Revision e17a36ce target-i386/translate.c
| b/target-i386/translate.c | ||
|---|---|---|
| 1615 | 1615 |
*offset_ptr = disp; |
| 1616 | 1616 |
} |
| 1617 | 1617 |
|
| 1618 |
static void gen_nop_modrm(DisasContext *s, int modrm) |
|
| 1619 |
{
|
|
| 1620 |
int mod, rm, base, code; |
|
| 1621 |
|
|
| 1622 |
mod = (modrm >> 6) & 3; |
|
| 1623 |
if (mod == 3) |
|
| 1624 |
return; |
|
| 1625 |
rm = modrm & 7; |
|
| 1626 |
|
|
| 1627 |
if (s->aflag) {
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|
| 1628 |
|
|
| 1629 |
base = rm; |
|
| 1630 |
|
|
| 1631 |
if (base == 4) {
|
|
| 1632 |
code = ldub_code(s->pc++); |
|
| 1633 |
base = (code & 7); |
|
| 1634 |
} |
|
| 1635 |
|
|
| 1636 |
switch (mod) {
|
|
| 1637 |
case 0: |
|
| 1638 |
if (base == 5) {
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|
| 1639 |
s->pc += 4; |
|
| 1640 |
} |
|
| 1641 |
break; |
|
| 1642 |
case 1: |
|
| 1643 |
s->pc++; |
|
| 1644 |
break; |
|
| 1645 |
default: |
|
| 1646 |
case 2: |
|
| 1647 |
s->pc += 4; |
|
| 1648 |
break; |
|
| 1649 |
} |
|
| 1650 |
} else {
|
|
| 1651 |
switch (mod) {
|
|
| 1652 |
case 0: |
|
| 1653 |
if (rm == 6) {
|
|
| 1654 |
s->pc += 2; |
|
| 1655 |
} |
|
| 1656 |
break; |
|
| 1657 |
case 1: |
|
| 1658 |
s->pc++; |
|
| 1659 |
break; |
|
| 1660 |
default: |
|
| 1661 |
case 2: |
|
| 1662 |
s->pc += 2; |
|
| 1663 |
break; |
|
| 1664 |
} |
|
| 1665 |
} |
|
| 1666 |
} |
|
| 1667 |
|
|
| 1618 | 1668 |
/* used for LEA and MOV AX, mem */ |
| 1619 | 1669 |
static void gen_add_A0_ds_seg(DisasContext *s) |
| 1620 | 1670 |
{
|
| ... | ... | |
| 5791 | 5841 |
gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 5792 | 5842 |
/* nothing more to do */ |
| 5793 | 5843 |
break; |
| 5794 |
default: |
|
| 5795 |
goto illegal_op; |
|
| 5844 |
default: /* nop (multi byte) */ |
|
| 5845 |
gen_nop_modrm(s, modrm); |
|
| 5846 |
break; |
|
| 5796 | 5847 |
} |
| 5797 | 5848 |
break; |
| 5849 |
case 0x119 ... 0x11f: /* nop (multi byte) */ |
|
| 5850 |
modrm = ldub_code(s->pc++); |
|
| 5851 |
gen_nop_modrm(s, modrm); |
|
| 5852 |
break; |
|
| 5798 | 5853 |
case 0x120: /* mov reg, crN */ |
| 5799 | 5854 |
case 0x122: /* mov crN, reg */ |
| 5800 | 5855 |
if (s->cpl != 0) {
|
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