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[FAST486]

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(Addendum to r67320) ... and that goes for POP too...


svn path=/trunk/; revision=67321
This commit is contained in:
Aleksandar Andrejevic 2015-04-20 01:25:04 +00:00
parent 08077d0820
commit 399547ef48
1 changed files with 26 additions and 6 deletions
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32
reactos/lib/fast486/common.inl
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@ -408,7 +408,9 @@ Fast486StackPop(PFAST486_STATE State,
/* Read the value from SS:ESP */ /* Read the value from SS:ESP */
if (!Fast486ReadMemory(State, if (!Fast486ReadMemory(State,
FAST486_REG_SS, FAST486_REG_SS,
State->GeneralRegs[FAST486_REG_ESP].Long, State->SegmentRegs[FAST486_REG_SS].Size
? State->GeneralRegs[FAST486_REG_ESP].Long
: State->GeneralRegs[FAST486_REG_ESP].LowWord,
FALSE, FALSE,
&LongValue, &LongValue,
sizeof(LongValue))) sizeof(LongValue)))
@ -417,8 +419,16 @@ Fast486StackPop(PFAST486_STATE State,
return FALSE; return FALSE;
} }
/* Increment ESP by 4 */ if (State->SegmentRegs[FAST486_REG_SS].Size)
State->GeneralRegs[FAST486_REG_ESP].Long += sizeof(ULONG); {
/* Increment ESP by 4 */
State->GeneralRegs[FAST486_REG_ESP].Long += sizeof(ULONG);
}
else
{
/* Increment SP by 4 */
State->GeneralRegs[FAST486_REG_ESP].LowWord += sizeof(ULONG);
}
/* Store the value in the result */ /* Store the value in the result */
*Value = LongValue; *Value = LongValue;
@ -438,7 +448,9 @@ Fast486StackPop(PFAST486_STATE State,
/* Read the value from SS:SP */ /* Read the value from SS:SP */
if (!Fast486ReadMemory(State, if (!Fast486ReadMemory(State,
FAST486_REG_SS, FAST486_REG_SS,
State->GeneralRegs[FAST486_REG_ESP].LowWord, State->SegmentRegs[FAST486_REG_SS].Size
? State->GeneralRegs[FAST486_REG_ESP].Long
: State->GeneralRegs[FAST486_REG_ESP].LowWord,
FALSE, FALSE,
&ShortValue, &ShortValue,
sizeof(ShortValue))) sizeof(ShortValue)))
@ -447,8 +459,16 @@ Fast486StackPop(PFAST486_STATE State,
return FALSE; return FALSE;
} }
/* Increment SP by 2 */ if (State->SegmentRegs[FAST486_REG_SS].Size)
State->GeneralRegs[FAST486_REG_ESP].LowWord += sizeof(USHORT); {
/* Increment ESP by 2 */
State->GeneralRegs[FAST486_REG_ESP].Long += sizeof(USHORT);
}
else
{
/* Increment SP by 2 */
State->GeneralRegs[FAST486_REG_ESP].LowWord += sizeof(USHORT);
}
/* Store the value in the result */ /* Store the value in the result */
*Value = ShortValue; *Value = ShortValue;