@@ -157,6 +157,9 @@ EXTRACT_HELPER(FPL, 25, 1);
EXTRACT_HELPER(FPFLM, 17, 8);
EXTRACT_HELPER(FPW, 16, 1);
+/* mffscrni */
+EXTRACT_HELPER(RM, 11, 2);
+
/* addpcis */
EXTRACT_HELPER_SPLIT_3(DX, 10, 6, 6, 5, 16, 1, 1, 0, 0)
#if defined(TARGET_PPC64)
@@ -639,6 +639,72 @@ static void gen_mffsl(DisasContext *ctx)
tcg_temp_free_i64(t0);
}
+static void gen_helper_mffscrn(DisasContext *ctx, TCGv_i64 t1)
+{
+ TCGv_i64 t0 = tcg_temp_new_i64();
+ TCGv_i32 mask = tcg_const_i32(0x0001);
+
+ gen_reset_fpstatus();
+ tcg_gen_extu_tl_i64(t0, cpu_fpscr);
+ set_fpr(rD(ctx->opcode), t0);
+
+ /* Mask FPSCR value to clear RN. */
+ tcg_gen_andi_i64(t0, t0, ~FP_MODE);
+
+ /* Merge RN into FPSCR value. */
+ tcg_gen_or_i64(t0, t0, t1);
+
+ gen_helper_store_fpscr(cpu_env, t0, mask);
+
+ tcg_temp_free_i32(mask);
+ tcg_temp_free_i64(t0);
+}
+
+/* mffscrn */
+static void gen_mffscrn(DisasContext *ctx)
+{
+ TCGv_i64 t1;
+
+ if (unlikely(!(ctx->insns_flags2 & PPC2_ISA300))) {
+ return gen_mffs(ctx);
+ }
+
+ if (unlikely(!ctx->fpu_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_FPU);
+ return;
+ }
+
+ t1 = tcg_temp_new_i64();
+ get_fpr(t1, rB(ctx->opcode));
+ /* Mask FRB to get just RN. */
+ tcg_gen_andi_i64(t1, t1, FP_MODE);
+
+ gen_helper_mffscrn(ctx, t1);
+
+ tcg_temp_free_i64(t1);
+}
+
+/* mffscrni */
+static void gen_mffscrni(DisasContext *ctx)
+{
+ TCGv_i64 t1;
+
+ if (unlikely(!(ctx->insns_flags2 & PPC2_ISA300))) {
+ return gen_mffs(ctx);
+ }
+
+ if (unlikely(!ctx->fpu_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_FPU);
+ return;
+ }
+
+ t1 = tcg_const_i64((uint64_t)RM(ctx->opcode));
+
+ gen_helper_mffscrn(ctx, t1);
+
+ tcg_temp_free_i64(t1);
+}
+
/* mtfsb0 */
static void gen_mtfsb0(DisasContext *ctx)
{
@@ -107,6 +107,8 @@ GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT),
GEN_HANDLER_E_2(mffs, 0x3F, 0x07, 0x12, 0x00, 0x00000000, PPC_FLOAT, PPC_NONE),
GEN_HANDLER_E_2(mffsl, 0x3F, 0x07, 0x12, 0x18, 0x00000000, PPC_FLOAT,
PPC2_ISA300),
+GEN_HANDLER_E_2(mffscrn, 0x3F, 0x07, 0x12, 0x16, 0x00000000, PPC_FLOAT, PPC_NONE),
+GEN_HANDLER_E_2(mffscrni, 0x3F, 0x07, 0x12, 0x17, 0x00000000, PPC_FLOAT, PPC_NONE),
GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT),
GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT),
GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x00000000, PPC_FLOAT),