Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-07-21 19:58:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

[SOFT386]

Browse source 
Implement the (undocumented) opcode SALC.


svn path=/branches/ntvdm/; revision=60492
This commit is contained in:
Aleksandar Andrejevic 2013-10-01 15:02:07 +00:00
parent 49616f8975
commit c2e98bca7f
2 changed files with 20 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
lib/soft386/opcodes.c
View file

@ -253,7 +253,7 @@ Soft386OpcodeHandlers[SOFT386_NUM_OPCODE_HANDLERS] =
Soft386OpcodeGroupD3,
Soft386OpcodeAam,
Soft386OpcodeAad,
NULL, // TODO: OPCODE 0xD6 NOT SUPPORTED
Soft386OpcodeSalc,
Soft386OpcodeXlat,
NULL, // TODO: OPCODE 0xD8 NOT SUPPORTED
NULL, // TODO: OPCODE 0xD9 NOT SUPPORTED
@ -5588,3 +5588,21 @@ SOFT386_OPCODE_HANDLER(Soft386OpcodeMovOffsetEax)
sizeof(USHORT));
}
}
SOFT386_OPCODE_HANDLER(Soft386OpcodeSalc)
{
/* Make sure this is the right instruction */
ASSERT(Opcode == 0xD6);
if (State->PrefixFlags & SOFT386_PREFIX_LOCK)
{
/* Invalid prefix */
Soft386Exception(State, SOFT386_EXCEPTION_UD);
return FALSE;
}
/* Set all the bits of AL to CF */
State->GeneralRegs[SOFT386_REG_EAX].LowByte = State->Flags.Cf ? 0xFF : 0x00;
return TRUE;
}

1
lib/soft386/opcodes.h
View file

@ -147,5 +147,6 @@ SOFT386_OPCODE_HANDLER(Soft386OpcodeMovAlOffset);
SOFT386_OPCODE_HANDLER(Soft386OpcodeMovEaxOffset);
SOFT386_OPCODE_HANDLER(Soft386OpcodeMovOffsetAl);
SOFT386_OPCODE_HANDLER(Soft386OpcodeMovOffsetEax);
SOFT386_OPCODE_HANDLER(Soft386OpcodeSalc);
#endif // _OPCODES_H_