tstDisasm-2.cpp revision 92473d1de9ab080ff886ad61a4d908f7c3429608
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/* $Id$ */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/** @file
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Testcase - Generic Disassembler Tool.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Copyright (C) 2008 Sun Microsystems, Inc.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * available from http://www.virtualbox.org. This file is free software;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * you can redistribute it and/or modify it under the terms of the GNU
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * General Public License (GPL) as published by the Free Software
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * additional information or have any questions.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/*******************************************************************************
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync* Header Files *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync*******************************************************************************/
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <VBox/dis.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <iprt/stream.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <iprt/getopt.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <iprt/file.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <iprt/string.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <iprt/runtime.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <VBox/err.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <iprt/ctype.h>
384478d3896257fbce9ceb8c01e74040b969e6d7vboxsync
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync/*******************************************************************************
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync* Structures and Typedefs *
384478d3896257fbce9ceb8c01e74040b969e6d7vboxsync*******************************************************************************/
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsynctypedef enum { kAsmStyle_Default, kAsmStyle_yasm, kAsmStyle_masm, kAsmStyle_gas, kAsmStyle_invalid } ASMSTYLE;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsynctypedef enum { kUndefOp_Fail, kUndefOp_All, kUndefOp_DefineByte, kUndefOp_End } UNDEFOPHANDLING;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsynctypedef struct MYDISSTATE
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync{
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync DISCPUSTATE Cpu;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uint64_t uAddress; /**< The current instruction address. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uint8_t *pbInstr; /**< The current instruction (pointer). */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uint32_t cbInstr; /**< The size of the current instruction. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync bool fUndefOp; /**< Whether the current instruction is really an undefined opcode.*/
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync UNDEFOPHANDLING enmUndefOp; /**< How to treat undefined opcodes. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync int rc; /**< Set if we hit EOF. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync size_t cbLeft; /**< The number of bytes left. (read) */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uint8_t *pbNext; /**< The next byte. (read) */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uint64_t uNextAddr; /**< The address of the next byte. (read) */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync char szLine[256]; /**< The disassembler text output. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync} MYDISSTATE;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsynctypedef MYDISSTATE *PMYDISSTATE;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync/**
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync * Default style.
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync *
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync * @param pState The disassembler state.
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync */
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsyncstatic void MyDisasDefaultFormatter(PMYDISSTATE pState)
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync{
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync RTPrintf("%s", pState->szLine);
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync}
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync/**
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync * Yasm style.
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync *
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync * @param pState The disassembler state.
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync */
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsyncstatic void MyDisasYasmFormatter(PMYDISSTATE pState)
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync{
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync char szTmp[256];
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync#if 0
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync /* a very quick hack. */
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync strcpy(szTmp, RTStrStripL(strchr(pState->szLine, ':') + 1));
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync char *psz = strrchr(szTmp, '[');
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync *psz = '\0';
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync RTStrStripR(szTmp);
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync psz = strstr(szTmp, " ptr ");
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync if (psz)
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync memset(psz, ' ', 5);
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync char *pszEnd = strchr(szTmp, '\0');
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync while (pszEnd - &szTmp[0] < 71)
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync *pszEnd++ = ' ';
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync *pszEnd = '\0';
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync#else
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync size_t cch = DISFormatYasmEx(&pState->Cpu, szTmp, sizeof(szTmp),
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync DIS_FMT_FLAGS_STRICT | DIS_FMT_FLAGS_ADDR_RIGHT | DIS_FMT_FLAGS_ADDR_COMMENT
4a9af9a8062589b741444d717d2dd1ed22b0f583vboxsync | DIS_FMT_FLAGS_BYTES_RIGHT | DIS_FMT_FLAGS_BYTES_COMMENT | DIS_FMT_FLAGS_BYTES_SPACED,
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync NULL, NULL);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync Assert(cch < sizeof(szTmp));
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync while (cch < 71)
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync szTmp[cch++] = ' ';
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync szTmp[cch] = '\0';
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#endif
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync RTPrintf(" %s ; %08llu %s", szTmp, pState->uAddress, pState->szLine);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync}
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync/**
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync * Checks if the encoding of the current instruction is something
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * we can never get the assembler to produce.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * @returns true if it's odd, false if it isn't.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * @param pCpu The disassembler output.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsyncstatic bool MyDisasYasmFormatterIsOddEncoding(PMYDISSTATE pState)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync{
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Mod rm + SIB: Check for duplicate EBP encodings that yasm won't use for very good reasons.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( pState->Cpu.addrmode != CPUMODE_16BIT ///@todo correct?
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.ModRM.Bits.Rm == 4
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync && pState->Cpu.ModRM.Bits.Mod != 3)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* No scaled index SIB (index=4), except for ESP. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( pState->Cpu.SIB.Bits.Index == 4
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.SIB.Bits.Base != 4)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* EBP + displacement */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( pState->Cpu.ModRM.Bits.Mod != 0
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.SIB.Bits.Base == 5
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.SIB.Bits.Scale == 0)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Seems to be an instruction alias here, but I cannot find any docs on it... hrmpf!
0593640ab087e5bf747a2576b1752a2046be83aavboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( pState->Cpu.pCurInstr->opcode == OP_SHL
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.ModRM.Bits.Reg == 6)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Check for multiple prefixes of the same kind.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uint32_t fPrefixes = 0;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync for (uint8_t const *pu8 = pState->pbInstr;; pu8++)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uint32_t f;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync switch (*pu8)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0xf0:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync f = PREFIX_LOCK;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0xf2:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0xf3:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync f = PREFIX_REP; /* yes, both */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0x2e:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0x3e:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0x26:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0x36:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0x64:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 0x65:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync f = PREFIX_SEG;
0593640ab087e5bf747a2576b1752a2046be83aavboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case 0x66:
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync f = PREFIX_OPSIZE;
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync break;
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync case 0x67:
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync f = PREFIX_ADDRSIZE;
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync break;
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync case 0x40: case 0x41: case 0x42: case 0x43: case 0x44: case 0x45: case 0x46: case 0x47:
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync case 0x48: case 0x49: case 0x4a: case 0x4b: case 0x4c: case 0x4d: case 0x4e: case 0x4f:
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync f = pState->Cpu.mode == CPUMODE_64BIT ? PREFIX_REX : 0;
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync break;
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync
7b4ea63789001468ec3662bdfcd6432bf89095dfvboxsync default:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync f = 0;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync if (!f)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break; /* done */
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync if (fPrefixes & f)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync fPrefixes |= f;
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync /* segment overrides are fun */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (fPrefixes & PREFIX_SEG)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* no effective address which it may apply to. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync Assert((pState->Cpu.prefix & PREFIX_SEG) || pState->Cpu.mode == CPUMODE_64BIT);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( !DIS_IS_EFFECTIVE_ADDR(pState->Cpu.param1.flags)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && !DIS_IS_EFFECTIVE_ADDR(pState->Cpu.param2.flags)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && !DIS_IS_EFFECTIVE_ADDR(pState->Cpu.param3.flags))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* fixed register + addr override doesn't go down all that well. */
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync if (fPrefixes & PREFIX_ADDRSIZE)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync Assert(pState->Cpu.prefix & PREFIX_ADDRSIZE);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( pState->Cpu.pCurInstr->param3 == OP_PARM_NONE
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.pCurInstr->param2 == OP_PARM_NONE
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && ( pState->Cpu.pCurInstr->param1 >= OP_PARM_REG_GEN32_START
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.pCurInstr->param1 <= OP_PARM_REG_GEN32_END))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* Almost all prefixes are bad. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (fPrefixes)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync switch (pState->Cpu.pCurInstr->opcode)
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* nop w/ prefix(es). */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_NOP:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JMP:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync if ( pState->Cpu.pCurInstr->param1 != OP_PARM_Jb
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync && pState->Cpu.pCurInstr->param1 != OP_PARM_Jv)
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync break;
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync /* fall thru */
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_JO:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_JNO:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_JC:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_JNC:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_JE:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JNE:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_JBE:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_JNBE:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JS:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JNS:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JP:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JNP:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JL:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JNL:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JLE:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_JNLE:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /** @todo branch hinting 0x2e/0x3e... */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* All but the segment prefix is bad news. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (fPrefixes & ~PREFIX_SEG)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync switch (pState->Cpu.pCurInstr->opcode)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
0593640ab087e5bf747a2576b1752a2046be83aavboxsync case OP_POP:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_PUSH:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( pState->Cpu.pCurInstr->param1 >= OP_PARM_REG_SEG_START
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.pCurInstr->param1 <= OP_PARM_REG_SEG_END)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( (fPrefixes & ~PREFIX_OPSIZE)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.pCurInstr->param1 >= OP_PARM_REG_GEN32_START
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.pCurInstr->param1 <= OP_PARM_REG_GEN32_END)
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_POPA:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_POPF:
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_PUSHA:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_PUSHF:
329df9696e709dc71611f504a4774f323545be0avboxsync if (fPrefixes & ~PREFIX_OPSIZE)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
329df9696e709dc71611f504a4774f323545be0avboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /* Implicit 8-bit register instructions doesn't mix with operand size. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( (fPrefixes & PREFIX_OPSIZE)
329df9696e709dc71611f504a4774f323545be0avboxsync && ( ( pState->Cpu.pCurInstr->param1 == OP_PARM_Gb /* r8 */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.pCurInstr->param2 == OP_PARM_Eb /* r8/mem8 */)
329df9696e709dc71611f504a4774f323545be0avboxsync || ( pState->Cpu.pCurInstr->param2 == OP_PARM_Gb /* r8 */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && pState->Cpu.pCurInstr->param1 == OP_PARM_Eb /* r8/mem8 */))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync )
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync switch (pState->Cpu.pCurInstr->opcode)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_ADD:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_OR:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_ADC:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_SBB:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_AND:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_SUB:
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_XOR:
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_CMP:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync return true;
329df9696e709dc71611f504a4774f323545be0avboxsync default:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync break;
329df9696e709dc71611f504a4774f323545be0avboxsync }
329df9696e709dc71611f504a4774f323545be0avboxsync }
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync
329df9696e709dc71611f504a4774f323545be0avboxsync
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync /*
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync * Check for the version of xyz reg,reg instruction that the assembler doesn't use.
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync *
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync * For example:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync * expected: 1aee sbb ch, dh ; SBB r8, r/m8
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync * yasm: 18F5 sbb ch, dh ; SBB r/m8, r8
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync */
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync if (pState->Cpu.ModRM.Bits.Mod == 3 /* reg,reg */)
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync {
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync switch (pState->Cpu.pCurInstr->opcode)
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync {
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync case OP_ADD:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync case OP_OR:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync case OP_ADC:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync case OP_SBB:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync case OP_AND:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync case OP_SUB:
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_XOR:
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_CMP:
329df9696e709dc71611f504a4774f323545be0avboxsync if ( ( pState->Cpu.pCurInstr->param1 == OP_PARM_Gb /* r8 */
329df9696e709dc71611f504a4774f323545be0avboxsync && pState->Cpu.pCurInstr->param2 == OP_PARM_Eb /* r8/mem8 */)
329df9696e709dc71611f504a4774f323545be0avboxsync || ( pState->Cpu.pCurInstr->param1 == OP_PARM_Gv /* rX */
329df9696e709dc71611f504a4774f323545be0avboxsync && pState->Cpu.pCurInstr->param2 == OP_PARM_Ev /* rX/memX */))
329df9696e709dc71611f504a4774f323545be0avboxsync return true;
329df9696e709dc71611f504a4774f323545be0avboxsync
329df9696e709dc71611f504a4774f323545be0avboxsync /* 82 (see table A-6). */
329df9696e709dc71611f504a4774f323545be0avboxsync if (pState->Cpu.opcode == 0x82)
329df9696e709dc71611f504a4774f323545be0avboxsync return true;
329df9696e709dc71611f504a4774f323545be0avboxsync break;
329df9696e709dc71611f504a4774f323545be0avboxsync
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync /* ff /0, fe /0, ff /1, fe /0 */
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_DEC:
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_INC:
329df9696e709dc71611f504a4774f323545be0avboxsync return true;
329df9696e709dc71611f504a4774f323545be0avboxsync
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_POP:
329df9696e709dc71611f504a4774f323545be0avboxsync case OP_PUSH:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync Assert(pState->Cpu.opcode == 0x8f);
09f4b412099acda62997fd82c8608075c453b3ebvboxsync return true;
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync default:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync break;
09f4b412099acda62997fd82c8608075c453b3ebvboxsync }
09f4b412099acda62997fd82c8608075c453b3ebvboxsync }
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync /* shl eax,1 will be assembled to the form without the immediate byte. */
09f4b412099acda62997fd82c8608075c453b3ebvboxsync if ( pState->Cpu.pCurInstr->param2 == OP_PARM_Ib
09f4b412099acda62997fd82c8608075c453b3ebvboxsync && (uint8_t)pState->Cpu.param2.parval == 1)
09f4b412099acda62997fd82c8608075c453b3ebvboxsync {
09f4b412099acda62997fd82c8608075c453b3ebvboxsync switch (pState->Cpu.pCurInstr->opcode)
09f4b412099acda62997fd82c8608075c453b3ebvboxsync {
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SHL:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SHR:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SAR:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_RCL:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_RCR:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_ROL:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync case OP_ROR:
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync return true;
09f4b412099acda62997fd82c8608075c453b3ebvboxsync }
09f4b412099acda62997fd82c8608075c453b3ebvboxsync }
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync /* And some more - see table A-6. */
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync if (pState->Cpu.opcode == 0x82)
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync {
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync switch (pState->Cpu.pCurInstr->opcode)
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync {
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_ADD:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_OR:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_ADC:
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync case OP_SBB:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_AND:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SUB:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_XOR:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_CMP:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync return true;
09f4b412099acda62997fd82c8608075c453b3ebvboxsync break;
09f4b412099acda62997fd82c8608075c453b3ebvboxsync }
09f4b412099acda62997fd82c8608075c453b3ebvboxsync }
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync /* check for REX.X = 1 without SIB. */
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync /* Yasm encodes setnbe al with /2 instead of /0 like the AMD manual
09f4b412099acda62997fd82c8608075c453b3ebvboxsync says (intel doesn't appear to care). */
09f4b412099acda62997fd82c8608075c453b3ebvboxsync switch (pState->Cpu.pCurInstr->opcode)
09f4b412099acda62997fd82c8608075c453b3ebvboxsync {
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETO:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNO:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETC:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNC:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETE:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNE:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETBE:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNBE:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETS:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNS:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETP:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNP:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETL:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNL:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETLE:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync case OP_SETNLE:
09f4b412099acda62997fd82c8608075c453b3ebvboxsync AssertMsg(pState->Cpu.opcode >= 0x90 && pState->Cpu.opcode <= 0x9f, ("%#x\n", pState->Cpu.opcode));
09f4b412099acda62997fd82c8608075c453b3ebvboxsync if (pState->Cpu.ModRM.Bits.Reg != 2)
09f4b412099acda62997fd82c8608075c453b3ebvboxsync return true;
09f4b412099acda62997fd82c8608075c453b3ebvboxsync break;
09f4b412099acda62997fd82c8608075c453b3ebvboxsync }
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync /*
09f4b412099acda62997fd82c8608075c453b3ebvboxsync * The MOVZX reg32,mem16 instruction without an operand size prefix
09f4b412099acda62997fd82c8608075c453b3ebvboxsync * doesn't quite make sense...
09f4b412099acda62997fd82c8608075c453b3ebvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if ( pState->Cpu.pCurInstr->opcode == OP_MOVZX
329df9696e709dc71611f504a4774f323545be0avboxsync && pState->Cpu.opcode == 0xB7
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync && (pState->Cpu.mode == CPUMODE_16BIT) != !!(fPrefixes & PREFIX_OPSIZE))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
4ecd4ad59281328476ad14f2baa51716b6f5f804vboxsync return false;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync}
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
09f4b412099acda62997fd82c8608075c453b3ebvboxsync
329df9696e709dc71611f504a4774f323545be0avboxsync/**
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Masm style.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * @param pState The disassembler state.
dc959f60f6d3e0cba86f7da4d39aa475913a7e10vboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsyncstatic void MyDisasMasmFormatter(PMYDISSTATE pState)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync{
dc959f60f6d3e0cba86f7da4d39aa475913a7e10vboxsync RTPrintf("masm not implemented: %s", pState->szLine);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync}
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
dc959f60f6d3e0cba86f7da4d39aa475913a7e10vboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/**
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * This is a temporary workaround for catching a few illegal opcodes
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * that the disassembler is currently letting thru, just enough to make
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * the assemblers happy.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * We're too close to a release to dare mess with these things now as
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * they may consequences for performance and let alone introduce bugs.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * @returns true if it's valid. false if it isn't.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * @param pCpu The disassembler output.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsyncstatic bool MyDisasIsValidInstruction(DISCPUSTATE const *pCpu)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync{
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync switch (pCpu->pCurInstr->opcode)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
dc959f60f6d3e0cba86f7da4d39aa475913a7e10vboxsync /* These doesn't take memory operands. */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_MOV_CR:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case OP_MOV_DR:
dc959f60f6d3e0cba86f7da4d39aa475913a7e10vboxsync case OP_MOV_TR:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (pCpu->ModRM.Bits.Mod != 3)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return false;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /* The 0x8f /0 variant of this instruction doesn't get its /r value verified. */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync case OP_POP:
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if ( pCpu->opcode == 0x8f
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync && pCpu->ModRM.Bits.Reg != 0)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return false;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync break;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /* The 0xc6 /0 and 0xc7 /0 variants of this instruction don't get their /r values verified. */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync case OP_MOV:
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if ( ( pCpu->opcode == 0xc6
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync || pCpu->opcode == 0xc7)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync && pCpu->ModRM.Bits.Reg != 0)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return false;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync break;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync default:
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync break;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return true;
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync}
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync/**
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * Callback for reading bytes.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync *
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * @todo This should check that the disassembler doesn't do unnecessary reads,
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * however the current doesn't do this and is just complicated...
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsyncstatic DECLCALLBACK(int) MyDisasInstrRead(RTUINTPTR uSrcAddr, uint8_t *pbDst, uint32_t cbRead, void *pvDisCpu)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync{
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync PMYDISSTATE pState = (PMYDISSTATE)pvDisCpu;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (RT_LIKELY( pState->uNextAddr == uSrcAddr
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync && pState->cbLeft >= cbRead))
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /*
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * Straight forward reading.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (cbRead == 1)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->cbLeft--;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync *pbDst = *pState->pbNext++;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->uNextAddr++;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync else
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync memcpy(pbDst, pState->pbNext, cbRead);
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync pState->pbNext += cbRead;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->cbLeft -= cbRead;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->uNextAddr += cbRead;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync else
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /*
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * Jumping up the stream.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * This occures when the byte sequence is added to the output string.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync uint64_t offReq64 = uSrcAddr - pState->uAddress;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (offReq64 < 32)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync uint32_t offReq = offReq64;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync uintptr_t off = pState->pbNext - pState->pbInstr;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (off + pState->cbLeft <= offReq)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->pbNext += pState->cbLeft;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->uNextAddr += pState->cbLeft;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->cbLeft = 0;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync memset(pbDst, 0xcc, cbRead);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->rc = VERR_EOF;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return VERR_EOF;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync /* reset the stream. */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->cbLeft += off;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->pbNext = pState->pbInstr;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->uNextAddr = pState->uAddress;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /* skip ahead. */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->cbLeft -= offReq;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->pbNext += offReq;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->uNextAddr += offReq;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /* do the reading. */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (pState->cbLeft >= cbRead)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync memcpy(pbDst, pState->pbNext, cbRead);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->cbLeft -= cbRead;
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync pState->pbNext += cbRead;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->uNextAddr += cbRead;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync else
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (pState->cbLeft > 0)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync memcpy(pbDst, pState->pbNext, pState->cbLeft);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pbDst += pState->cbLeft;
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync cbRead -= pState->cbLeft;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->pbNext += pState->cbLeft;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->uNextAddr += pState->cbLeft;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->cbLeft = 0;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync memset(pbDst, 0xcc, cbRead);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->rc = VERR_EOF;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return VERR_EOF;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync else
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTStrmPrintf(g_pStdErr, "Reading before current instruction!\n");
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync memset(pbDst, 0x90, cbRead);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pState->rc = VERR_INTERNAL_ERROR;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return VERR_INTERNAL_ERROR;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync return VINF_SUCCESS;
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync}
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync/**
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * Disassembles a block of memory.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync *
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @returns VBox status code.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param argv0 Program name (for errors and warnings).
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param enmCpuMode The cpu mode to disassemble in.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param uAddress The address we're starting to disassemble at.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param pbFile Where to start disassemble.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param cbFile How much to disassemble.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param enmStyle The assembly output style.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param fListing Whether to print in a listing like mode.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync * @param enmUndefOp How to deal with undefined opcodes.
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync */
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsyncstatic int MyDisasmBlock(const char *argv0, DISCPUMODE enmCpuMode, uint64_t uAddress, uint8_t *pbFile, size_t cbFile,
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync ASMSTYLE enmStyle, bool fListing, UNDEFOPHANDLING enmUndefOp)
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync{
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync /*
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * Initialize the CPU context.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync MYDISSTATE State;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.Cpu.mode = enmCpuMode;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.Cpu.pfnReadBytes = MyDisasInstrRead;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.uAddress = uAddress;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.pbInstr = pbFile;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.cbInstr = 0;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.enmUndefOp = enmUndefOp;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.rc = VINF_SUCCESS;
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync State.cbLeft = cbFile;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.pbNext = pbFile;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.uNextAddr = uAddress;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync void (*pfnFormatter)(PMYDISSTATE pState);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync switch (enmStyle)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync case kAsmStyle_Default:
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pfnFormatter = MyDisasDefaultFormatter;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync break;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync case kAsmStyle_yasm:
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTPrintf(" BITS %d\n", enmCpuMode == CPUMODE_16BIT ? 16 : enmCpuMode == CPUMODE_32BIT ? 32 : 64);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pfnFormatter = MyDisasYasmFormatter;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync break;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync case kAsmStyle_masm:
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pfnFormatter = MyDisasMasmFormatter;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync break;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync default:
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync AssertFailedReturn(VERR_INTERNAL_ERROR);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /*
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * The loop.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync int rcRet = VINF_SUCCESS;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync while (State.cbLeft > 0)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /*
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * Disassemble it.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
9cdd4d805ecb43126372f7cf12e4032836cb738avboxsync State.cbInstr = 0;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.cbLeft += State.pbNext - State.pbInstr;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.uNextAddr = State.uAddress;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.pbNext = State.pbInstr;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync int rc = DISInstr(&State.Cpu, State.uAddress, 0, &State.cbInstr, State.szLine);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if ( RT_SUCCESS(rc)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync || ( ( rc == VERR_DIS_INVALID_OPCODE
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync || rc == VERR_DIS_GEN_FAILURE)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync && State.enmUndefOp == kUndefOp_DefineByte))
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.fUndefOp = rc == VERR_DIS_INVALID_OPCODE
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync || rc == VERR_DIS_GEN_FAILURE
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync || State.Cpu.pCurInstr->opcode == OP_INVALID
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync || State.Cpu.pCurInstr->opcode == OP_ILLUD2
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync || ( State.enmUndefOp == kUndefOp_DefineByte
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync && !MyDisasIsValidInstruction(&State.Cpu));
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (State.fUndefOp && State.enmUndefOp == kUndefOp_DefineByte)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTPrintf(" db");
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (!State.cbInstr)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.cbInstr = 1;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync for (unsigned off = 0; off < State.cbInstr; off++)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync uint8_t b;
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync State.Cpu.pfnReadBytes(State.uAddress + off, &b, 1, &State.Cpu);
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync RTPrintf(off ? ", %03xh" : " %03xh", b);
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync }
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync RTPrintf(" ; %s\n", State.szLine);
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync }
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync else if (!State.fUndefOp && State.enmUndefOp == kUndefOp_All)
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync {
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync RTPrintf("%s: error at %#RX64: unexpected valid instruction (op=%d)\n", argv0, State.uAddress, State.Cpu.pCurInstr->opcode);
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync pfnFormatter(&State);
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync rcRet = VERR_GENERAL_FAILURE;
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync }
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync else if (State.fUndefOp && State.enmUndefOp == kUndefOp_Fail)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTPrintf("%s: error at %#RX64: undefined opcode (op=%d)\n", argv0, State.uAddress, State.Cpu.pCurInstr->opcode);
d4483a6c0c7b315e2295e61eba99ffc54d09fc0dvboxsync pfnFormatter(&State);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync rcRet = VERR_GENERAL_FAILURE;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
bf7ab711aa3580b3a587dcbc4653fe78c99fff37vboxsync else
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /* Use db for odd encodings that we can't make the assembler use. */
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync if ( State.enmUndefOp == kUndefOp_DefineByte
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync && MyDisasYasmFormatterIsOddEncoding(&State))
1ff34f218a5354068e4df9017f77fc5871e6b7c6vboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTPrintf(" db");
d4483a6c0c7b315e2295e61eba99ffc54d09fc0dvboxsync for (unsigned off = 0; off < State.cbInstr; off++)
d4483a6c0c7b315e2295e61eba99ffc54d09fc0dvboxsync {
d4483a6c0c7b315e2295e61eba99ffc54d09fc0dvboxsync uint8_t b;
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync State.Cpu.pfnReadBytes(State.uAddress + off, &b, 1, &State.Cpu);
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync RTPrintf(off ? ", %03xh" : " %03xh", b);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTPrintf(" ; ");
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync pfnFormatter(&State);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync else
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync State.cbInstr = State.pbNext - State.pbInstr;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync if (!State.cbLeft)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTPrintf("%s: error at %#RX64: read beyond the end (%Rrc)\n", argv0, State.uAddress, rc);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync else if (State.cbInstr)
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync RTPrintf("%s: error at %#RX64: %Rrc cbInstr=%d\n", argv0, State.uAddress, rc, State.cbInstr);
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync else
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync {
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync RTPrintf("%s: error at %#RX64: %Rrc cbInstr=%d!\n", argv0, State.uAddress, rc, State.cbInstr);
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync if (rcRet == VINF_SUCCESS)
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync rcRet = rc;
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync break;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync }
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync }
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /* next */
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync State.uAddress += State.cbInstr;
07b405d3b41cfce6f5f989a6c95a5819af3841a1vboxsync State.pbInstr += State.cbInstr;
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync }
c7d2f5508ab9703a7a6c5cce5c9d4bf335af660avboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return rcRet;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync}
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync/**
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * Prints usage info.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync *
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * @returns 1.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * @param argv0 The program name.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsyncstatic int Usage(const char *argv0)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync{
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTStrmPrintf(g_pStdErr,
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync"usage: %s [options] <file1> [file2..fileN]\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" or: %s <--help|-h>\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync"\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync"Options:\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" --address|-a <address>\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" The base address. Default: 0\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" --max-bytes|-b <bytes>\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" The maximum number of bytes to disassemble. Default: 1GB\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" --cpumode|-c <16|32|64>\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" The cpu mode. Default: 32\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" --listing|-l, --no-listing|-L\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" Enables or disables listing mode. Default: --no-listing\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" --offset|-o <offset>\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" The file offset at which to start disassembling. Default: 0\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" --style|-s <default|yasm|masm>\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" The assembly output style. Default: default\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" --undef-op|-u <fail|all|db>\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync" How to treat undefined opcodes. Default: fail\n"
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync , argv0, argv0);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync return 1;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync}
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsyncint main(int argc, char **argv)
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync{
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTR3Init();
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync const char * const argv0 = RTPathFilename(argv[0]);
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /* options */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync uint64_t uAddress = 0;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync ASMSTYLE enmStyle = kAsmStyle_Default;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync UNDEFOPHANDLING enmUndefOp = kUndefOp_Fail;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync bool fListing = true;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync DISCPUMODE enmCpuMode = CPUMODE_32BIT;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTFOFF off = 0;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync RTFOFF cbMax = _1G;
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync /*
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync * Parse arguments.
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync */
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync static const RTOPTIONDEF g_aOptions[] =
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync {
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync { "--address", 'a', RTGETOPT_REQ_UINT64 },
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync { "--cpumode", 'c', RTGETOPT_REQ_UINT32 },
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync { "--help", 'h', 0 },
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync { "--bytes", 'b', RTGETOPT_REQ_INT64 },
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync { "--listing", 'l', 0 },
340ee06f35257fee1bd68223ab3504cf2b1d0c3evboxsync { "--no-listing", 'L', 0 },
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync { "--offset", 'o', RTGETOPT_REQ_INT64 },
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync { "--style", 's', RTGETOPT_REQ_STRING },
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync { "--undef-op", 'u', RTGETOPT_REQ_STRING },
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync };
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync int ch;
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync int iArg = 1;
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync RTOPTIONUNION ValueUnion;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync while ((ch = RTGetOpt(argc, argv, g_aOptions, RT_ELEMENTS(g_aOptions), &iArg, &ValueUnion)))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync switch (ch)
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync {
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync case 'a':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync uAddress = ValueUnion.u64;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 'b':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync cbMax = ValueUnion.i;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 'c':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (ValueUnion.u32 == 16)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmCpuMode = CPUMODE_16BIT;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else if (ValueUnion.u32 == 32)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmCpuMode = CPUMODE_32BIT;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else if (ValueUnion.u32 == 64)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmCpuMode = CPUMODE_64BIT;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync RTStrmPrintf(g_pStdErr, "%s: Invalid CPU mode value %RU32\n", argv0, ValueUnion.u32);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return 1;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 'h':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return Usage(argv0);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 'l':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync fListing = true;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 'L':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync fListing = false;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 'o':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync off = ValueUnion.i;
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync break;
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync case 's':
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync if (!strcmp(ValueUnion.psz, "default"))
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync enmStyle = kAsmStyle_Default;
4c98b8b05f3783351cf256cc90cd4478fb28b62bvboxsync else if (!strcmp(ValueUnion.psz, "yasm"))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmStyle = kAsmStyle_yasm;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else if (!strcmp(ValueUnion.psz, "masm"))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmStyle = kAsmStyle_masm;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync RTStrmPrintf(g_pStdErr, "%s: masm style isn't implemented yet\n", argv0);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return 1;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync RTStrmPrintf(g_pStdErr, "%s: unknown assembly style: %s\n", argv0, ValueUnion.psz);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return 1;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync case 'u':
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (!strcmp(ValueUnion.psz, "fail"))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmUndefOp = kUndefOp_Fail;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else if (!strcmp(ValueUnion.psz, "all"))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmUndefOp = kUndefOp_All;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else if (!strcmp(ValueUnion.psz, "db"))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync enmUndefOp = kUndefOp_DefineByte;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync else
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync RTStrmPrintf(g_pStdErr, "%s: unknown undefined opcode handling method: %s\n", argv0, ValueUnion.psz);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return 1;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync default:
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync RTStrmPrintf(g_pStdErr, "%s: syntax error: %Rrc\n", argv0, ch);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return 1;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (iArg >= argc)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return Usage(argv0);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Process the files.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync int rc = VINF_SUCCESS;
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync for ( ; iArg < argc; iArg++)
73ba84f95f918cc170be38908ad240fbb2f8f354vboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Read the file into memory.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync void *pvFile;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync size_t cbFile;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync rc = RTFileReadAllEx(argv[iArg], off, cbMax, 0, &pvFile, &cbFile);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (RT_FAILURE(rc))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync RTStrmPrintf(g_pStdErr, "%s: %s: %Rrc\n", argv0, argv[iArg], rc);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync /*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Disassemble it.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync rc = MyDisasmBlock(argv0, enmCpuMode, uAddress, (uint8_t *)pvFile, cbFile, enmStyle, fListing, enmUndefOp);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync if (RT_FAILURE(rc))
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync break;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync return RT_SUCCESS(rc) ? 0 : 1;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync}
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync