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[FAST486]

Browse source 
Fix prefix handling.
Create a macro NO_LOCK_PREFIX to shorten the code.


svn path=/branches/ntvdm/; revision=60714
This commit is contained in:
Aleksandar Andrejevic 2013-10-19 23:03:40 +00:00
parent 75a0ca07a1
commit 97c51f53c4
2 changed files with 44 additions and 399 deletions
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6
lib/fast486/common.h
View file

@ -41,6 +41,12 @@
#define GET_SEGMENT_INDEX(s) ((s) & 0xFFF8)
#define EXCEPTION_HAS_ERROR_CODE(x) (((x) == 8) || ((x) >= 10 && (x) <= 14))
#define NO_LOCK_PREFIX() if (State->PrefixFlags & FAST486_PREFIX_LOCK)\
{\
Fast486Exception(State, FAST486_EXCEPTION_UD);\
return FALSE;\
}
#define PAGE_ALIGN(x) ((x) & 0xFFFFF000)
#define PAGE_OFFSET(x) ((x) & 0x00000FFF)

437
lib/fast486/opcodes.c
View file

@ -472,12 +472,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeIncrement)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xF8) == 0x40);
@ -516,12 +511,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeDecrement)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xF8) == 0x48);
@ -551,12 +541,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeDecrement)
FAST486_OPCODE_HANDLER(Fast486OpcodePushReg)
{
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xF8) == 0x50);
@ -576,12 +561,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodePopReg)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xF8) == 0x58);
@ -626,12 +606,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeExchangeEax)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xF8) == 0x90);
@ -983,12 +958,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeIn)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Opcode == 0xE5)
{
@ -1083,12 +1053,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOut)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Opcode == 0xE7)
{
@ -1163,12 +1128,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeMovRegImm)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Size)
{
@ -1318,17 +1278,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAddModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -1447,12 +1396,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAddEax)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x05);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -1530,15 +1474,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOrByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -1595,17 +1530,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOrModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -1718,12 +1642,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOrEax)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x0D);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -1797,15 +1716,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAndByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -1862,17 +1772,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAndModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -1949,12 +1848,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAndAl)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x24);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (!Fast486FetchByte(State, &SecondValue))
{
@ -1985,12 +1879,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAndEax)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x25);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -2064,15 +1953,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeXorByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -2129,17 +2009,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeXorModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -2252,12 +2121,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeXorEax)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x35);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -2331,15 +2195,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeTestByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -2392,17 +2247,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeTestModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -2504,12 +2348,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeTestEax)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0xA9);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -2578,15 +2417,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeXchgByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -2649,17 +2479,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeXchgModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -2779,15 +2598,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAdcByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -2850,17 +2660,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAdcModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -2992,12 +2791,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAdcEax)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x15);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -3311,12 +3105,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeSbbEax)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x1D);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -3451,15 +3240,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCmpSubByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -3536,17 +3316,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCmpSubModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -3705,12 +3474,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCmpSubEax)
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xEF) == 0x2D);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -3891,12 +3655,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodePushAll)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Push all the registers in order */
for (i = 0; i < FAST486_NUM_GEN_REGS; i++)
@ -3940,12 +3699,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodePopAll)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Pop all the registers in reverse order */
for (i = FAST486_NUM_GEN_REGS - 1; i >= 0; i--)
@ -4042,12 +3796,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodePushImm)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0x68);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -4237,15 +3986,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeMovByteModrm)
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
else if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -4296,17 +4036,6 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeMovModrm)
OperandSize = !OperandSize;
}
if (State->PrefixFlags
& ~(FAST486_PREFIX_ADSIZE
| FAST486_PREFIX_OPSIZE
| FAST486_PREFIX_SEG
| FAST486_PREFIX_LOCK))
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -4544,12 +4273,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCwde)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Size)
{
@ -4585,12 +4309,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCdq)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Size)
{
@ -4625,12 +4344,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCallAbs)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Fetch the offset */
if (Size)
@ -4697,12 +4411,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodePushFlags)
{
BOOLEAN Size = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -4729,12 +4438,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodePopFlags)
INT Cpl = Fast486GetCurrentPrivLevel(State);
ULONG NewFlags;
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -4892,12 +4596,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeRet)
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xFE) == 0xC2);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -5035,12 +4734,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeEnter)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0xC8);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -5104,12 +4798,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeLeave)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0xC9);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -5158,12 +4847,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeRetFar)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Opcode == 0xCA)
{
@ -5281,12 +4965,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeIret)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0xCF);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -5495,12 +5174,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAam)
UCHAR Base;
UCHAR Value = State->GeneralRegs[FAST486_REG_EAX].LowByte;
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Fetch the base */
if (!Fast486FetchByte(State, &Base))
@ -5534,12 +5208,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeAad)
UCHAR Base;
UCHAR Value = State->GeneralRegs[FAST486_REG_EAX].LowByte;
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Fetch the base */
if (!Fast486FetchByte(State, &Base))
@ -5601,12 +5270,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeLoop)
/* Make sure this is the right instruction */
ASSERT((Opcode >= 0xE0) && (Opcode <= 0xE2));
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -5654,12 +5318,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeJecxz)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0xE3);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
@ -5699,12 +5358,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCall)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Size)
{
@ -5765,12 +5419,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeJmp)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
if (Size)
{
@ -5819,12 +5468,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeJmpAbs)
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Fetch the offset */
if (Size)
@ -6063,12 +5707,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeSalc)
/* Make sure this is the right instruction */
ASSERT(Opcode == 0xD6);
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
NO_LOCK_PREFIX();
/* Set all the bits of AL to CF */
State->GeneralRegs[FAST486_REG_EAX].LowByte = State->Flags.Cf ? 0xFF : 0x00;