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Fixed memory corruption inside disasm module !

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This commit is contained in:
Stanislav Shwartsman 2009-01-13 22:40:16 +00:00
parent 0ec93b8586
commit 5cc5781a20
1 changed files with 4 additions and 4 deletions

8
bochs/disasm/dis_decode.cc

@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: dis_decode.cc,v 1.47 2008-06-11 21:05:38 sshwarts Exp $
// $Id: dis_decode.cc,v 1.48 2009-01-13 22:40:16 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
#include <stdio.h>
@ -202,7 +202,7 @@ x86_insn disassembler::decode(bx_bool is_32, bx_bool is_64, bx_address base, bx_
{
switch(attr) {
case _GROUPN:
entry = &(OPCODE_TABLE(entry)[insn.nnn]);
entry = &(OPCODE_TABLE(entry)[insn.nnn & 7]);
break;
case _GRPSSE:
@ -217,13 +217,13 @@ x86_insn disassembler::decode(bx_bool is_32, bx_bool is_64, bx_address base, bx_
break;
case _GRPRM:
entry = &(OPCODE_TABLE(entry)[insn.rm]);
entry = &(OPCODE_TABLE(entry)[insn.rm & 7]);
break;
case _GRPFP:
if(insn.mod != 3)
{
entry = &(OPCODE_TABLE(entry)[insn.nnn]);
entry = &(OPCODE_TABLE(entry)[insn.nnn & 7]);
} else {
int index = (insn.b1-0xD8)*64 + (insn.modrm & 0x3f);
entry = &(BxDisasmOpcodeInfoFP[index]);