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ntoskrnl.exe: Support 'xor Ev, Gv' opcode for x86_64. 

Signed-off-by: Paul Gofman <pgofman@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
feature/deterministic
Paul Gofman 2020-05-22 15:37:51 +03:00 committed by Alexandre Julliard
parent e7778dd9f9
commit 42ce4910a4
1 changed files with 13 additions and 0 deletions
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13
dlls/ntoskrnl.exe/instr.c
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@ -39,6 +39,7 @@ enum instr_op
{
INSTR_OP_MOV,
INSTR_OP_OR,
INSTR_OP_XOR,
};
#ifdef __i386__
@ -526,6 +527,10 @@ static void store_reg_word( CONTEXT *context, BYTE regmodrm, const BYTE *addr, i
for (i = 0; i < op_size; ++i)
reg[i] |= addr[i];
break;
case INSTR_OP_XOR:
for (i = 0; i < op_size; ++i)
reg[i] ^= addr[i];
break;
}
}
@ -544,6 +549,9 @@ static void store_reg_byte( CONTEXT *context, BYTE regmodrm, const BYTE *addr, i
case INSTR_OP_OR:
*reg |= *addr;
break;
case INSTR_OP_XOR:
*reg ^= *addr;
break;
}
}
@ -838,6 +846,7 @@ static DWORD emulate_instruction( EXCEPTION_RECORD *rec, CONTEXT *context )
case 0x8a: /* mov Eb, Gb */
case 0x8b: /* mov Ev, Gv */
case 0x0b: /* or Ev, Gv */
case 0x33: /* xor Ev, Gv */
{
BYTE *data = INSTR_GetOperandAddr( context, instr + 1, prefixlen + 1, long_addr,
rex, segprefix, &len );
@ -861,6 +870,10 @@ static DWORD emulate_instruction( EXCEPTION_RECORD *rec, CONTEXT *context )
store_reg_word( context, instr[1], wine_user_shared_data + offset,
long_op, rex, INSTR_OP_OR );
break;
case 0x33:
store_reg_word( context, instr[1], wine_user_shared_data + offset,
long_op, rex, INSTR_OP_XOR );
break;
}
context->Rip += prefixlen + len + 1;
return ExceptionContinueExecution;