Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-10-06 01:13:38 +00:00
Code Issues Packages Projects Releases Wiki Activity

[FAST486]

Browse source 
Fix XLAT and OUTS.


svn path=/trunk/; revision=64374
This commit is contained in:
Aleksandar Andrejevic 2014-09-28 19:07:27 +00:00
parent f9fea3cd4d
commit d3e18a6f2e
1 changed files with 16 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
reactos/lib/fast486/opcodes.c
View file

@ -4956,7 +4956,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeXlat)
/* Read a byte from DS:[(E)BX + AL] */
if (!Fast486ReadMemory(State,
FAST486_REG_DS,
(State->PrefixFlags & FAST486_PREFIX_SEG)
? State->SegmentOverride : FAST486_REG_DS,
(AddressSize ? State->GeneralRegs[FAST486_REG_EBX].Long
: State->GeneralRegs[FAST486_REG_EBX].LowWord)
+ State->GeneralRegs[FAST486_REG_EAX].LowByte,
@ -6214,8 +6215,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOuts)
if (!AddressSize)
{
ULONG MaxBytes = State->Flags.Df
? (ULONG)State->GeneralRegs[FAST486_REG_EDI].LowWord
: (0x10000 - (ULONG)State->GeneralRegs[FAST486_REG_EDI].LowWord);
? (ULONG)State->GeneralRegs[FAST486_REG_ESI].LowWord
: (0x10000 - (ULONG)State->GeneralRegs[FAST486_REG_ESI].LowWord);
Processed = min(Processed, MaxBytes / DataSize);
if (Processed == 0) Processed = 1;
@ -6223,9 +6224,10 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOuts)
/* Read from memory */
if (!Fast486ReadMemory(State,
FAST486_REG_ES,
AddressSize ? State->GeneralRegs[FAST486_REG_EDI].Long
: State->GeneralRegs[FAST486_REG_EDI].LowWord,
(State->PrefixFlags & FAST486_PREFIX_SEG)
? State->SegmentOverride : FAST486_REG_DS,
AddressSize ? State->GeneralRegs[FAST486_REG_ESI].Long
: State->GeneralRegs[FAST486_REG_ESI].LowWord,
FALSE,
Block,
Processed * DataSize))
@ -6242,9 +6244,9 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOuts)
{
ULONG i, j;
/* Reduce EDI by the number of bytes to transfer */
if (AddressSize) State->GeneralRegs[FAST486_REG_EDI].Long -= Processed * DataSize;
else State->GeneralRegs[FAST486_REG_EDI].LowWord -= Processed * DataSize;
/* Reduce ESI by the number of bytes to transfer */
if (AddressSize) State->GeneralRegs[FAST486_REG_ESI].Long -= Processed * DataSize;
else State->GeneralRegs[FAST486_REG_ESI].LowWord -= Processed * DataSize;
/* Reverse the block data */
for (i = 0; i < Processed / 2; i++)
@ -6268,9 +6270,9 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOuts)
if (!State->Flags.Df)
{
/* Increase EDI by the number of bytes transfered */
if (AddressSize) State->GeneralRegs[FAST486_REG_EDI].Long += Processed * DataSize;
else State->GeneralRegs[FAST486_REG_EDI].LowWord += Processed * DataSize;
/* Increase ESI by the number of bytes transfered */
if (AddressSize) State->GeneralRegs[FAST486_REG_ESI].Long += Processed * DataSize;
else State->GeneralRegs[FAST486_REG_ESI].LowWord += Processed * DataSize;
}
/* Reduce the total count by the number processed in this run */
@ -6287,7 +6289,8 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeOuts)
/* Read from the source operand */
if (!Fast486ReadMemory(State,
FAST486_REG_DS,
(State->PrefixFlags & FAST486_PREFIX_SEG)
? State->SegmentOverride : FAST486_REG_DS,
AddressSize ? State->GeneralRegs[FAST486_REG_ESI].Long
: State->GeneralRegs[FAST486_REG_ESI].LowWord,
FALSE,