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converted LSL/LAR/VERW/VERR to TCG - force 16 bit memory access for LSL/LAR

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4513 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2008-05-21 16:25:27 +00:00
parent e5097dc8e3
commit cec6843e87
4 changed files with 39 additions and 61 deletions
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40
target-i386/translate.c
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@ -6333,9 +6333,9 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
if (op == 4)
gen_op_verr();
tcg_gen_helper_0_1(helper_verr, cpu_T[0]);
else
gen_op_verw();
tcg_gen_helper_0_1(helper_verw, cpu_T[0]);
s->cc_op = CC_OP_EFLAGS;
break;
default:
@ -6606,21 +6606,27 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
break;
case 0x102: /* lar */
case 0x103: /* lsl */
if (!s->pe || s->vm86)
goto illegal_op;
ot = dflag ? OT_LONG : OT_WORD;
modrm = ldub_code(s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
gen_ldst_modrm(s, modrm, ot, OR_TMP0, 0);
gen_op_mov_TN_reg(ot, 1, reg);
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
if (b == 0x102)
gen_op_lar();
else
gen_op_lsl();
s->cc_op = CC_OP_EFLAGS;
gen_op_mov_reg_T1(ot, reg);
{
int label1;
if (!s->pe || s->vm86)
goto illegal_op;
ot = dflag ? OT_LONG : OT_WORD;
modrm = ldub_code(s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0);
if (s->cc_op != CC_OP_DYNAMIC)
gen_op_set_cc_op(s->cc_op);
if (b == 0x102)
tcg_gen_helper_1_1(helper_lar, cpu_T[0], cpu_T[0]);
else
tcg_gen_helper_1_1(helper_lsl, cpu_T[0], cpu_T[0]);
tcg_gen_andi_tl(cpu_tmp0, cpu_cc_src, CC_Z);
label1 = gen_new_label();
tcg_gen_brcond_tl(TCG_COND_EQ, cpu_tmp0, tcg_const_tl(0), label1);
gen_op_mov_reg_T0(ot, reg);
gen_set_label(label1);
s->cc_op = CC_OP_EFLAGS;
}
break;
case 0x118:
modrm = ldub_code(s->pc++);