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

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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24
target-i386/helper.c
View File

@ -3138,13 +3138,13 @@ void helper_rdmsr(void)
}
#endif
uint32_t helper_lsl(uint32_t selector)
target_ulong helper_lsl(target_ulong selector1)
{
unsigned int limit;
uint32_t e1, e2, eflags;
uint32_t e1, e2, eflags, selector;
int rpl, dpl, cpl, type;
selector &= 0xffff;
selector = selector1 & 0xffff;
eflags = cc_table[CC_OP].compute_all();
if (load_segment(&e1, &e2, selector) != 0)
goto fail;
@ -3181,12 +3181,12 @@ uint32_t helper_lsl(uint32_t selector)
return limit;
}
uint32_t helper_lar(uint32_t selector)
target_ulong helper_lar(target_ulong selector1)
{
uint32_t e1, e2, eflags;
uint32_t e1, e2, eflags, selector;
int rpl, dpl, cpl, type;
selector &= 0xffff;
selector = selector1 & 0xffff;
eflags = cc_table[CC_OP].compute_all();
if ((selector & 0xfffc) == 0)
goto fail;
@ -3227,12 +3227,12 @@ uint32_t helper_lar(uint32_t selector)
return e2 & 0x00f0ff00;
}
void helper_verr(uint32_t selector)
void helper_verr(target_ulong selector1)
{
uint32_t e1, e2, eflags;
uint32_t e1, e2, eflags, selector;
int rpl, dpl, cpl;
selector &= 0xffff;
selector = selector1 & 0xffff;
eflags = cc_table[CC_OP].compute_all();
if ((selector & 0xfffc) == 0)
goto fail;
@ -3260,12 +3260,12 @@ void helper_verr(uint32_t selector)
CC_SRC = eflags | CC_Z;
}
void helper_verw(uint32_t selector)
void helper_verw(target_ulong selector1)
{
uint32_t e1, e2, eflags;
uint32_t e1, e2, eflags, selector;
int rpl, dpl, cpl;
selector &= 0xffff;
selector = selector1 & 0xffff;
eflags = cc_table[CC_OP].compute_all();
if ((selector & 0xfffc) == 0)
goto fail;

8
target-i386/helper.h
View File

@ -23,10 +23,10 @@ void helper_aas(void);
void helper_daa(void);
void helper_das(void);
uint32_t helper_lsl(uint32_t selector);
uint32_t helper_lar(uint32_t selector);
void helper_verr(uint32_t selector);
void helper_verw(uint32_t selector);
target_ulong helper_lsl(target_ulong selector1);
target_ulong helper_lar(target_ulong selector1);
void helper_verr(target_ulong selector1);
void helper_verw(target_ulong selector1);
void helper_lldt(int selector);
void helper_ltr(int selector);
void helper_load_seg(int seg_reg, int selector);

28
target-i386/op.c
View File

@ -167,34 +167,6 @@ void OPPROTO op_movl_T0_seg(void)
T0 = env->segs[PARAM1].selector;
}
void OPPROTO op_lsl(void)
{
uint32_t val;
val = helper_lsl(T0);
if (CC_SRC & CC_Z)
T1 = val;
FORCE_RET();
}
void OPPROTO op_lar(void)
{
uint32_t val;
val = helper_lar(T0);
if (CC_SRC & CC_Z)
T1 = val;
FORCE_RET();
}
void OPPROTO op_verr(void)
{
helper_verr(T0);
}
void OPPROTO op_verw(void)
{
helper_verw(T0);
}
void OPPROTO op_arpl(void)
{
if ((T0 & 3) < (T1 & 3)) {

40
target-i386/translate.c
View File

@ -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++);