@@ -659,38 +659,45 @@ static inline void gen_op_movl_T0_Dshift(int ot)
tcg_gen_shli_tl(cpu_T[0], cpu_T[0], ot);
};
-static void gen_extu(int ot, TCGv reg)
+static TCGv gen_ext_tl(TCGv dst, TCGv src, int size, bool sign)
{
- switch(ot) {
+ switch (size) {
case OT_BYTE:
- tcg_gen_ext8u_tl(reg, reg);
- break;
+ if (sign) {
+ tcg_gen_ext8s_tl(dst, src);
+ } else {
+ tcg_gen_ext8u_tl(dst, src);
+ }
+ return dst;
case OT_WORD:
- tcg_gen_ext16u_tl(reg, reg);
- break;
+ if (sign) {
+ tcg_gen_ext16s_tl(dst, src);
+ } else {
+ tcg_gen_ext16u_tl(dst, src);
+ }
+ return dst;
+#ifdef TARGET_X86_64
case OT_LONG:
- tcg_gen_ext32u_tl(reg, reg);
- break;
+ if (sign) {
+ tcg_gen_ext32s_tl(dst, src);
+ } else {
+ tcg_gen_ext32u_tl(dst, src);
+ }
+ return dst;
+#endif
default:
- break;
+ return src;
}
}
+static void gen_extu(int ot, TCGv reg)
+{
+ gen_ext_tl(reg, reg, ot, false);
+}
+
static void gen_exts(int ot, TCGv reg)
{
- switch(ot) {
- case OT_BYTE:
- tcg_gen_ext8s_tl(reg, reg);
- break;
- case OT_WORD:
- tcg_gen_ext16s_tl(reg, reg);
- break;
- case OT_LONG:
- tcg_gen_ext32s_tl(reg, reg);
- break;
- default:
- break;
- }
+ gen_ext_tl(reg, reg, ot, true);
}
static inline void gen_op_jnz_ecx(int size, int label1)
@@ -966,54 +973,15 @@ static inline void gen_jcc1(DisasContext *s, int cc_op, int b, int l1)
switch(jcc_op) {
case JCC_Z:
fast_jcc_z:
- switch(size) {
- case 0:
- tcg_gen_andi_tl(cpu_tmp0, cpu_cc_dst, 0xff);
- t0 = cpu_tmp0;
- break;
- case 1:
- tcg_gen_andi_tl(cpu_tmp0, cpu_cc_dst, 0xffff);
- t0 = cpu_tmp0;
- break;
-#ifdef TARGET_X86_64
- case 2:
- tcg_gen_andi_tl(cpu_tmp0, cpu_cc_dst, 0xffffffff);
- t0 = cpu_tmp0;
- break;
-#endif
- default:
- t0 = cpu_cc_dst;
- break;
- }
+ t0 = gen_ext_tl(cpu_tmp0, cpu_cc_dst, size, false);
tcg_gen_brcondi_tl(inv ? TCG_COND_NE : TCG_COND_EQ, t0, 0, l1);
break;
case JCC_S:
fast_jcc_s:
- switch(size) {
- case 0:
- tcg_gen_andi_tl(cpu_tmp0, cpu_cc_dst, 0x80);
- tcg_gen_brcondi_tl(inv ? TCG_COND_EQ : TCG_COND_NE, cpu_tmp0,
- 0, l1);
- break;
- case 1:
- tcg_gen_andi_tl(cpu_tmp0, cpu_cc_dst, 0x8000);
- tcg_gen_brcondi_tl(inv ? TCG_COND_EQ : TCG_COND_NE, cpu_tmp0,
- 0, l1);
- break;
-#ifdef TARGET_X86_64
- case 2:
- tcg_gen_andi_tl(cpu_tmp0, cpu_cc_dst, 0x80000000);
- tcg_gen_brcondi_tl(inv ? TCG_COND_EQ : TCG_COND_NE, cpu_tmp0,
- 0, l1);
- break;
-#endif
- default:
- tcg_gen_brcondi_tl(inv ? TCG_COND_GE : TCG_COND_LT, cpu_cc_dst,
- 0, l1);
- break;
- }
+ t0 = gen_ext_tl(cpu_tmp0, cpu_cc_dst, size, true);
+ tcg_gen_brcondi_tl(inv ? TCG_COND_GE : TCG_COND_LT, t0, 0, l1);
break;
-
+
case JCC_B:
cond = inv ? TCG_COND_GEU : TCG_COND_LTU;
goto fast_jcc_b;
@@ -1021,28 +989,8 @@ static inline void gen_jcc1(DisasContext *s, int cc_op, int b, int l1)
cond = inv ? TCG_COND_GTU : TCG_COND_LEU;
fast_jcc_b:
tcg_gen_add_tl(cpu_tmp4, cpu_cc_dst, cpu_cc_src);
- switch(size) {
- case 0:
- t0 = cpu_tmp0;
- tcg_gen_andi_tl(cpu_tmp4, cpu_tmp4, 0xff);
- tcg_gen_andi_tl(t0, cpu_cc_src, 0xff);
- break;
- case 1:
- t0 = cpu_tmp0;
- tcg_gen_andi_tl(cpu_tmp4, cpu_tmp4, 0xffff);
- tcg_gen_andi_tl(t0, cpu_cc_src, 0xffff);
- break;
-#ifdef TARGET_X86_64
- case 2:
- t0 = cpu_tmp0;
- tcg_gen_andi_tl(cpu_tmp4, cpu_tmp4, 0xffffffff);
- tcg_gen_andi_tl(t0, cpu_cc_src, 0xffffffff);
- break;
-#endif
- default:
- t0 = cpu_cc_src;
- break;
- }
+ gen_extu(size, cpu_tmp4);
+ t0 = gen_ext_tl(cpu_tmp0, cpu_cc_src, size, false);
tcg_gen_brcond_tl(cond, cpu_tmp4, t0, l1);
break;
@@ -1053,28 +1001,8 @@ static inline void gen_jcc1(DisasContext *s, int cc_op, int b, int l1)
cond = inv ? TCG_COND_GT : TCG_COND_LE;
fast_jcc_l:
tcg_gen_add_tl(cpu_tmp4, cpu_cc_dst, cpu_cc_src);
- switch(size) {
- case 0:
- t0 = cpu_tmp0;
- tcg_gen_ext8s_tl(cpu_tmp4, cpu_tmp4);
- tcg_gen_ext8s_tl(t0, cpu_cc_src);
- break;
- case 1:
- t0 = cpu_tmp0;
- tcg_gen_ext16s_tl(cpu_tmp4, cpu_tmp4);
- tcg_gen_ext16s_tl(t0, cpu_cc_src);
- break;
-#ifdef TARGET_X86_64
- case 2:
- t0 = cpu_tmp0;
- tcg_gen_ext32s_tl(cpu_tmp4, cpu_tmp4);
- tcg_gen_ext32s_tl(t0, cpu_cc_src);
- break;
-#endif
- default:
- t0 = cpu_cc_src;
- break;
- }
+ gen_exts(size, cpu_tmp4);
+ t0 = gen_ext_tl(cpu_tmp0, cpu_cc_src, size, true);
tcg_gen_brcond_tl(cond, cpu_tmp4, t0, l1);
break;