
+ CABS_COND_FMT = 0x1c, /* MIPS3D */
+ C_COND_FMT = 0x3c,
+
+ CMP_CONDN_S = 0x5,
+ CMP_CONDN_D = 0x15
+};
+
+/* POOL32Fxf encoding of minor opcode extension field */
+
+enum {
+ CVT_L = 0x04,
+ RSQRT_FMT = 0x08,
+ FLOOR_L = 0x0c,
+ CVT_PW_PS = 0x1c,
+ CVT_W = 0x24,
+ SQRT_FMT = 0x28,
+ FLOOR_W = 0x2c,
+ CVT_PS_PW = 0x3c,
+ CFC1 = 0x40,
+ RECIP_FMT = 0x48,
+ CEIL_L = 0x4c,
+ CTC1 = 0x60,
+ CEIL_W = 0x6c,
+ MFC1 = 0x80,
+ CVT_S_PL = 0x84,
+ TRUNC_L = 0x8c,
+ MTC1 = 0xa0,
+ CVT_S_PU = 0xa4,
+ TRUNC_W = 0xac,
+ MFHC1 = 0xc0,
+ ROUND_L = 0xcc,
+ MTHC1 = 0xe0,
+ ROUND_W = 0xec,
+
+ MOV_FMT = 0x01,
+ MOVF = 0x05,
+ ABS_FMT = 0x0d,
+ RSQRT1_FMT = 0x1d,
+ MOVT = 0x25,
+ NEG_FMT = 0x2d,
+ CVT_D = 0x4d,
+ RECIP1_FMT = 0x5d,
+ CVT_S = 0x6d
+};
+
+/* POOL32I encoding of minor opcode field (bits 25..21) */
+
+enum {
+ BLTZ = 0x00,
+ BLTZAL = 0x01,
+ BGEZ = 0x02,
+ BGEZAL = 0x03,
+ BLEZ = 0x04,
+ BNEZC = 0x05,
+ BGTZ = 0x06,
+ BEQZC = 0x07,
+ TLTI = 0x08,
+ BC1EQZC = 0x08,
+ TGEI = 0x09,
+ BC1NEZC = 0x09,
+ TLTIU = 0x0a,
+ BC2EQZC = 0x0a,
+ TGEIU = 0x0b,
+ BC2NEZC = 0x0a,
+ TNEI = 0x0c,
+ R6_SYNCI = 0x0c,
+ LUI = 0x0d,
+ TEQI = 0x0e,
+ SYNCI = 0x10,
+ BLTZALS = 0x11,
+ BGEZALS = 0x13,
+ BC2F = 0x14,
+ BC2T = 0x15,
+ /* These overlap and are distinguished by bit16 of the instruction */
+ BC1F = 0x1c,
+ BC1T = 0x1d,
+ BC1ANY2F = 0x1c,
+ BC1ANY2T = 0x1d,
+ BC1ANY4F = 0x1e,
+ BC1ANY4T = 0x1f
+};
+
+/* POOL16A encoding of minor opcode field */
+
+enum {
+ ADDU16 = 0x0,
+ SUBU16 = 0x1
+};
+
+/* POOL16B encoding of minor opcode field */
+
+enum {
+ SLL16 = 0x0,
+ SRL16 = 0x1
+};
+
+/* POOL16C encoding of minor opcode field */
+
+enum {
+ NOT16 = 0x00,
+ XOR16 = 0x04,
+ AND16 = 0x08,
+ OR16 = 0x0c,
+ LWM16 = 0x10,
+ SWM16 = 0x14,
+ JR16 = 0x18,
+ JRC16 = 0x1a,
+ JALR16 = 0x1c,
+ JALR16S = 0x1e,
+ MFHI16 = 0x20,
+ MFLO16 = 0x24,
+ BREAK16 = 0x28,
+ SDBBP16 = 0x2c,
+ JRADDIUSP = 0x30
+};
+
+/* R6 POOL16C encoding of minor opcode field (bits 0..5) */
+
+enum {
+ R6_NOT16 = 0x00,
+ R6_AND16 = 0x01,
+ R6_LWM16 = 0x02,
+ R6_JRC16 = 0x03,
+ MOVEP = 0x04,
+ MOVEP_05 = 0x05,
+ MOVEP_06 = 0x06,
+ MOVEP_07 = 0x07,
+ R6_XOR16 = 0x08,
+ R6_OR16 = 0x09,
+ R6_SWM16 = 0x0a,
+ JALRC16 = 0x0b,
+ MOVEP_0C = 0x0c,
+ MOVEP_0D = 0x0d,
+ MOVEP_0E = 0x0e,
+ MOVEP_0F = 0x0f,
+ JRCADDIUSP = 0x13,
+ R6_BREAK16 = 0x1b,
+ R6_SDBBP16 = 0x3b
+};
+
+/* POOL16D encoding of minor opcode field */
+
+enum {
+ ADDIUS5 = 0x0,
+ ADDIUSP = 0x1
+};
+
+/* POOL16E encoding of minor opcode field */
+
+enum {
+ ADDIUR2 = 0x0,
+ ADDIUR1SP = 0x1
+};
+
+static int mmreg(int r)
+{
+ static const int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
+
+ return map[r];
+}
+
+/* Used for 16-bit store instructions. */
+static int mmreg2(int r)
+{
+ static const int map[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
+
+ return map[r];
+}
+
+#define uMIPS_RD(op) ((op >> 7) & 0x7)
+#define uMIPS_RS(op) ((op >> 4) & 0x7)
+#define uMIPS_RS2(op) uMIPS_RS(op)
+#define uMIPS_RS1(op) ((op >> 1) & 0x7)
+#define uMIPS_RD5(op) ((op >> 5) & 0x1f)
+#define uMIPS_RS5(op) (op & 0x1f)
+
+/* Signed immediate */
+#define SIMM(op, start, width) \
+ ((int32_t)(((op >> start) & ((~0U) >> (32 - width))) \
+ << (32 - width)) \
+ >> (32 - width))
+/* Zero-extended immediate */
+#define ZIMM(op, start, width) ((op >> start) & ((~0U) >> (32 - width)))
+
+static void gen_addiur1sp(DisasContext *ctx)
+{
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+
+ gen_arith_imm(ctx, OPC_ADDIU, rd, 29, ((ctx->opcode >> 1) & 0x3f) << 2);
+}
+
+static void gen_addiur2(DisasContext *ctx)
+{
+ static const int decoded_imm[] = { 1, 4, 8, 12, 16, 20, 24, -1 };
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rs = mmreg(uMIPS_RS(ctx->opcode));
+
+ gen_arith_imm(ctx, OPC_ADDIU, rd, rs, decoded_imm[ZIMM(ctx->opcode, 1, 3)]);
+}
+
+static void gen_addiusp(DisasContext *ctx)
+{
+ int encoded = ZIMM(ctx->opcode, 1, 9);
+ int decoded;
+
+ if (encoded <= 1) {
+ decoded = 256 + encoded;
+ } else if (encoded <= 255) {
+ decoded = encoded;
+ } else if (encoded <= 509) {
+ decoded = encoded - 512;
+ } else {
+ decoded = encoded - 768;
+ }
+
+ gen_arith_imm(ctx, OPC_ADDIU, 29, 29, decoded << 2);
+}
+
+static void gen_addius5(DisasContext *ctx)
+{
+ int imm = SIMM(ctx->opcode, 1, 4);
+ int rd = (ctx->opcode >> 5) & 0x1f;
+
+ gen_arith_imm(ctx, OPC_ADDIU, rd, rd, imm);
+}
+
+static void gen_andi16(DisasContext *ctx)
+{
+ static const int decoded_imm[] = { 128, 1, 2, 3, 4, 7, 8, 15, 16,
+ 31, 32, 63, 64, 255, 32768, 65535 };
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rs = mmreg(uMIPS_RS(ctx->opcode));
+ int encoded = ZIMM(ctx->opcode, 0, 4);
+
+ gen_logic_imm(ctx, OPC_ANDI, rd, rs, decoded_imm[encoded]);
+}
+
+static void gen_ldst_multiple(DisasContext *ctx, uint32_t opc, int reglist,
+ int base, int16_t offset)
+{
+ TCGv t0, t1;
+ TCGv_i32 t2;
+
+ if (ctx->hflags & MIPS_HFLAG_BMASK) {
+ gen_reserved_instruction(ctx);
+ return;
+ }
+
+ t0 = tcg_temp_new();
+
+ gen_base_offset_addr(ctx, t0, base, offset);
+
+ t1 = tcg_const_tl(reglist);
+ t2 = tcg_const_i32(ctx->mem_idx);
+
+ save_cpu_state(ctx, 1);
+ switch (opc) {
+ case LWM32:
+ gen_helper_lwm(cpu_env, t0, t1, t2);
+ break;
+ case SWM32:
+ gen_helper_swm(cpu_env, t0, t1, t2);
+ break;
+#ifdef TARGET_MIPS64
+ case LDM:
+ gen_helper_ldm(cpu_env, t0, t1, t2);
+ break;
+ case SDM:
+ gen_helper_sdm(cpu_env, t0, t1, t2);
+ break;
+#endif
+ }
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+ tcg_temp_free_i32(t2);
+}
+
+
+static void gen_pool16c_insn(DisasContext *ctx)
+{
+ int rd = mmreg((ctx->opcode >> 3) & 0x7);
+ int rs = mmreg(ctx->opcode & 0x7);
+
+ switch (((ctx->opcode) >> 4) & 0x3f) {
+ case NOT16 + 0:
+ case NOT16 + 1:
+ case NOT16 + 2:
+ case NOT16 + 3:
+ gen_logic(ctx, OPC_NOR, rd, rs, 0);
+ break;
+ case XOR16 + 0:
+ case XOR16 + 1:
+ case XOR16 + 2:
+ case XOR16 + 3:
+ gen_logic(ctx, OPC_XOR, rd, rd, rs);
+ break;
+ case AND16 + 0:
+ case AND16 + 1:
+ case AND16 + 2:
+ case AND16 + 3:
+ gen_logic(ctx, OPC_AND, rd, rd, rs);
+ break;
+ case OR16 + 0:
+ case OR16 + 1:
+ case OR16 + 2:
+ case OR16 + 3:
+ gen_logic(ctx, OPC_OR, rd, rd, rs);
+ break;
+ case LWM16 + 0:
+ case LWM16 + 1:
+ case LWM16 + 2:
+ case LWM16 + 3:
+ {
+ static const int lwm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
+ int offset = ZIMM(ctx->opcode, 0, 4);
+
+ gen_ldst_multiple(ctx, LWM32, lwm_convert[(ctx->opcode >> 4) & 0x3],
+ 29, offset << 2);
+ }
+ break;
+ case SWM16 + 0:
+ case SWM16 + 1:
+ case SWM16 + 2:
+ case SWM16 + 3:
+ {
+ static const int swm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
+ int offset = ZIMM(ctx->opcode, 0, 4);
+
+ gen_ldst_multiple(ctx, SWM32, swm_convert[(ctx->opcode >> 4) & 0x3],
+ 29, offset << 2);
+ }
+ break;
+ case JR16 + 0:
+ case JR16 + 1:
+ {
+ int reg = ctx->opcode & 0x1f;
+
+ gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0, 4);
+ }
+ break;
+ case JRC16 + 0:
+ case JRC16 + 1:
+ {
+ int reg = ctx->opcode & 0x1f;
+ gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0, 0);
+ /*
+ * Let normal delay slot handling in our caller take us
+ * to the branch target.
+ */
+ }
+ break;
+ case JALR16 + 0:
+ case JALR16 + 1:
+ gen_compute_branch(ctx, OPC_JALR, 2, ctx->opcode & 0x1f, 31, 0, 4);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ case JALR16S + 0:
+ case JALR16S + 1:
+ gen_compute_branch(ctx, OPC_JALR, 2, ctx->opcode & 0x1f, 31, 0, 2);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ case MFHI16 + 0:
+ case MFHI16 + 1:
+ gen_HILO(ctx, OPC_MFHI, 0, uMIPS_RS5(ctx->opcode));
+ break;
+ case MFLO16 + 0:
+ case MFLO16 + 1:
+ gen_HILO(ctx, OPC_MFLO, 0, uMIPS_RS5(ctx->opcode));
+ break;
+ case BREAK16:
+ generate_exception_end(ctx, EXCP_BREAK);
+ break;
+ case SDBBP16:
+ if (is_uhi(extract32(ctx->opcode, 0, 4))) {
+ gen_helper_do_semihosting(cpu_env);
+ } else {
+ /*
+ * XXX: not clear which exception should be raised
+ * when in debug mode...
+ */
+ check_insn(ctx, ISA_MIPS_R1);
+ generate_exception_end(ctx, EXCP_DBp);
+ }
+ break;
+ case JRADDIUSP + 0:
+ case JRADDIUSP + 1:
+ {
+ int imm = ZIMM(ctx->opcode, 0, 5);
+ gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0, 0);
+ gen_arith_imm(ctx, OPC_ADDIU, 29, 29, imm << 2);
+ /*
+ * Let normal delay slot handling in our caller take us
+ * to the branch target.
+ */
+ }
+ break;
+ default:
+ gen_reserved_instruction(ctx);
+ break;
+ }
+}
+
+static inline void gen_movep(DisasContext *ctx, int enc_dest, int enc_rt,
+ int enc_rs)
+{
+ int rd, re;
+ static const int rd_enc[] = { 5, 5, 6, 4, 4, 4, 4, 4 };
+ static const int re_enc[] = { 6, 7, 7, 21, 22, 5, 6, 7 };
+ static const int rs_rt_enc[] = { 0, 17, 2, 3, 16, 18, 19, 20 };
+
+ rd = rd_enc[enc_dest];
+ re = re_enc[enc_dest];
+ gen_load_gpr(cpu_gpr[rd], rs_rt_enc[enc_rs]);
+ gen_load_gpr(cpu_gpr[re], rs_rt_enc[enc_rt]);
+}
+
+static void gen_pool16c_r6_insn(DisasContext *ctx)
+{
+ int rt = mmreg((ctx->opcode >> 7) & 0x7);
+ int rs = mmreg((ctx->opcode >> 4) & 0x7);
+
+ switch (ctx->opcode & 0xf) {
+ case R6_NOT16:
+ gen_logic(ctx, OPC_NOR, rt, rs, 0);
+ break;
+ case R6_AND16:
+ gen_logic(ctx, OPC_AND, rt, rt, rs);
+ break;
+ case R6_LWM16:
+ {
+ int lwm_converted = 0x11 + extract32(ctx->opcode, 8, 2);
+ int offset = extract32(ctx->opcode, 4, 4);
+ gen_ldst_multiple(ctx, LWM32, lwm_converted, 29, offset << 2);
+ }
+ break;
+ case R6_JRC16: /* JRCADDIUSP */
+ if ((ctx->opcode >> 4) & 1) {
+ /* JRCADDIUSP */
+ int imm = extract32(ctx->opcode, 5, 5);
+ gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0, 0);
+ gen_arith_imm(ctx, OPC_ADDIU, 29, 29, imm << 2);
+ } else {
+ /* JRC16 */
+ rs = extract32(ctx->opcode, 5, 5);
+ gen_compute_branch(ctx, OPC_JR, 2, rs, 0, 0, 0);
+ }
+ break;
+ case MOVEP:
+ case MOVEP_05:
+ case MOVEP_06:
+ case MOVEP_07:
+ case MOVEP_0C:
+ case MOVEP_0D:
+ case MOVEP_0E:
+ case MOVEP_0F:
+ {
+ int enc_dest = uMIPS_RD(ctx->opcode);
+ int enc_rt = uMIPS_RS2(ctx->opcode);
+ int enc_rs = (ctx->opcode & 3) | ((ctx->opcode >> 1) & 4);
+ gen_movep(ctx, enc_dest, enc_rt, enc_rs);
+ }
+ break;
+ case R6_XOR16:
+ gen_logic(ctx, OPC_XOR, rt, rt, rs);
+ break;
+ case R6_OR16:
+ gen_logic(ctx, OPC_OR, rt, rt, rs);
+ break;
+ case R6_SWM16:
+ {
+ int swm_converted = 0x11 + extract32(ctx->opcode, 8, 2);
+ int offset = extract32(ctx->opcode, 4, 4);
+ gen_ldst_multiple(ctx, SWM32, swm_converted, 29, offset << 2);
+ }
+ break;
+ case JALRC16: /* BREAK16, SDBBP16 */
+ switch (ctx->opcode & 0x3f) {
+ case JALRC16:
+ case JALRC16 + 0x20:
+ /* JALRC16 */
+ gen_compute_branch(ctx, OPC_JALR, 2, (ctx->opcode >> 5) & 0x1f,
+ 31, 0, 0);
+ break;
+ case R6_BREAK16:
+ /* BREAK16 */
+ generate_exception(ctx, EXCP_BREAK);
+ break;
+ case R6_SDBBP16:
+ /* SDBBP16 */
+ if (is_uhi(extract32(ctx->opcode, 6, 4))) {
+ gen_helper_do_semihosting(cpu_env);
+ } else {
+ if (ctx->hflags & MIPS_HFLAG_SBRI) {
+ generate_exception(ctx, EXCP_RI);
+ } else {
+ generate_exception(ctx, EXCP_DBp);
+ }
+ }
+ break;
+ }
+ break;
+ default:
+ generate_exception(ctx, EXCP_RI);
+ break;
+ }
+}
+
+static void gen_ldst_pair(DisasContext *ctx, uint32_t opc, int rd,
+ int base, int16_t offset)
+{
+ TCGv t0, t1;
+
+ if (ctx->hflags & MIPS_HFLAG_BMASK || rd == 31) {
+ gen_reserved_instruction(ctx);
+ return;
+ }
+
+ t0 = tcg_temp_new();
+ t1 = tcg_temp_new();
+
+ gen_base_offset_addr(ctx, t0, base, offset);
+
+ switch (opc) {
+ case LWP:
+ if (rd == base) {
+ gen_reserved_instruction(ctx);
+ return;
+ }
+ tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
+ gen_store_gpr(t1, rd);
+ tcg_gen_movi_tl(t1, 4);
+ gen_op_addr_add(ctx, t0, t0, t1);
+ tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
+ gen_store_gpr(t1, rd + 1);
+ break;
+ case SWP:
+ gen_load_gpr(t1, rd);
+ tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
+ tcg_gen_movi_tl(t1, 4);
+ gen_op_addr_add(ctx, t0, t0, t1);
+ gen_load_gpr(t1, rd + 1);
+ tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
+ break;
+#ifdef TARGET_MIPS64
+ case LDP:
+ if (rd == base) {
+ gen_reserved_instruction(ctx);
+ return;
+ }
+ tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TEQ);
+ gen_store_gpr(t1, rd);
+ tcg_gen_movi_tl(t1, 8);
+ gen_op_addr_add(ctx, t0, t0, t1);
+ tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TEQ);
+ gen_store_gpr(t1, rd + 1);
+ break;
+ case SDP:
+ gen_load_gpr(t1, rd);
+ tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ);
+ tcg_gen_movi_tl(t1, 8);
+ gen_op_addr_add(ctx, t0, t0, t1);
+ gen_load_gpr(t1, rd + 1);
+ tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ);
+ break;
+#endif
+ }
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+}
+
+static void gen_pool32axf(CPUMIPSState *env, DisasContext *ctx, int rt, int rs)
+{
+ int extension = (ctx->opcode >> 6) & 0x3f;
+ int minor = (ctx->opcode >> 12) & 0xf;
+ uint32_t mips32_op;
+
+ switch (extension) {
+ case TEQ:
+ mips32_op = OPC_TEQ;
+ goto do_trap;
+ case TGE:
+ mips32_op = OPC_TGE;
+ goto do_trap;
+ case TGEU:
+ mips32_op = OPC_TGEU;
+ goto do_trap;
+ case TLT:
+ mips32_op = OPC_TLT;
+ goto do_trap;
+ case TLTU:
+ mips32_op = OPC_TLTU;
+ goto do_trap;
+ case TNE:
+ mips32_op = OPC_TNE;
+ do_trap:
+ gen_trap(ctx, mips32_op, rs, rt, -1);
+ break;
+#ifndef CONFIG_USER_ONLY
+ case MFC0:
+ case MFC0 + 32:
+ check_cp0_enabled(ctx);
+ if (rt == 0) {
+ /* Treat as NOP. */
+ break;
+ }
+ gen_mfc0(ctx, cpu_gpr[rt], rs, (ctx->opcode >> 11) & 0x7);
+ break;
+ case MTC0:
+ case MTC0 + 32:
+ check_cp0_enabled(ctx);
+ {
+ TCGv t0 = tcg_temp_new();
+
+ gen_load_gpr(t0, rt);
+ gen_mtc0(ctx, t0, rs, (ctx->opcode >> 11) & 0x7);
+ tcg_temp_free(t0);
+ }
+ break;
+#endif
+ case 0x2a:
+ switch (minor & 3) {
+ case MADD_ACC:
+ gen_muldiv(ctx, OPC_MADD, (ctx->opcode >> 14) & 3, rs, rt);
+ break;
+ case MADDU_ACC:
+ gen_muldiv(ctx, OPC_MADDU, (ctx->opcode >> 14) & 3, rs, rt);
+ break;
+ case MSUB_ACC:
+ gen_muldiv(ctx, OPC_MSUB, (ctx->opcode >> 14) & 3, rs, rt);
+ break;
+ case MSUBU_ACC:
+ gen_muldiv(ctx, OPC_MSUBU, (ctx->opcode >> 14) & 3, rs, rt);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x32:
+ switch (minor & 3) {
+ case MULT_ACC:
+ gen_muldiv(ctx, OPC_MULT, (ctx->opcode >> 14) & 3, rs, rt);
+ break;
+ case MULTU_ACC:
+ gen_muldiv(ctx, OPC_MULTU, (ctx->opcode >> 14) & 3, rs, rt);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x2c:
+ switch (minor) {
+ case BITSWAP:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_bitswap(ctx, OPC_BITSWAP, rs, rt);
+ break;
+ case SEB:
+ gen_bshfl(ctx, OPC_SEB, rs, rt);
+ break;
+ case SEH:
+ gen_bshfl(ctx, OPC_SEH, rs, rt);
+ break;
+ case CLO:
+ mips32_op = OPC_CLO;
+ goto do_cl;
+ case CLZ:
+ mips32_op = OPC_CLZ;
+ do_cl:
+ check_insn(ctx, ISA_MIPS_R1);
+ gen_cl(ctx, mips32_op, rt, rs);
+ break;
+ case RDHWR:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_rdhwr(ctx, rt, rs, 0);
+ break;
+ case WSBH:
+ gen_bshfl(ctx, OPC_WSBH, rs, rt);
+ break;
+ case MULT:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MULT;
+ goto do_mul;
+ case MULTU:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MULTU;
+ goto do_mul;
+ case DIV:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_DIV;
+ goto do_div;
+ case DIVU:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_DIVU;
+ goto do_div;
+ do_div:
+ check_insn(ctx, ISA_MIPS_R1);
+ gen_muldiv(ctx, mips32_op, 0, rs, rt);
+ break;
+ case MADD:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MADD;
+ goto do_mul;
+ case MADDU:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MADDU;
+ goto do_mul;
+ case MSUB:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MSUB;
+ goto do_mul;
+ case MSUBU:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MSUBU;
+ do_mul:
+ check_insn(ctx, ISA_MIPS_R1);
+ gen_muldiv(ctx, mips32_op, 0, rs, rt);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x34:
+ switch (minor) {
+ case MFC2:
+ case MTC2:
+ case MFHC2:
+ case MTHC2:
+ case CFC2:
+ case CTC2:
+ generate_exception_err(ctx, EXCP_CpU, 2);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x3c:
+ switch (minor) {
+ case JALR: /* JALRC */
+ case JALR_HB: /* JALRC_HB */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* JALRC, JALRC_HB */
+ gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 0);
+ } else {
+ /* JALR, JALR_HB */
+ gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 4);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ }
+ break;
+ case JALRS:
+ case JALRS_HB:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 2);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x05:
+ switch (minor) {
+ case RDPGPR:
+ check_cp0_enabled(ctx);
+ check_insn(ctx, ISA_MIPS_R2);
+ gen_load_srsgpr(rs, rt);
+ break;
+ case WRPGPR:
+ check_cp0_enabled(ctx);
+ check_insn(ctx, ISA_MIPS_R2);
+ gen_store_srsgpr(rs, rt);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+#ifndef CONFIG_USER_ONLY
+ case 0x0d:
+ switch (minor) {
+ case TLBP:
+ mips32_op = OPC_TLBP;
+ goto do_cp0;
+ case TLBR:
+ mips32_op = OPC_TLBR;
+ goto do_cp0;
+ case TLBWI:
+ mips32_op = OPC_TLBWI;
+ goto do_cp0;
+ case TLBWR:
+ mips32_op = OPC_TLBWR;
+ goto do_cp0;
+ case TLBINV:
+ mips32_op = OPC_TLBINV;
+ goto do_cp0;
+ case TLBINVF:
+ mips32_op = OPC_TLBINVF;
+ goto do_cp0;
+ case WAIT:
+ mips32_op = OPC_WAIT;
+ goto do_cp0;
+ case DERET:
+ mips32_op = OPC_DERET;
+ goto do_cp0;
+ case ERET:
+ mips32_op = OPC_ERET;
+ do_cp0:
+ gen_cp0(env, ctx, mips32_op, rt, rs);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x1d:
+ switch (minor) {
+ case DI:
+ check_cp0_enabled(ctx);
+ {
+ TCGv t0 = tcg_temp_new();
+
+ save_cpu_state(ctx, 1);
+ gen_helper_di(t0, cpu_env);
+ gen_store_gpr(t0, rs);
+ /*
+ * Stop translation as we may have switched the execution
+ * mode.
+ */
+ ctx->base.is_jmp = DISAS_STOP;
+ tcg_temp_free(t0);
+ }
+ break;
+ case EI:
+ check_cp0_enabled(ctx);
+ {
+ TCGv t0 = tcg_temp_new();
+
+ save_cpu_state(ctx, 1);
+ gen_helper_ei(t0, cpu_env);
+ gen_store_gpr(t0, rs);
+ /*
+ * DISAS_STOP isn't sufficient, we need to ensure we break out
+ * of translated code to check for pending interrupts.
+ */
+ gen_save_pc(ctx->base.pc_next + 4);
+ ctx->base.is_jmp = DISAS_EXIT;
+ tcg_temp_free(t0);
+ }
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+#endif
+ case 0x2d:
+ switch (minor) {
+ case SYNC:
+ gen_sync(extract32(ctx->opcode, 16, 5));
+ break;
+ case SYSCALL:
+ generate_exception_end(ctx, EXCP_SYSCALL);
+ break;
+ case SDBBP:
+ if (is_uhi(extract32(ctx->opcode, 16, 10))) {
+ gen_helper_do_semihosting(cpu_env);
+ } else {
+ check_insn(ctx, ISA_MIPS_R1);
+ if (ctx->hflags & MIPS_HFLAG_SBRI) {
+ gen_reserved_instruction(ctx);
+ } else {
+ generate_exception_end(ctx, EXCP_DBp);
+ }
+ }
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x01:
+ switch (minor & 3) {
+ case MFHI_ACC:
+ gen_HILO(ctx, OPC_MFHI, minor >> 2, rs);
+ break;
+ case MFLO_ACC:
+ gen_HILO(ctx, OPC_MFLO, minor >> 2, rs);
+ break;
+ case MTHI_ACC:
+ gen_HILO(ctx, OPC_MTHI, minor >> 2, rs);
+ break;
+ case MTLO_ACC:
+ gen_HILO(ctx, OPC_MTLO, minor >> 2, rs);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ case 0x35:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ switch (minor) {
+ case MFHI32:
+ gen_HILO(ctx, OPC_MFHI, 0, rs);
+ break;
+ case MFLO32:
+ gen_HILO(ctx, OPC_MFLO, 0, rs);
+ break;
+ case MTHI32:
+ gen_HILO(ctx, OPC_MTHI, 0, rs);
+ break;
+ case MTLO32:
+ gen_HILO(ctx, OPC_MTLO, 0, rs);
+ break;
+ default:
+ goto pool32axf_invalid;
+ }
+ break;
+ default:
+ pool32axf_invalid:
+ MIPS_INVAL("pool32axf");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+}
+
+static void gen_pool32fxf(DisasContext *ctx, int rt, int rs)
+{
+ int extension = (ctx->opcode >> 6) & 0x3ff;
+ uint32_t mips32_op;
+
+#define FLOAT_1BIT_FMT(opc, fmt) ((fmt << 8) | opc)
+#define FLOAT_2BIT_FMT(opc, fmt) ((fmt << 7) | opc)
+#define COND_FLOAT_MOV(opc, cond) ((cond << 7) | opc)
+
+ switch (extension) {
+ case FLOAT_1BIT_FMT(CFC1, 0):
+ mips32_op = OPC_CFC1;
+ goto do_cp1;
+ case FLOAT_1BIT_FMT(CTC1, 0):
+ mips32_op = OPC_CTC1;
+ goto do_cp1;
+ case FLOAT_1BIT_FMT(MFC1, 0):
+ mips32_op = OPC_MFC1;
+ goto do_cp1;
+ case FLOAT_1BIT_FMT(MTC1, 0):
+ mips32_op = OPC_MTC1;
+ goto do_cp1;
+ case FLOAT_1BIT_FMT(MFHC1, 0):
+ mips32_op = OPC_MFHC1;
+ goto do_cp1;
+ case FLOAT_1BIT_FMT(MTHC1, 0):
+ mips32_op = OPC_MTHC1;
+ do_cp1:
+ gen_cp1(ctx, mips32_op, rt, rs);
+ break;
+
+ /* Reciprocal square root */
+ case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_S):
+ mips32_op = OPC_RSQRT_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_D):
+ mips32_op = OPC_RSQRT_D;
+ goto do_unaryfp;
+
+ /* Square root */
+ case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_S):
+ mips32_op = OPC_SQRT_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_D):
+ mips32_op = OPC_SQRT_D;
+ goto do_unaryfp;
+
+ /* Reciprocal */
+ case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_S):
+ mips32_op = OPC_RECIP_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_D):
+ mips32_op = OPC_RECIP_D;
+ goto do_unaryfp;
+
+ /* Floor */
+ case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_S):
+ mips32_op = OPC_FLOOR_L_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_D):
+ mips32_op = OPC_FLOOR_L_D;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_S):
+ mips32_op = OPC_FLOOR_W_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_D):
+ mips32_op = OPC_FLOOR_W_D;
+ goto do_unaryfp;
+
+ /* Ceiling */
+ case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_S):
+ mips32_op = OPC_CEIL_L_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_D):
+ mips32_op = OPC_CEIL_L_D;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_S):
+ mips32_op = OPC_CEIL_W_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_D):
+ mips32_op = OPC_CEIL_W_D;
+ goto do_unaryfp;
+
+ /* Truncation */
+ case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_S):
+ mips32_op = OPC_TRUNC_L_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_D):
+ mips32_op = OPC_TRUNC_L_D;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_S):
+ mips32_op = OPC_TRUNC_W_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_D):
+ mips32_op = OPC_TRUNC_W_D;
+ goto do_unaryfp;
+
+ /* Round */
+ case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_S):
+ mips32_op = OPC_ROUND_L_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_D):
+ mips32_op = OPC_ROUND_L_D;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_S):
+ mips32_op = OPC_ROUND_W_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_D):
+ mips32_op = OPC_ROUND_W_D;
+ goto do_unaryfp;
+
+ /* Integer to floating-point conversion */
+ case FLOAT_1BIT_FMT(CVT_L, FMT_SD_S):
+ mips32_op = OPC_CVT_L_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CVT_L, FMT_SD_D):
+ mips32_op = OPC_CVT_L_D;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CVT_W, FMT_SD_S):
+ mips32_op = OPC_CVT_W_S;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CVT_W, FMT_SD_D):
+ mips32_op = OPC_CVT_W_D;
+ goto do_unaryfp;
+
+ /* Paired-foo conversions */
+ case FLOAT_1BIT_FMT(CVT_S_PL, 0):
+ mips32_op = OPC_CVT_S_PL;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CVT_S_PU, 0):
+ mips32_op = OPC_CVT_S_PU;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CVT_PW_PS, 0):
+ mips32_op = OPC_CVT_PW_PS;
+ goto do_unaryfp;
+ case FLOAT_1BIT_FMT(CVT_PS_PW, 0):
+ mips32_op = OPC_CVT_PS_PW;
+ goto do_unaryfp;
+
+ /* Floating-point moves */
+ case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_S):
+ mips32_op = OPC_MOV_S;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_D):
+ mips32_op = OPC_MOV_D;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_PS):
+ mips32_op = OPC_MOV_PS;
+ goto do_unaryfp;
+
+ /* Absolute value */
+ case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_S):
+ mips32_op = OPC_ABS_S;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_D):
+ mips32_op = OPC_ABS_D;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_PS):
+ mips32_op = OPC_ABS_PS;
+ goto do_unaryfp;
+
+ /* Negation */
+ case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_S):
+ mips32_op = OPC_NEG_S;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_D):
+ mips32_op = OPC_NEG_D;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_PS):
+ mips32_op = OPC_NEG_PS;
+ goto do_unaryfp;
+
+ /* Reciprocal square root step */
+ case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_S):
+ mips32_op = OPC_RSQRT1_S;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_D):
+ mips32_op = OPC_RSQRT1_D;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_PS):
+ mips32_op = OPC_RSQRT1_PS;
+ goto do_unaryfp;
+
+ /* Reciprocal step */
+ case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_S):
+ mips32_op = OPC_RECIP1_S;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_D):
+ mips32_op = OPC_RECIP1_S;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_PS):
+ mips32_op = OPC_RECIP1_PS;
+ goto do_unaryfp;
+
+ /* Conversions from double */
+ case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_S):
+ mips32_op = OPC_CVT_D_S;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_W):
+ mips32_op = OPC_CVT_D_W;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_L):
+ mips32_op = OPC_CVT_D_L;
+ goto do_unaryfp;
+
+ /* Conversions from single */
+ case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_D):
+ mips32_op = OPC_CVT_S_D;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_W):
+ mips32_op = OPC_CVT_S_W;
+ goto do_unaryfp;
+ case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_L):
+ mips32_op = OPC_CVT_S_L;
+ do_unaryfp:
+ gen_farith(ctx, mips32_op, -1, rs, rt, 0);
+ break;
+
+ /* Conditional moves on floating-point codes */
+ case COND_FLOAT_MOV(MOVT, 0):
+ case COND_FLOAT_MOV(MOVT, 1):
+ case COND_FLOAT_MOV(MOVT, 2):
+ case COND_FLOAT_MOV(MOVT, 3):
+ case COND_FLOAT_MOV(MOVT, 4):
+ case COND_FLOAT_MOV(MOVT, 5):
+ case COND_FLOAT_MOV(MOVT, 6):
+ case COND_FLOAT_MOV(MOVT, 7):
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 1);
+ break;
+ case COND_FLOAT_MOV(MOVF, 0):
+ case COND_FLOAT_MOV(MOVF, 1):
+ case COND_FLOAT_MOV(MOVF, 2):
+ case COND_FLOAT_MOV(MOVF, 3):
+ case COND_FLOAT_MOV(MOVF, 4):
+ case COND_FLOAT_MOV(MOVF, 5):
+ case COND_FLOAT_MOV(MOVF, 6):
+ case COND_FLOAT_MOV(MOVF, 7):
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 0);
+ break;
+ default:
+ MIPS_INVAL("pool32fxf");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+}
+
+static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx)
+{
+ int32_t offset;
+ uint16_t insn;
+ int rt, rs, rd, rr;
+ int16_t imm;
+ uint32_t op, minor, minor2, mips32_op;
+ uint32_t cond, fmt, cc;
+
+ insn = translator_lduw(env, ctx->base.pc_next + 2);
+ ctx->opcode = (ctx->opcode << 16) | insn;
+
+ rt = (ctx->opcode >> 21) & 0x1f;
+ rs = (ctx->opcode >> 16) & 0x1f;
+ rd = (ctx->opcode >> 11) & 0x1f;
+ rr = (ctx->opcode >> 6) & 0x1f;
+ imm = (int16_t) ctx->opcode;
+
+ op = (ctx->opcode >> 26) & 0x3f;
+ switch (op) {
+ case POOL32A:
+ minor = ctx->opcode & 0x3f;
+ switch (minor) {
+ case 0x00:
+ minor = (ctx->opcode >> 6) & 0xf;
+ switch (minor) {
+ case SLL32:
+ mips32_op = OPC_SLL;
+ goto do_shifti;
+ case SRA:
+ mips32_op = OPC_SRA;
+ goto do_shifti;
+ case SRL32:
+ mips32_op = OPC_SRL;
+ goto do_shifti;
+ case ROTR:
+ mips32_op = OPC_ROTR;
+ do_shifti:
+ gen_shift_imm(ctx, mips32_op, rt, rs, rd);
+ break;
+ case SELEQZ:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_cond_move(ctx, OPC_SELEQZ, rd, rs, rt);
+ break;
+ case SELNEZ:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_cond_move(ctx, OPC_SELNEZ, rd, rs, rt);
+ break;
+ case R6_RDHWR:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_rdhwr(ctx, rt, rs, extract32(ctx->opcode, 11, 3));
+ break;
+ default:
+ goto pool32a_invalid;
+ }
+ break;
+ case 0x10:
+ minor = (ctx->opcode >> 6) & 0xf;
+ switch (minor) {
+ /* Arithmetic */
+ case ADD:
+ mips32_op = OPC_ADD;
+ goto do_arith;
+ case ADDU32:
+ mips32_op = OPC_ADDU;
+ goto do_arith;
+ case SUB:
+ mips32_op = OPC_SUB;
+ goto do_arith;
+ case SUBU32:
+ mips32_op = OPC_SUBU;
+ goto do_arith;
+ case MUL:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MUL;
+ do_arith:
+ gen_arith(ctx, mips32_op, rd, rs, rt);
+ break;
+ /* Shifts */
+ case SLLV:
+ mips32_op = OPC_SLLV;
+ goto do_shift;
+ case SRLV:
+ mips32_op = OPC_SRLV;
+ goto do_shift;
+ case SRAV:
+ mips32_op = OPC_SRAV;
+ goto do_shift;
+ case ROTRV:
+ mips32_op = OPC_ROTRV;
+ do_shift:
+ gen_shift(ctx, mips32_op, rd, rs, rt);
+ break;
+ /* Logical operations */
+ case AND:
+ mips32_op = OPC_AND;
+ goto do_logic;
+ case OR32:
+ mips32_op = OPC_OR;
+ goto do_logic;
+ case NOR:
+ mips32_op = OPC_NOR;
+ goto do_logic;
+ case XOR32:
+ mips32_op = OPC_XOR;
+ do_logic:
+ gen_logic(ctx, mips32_op, rd, rs, rt);
+ break;
+ /* Set less than */
+ case SLT:
+ mips32_op = OPC_SLT;
+ goto do_slt;
+ case SLTU:
+ mips32_op = OPC_SLTU;
+ do_slt:
+ gen_slt(ctx, mips32_op, rd, rs, rt);
+ break;
+ default:
+ goto pool32a_invalid;
+ }
+ break;
+ case 0x18:
+ minor = (ctx->opcode >> 6) & 0xf;
+ switch (minor) {
+ /* Conditional moves */
+ case MOVN: /* MUL */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* MUL */
+ gen_r6_muldiv(ctx, R6_OPC_MUL, rd, rs, rt);
+ } else {
+ /* MOVN */
+ gen_cond_move(ctx, OPC_MOVN, rd, rs, rt);
+ }
+ break;
+ case MOVZ: /* MUH */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* MUH */
+ gen_r6_muldiv(ctx, R6_OPC_MUH, rd, rs, rt);
+ } else {
+ /* MOVZ */
+ gen_cond_move(ctx, OPC_MOVZ, rd, rs, rt);
+ }
+ break;
+ case MULU:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_r6_muldiv(ctx, R6_OPC_MULU, rd, rs, rt);
+ break;
+ case MUHU:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_r6_muldiv(ctx, R6_OPC_MUHU, rd, rs, rt);
+ break;
+ case LWXS: /* DIV */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* DIV */
+ gen_r6_muldiv(ctx, R6_OPC_DIV, rd, rs, rt);
+ } else {
+ /* LWXS */
+ gen_ldxs(ctx, rs, rt, rd);
+ }
+ break;
+ case MOD:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_r6_muldiv(ctx, R6_OPC_MOD, rd, rs, rt);
+ break;
+ case R6_DIVU:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_r6_muldiv(ctx, R6_OPC_DIVU, rd, rs, rt);
+ break;
+ case MODU:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_r6_muldiv(ctx, R6_OPC_MODU, rd, rs, rt);
+ break;
+ default:
+ goto pool32a_invalid;
+ }
+ break;
+ case INS:
+ gen_bitops(ctx, OPC_INS, rt, rs, rr, rd);
+ return;
+ case LSA:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_lsa(ctx, rd, rt, rs, extract32(ctx->opcode, 9, 2));
+ break;
+ case ALIGN:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_align(ctx, 32, rd, rs, rt, extract32(ctx->opcode, 9, 2));
+ break;
+ case EXT:
+ gen_bitops(ctx, OPC_EXT, rt, rs, rr, rd);
+ return;
+ case POOL32AXF:
+ gen_pool32axf(env, ctx, rt, rs);
+ break;
+ case BREAK32:
+ generate_exception_end(ctx, EXCP_BREAK);
+ break;
+ case SIGRIE:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_reserved_instruction(ctx);
+ break;
+ default:
+ pool32a_invalid:
+ MIPS_INVAL("pool32a");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+ break;
+ case POOL32B:
+ minor = (ctx->opcode >> 12) & 0xf;
+ switch (minor) {
+ case CACHE:
+ check_cp0_enabled(ctx);
+ if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
+ gen_cache_operation(ctx, rt, rs, imm);
+ }
+ break;
+ case LWC2:
+ case SWC2:
+ /* COP2: Not implemented. */
+ generate_exception_err(ctx, EXCP_CpU, 2);
+ break;
+#ifdef TARGET_MIPS64
+ case LDP:
+ case SDP:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+#endif
+ /* fall through */
+ case LWP:
+ case SWP:
+ gen_ldst_pair(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
+ break;
+#ifdef TARGET_MIPS64
+ case LDM:
+ case SDM:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+#endif
+ /* fall through */
+ case LWM32:
+ case SWM32:
+ gen_ldst_multiple(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
+ break;
+ default:
+ MIPS_INVAL("pool32b");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+ break;
+ case POOL32F:
+ if (ctx->CP0_Config1 & (1 << CP0C1_FP)) {
+ minor = ctx->opcode & 0x3f;
+ check_cp1_enabled(ctx);
+ switch (minor) {
+ case ALNV_PS:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_ALNV_PS;
+ goto do_madd;
+ case MADD_S:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MADD_S;
+ goto do_madd;
+ case MADD_D:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MADD_D;
+ goto do_madd;
+ case MADD_PS:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MADD_PS;
+ goto do_madd;
+ case MSUB_S:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MSUB_S;
+ goto do_madd;
+ case MSUB_D:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MSUB_D;
+ goto do_madd;
+ case MSUB_PS:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_MSUB_PS;
+ goto do_madd;
+ case NMADD_S:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_NMADD_S;
+ goto do_madd;
+ case NMADD_D:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_NMADD_D;
+ goto do_madd;
+ case NMADD_PS:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_NMADD_PS;
+ goto do_madd;
+ case NMSUB_S:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_NMSUB_S;
+ goto do_madd;
+ case NMSUB_D:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_NMSUB_D;
+ goto do_madd;
+ case NMSUB_PS:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_NMSUB_PS;
+ do_madd:
+ gen_flt3_arith(ctx, mips32_op, rd, rr, rs, rt);
+ break;
+ case CABS_COND_FMT:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ cond = (ctx->opcode >> 6) & 0xf;
+ cc = (ctx->opcode >> 13) & 0x7;
+ fmt = (ctx->opcode >> 10) & 0x3;
+ switch (fmt) {
+ case 0x0:
+ gen_cmpabs_s(ctx, cond, rt, rs, cc);
+ break;
+ case 0x1:
+ gen_cmpabs_d(ctx, cond, rt, rs, cc);
+ break;
+ case 0x2:
+ gen_cmpabs_ps(ctx, cond, rt, rs, cc);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case C_COND_FMT:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ cond = (ctx->opcode >> 6) & 0xf;
+ cc = (ctx->opcode >> 13) & 0x7;
+ fmt = (ctx->opcode >> 10) & 0x3;
+ switch (fmt) {
+ case 0x0:
+ gen_cmp_s(ctx, cond, rt, rs, cc);
+ break;
+ case 0x1:
+ gen_cmp_d(ctx, cond, rt, rs, cc);
+ break;
+ case 0x2:
+ gen_cmp_ps(ctx, cond, rt, rs, cc);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case CMP_CONDN_S:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_r6_cmp_s(ctx, (ctx->opcode >> 6) & 0x1f, rt, rs, rd);
+ break;
+ case CMP_CONDN_D:
+ check_insn(ctx, ISA_MIPS_R6);
+ gen_r6_cmp_d(ctx, (ctx->opcode >> 6) & 0x1f, rt, rs, rd);
+ break;
+ case POOL32FXF:
+ gen_pool32fxf(ctx, rt, rs);
+ break;
+ case 0x00:
+ /* PLL foo */
+ switch ((ctx->opcode >> 6) & 0x7) {
+ case PLL_PS:
+ mips32_op = OPC_PLL_PS;
+ goto do_ps;
+ case PLU_PS:
+ mips32_op = OPC_PLU_PS;
+ goto do_ps;
+ case PUL_PS:
+ mips32_op = OPC_PUL_PS;
+ goto do_ps;
+ case PUU_PS:
+ mips32_op = OPC_PUU_PS;
+ goto do_ps;
+ case CVT_PS_S:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_CVT_PS_S;
+ do_ps:
+ gen_farith(ctx, mips32_op, rt, rs, rd, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case MIN_FMT:
+ check_insn(ctx, ISA_MIPS_R6);
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ gen_farith(ctx, OPC_MIN_S, rt, rs, rd, 0);
+ break;
+ case FMT_SDPS_D:
+ gen_farith(ctx, OPC_MIN_D, rt, rs, rd, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case 0x08:
+ /* [LS][WDU]XC1 */
+ switch ((ctx->opcode >> 6) & 0x7) {
+ case LWXC1:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LWXC1;
+ goto do_ldst_cp1;
+ case SWXC1:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SWXC1;
+ goto do_ldst_cp1;
+ case LDXC1:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LDXC1;
+ goto do_ldst_cp1;
+ case SDXC1:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SDXC1;
+ goto do_ldst_cp1;
+ case LUXC1:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LUXC1;
+ goto do_ldst_cp1;
+ case SUXC1:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SUXC1;
+ do_ldst_cp1:
+ gen_flt3_ldst(ctx, mips32_op, rd, rd, rt, rs);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case MAX_FMT:
+ check_insn(ctx, ISA_MIPS_R6);
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ gen_farith(ctx, OPC_MAX_S, rt, rs, rd, 0);
+ break;
+ case FMT_SDPS_D:
+ gen_farith(ctx, OPC_MAX_D, rt, rs, rd, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case 0x18:
+ /* 3D insns */
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ fmt = (ctx->opcode >> 9) & 0x3;
+ switch ((ctx->opcode >> 6) & 0x7) {
+ case RSQRT2_FMT:
+ switch (fmt) {
+ case FMT_SDPS_S:
+ mips32_op = OPC_RSQRT2_S;
+ goto do_3d;
+ case FMT_SDPS_D:
+ mips32_op = OPC_RSQRT2_D;
+ goto do_3d;
+ case FMT_SDPS_PS:
+ mips32_op = OPC_RSQRT2_PS;
+ goto do_3d;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case RECIP2_FMT:
+ switch (fmt) {
+ case FMT_SDPS_S:
+ mips32_op = OPC_RECIP2_S;
+ goto do_3d;
+ case FMT_SDPS_D:
+ mips32_op = OPC_RECIP2_D;
+ goto do_3d;
+ case FMT_SDPS_PS:
+ mips32_op = OPC_RECIP2_PS;
+ goto do_3d;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case ADDR_PS:
+ mips32_op = OPC_ADDR_PS;
+ goto do_3d;
+ case MULR_PS:
+ mips32_op = OPC_MULR_PS;
+ do_3d:
+ gen_farith(ctx, mips32_op, rt, rs, rd, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case 0x20:
+ /* MOV[FT].fmt, PREFX, RINT.fmt, CLASS.fmt*/
+ cc = (ctx->opcode >> 13) & 0x7;
+ fmt = (ctx->opcode >> 9) & 0x3;
+ switch ((ctx->opcode >> 6) & 0x7) {
+ case MOVF_FMT: /* RINT_FMT */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* RINT_FMT */
+ switch (fmt) {
+ case FMT_SDPS_S:
+ gen_farith(ctx, OPC_RINT_S, 0, rt, rs, 0);
+ break;
+ case FMT_SDPS_D:
+ gen_farith(ctx, OPC_RINT_D, 0, rt, rs, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ } else {
+ /* MOVF_FMT */
+ switch (fmt) {
+ case FMT_SDPS_S:
+ gen_movcf_s(ctx, rs, rt, cc, 0);
+ break;
+ case FMT_SDPS_D:
+ gen_movcf_d(ctx, rs, rt, cc, 0);
+ break;
+ case FMT_SDPS_PS:
+ check_ps(ctx);
+ gen_movcf_ps(ctx, rs, rt, cc, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ }
+ break;
+ case MOVT_FMT: /* CLASS_FMT */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* CLASS_FMT */
+ switch (fmt) {
+ case FMT_SDPS_S:
+ gen_farith(ctx, OPC_CLASS_S, 0, rt, rs, 0);
+ break;
+ case FMT_SDPS_D:
+ gen_farith(ctx, OPC_CLASS_D, 0, rt, rs, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ } else {
+ /* MOVT_FMT */
+ switch (fmt) {
+ case FMT_SDPS_S:
+ gen_movcf_s(ctx, rs, rt, cc, 1);
+ break;
+ case FMT_SDPS_D:
+ gen_movcf_d(ctx, rs, rt, cc, 1);
+ break;
+ case FMT_SDPS_PS:
+ check_ps(ctx);
+ gen_movcf_ps(ctx, rs, rt, cc, 1);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ }
+ break;
+ case PREFX:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+#define FINSN_3ARG_SDPS(prfx) \
+ switch ((ctx->opcode >> 8) & 0x3) { \
+ case FMT_SDPS_S: \
+ mips32_op = OPC_##prfx##_S; \
+ goto do_fpop; \
+ case FMT_SDPS_D: \
+ mips32_op = OPC_##prfx##_D; \
+ goto do_fpop; \
+ case FMT_SDPS_PS: \
+ check_ps(ctx); \
+ mips32_op = OPC_##prfx##_PS; \
+ goto do_fpop; \
+ default: \
+ goto pool32f_invalid; \
+ }
+ case MINA_FMT:
+ check_insn(ctx, ISA_MIPS_R6);
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ gen_farith(ctx, OPC_MINA_S, rt, rs, rd, 0);
+ break;
+ case FMT_SDPS_D:
+ gen_farith(ctx, OPC_MINA_D, rt, rs, rd, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case MAXA_FMT:
+ check_insn(ctx, ISA_MIPS_R6);
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ gen_farith(ctx, OPC_MAXA_S, rt, rs, rd, 0);
+ break;
+ case FMT_SDPS_D:
+ gen_farith(ctx, OPC_MAXA_D, rt, rs, rd, 0);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case 0x30:
+ /* regular FP ops */
+ switch ((ctx->opcode >> 6) & 0x3) {
+ case ADD_FMT:
+ FINSN_3ARG_SDPS(ADD);
+ break;
+ case SUB_FMT:
+ FINSN_3ARG_SDPS(SUB);
+ break;
+ case MUL_FMT:
+ FINSN_3ARG_SDPS(MUL);
+ break;
+ case DIV_FMT:
+ fmt = (ctx->opcode >> 8) & 0x3;
+ if (fmt == 1) {
+ mips32_op = OPC_DIV_D;
+ } else if (fmt == 0) {
+ mips32_op = OPC_DIV_S;
+ } else {
+ goto pool32f_invalid;
+ }
+ goto do_fpop;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case 0x38:
+ /* cmovs */
+ switch ((ctx->opcode >> 6) & 0x7) {
+ case MOVN_FMT: /* SELEQZ_FMT */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* SELEQZ_FMT */
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ gen_sel_s(ctx, OPC_SELEQZ_S, rd, rt, rs);
+ break;
+ case FMT_SDPS_D:
+ gen_sel_d(ctx, OPC_SELEQZ_D, rd, rt, rs);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ } else {
+ /* MOVN_FMT */
+ FINSN_3ARG_SDPS(MOVN);
+ }
+ break;
+ case MOVN_FMT_04:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ FINSN_3ARG_SDPS(MOVN);
+ break;
+ case MOVZ_FMT: /* SELNEZ_FMT */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* SELNEZ_FMT */
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ gen_sel_s(ctx, OPC_SELNEZ_S, rd, rt, rs);
+ break;
+ case FMT_SDPS_D:
+ gen_sel_d(ctx, OPC_SELNEZ_D, rd, rt, rs);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ } else {
+ /* MOVZ_FMT */
+ FINSN_3ARG_SDPS(MOVZ);
+ }
+ break;
+ case MOVZ_FMT_05:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ FINSN_3ARG_SDPS(MOVZ);
+ break;
+ case SEL_FMT:
+ check_insn(ctx, ISA_MIPS_R6);
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ gen_sel_s(ctx, OPC_SEL_S, rd, rt, rs);
+ break;
+ case FMT_SDPS_D:
+ gen_sel_d(ctx, OPC_SEL_D, rd, rt, rs);
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case MADDF_FMT:
+ check_insn(ctx, ISA_MIPS_R6);
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ mips32_op = OPC_MADDF_S;
+ goto do_fpop;
+ case FMT_SDPS_D:
+ mips32_op = OPC_MADDF_D;
+ goto do_fpop;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ case MSUBF_FMT:
+ check_insn(ctx, ISA_MIPS_R6);
+ switch ((ctx->opcode >> 9) & 0x3) {
+ case FMT_SDPS_S:
+ mips32_op = OPC_MSUBF_S;
+ goto do_fpop;
+ case FMT_SDPS_D:
+ mips32_op = OPC_MSUBF_D;
+ goto do_fpop;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ default:
+ goto pool32f_invalid;
+ }
+ break;
+ do_fpop:
+ gen_farith(ctx, mips32_op, rt, rs, rd, 0);
+ break;
+ default:
+ pool32f_invalid:
+ MIPS_INVAL("pool32f");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+ } else {
+ generate_exception_err(ctx, EXCP_CpU, 1);
+ }
+ break;
+ case POOL32I:
+ minor = (ctx->opcode >> 21) & 0x1f;
+ switch (minor) {
+ case BLTZ:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BLTZ, 4, rs, -1, imm << 1, 4);
+ break;
+ case BLTZAL:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BLTZAL, 4, rs, -1, imm << 1, 4);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ case BLTZALS:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BLTZAL, 4, rs, -1, imm << 1, 2);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ case BGEZ:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BGEZ, 4, rs, -1, imm << 1, 4);
+ break;
+ case BGEZAL:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BGEZAL, 4, rs, -1, imm << 1, 4);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ case BGEZALS:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BGEZAL, 4, rs, -1, imm << 1, 2);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ case BLEZ:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BLEZ, 4, rs, -1, imm << 1, 4);
+ break;
+ case BGTZ:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, OPC_BGTZ, 4, rs, -1, imm << 1, 4);
+ break;
+
+ /* Traps */
+ case TLTI: /* BC1EQZC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* BC1EQZC */
+ check_cp1_enabled(ctx);
+ gen_compute_branch1_r6(ctx, OPC_BC1EQZ, rs, imm << 1, 0);
+ } else {
+ /* TLTI */
+ mips32_op = OPC_TLTI;
+ goto do_trapi;
+ }
+ break;
+ case TGEI: /* BC1NEZC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* BC1NEZC */
+ check_cp1_enabled(ctx);
+ gen_compute_branch1_r6(ctx, OPC_BC1NEZ, rs, imm << 1, 0);
+ } else {
+ /* TGEI */
+ mips32_op = OPC_TGEI;
+ goto do_trapi;
+ }
+ break;
+ case TLTIU:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_TLTIU;
+ goto do_trapi;
+ case TGEIU:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_TGEIU;
+ goto do_trapi;
+ case TNEI: /* SYNCI */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* SYNCI */
+ /*
+ * Break the TB to be able to sync copied instructions
+ * immediately.
+ */
+ ctx->base.is_jmp = DISAS_STOP;
+ } else {
+ /* TNEI */
+ mips32_op = OPC_TNEI;
+ goto do_trapi;
+ }
+ break;
+ case TEQI:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_TEQI;
+ do_trapi:
+ gen_trap(ctx, mips32_op, rs, -1, imm);
+ break;
+
+ case BNEZC:
+ case BEQZC:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_compute_branch(ctx, minor == BNEZC ? OPC_BNE : OPC_BEQ,
+ 4, rs, 0, imm << 1, 0);
+ /*
+ * Compact branches don't have a delay slot, so just let
+ * the normal delay slot handling take us to the branch
+ * target.
+ */
+ break;
+ case LUI:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ gen_logic_imm(ctx, OPC_LUI, rs, 0, imm);
+ break;
+ case SYNCI:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ /*
+ * Break the TB to be able to sync copied instructions
+ * immediately.
+ */
+ ctx->base.is_jmp = DISAS_STOP;
+ break;
+ case BC2F:
+ case BC2T:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ /* COP2: Not implemented. */
+ generate_exception_err(ctx, EXCP_CpU, 2);
+ break;
+ case BC1F:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1FANY2 : OPC_BC1F;
+ goto do_cp1branch;
+ case BC1T:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1TANY2 : OPC_BC1T;
+ goto do_cp1branch;
+ case BC1ANY4F:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_BC1FANY4;
+ goto do_cp1mips3d;
+ case BC1ANY4T:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_BC1TANY4;
+ do_cp1mips3d:
+ check_cop1x(ctx);
+ check_insn(ctx, ASE_MIPS3D);
+ /* Fall through */
+ do_cp1branch:
+ if (env->CP0_Config1 & (1 << CP0C1_FP)) {
+ check_cp1_enabled(ctx);
+ gen_compute_branch1(ctx, mips32_op,
+ (ctx->opcode >> 18) & 0x7, imm << 1);
+ } else {
+ generate_exception_err(ctx, EXCP_CpU, 1);
+ }
+ break;
+ default:
+ MIPS_INVAL("pool32i");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+ break;
+ case POOL32C:
+ minor = (ctx->opcode >> 12) & 0xf;
+ offset = sextract32(ctx->opcode, 0,
+ (ctx->insn_flags & ISA_MIPS_R6) ? 9 : 12);
+ switch (minor) {
+ case LWL:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LWL;
+ goto do_ld_lr;
+ case SWL:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SWL;
+ goto do_st_lr;
+ case LWR:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LWR;
+ goto do_ld_lr;
+ case SWR:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SWR;
+ goto do_st_lr;
+#if defined(TARGET_MIPS64)
+ case LDL:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LDL;
+ goto do_ld_lr;
+ case SDL:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SDL;
+ goto do_st_lr;
+ case LDR:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LDR;
+ goto do_ld_lr;
+ case SDR:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SDR;
+ goto do_st_lr;
+ case LWU:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ mips32_op = OPC_LWU;
+ goto do_ld_lr;
+ case LLD:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ mips32_op = OPC_LLD;
+ goto do_ld_lr;
+#endif
+ case LL:
+ mips32_op = OPC_LL;
+ goto do_ld_lr;
+ do_ld_lr:
+ gen_ld(ctx, mips32_op, rt, rs, offset);
+ break;
+ do_st_lr:
+ gen_st(ctx, mips32_op, rt, rs, offset);
+ break;
+ case SC:
+ gen_st_cond(ctx, rt, rs, offset, MO_TESL, false);
+ break;
+#if defined(TARGET_MIPS64)
+ case SCD:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ gen_st_cond(ctx, rt, rs, offset, MO_TEQ, false);
+ break;
+#endif
+ case LD_EVA:
+ if (!ctx->eva) {
+ MIPS_INVAL("pool32c ld-eva");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+ check_cp0_enabled(ctx);
+
+ minor2 = (ctx->opcode >> 9) & 0x7;
+ offset = sextract32(ctx->opcode, 0, 9);
+ switch (minor2) {
+ case LBUE:
+ mips32_op = OPC_LBUE;
+ goto do_ld_lr;
+ case LHUE:
+ mips32_op = OPC_LHUE;
+ goto do_ld_lr;
+ case LWLE:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LWLE;
+ goto do_ld_lr;
+ case LWRE:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_LWRE;
+ goto do_ld_lr;
+ case LBE:
+ mips32_op = OPC_LBE;
+ goto do_ld_lr;
+ case LHE:
+ mips32_op = OPC_LHE;
+ goto do_ld_lr;
+ case LLE:
+ mips32_op = OPC_LLE;
+ goto do_ld_lr;
+ case LWE:
+ mips32_op = OPC_LWE;
+ goto do_ld_lr;
+ };
+ break;
+ case ST_EVA:
+ if (!ctx->eva) {
+ MIPS_INVAL("pool32c st-eva");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+ check_cp0_enabled(ctx);
+
+ minor2 = (ctx->opcode >> 9) & 0x7;
+ offset = sextract32(ctx->opcode, 0, 9);
+ switch (minor2) {
+ case SWLE:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SWLE;
+ goto do_st_lr;
+ case SWRE:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ mips32_op = OPC_SWRE;
+ goto do_st_lr;
+ case PREFE:
+ /* Treat as no-op */
+ if ((ctx->insn_flags & ISA_MIPS_R6) && (rt >= 24)) {
+ /* hint codes 24-31 are reserved and signal RI */
+ generate_exception(ctx, EXCP_RI);
+ }
+ break;
+ case CACHEE:
+ /* Treat as no-op */
+ if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
+ gen_cache_operation(ctx, rt, rs, offset);
+ }
+ break;
+ case SBE:
+ mips32_op = OPC_SBE;
+ goto do_st_lr;
+ case SHE:
+ mips32_op = OPC_SHE;
+ goto do_st_lr;
+ case SCE:
+ gen_st_cond(ctx, rt, rs, offset, MO_TESL, true);
+ break;
+ case SWE:
+ mips32_op = OPC_SWE;
+ goto do_st_lr;
+ };
+ break;
+ case PREF:
+ /* Treat as no-op */
+ if ((ctx->insn_flags & ISA_MIPS_R6) && (rt >= 24)) {
+ /* hint codes 24-31 are reserved and signal RI */
+ generate_exception(ctx, EXCP_RI);
+ }
+ break;
+ default:
+ MIPS_INVAL("pool32c");
+ gen_reserved_instruction(ctx);
+ break;
+ }
+ break;
+ case ADDI32: /* AUI, LUI */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* AUI, LUI */
+ gen_logic_imm(ctx, OPC_LUI, rt, rs, imm);
+ } else {
+ /* ADDI32 */
+ mips32_op = OPC_ADDI;
+ goto do_addi;
+ }
+ break;
+ case ADDIU32:
+ mips32_op = OPC_ADDIU;
+ do_addi:
+ gen_arith_imm(ctx, mips32_op, rt, rs, imm);
+ break;
+
+ /* Logical operations */
+ case ORI32:
+ mips32_op = OPC_ORI;
+ goto do_logici;
+ case XORI32:
+ mips32_op = OPC_XORI;
+ goto do_logici;
+ case ANDI32:
+ mips32_op = OPC_ANDI;
+ do_logici:
+ gen_logic_imm(ctx, mips32_op, rt, rs, imm);
+ break;
+
+ /* Set less than immediate */
+ case SLTI32:
+ mips32_op = OPC_SLTI;
+ goto do_slti;
+ case SLTIU32:
+ mips32_op = OPC_SLTIU;
+ do_slti:
+ gen_slt_imm(ctx, mips32_op, rt, rs, imm);
+ break;
+ case JALX32:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
+ gen_compute_branch(ctx, OPC_JALX, 4, rt, rs, offset, 4);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ break;
+ case JALS32: /* BOVC, BEQC, BEQZALC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ if (rs >= rt) {
+ /* BOVC */
+ mips32_op = OPC_BOVC;
+ } else if (rs < rt && rs == 0) {
+ /* BEQZALC */
+ mips32_op = OPC_BEQZALC;
+ } else {
+ /* BEQC */
+ mips32_op = OPC_BEQC;
+ }
+ gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
+ } else {
+ /* JALS32 */
+ offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 1;
+ gen_compute_branch(ctx, OPC_JAL, 4, rt, rs, offset, 2);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ }
+ break;
+ case BEQ32: /* BC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* BC */
+ gen_compute_compact_branch(ctx, OPC_BC, 0, 0,
+ sextract32(ctx->opcode << 1, 0, 27));
+ } else {
+ /* BEQ32 */
+ gen_compute_branch(ctx, OPC_BEQ, 4, rt, rs, imm << 1, 4);
+ }
+ break;
+ case BNE32: /* BALC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* BALC */
+ gen_compute_compact_branch(ctx, OPC_BALC, 0, 0,
+ sextract32(ctx->opcode << 1, 0, 27));
+ } else {
+ /* BNE32 */
+ gen_compute_branch(ctx, OPC_BNE, 4, rt, rs, imm << 1, 4);
+ }
+ break;
+ case J32: /* BGTZC, BLTZC, BLTC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ if (rs == 0 && rt != 0) {
+ /* BGTZC */
+ mips32_op = OPC_BGTZC;
+ } else if (rs != 0 && rt != 0 && rs == rt) {
+ /* BLTZC */
+ mips32_op = OPC_BLTZC;
+ } else {
+ /* BLTC */
+ mips32_op = OPC_BLTC;
+ }
+ gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
+ } else {
+ /* J32 */
+ gen_compute_branch(ctx, OPC_J, 4, rt, rs,
+ (int32_t)(ctx->opcode & 0x3FFFFFF) << 1, 4);
+ }
+ break;
+ case JAL32: /* BLEZC, BGEZC, BGEC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ if (rs == 0 && rt != 0) {
+ /* BLEZC */
+ mips32_op = OPC_BLEZC;
+ } else if (rs != 0 && rt != 0 && rs == rt) {
+ /* BGEZC */
+ mips32_op = OPC_BGEZC;
+ } else {
+ /* BGEC */
+ mips32_op = OPC_BGEC;
+ }
+ gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
+ } else {
+ /* JAL32 */
+ gen_compute_branch(ctx, OPC_JAL, 4, rt, rs,
+ (int32_t)(ctx->opcode & 0x3FFFFFF) << 1, 4);
+ ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
+ }
+ break;
+ /* Floating point (COP1) */
+ case LWC132:
+ mips32_op = OPC_LWC1;
+ goto do_cop1;
+ case LDC132:
+ mips32_op = OPC_LDC1;
+ goto do_cop1;
+ case SWC132:
+ mips32_op = OPC_SWC1;
+ goto do_cop1;
+ case SDC132:
+ mips32_op = OPC_SDC1;
+ do_cop1:
+ gen_cop1_ldst(ctx, mips32_op, rt, rs, imm);
+ break;
+ case ADDIUPC: /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */
+ switch ((ctx->opcode >> 16) & 0x1f) {
+ case ADDIUPC_00:
+ case ADDIUPC_01:
+ case ADDIUPC_02:
+ case ADDIUPC_03:
+ case ADDIUPC_04:
+ case ADDIUPC_05:
+ case ADDIUPC_06:
+ case ADDIUPC_07:
+ gen_pcrel(ctx, OPC_ADDIUPC, ctx->base.pc_next & ~0x3, rt);
+ break;
+ case AUIPC:
+ gen_pcrel(ctx, OPC_AUIPC, ctx->base.pc_next, rt);
+ break;
+ case ALUIPC:
+ gen_pcrel(ctx, OPC_ALUIPC, ctx->base.pc_next, rt);
+ break;
+ case LWPC_08:
+ case LWPC_09:
+ case LWPC_0A:
+ case LWPC_0B:
+ case LWPC_0C:
+ case LWPC_0D:
+ case LWPC_0E:
+ case LWPC_0F:
+ gen_pcrel(ctx, R6_OPC_LWPC, ctx->base.pc_next & ~0x3, rt);
+ break;
+ default:
+ generate_exception(ctx, EXCP_RI);
+ break;
+ }
+ } else {
+ /* ADDIUPC */
+ int reg = mmreg(ZIMM(ctx->opcode, 23, 3));
+ offset = SIMM(ctx->opcode, 0, 23) << 2;
+
+ gen_addiupc(ctx, reg, offset, 0, 0);
+ }
+ break;
+ case BNVC: /* BNEC, BNEZALC */
+ check_insn(ctx, ISA_MIPS_R6);
+ if (rs >= rt) {
+ /* BNVC */
+ mips32_op = OPC_BNVC;
+ } else if (rs < rt && rs == 0) {
+ /* BNEZALC */
+ mips32_op = OPC_BNEZALC;
+ } else {
+ /* BNEC */
+ mips32_op = OPC_BNEC;
+ }
+ gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
+ break;
+ case R6_BNEZC: /* JIALC */
+ check_insn(ctx, ISA_MIPS_R6);
+ if (rt != 0) {
+ /* BNEZC */
+ gen_compute_compact_branch(ctx, OPC_BNEZC, rt, 0,
+ sextract32(ctx->opcode << 1, 0, 22));
+ } else {
+ /* JIALC */
+ gen_compute_compact_branch(ctx, OPC_JIALC, 0, rs, imm);
+ }
+ break;
+ case R6_BEQZC: /* JIC */
+ check_insn(ctx, ISA_MIPS_R6);
+ if (rt != 0) {
+ /* BEQZC */
+ gen_compute_compact_branch(ctx, OPC_BEQZC, rt, 0,
+ sextract32(ctx->opcode << 1, 0, 22));
+ } else {
+ /* JIC */
+ gen_compute_compact_branch(ctx, OPC_JIC, 0, rs, imm);
+ }
+ break;
+ case BLEZALC: /* BGEZALC, BGEUC */
+ check_insn(ctx, ISA_MIPS_R6);
+ if (rs == 0 && rt != 0) {
+ /* BLEZALC */
+ mips32_op = OPC_BLEZALC;
+ } else if (rs != 0 && rt != 0 && rs == rt) {
+ /* BGEZALC */
+ mips32_op = OPC_BGEZALC;
+ } else {
+ /* BGEUC */
+ mips32_op = OPC_BGEUC;
+ }
+ gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
+ break;
+ case BGTZALC: /* BLTZALC, BLTUC */
+ check_insn(ctx, ISA_MIPS_R6);
+ if (rs == 0 && rt != 0) {
+ /* BGTZALC */
+ mips32_op = OPC_BGTZALC;
+ } else if (rs != 0 && rt != 0 && rs == rt) {
+ /* BLTZALC */
+ mips32_op = OPC_BLTZALC;
+ } else {
+ /* BLTUC */
+ mips32_op = OPC_BLTUC;
+ }
+ gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
+ break;
+ /* Loads and stores */
+ case LB32:
+ mips32_op = OPC_LB;
+ goto do_ld;
+ case LBU32:
+ mips32_op = OPC_LBU;
+ goto do_ld;
+ case LH32:
+ mips32_op = OPC_LH;
+ goto do_ld;
+ case LHU32:
+ mips32_op = OPC_LHU;
+ goto do_ld;
+ case LW32:
+ mips32_op = OPC_LW;
+ goto do_ld;
+#ifdef TARGET_MIPS64
+ case LD32:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ mips32_op = OPC_LD;
+ goto do_ld;
+ case SD32:
+ check_insn(ctx, ISA_MIPS3);
+ check_mips_64(ctx);
+ mips32_op = OPC_SD;
+ goto do_st;
+#endif
+ case SB32:
+ mips32_op = OPC_SB;
+ goto do_st;
+ case SH32:
+ mips32_op = OPC_SH;
+ goto do_st;
+ case SW32:
+ mips32_op = OPC_SW;
+ goto do_st;
+ do_ld:
+ gen_ld(ctx, mips32_op, rt, rs, imm);
+ break;
+ do_st:
+ gen_st(ctx, mips32_op, rt, rs, imm);
+ break;
+ default:
+ gen_reserved_instruction(ctx);
+ break;
+ }
+}
+
+static int decode_isa_micromips(CPUMIPSState *env, DisasContext *ctx)
+{
+ uint32_t op;
+
+ /* make sure instructions are on a halfword boundary */
+ if (ctx->base.pc_next & 0x1) {
+ env->CP0_BadVAddr = ctx->base.pc_next;
+ generate_exception_end(ctx, EXCP_AdEL);
+ return 2;
+ }
+
+ op = (ctx->opcode >> 10) & 0x3f;
+ /* Enforce properly-sized instructions in a delay slot */
+ if (ctx->hflags & MIPS_HFLAG_BDS_STRICT) {
+ switch (op & 0x7) { /* MSB-3..MSB-5 */
+ case 0:
+ /* POOL32A, POOL32B, POOL32I, POOL32C */
+ case 4:
+ /* ADDI32, ADDIU32, ORI32, XORI32, SLTI32, SLTIU32, ANDI32, JALX32 */
+ case 5:
+ /* LBU32, LHU32, POOL32F, JALS32, BEQ32, BNE32, J32, JAL32 */
+ case 6:
+ /* SB32, SH32, ADDIUPC, SWC132, SDC132, SW32 */
+ case 7:
+ /* LB32, LH32, LWC132, LDC132, LW32 */
+ if (ctx->hflags & MIPS_HFLAG_BDS16) {
+ gen_reserved_instruction(ctx);
+ return 2;
+ }
+ break;
+ case 1:
+ /* POOL16A, POOL16B, POOL16C, LWGP16, POOL16F */
+ case 2:
+ /* LBU16, LHU16, LWSP16, LW16, SB16, SH16, SWSP16, SW16 */
+ case 3:
+ /* MOVE16, ANDI16, POOL16D, POOL16E, BEQZ16, BNEZ16, B16, LI16 */
+ if (ctx->hflags & MIPS_HFLAG_BDS32) {
+ gen_reserved_instruction(ctx);
+ return 2;
+ }
+ break;
+ }
+ }
+
+ switch (op) {
+ case POOL16A:
+ {
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rs1 = mmreg(uMIPS_RS1(ctx->opcode));
+ int rs2 = mmreg(uMIPS_RS2(ctx->opcode));
+ uint32_t opc = 0;
+
+ switch (ctx->opcode & 0x1) {
+ case ADDU16:
+ opc = OPC_ADDU;
+ break;
+ case SUBU16:
+ opc = OPC_SUBU;
+ break;
+ }
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ /*
+ * In the Release 6, the register number location in
+ * the instruction encoding has changed.
+ */
+ gen_arith(ctx, opc, rs1, rd, rs2);
+ } else {
+ gen_arith(ctx, opc, rd, rs1, rs2);
+ }
+ }
+ break;
+ case POOL16B:
+ {
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rs = mmreg(uMIPS_RS(ctx->opcode));
+ int amount = (ctx->opcode >> 1) & 0x7;
+ uint32_t opc = 0;
+ amount = amount == 0 ? 8 : amount;
+
+ switch (ctx->opcode & 0x1) {
+ case SLL16:
+ opc = OPC_SLL;
+ break;
+ case SRL16:
+ opc = OPC_SRL;
+ break;
+ }
+
+ gen_shift_imm(ctx, opc, rd, rs, amount);
+ }
+ break;
+ case POOL16C:
+ if (ctx->insn_flags & ISA_MIPS_R6) {
+ gen_pool16c_r6_insn(ctx);
+ } else {
+ gen_pool16c_insn(ctx);
+ }
+ break;
+ case LWGP16:
+ {
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rb = 28; /* GP */
+ int16_t offset = SIMM(ctx->opcode, 0, 7) << 2;
+
+ gen_ld(ctx, OPC_LW, rd, rb, offset);
+ }
+ break;
+ case POOL16F:
+ check_insn_opc_removed(ctx, ISA_MIPS_R6);
+ if (ctx->opcode & 1) {
+ gen_reserved_instruction(ctx);
+ } else {
+ /* MOVEP */
+ int enc_dest = uMIPS_RD(ctx->opcode);
+ int enc_rt = uMIPS_RS2(ctx->opcode);
+ int enc_rs = uMIPS_RS1(ctx->opcode);
+ gen_movep(ctx, enc_dest, enc_rt, enc_rs);
+ }
+ break;
+ case LBU16:
+ {
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rb = mmreg(uMIPS_RS(ctx->opcode));
+ int16_t offset = ZIMM(ctx->opcode, 0, 4);
+ offset = (offset == 0xf ? -1 : offset);
+
+ gen_ld(ctx, OPC_LBU, rd, rb, offset);
+ }
+ break;
+ case LHU16:
+ {
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rb = mmreg(uMIPS_RS(ctx->opcode));
+ int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
+
+ gen_ld(ctx, OPC_LHU, rd, rb, offset);
+ }
+ break;
+ case LWSP16:
+ {
+ int rd = (ctx->opcode >> 5) & 0x1f;
+ int rb = 29; /* SP */
+ int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
+
+ gen_ld(ctx, OPC_LW, rd, rb, offset);
+ }
+ break;
+ case LW16:
+ {
+ int rd = mmreg(uMIPS_RD(ctx->opcode));
+ int rb = mmreg(uMIPS_RS(ctx->opcode));
+ int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
+
+ gen_ld(ctx, OPC_LW, rd, rb, offset);
+ }
+ break;
+ case SB16:
+ {
+ int rd = mmreg2(uMIPS_RD(ctx->opcode));
+ int rb = mmreg(uMIPS_RS(ctx->opcode));
+ int16_t offset = ZIMM(ctx->opcode, 0, 4);
+
+ gen_st(ctx, OPC_SB, rd, rb, offset);
+ }
+ break;
+ case SH16:
+ {
+ int rd = mmreg2(uMIPS_RD(ctx->opcode));
+ int rb = mmreg(uMIPS_RS(ctx->opcode));
+ int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
+
+ gen_st(ctx, OPC_SH, rd, rb, offset);
+ }
+ break;
+ case SWSP16:
+ {
+ int rd = (ctx->opcode >> 5) & 0x1f;
+ int rb = 29; /* SP */
+ int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
+
+ gen_st(ctx, OPC_SW, rd, rb, offset);
+ }
+ break;
+ case SW16:
+ {
+ int rd = mmreg2(uMIPS_RD(ctx->opcode));
+ int rb = mmreg(uMIPS_RS(ctx->opcode));
+ int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
+
+ gen_st(ctx, OPC_SW, rd, rb, offset);
+ }
+ break;
+ case MOVE16:
+ {
+ int rd = uMIPS_RD5(ctx->opcode);
+ int rs = uMIPS_RS5(ctx->opcode);
+
+ gen_arith(ctx, OPC_ADDU, rd, rs, 0);
+ }
+ break;
+ case ANDI16:
+ gen_andi16(ctx);
+ break;
+ case POOL16D:
+ switch (ctx->opcode & 0x1) {
+ case ADDIUS5:
+ gen_addius5(ctx);
+ break;
+ case ADDIUSP:
+ gen_addiusp(ctx);
+ break;
+ }
+ break;
+ case POOL16E:
+ switch (ctx->opcode & 0x1) {
+ case ADDIUR2:
+ gen_addiur2(ctx);
+ break;
+ case ADDIUR1SP:
+ gen_addiur1sp(ctx);
+ break;
+ }
+ break;
+ case B16: /* BC16 */
+ gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0,
+ sextract32(ctx->opcode, 0, 10) << 1,
+ (ctx->insn_flags & ISA_MIPS_R6) ? 0 : 4);
+ break;
+ case BNEZ16: /* BNEZC16 */
+ case BEQZ16: /* BEQZC16 */
+ gen_compute_branch(ctx, op == BNEZ16 ? OPC_BNE : OPC_BEQ, 2,
+ mmreg(uMIPS_RD(ctx->opcode)),
+ 0, sextract32(ctx->opcode, 0, 7) << 1,
+ (ctx->insn_flags & ISA_MIPS_R6) ? 0 : 4);
+
+ break;
+ case LI16:
+ {
+ int reg = mmreg(uMIPS_RD(ctx->opcode));
+ int imm = ZIMM(ctx->opcode, 0, 7);
+
+ imm = (imm == 0x7f ? -1 : imm);
+ tcg_gen_movi_tl(cpu_gpr[reg], imm);
+ }
+ break;
+ case RES_29:
+ case RES_31:
+ case RES_39:
+ gen_reserved_instruction(ctx);
+ break;
+ default:
+ decode_micromips32_opc(env, ctx);
+ return 4;
+ }
+
+ return 2;
+}