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[FAST486]

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Fix more prefix handling.
Create the macros TOGGLE_ADSIZE and TOGGLE_OPSIZE to shorten the code.


svn path=/branches/ntvdm/; revision=60715
This commit is contained in:
Aleksandar Andrejevic 2013-10-19 23:43:53 +00:00
parent 97c51f53c4
commit 1a968e6f61
4 changed files with 131 additions and 698 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
lib/fast486/common.h
View file

@ -46,6 +46,14 @@
Fast486Exception(State, FAST486_EXCEPTION_UD);\
return FALSE;\
}
#define TOGGLE_OPSIZE(x) if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)\
{\
x = !x;\
}
#define TOGGLE_ADSIZE(x) if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)\
{\
x = !x;\
}
#define PAGE_ALIGN(x) ((x) & 0xFFFFF000)
#define PAGE_OFFSET(x) ((x) & 0x00000FFF)

39
lib/fast486/extraops.c
View file

@ -345,11 +345,7 @@ FAST486_OPCODE_HANDLER(Fast486ExtOpcodeCmpXchgByte)
UCHAR Source, Destination, Result;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -399,17 +395,8 @@ FAST486_OPCODE_HANDLER(Fast486ExtOpcodeCmpXchg)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
@ -500,18 +487,8 @@ FAST486_OPCODE_HANDLER(Fast486ExtOpcodeConditionalJmp)
LONG Offset = 0;
BOOLEAN Size = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
Size = !Size;
}
if (State->PrefixFlags & FAST486_PREFIX_LOCK)
{
/* Invalid prefix */
Fast486Exception(State, FAST486_EXCEPTION_UD);
return FALSE;
}
TOGGLE_OPSIZE(Size);
NO_LOCK_PREFIX();
/* Make sure this is the right instruction */
ASSERT((Opcode & 0xF0) == 0x80);
@ -620,11 +597,7 @@ FAST486_OPCODE_HANDLER(Fast486ExtOpcodeConditionalSet)
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
FAST486_MOD_REG_RM ModRegRm;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The OPSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
/* Get the operands */
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))

622
lib/fast486/opcodes.c
View file

File diff suppressed because it is too large Load diff

160
lib/fast486/opgroups.c
View file

@ -297,11 +297,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroup8082)
FAST486_MOD_REG_RM ModRegRm;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -342,17 +338,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroup81)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -426,17 +413,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroup83)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -505,17 +483,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroup8F)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -559,11 +528,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupC0)
FAST486_MOD_REG_RM ModRegRm;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -607,17 +572,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupC1)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -682,11 +638,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupC6)
FAST486_MOD_REG_RM ModRegRm;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -721,17 +673,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupC7)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -786,11 +729,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupD0)
FAST486_MOD_REG_RM ModRegRm;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -823,18 +762,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupD1)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -884,11 +813,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupD2)
FAST486_MOD_REG_RM ModRegRm;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -924,17 +849,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupD3)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -992,11 +908,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupF6)
FAST486_MOD_REG_RM ModRegRm;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -1131,17 +1043,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupF7)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -1386,11 +1289,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupFE)
FAST486_MOD_REG_RM ModRegRm;
BOOLEAN AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{
@ -1446,17 +1345,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeGroupFF)
OperandSize = AddressSize = State->SegmentRegs[FAST486_REG_CS].Size;
if (State->PrefixFlags & FAST486_PREFIX_OPSIZE)
{
/* The OPSIZE prefix toggles the size */
OperandSize = !OperandSize;
}
if (State->PrefixFlags & FAST486_PREFIX_ADSIZE)
{
/* The ADSIZE prefix toggles the size */
AddressSize = !AddressSize;
}
TOGGLE_OPSIZE(OperandSize);
TOGGLE_ADSIZE(AddressSize);
if (!Fast486ParseModRegRm(State, AddressSize, &ModRegRm))
{