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DasmAvr8.cpp
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/***************************************************************************
* dasmfw -- Disassembler Framework *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
***************************************************************************/
/* Copyright (C) Hermann Seib *
* The AVR8 disassembler engine is loosely based on vAVRdisasm (see *
* https://github.com/vsergeev/vavrdisasm for that), so *
* Parts Copyright (C) 2013 Vanya A. Sergeev *
***************************************************************************/
/*****************************************************************************/
/* DasmAvr8.cpp : avr8 disassembler implementation */
/*****************************************************************************/
#include "DasmAvr8.h"
/*****************************************************************************/
/* CreateAvr8 : create an avr8 disassembler handler */
/*****************************************************************************/
static Disassembler *CreateAvr8(Application *pApp)
{
Disassembler *pDasm = new DasmAvr8(pApp);
if (pDasm) pDasm->Setup();
return pDasm;
}
/*****************************************************************************/
/* Auto-registration */
/*****************************************************************************/
static bool bRegistered[] =
{
RegisterDisassembler("avr8", CreateAvr8),
};
/*===========================================================================*/
/* DasmAvr8 class members */
/*===========================================================================*/
static const char *sdefdelim[] = { " = ", " " };
static const char *sequdelim[] = { " = ", ", " };
/*****************************************************************************/
/* opcodes : Avr8 opcodes array for initialization */
/*****************************************************************************/
OpCode DasmAvr8::opcodes[mnemoAvr8_count] =
{
{ "???", Data }, /* _ill */
{ "adc", Data }, /* _adc */
{ "add", Data }, /* _add */
{ "adiw", Data }, /* _adiw */
{ "and", Data }, /* _and */
{ "andi", Data }, /* _andi */
{ "asr", Data }, /* _asr */
{ "bclr", Data }, /* _bclr */
{ "bld", Data }, /* _bld */
{ "brbc", Code }, /* _brbc */
{ "brbs", Code }, /* _brbs */
{ "brcc", Code }, /* _brcc */
{ "brcs", Code }, /* _brcs */
{ "break", Data }, /* _break */
{ "breq", Code }, /* _breq */
{ "brge", Code }, /* _brge */
{ "brhc", Code }, /* _brhc */
{ "brhs", Code }, /* _brhs */
{ "brid", Code }, /* _brid */
{ "brie", Code }, /* _brie */
{ "brlo", Code }, /* _brlo */
{ "brlt", Code }, /* _brlt */
{ "brmi", Code }, /* _brmi */
{ "brne", Code }, /* _brne */
{ "brpl", Code }, /* _brpl */
{ "brsh", Code }, /* _brsh */
{ "brtc", Code }, /* _brtc */
{ "brts", Code }, /* _brts */
{ "brvc", Code }, /* _brvc */
{ "brvs", Code }, /* _brvs */
{ "bset", Data }, /* _bset */
{ "bst", Data }, /* _bst */
{ "call", Code }, /* _call */
{ "cbi", Data }, /* _cbi */
{ "cbr", Data }, /* _cbr */
{ "clc", Data }, /* _clc */
{ "clh", Data }, /* _clh */
{ "cli", Data }, /* _cli */
{ "cln", Data }, /* _cln */
{ "clr", Data }, /* _clr */
{ "cls", Data }, /* _cls */
{ "clt", Data }, /* _clt */
{ "clv", Data }, /* _clv */
{ "clz", Data }, /* _clz */
{ "com", Data }, /* _com */
{ "cp", Data }, /* _cp */
{ "cpc", Data }, /* _cpc */
{ "cpi", Data }, /* _cpi */
{ "cpse", Data }, /* _cpse */
{ "dec", Data }, /* _dec */
{ "des", Data }, /* _des */
{ "eicall", Data }, /* _eicall */
{ "eijmp", Data }, /* _eijmp */
{ "elpm", Data }, /* _elpm */
{ "eor", Data }, /* _eor */
{ "fmul", Data }, /* _fmul */
{ "fmuls", Data }, /* _fmuls */
{ "fmulsu", Data }, /* _fmulsu */
{ "icall", Code }, /* _icall */
{ "ijmp", Code }, /* _ijmp */
{ "in", Data }, /* _in */
{ "inc", Data }, /* _inc */
{ "jmp", Code }, /* _jmp */
{ "lac", Data }, /* _lac */
{ "las", Data }, /* _las */
{ "lat", Data }, /* _lat */
{ "ld", Data }, /* _ld */
{ "ldd", Data }, /* _ldd */
{ "ldi", Data }, /* _ldi */
{ "lds", Data }, /* _lds */
{ "lpm", Data }, /* _lpm */
{ "lsl", Data }, /* _lsl */
{ "lsr", Data }, /* _lsr */
{ "mov", Data }, /* _mov */
{ "movw", Data }, /* _movw */
{ "mul", Data }, /* _mul */
{ "muls", Data }, /* _muls */
{ "mulsu", Data }, /* _mulsu */
{ "neg", Data }, /* _neg */
{ "nop", Data }, /* _nop */
{ "or", Data }, /* _or */
{ "ori", Data }, /* _ori */
{ "out", Data }, /* _out */
{ "pop", Data }, /* _pop */
{ "push", Data }, /* _push */
{ "rcall", Code }, /* _rcall */
{ "ret", Code }, /* _ret */
{ "reti", Code }, /* _reti */
{ "rjmp", Code }, /* _rjmp */
{ "rol", Data }, /* _rol */
{ "ror", Data }, /* _ror */
{ "sbc", Data }, /* _sbc */
{ "sbci", Data }, /* _sbci */
{ "sbi", Data }, /* _sbi */
{ "sbic", Data }, /* _sbic */
{ "sbis", Data }, /* _sbis */
{ "sbiw", Data }, /* _sbiw */
{ "sbr", Data }, /* _sbr */
{ "sbrc", Data }, /* _sbrc */
{ "sbrs", Data }, /* _sbrs */
{ "sec", Data }, /* _sec */
{ "seh", Data }, /* _seh */
{ "sei", Data }, /* _sei */
{ "sen", Data }, /* _sen */
{ "ser", Data }, /* _ser */
{ "ses", Data }, /* _ses */
{ "set", Data }, /* _set */
{ "sev", Data }, /* _sev */
{ "sez", Data }, /* _sez */
{ "sleep", Data }, /* _sleep */
{ "spm", Data }, /* _spm */
{ "st", Data }, /* _st */
{ "std", Data }, /* _std */
{ "sts", Data }, /* _sts */
{ "sub", Data }, /* _sub */
{ "subi", Data }, /* _subi */
{ "swap", Data }, /* _swap */
{ "tst", Data }, /* _tst */
{ "wdr", Data }, /* _wdr */
{ "xch", Data }, /* _xch */
// directives
{ ".byte", Const }, /* _d_byte */
{ ".cseg", Const }, /* _d_cseg */
{ ".db", Const }, /* _d_db */
{ ".def", Const }, /* _d_def */
{ ".device", Const }, /* _d_device */
{ ".dseg", Const }, /* _d_dseg */
{ ".dw", Const }, /* _d_dw */
{ ".equ", Const }, /* _d_equ */
{ ".eseg", Const }, /* _d_eseg */
{ ".exit", Const }, /* _d_exit */
{ ".include", Const }, /* _d_include */
{ ".org", Const }, /* _d_org */
{ ".equ", Const }, /* _d_port */
{ ".set", Const }, /* _d_set */
{ ".db", Const }, /* _d_string */
{ ".db", Const }, /* _d_stringz */
};
/*****************************************************************************/
/* AVR_Instruction_Set : the instruction set */
/*****************************************************************************/
avrInstructionInfo DasmAvr8::AVR_Instruction_Set[] =
{
{ _break, 2, 0x9598, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _clc, 2, 0x9488, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _clh, 2, 0x94d8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _cli, 2, 0x94f8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _cln, 2, 0x94a8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _cls, 2, 0x94c8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _clt, 2, 0x94e8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _clv, 2, 0x94b8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _clz, 2, 0x9498, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _eicall, 2, 0x9519, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _eijmp, 2, 0x9419, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _elpm, 2, 0x95d8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _icall, 2, 0x9509, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _ijmp, 2, 0x9409, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _lpm, 2, 0x95c8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _nop, 2, 0x0000, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _ret, 2, 0x9508, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _reti, 2, 0x9518, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _sec, 2, 0x9408, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _seh, 2, 0x9458, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _sei, 2, 0x9478, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _sen, 2, 0x9428, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _ses, 2, 0x9448, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _set, 2, 0x9468, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _sev, 2, 0x9438, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _sez, 2, 0x9418, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _sleep, 2, 0x9588, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _spm, 2, 0x95e8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _spm, 2, 0x95f8, 1, {0x0000, 0x0000}, {OpndZPlus, OpndNone}},
{ _wdr, 2, 0x95a8, 0, {0x0000, 0x0000}, {OpndNone, OpndNone}},
{ _des, 2, 0x940b, 1, {0x00f0, 0x0000}, {OpndDESRound, OpndNone}},
{ _asr, 2, 0x9405, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _bclr, 2, 0x9488, 1, {0x0070, 0x0000}, {OpndBit, OpndNone}},
{ _brcc, 2, 0xf400, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brcs, 2, 0xf000, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _breq, 2, 0xf001, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brge, 2, 0xf404, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brhc, 2, 0xf405, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brhs, 2, 0xf005, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brid, 2, 0xf407, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brie, 2, 0xf007, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brlo, 2, 0xf000, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brlt, 2, 0xf004, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brmi, 2, 0xf002, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brne, 2, 0xf401, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brpl, 2, 0xf402, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brsh, 2, 0xf400, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brtc, 2, 0xf406, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brts, 2, 0xf006, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brvc, 2, 0xf403, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _brvs, 2, 0xf003, 1, {0x03f8, 0x0000}, {OpndBranchAddr, OpndNone}},
{ _bset, 2, 0x9408, 1, {0x0070, 0x0000}, {OpndBit, OpndNone}},
{ _call, 4, 0x940e, 1, {0x01f1, 0x0000}, {OpndLongAbsAddr, OpndNone}},
{ _com, 2, 0x9400, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _dec, 2, 0x940a, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _inc, 2, 0x9403, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _jmp, 4, 0x940c, 1, {0x01f1, 0x0000}, {OpndLongAbsAddr, OpndNone}},
{ _lpm, 2, 0x9004, 2, {0x01f0, 0x0000}, {OpndReg, OpndZ}},
{ _lpm, 2, 0x9005, 2, {0x01f0, 0x0000}, {OpndReg, OpndZPlus}},
{ _lsr, 2, 0x9406, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _neg, 2, 0x9401, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _pop, 2, 0x900f, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _xch, 2, 0x9204, 2, {0x0000, 0x01f0}, {OpndZ, OpndReg}},
{ _las, 2, 0x9205, 2, {0x0000, 0x01f0}, {OpndZ, OpndReg}},
{ _lac, 2, 0x9206, 2, {0x0000, 0x01f0}, {OpndZ, OpndReg}},
{ _lat, 2, 0x9207, 2, {0x0000, 0x01f0}, {OpndZ, OpndReg}},
{ _push, 2, 0x920f, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _rcall, 2, 0xd000, 1, {0x0fff, 0x0000}, {OpndRelAddr, OpndNone}},
{ _rjmp, 2, 0xc000, 1, {0x0fff, 0x0000}, {OpndRelAddr, OpndNone}},
{ _ror, 2, 0x9407, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _ser, 2, 0xef0f, 1, {0x00f0, 0x0000}, {OpndRegStartR16, OpndNone}},
{ _swap, 2, 0x9402, 1, {0x01f0, 0x0000}, {OpndReg, OpndNone}},
{ _adc, 2, 0x1c00, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _add, 2, 0x0c00, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _adiw, 2, 0x9600, 2, {0x0030, 0x00cf}, {OpndRegEvenPStartR24, OpndData}},
{ _and, 2, 0x2000, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _andi, 2, 0x7000, 2, {0x00f0, 0x0f0f}, {OpndRegStartR16, OpndData}},
{ _bld, 2, 0xf800, 2, {0x01f0, 0x0007}, {OpndReg, OpndBit}},
{ _brbc, 2, 0xf400, 2, {0x0007, 0x03f8}, {OpndBit, OpndBranchAddr}},
{ _brbs, 2, 0xf000, 2, {0x0007, 0x03f8}, {OpndBit, OpndBranchAddr}},
{ _bst, 2, 0xfa00, 2, {0x01f0, 0x0007}, {OpndReg, OpndBit}},
{ _cbi, 2, 0x9800, 2, {0x00f8, 0x0007}, {OpndIOReg, OpndBit}},
{ _cp, 2, 0x1400, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _cpc, 2, 0x0400, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _cpi, 2, 0x3000, 2, {0x00f0, 0x0f0f}, {OpndRegStartR16, OpndData}},
{ _cpse, 2, 0x1000, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _elpm, 2, 0x9006, 2, {0x01f0, 0x0000}, {OpndReg, OpndZ}},
{ _elpm, 2, 0x9007, 2, {0x01f0, 0x0000}, {OpndReg, OpndZPlus}},
{ _eor, 2, 0x2400, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _fmul, 2, 0x0308, 2, {0x0070, 0x0007}, {OpndRegStartR16, OpndRegStartR16}},
{ _fmuls, 2, 0x0380, 2, {0x0070, 0x0007}, {OpndRegStartR16, OpndRegStartR16}},
{ _fmulsu, 2, 0x0388, 2, {0x0070, 0x0007}, {OpndRegStartR16, OpndRegStartR16}},
{ _in, 2, 0xb000, 2, {0x01f0, 0x060f}, {OpndReg, OpndIOReg}},
{ _ld, 2, 0x900c, 2, {0x01f0, 0x0000}, {OpndReg, OpndX}},
{ _ld, 2, 0x900d, 2, {0x01f0, 0x0000}, {OpndReg, OpndXPlus}},
{ _ld, 2, 0x900e, 2, {0x01f0, 0x0000}, {OpndReg, OpndMinusX}},
{ _ld, 2, 0x8008, 2, {0x01f0, 0x0000}, {OpndReg, OpndY}},
{ _ld, 2, 0x9009, 2, {0x01f0, 0x0000}, {OpndReg, OpndYPlus}},
{ _ld, 2, 0x900a, 2, {0x01f0, 0x0000}, {OpndReg, OpndMinusY}},
{ _ld, 2, 0x8000, 2, {0x01f0, 0x0000}, {OpndReg, OpndZ}},
{ _ld, 2, 0x9001, 2, {0x01f0, 0x0000}, {OpndReg, OpndZPlus}},
{ _ld, 2, 0x9002, 2, {0x01f0, 0x0000}, {OpndReg, OpndMinusZ}},
{ _ldd, 2, 0x8008, 2, {0x01f0, 0x2c07}, {OpndReg, OpndYPlusQ}},
{ _ldd, 2, 0x8000, 2, {0x01f0, 0x2c07}, {OpndReg, OpndZPlusQ}},
{ _ldi, 2, 0xe000, 2, {0x00f0, 0x0f0f}, {OpndRegStartR16, OpndData}},
{ _lds, 4, 0x9000, 2, {0x01f0, 0x0000}, {OpndReg, OpndLongAbsAddrData}},
{ _lds, 2, 0xa000, 2, {0x00f0, 0x070f}, {OpndRegStartR16, OpndData}},
{ _mov, 2, 0x2c00, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _movw, 2, 0x0100, 2, {0x00f0, 0x000f}, {OpndRegEvenPair, OpndRegEvenPair}},
{ _mul, 2, 0x9c00, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _muls, 2, 0x0200, 2, {0x00f0, 0x000f}, {OpndRegStartR16, OpndRegStartR16}},
{ _mulsu, 2, 0x0300, 2, {0x0070, 0x0007}, {OpndRegStartR16, OpndRegStartR16}},
{ _or, 2, 0x2800, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _ori, 2, 0x6000, 2, {0x00f0, 0x0f0f}, {OpndRegStartR16, OpndData}},
{ _out, 2, 0xb800, 2, {0x060f, 0x01f0}, {OpndIOReg, OpndReg}},
{ _sbc, 2, 0x0800, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _sbci, 2, 0x4000, 2, {0x00f0, 0x0f0f}, {OpndRegStartR16, OpndData}},
{ _sbi, 2, 0x9a00, 2, {0x00f8, 0x0007}, {OpndIOReg, OpndBit}},
{ _sbic, 2, 0x9900, 2, {0x00f8, 0x0007}, {OpndIOReg, OpndBit}},
{ _sbis, 2, 0x9b00, 2, {0x00f8, 0x0007}, {OpndIOReg, OpndBit}},
{ _sbiw, 2, 0x9700, 2, {0x0030, 0x00cf}, {OpndRegEvenPStartR24, OpndData}},
{ _sbr, 2, 0x6000, 2, {0x00f0, 0x0f0f}, {OpndRegStartR16, OpndData}},
{ _sbrc, 2, 0xfc00, 2, {0x01f0, 0x0007}, {OpndReg, OpndBit}},
{ _sbrs, 2, 0xfe00, 2, {0x01f0, 0x0007}, {OpndReg, OpndBit}},
{ _st, 2, 0x920c, 2, {0x0000, 0x01f0}, {OpndX, OpndReg}},
{ _st, 2, 0x920d, 2, {0x0000, 0x01f0}, {OpndXPlus, OpndReg}},
{ _st, 2, 0x920e, 2, {0x0000, 0x01f0}, {OpndMinusX, OpndReg}},
{ _st, 2, 0x8208, 2, {0x0000, 0x01f0}, {OpndY, OpndReg}},
{ _st, 2, 0x9209, 2, {0x0000, 0x01f0}, {OpndYPlus, OpndReg}},
{ _st, 2, 0x920a, 2, {0x0000, 0x01f0}, {OpndMinusY, OpndReg}},
{ _st, 2, 0x8200, 2, {0x0000, 0x01f0}, {OpndZ, OpndReg}},
{ _st, 2, 0x9201, 2, {0x0000, 0x01f0}, {OpndZPlus, OpndReg}},
{ _st, 2, 0x9202, 2, {0x0000, 0x01f0}, {OpndMinusZ, OpndReg}},
{ _std, 2, 0x8208, 2, {0x2c07, 0x01f0}, {OpndYPlusQ, OpndReg}},
{ _std, 2, 0x8200, 2, {0x2c07, 0x01f0}, {OpndZPlusQ, OpndReg}},
{ _sts, 4, 0x9200, 2, {0x0000, 0x01f0}, {OpndLongAbsAddrData, OpndReg}},
{ _sts, 2, 0xA800, 2, {0x00f0, 0x070f}, {OpndRegStartR16, OpndData}},
{ _sub, 2, 0x1800, 2, {0x01f0, 0x020f}, {OpndReg, OpndReg}},
{ _subi, 2, 0x5000, 2, {0x00f0, 0x0f0f}, {OpndRegStartR16, OpndData}},
};
/*****************************************************************************/
/* DasmAvr8 : constructor */
/*****************************************************************************/
DasmAvr8::DasmAvr8(Application *pApp)
: Disassembler(pApp)
{
commentStart = ";";
labelDelim = ":";
dbalign = true;
dbalignchg = false;
avr_gcc = false;
disassemblyFlagMask &= ~SHMF_TXT; /* FCB and FCC are the same here */
mnemo.resize(mnemoAvr8_count); /* set up mnemonics table */
for (int i = 0; i < mnemoAvr8_count; i++)
mnemo[i] = opcodes[i];
// set up options table
// class uses one generic option setter/getter pair (not mandatory)
AddOption("codebits", "{number}\tCode address bits",
static_cast<PSetter>(&DasmAvr8::SetAvr8Option),
static_cast<PGetter>(&DasmAvr8::GetAvr8Option));
AddOption("highcode", "{addr}\tHighest code address",
static_cast<PSetter>(&DasmAvr8::SetAvr8Option),
static_cast<PGetter>(&DasmAvr8::GetAvr8Option));
AddOption("highdata", "{addr}\tHighest data address",
static_cast<PSetter>(&DasmAvr8::SetAvr8Option),
static_cast<PGetter>(&DasmAvr8::GetAvr8Option));
#if 0
// invariably 63(? check...)
AddOption("highio", "{addr}\tHighest data address",
static_cast<PSetter>(&DasmAvr8::SetAvr8Option),
static_cast<PGetter>(&DasmAvr8::GetAvr8Option));
#endif
AddOption("higheeprom", "{addr}\tHighest EEPROM address",
static_cast<PSetter>(&DasmAvr8::SetAvr8Option),
static_cast<PGetter>(&DasmAvr8::GetAvr8Option));
AddOption("dbalign", "{off|on}\tTry to align .db to word boundary",
static_cast<PSetter>(&DasmAvr8::SetAvr8Option),
static_cast<PGetter>(&DasmAvr8::GetAvr8Option));
AddOption("avr-gcc", "{off|on}\tCreate avr-gcc compatible output (.sx format)",
static_cast<PSetter>(&DasmAvr8::SetAvr8Option),
static_cast<PGetter>(&DasmAvr8::GetAvr8Option));
}
/*****************************************************************************/
/* ~DasmAvr8 : destructor */
/*****************************************************************************/
DasmAvr8::~DasmAvr8()
{
}
/*****************************************************************************/
/* Setup : Setup disassembler after construction */
/*****************************************************************************/
bool DasmAvr8::Setup()
{
highaddr.resize(GetBusCount());
highaddr[BusCode] = 0x3fffff;
highaddr[BusData] = 0xffff;
highaddr[BusIO] = 0x3f;
highaddr[BusEEPROM] = 0xffff;
bool bOK = Disassembler::Setup();
SetupRegnames(avr_gcc); /* initial register name setup */
busnames[BusData] = "Data";
busnames[BusIO] = "IO";
busnames[BusEEPROM] = "EEPROM";
return bOK;
}
/*****************************************************************************/
/* SetupRegnames : set up register names */
/*****************************************************************************/
void DasmAvr8::SetupRegnames(bool newAvrGcc)
{
static const char *reghdr[] = { "R", "r" };
if (!regname.size())
{
regname.resize(regAvr8_count); /* assure space for reg names */
regname[_x] = "X";
regname[_y] = "Y";
regname[_z] = "Z";
}
for (int i = _r0; i <= _r31; i++) /* set up R0..R31 */
{
string regnameold = sformat("%s%d", reghdr[avr_gcc], i);
if (!regname[i].size() ||
regname[i] == regnameold)
regname[i] = sformat("%s%d", reghdr[newAvrGcc], i);
}
}
/*****************************************************************************/
/* InfoHelp : print disassembler-specific info file help */
/*****************************************************************************/
string DasmAvr8::InfoHelp()
{
string busses = GetBusNames();
const char *szb = busses.c_str();
return sformat("REGLABEL addr Reg [text]\n"
"UNREGLABEL addr Reg\n"
"HIGH [BUS {%s}] addr[-addr] reladdr\n"
"LOW [BUS {%s}] addr[-addr] reladdr\n"
"MHIGH [BUS {%s}] addr[-addr] reladdr\n"
"MLOW [BUS {%s}] addr[-addr] reladdr\n"
"HIGH2 [BUS {%s}] addr[-addr] reladdr\n"
"LOW2 [BUS {%s}] addr[-addr] reladdr\n"
, szb
, szb
, szb
, szb
, szb
, szb
);
}
/*****************************************************************************/
/* ProcessInfo : process an info file line */
/*****************************************************************************/
bool DasmAvr8::ProcessInfo
(
string key, /* parsed key */
string value, /* rest of the line */
adr_t &from, /* from/to (if range given) */
adr_t &to,
adr_t &step, /* step size */
vector<TMemoryArray<adr_t>> &remaps, /* remaps, if necessary */
bool bProcInfo, /* flag whether processing */
int bus, /* target bus for command */
int tgtbus /* target bus for parameters */
)
{
if (!bProcInfo) /* only if processing */
return false;
enum InfoCmd
{
infoUnknown = -1, /* unknown info command */
infoRegLabel, /* REGLABEL addr Rxx [Text] */
infoUnregLabel, /* UNREGLABEL addr Rxx */
infoHigh, /* HIGH [BUS bus] addr[-addr] addr */
infoLow, /* LOW [BUS bus] addr[-addr] addr */
infoMHigh, /* MHIGH [BUS bus] addr[-addr] addr */
infoMLow, /* MLOW [BUS bus] addr[-addr] addr */
infoHigh2, /* HIGH2 [BUS bus] addr[-addr] addr/2*/
infoLow2, /* LOW2 [BUS bus] addr[-addr] addr/2 */
};
static struct /* structure to convert key to type */
{
const char *name;
InfoCmd cmdType;
} sKey[] =
{
{ "REGLABEL", infoRegLabel },
{ "UNREGLABEL", infoUnregLabel },
{ "HIGH", infoHigh },
{ "LOW", infoLow },
{ "MHIGH", infoMHigh },
{ "MLOW", infoMLow },
{ "HIGH2", infoHigh2 },
{ "LOW2", infoLow2 },
};
InfoCmd cmdType = infoUnknown;
for (size_t i = 0; i < _countof(sKey); i++)
if (key == sKey[i].name)
{
cmdType = sKey[i].cmdType;
break;
}
if (cmdType == infoUnknown)
return false; // we KNOW the parent classes don't do anything else
switch (cmdType)
{
case infoRegLabel : /* REGLABEL addr Rxx [Text] */
case infoUnregLabel : /* UNREGLABEL addr Rxx */
{
string srange;
string::size_type idx = value.find_first_of(" \t");
if (idx == value.npos) idx = value.size();
srange = value.substr(0, idx);
value = (idx == value.size()) ? "" : triminfo(value.substr(idx), true, false);
idx = value.find_first_of(" \t");
if (idx == value.npos) idx = value.size();
string sreg = lowercase(trim(value.substr(0, idx)));
value = (idx == value.size()) ? "" : triminfo(value.substr(idx), true, false);
int nRegNum = -1;
if (sreg.size())
{
if (sreg[0] == 'r')
sreg = sreg.substr(1);
const char *startp = sreg.c_str();
char *endp;
long lres = strtol(startp, &endp, 10);
if (lres >= 0 && lres <= 31 && endp != startp)
nRegNum = (int)lres;
}
if (bus == BusCode && from != NO_ADDRESS && nRegNum >= 0)
AddRegLabel(from, value, nRegNum);
}
break;
case infoHigh : /* HIGH [BUS bus] addr[-addr] addr */
case infoLow : /* LOW [BUS bus] addr[-addr] addr */
case infoMHigh : /* MHIGH [BUS bus] addr[-addr] addr */
case infoMLow : /* MLOW [BUS bus] addr[-addr] addr */
case infoHigh2 : /* HIGH2 [BUS bus] addr[-addr] addr/2*/
case infoLow2 : /* LOW2 [BUS bus] addr[-addr] addr/2 */
{
string srange;
string::size_type idx = value.find_first_of(" \t");
if (idx == value.npos) idx = value.size();
srange = value.substr(0, idx);
adr_t rel = NO_ADDRESS;
value = (idx == value.size()) ? "" : trim(value.substr(idx));
if (value.size() && /* if addr[-addr] dp */
value[0] != '*')
String2Number(value, rel);
if (from != NO_ADDRESS)
{
MemAttributeAvr8::RelType rt;
switch (cmdType)
{
case infoHigh :
rt = MemAttributeAvr8::RelHigh;
break;
case infoLow :
rt = MemAttributeAvr8::RelLow;
break;
case infoMHigh :
rt = MemAttributeAvr8::RelHighMinus;
rel = -((int16_t)rel);
break;
case infoMLow :
rt = MemAttributeAvr8::RelLowMinus;
rel = -((int16_t)rel);
break;
case infoHigh2 :
rt = MemAttributeAvr8::RelHigh2;
rel *= 2;
break;
case infoLow2 :
rt = MemAttributeAvr8::RelLow2;
rel *= 2;
break;
default : // keep gcc happy
break;
}
// range check for rel in tgtbus missing.
// if (tgtbus != bus)
{
adr_t *pmap = remaps[tgtbus].getat(rel);
if (pmap) rel += *pmap;
if (rel < GetLowestBusAddr(tgtbus) ||
rel > GetHighestBusAddr(tgtbus))
break;
}
for (adr_t scanned = from;
scanned >= from && scanned <= to;
scanned += step)
SetRelative(scanned, rt, rel, tgtbus, bus);
}
}
break;
default : // keep gcc happy
break;
}
return true;
}
/*****************************************************************************/
/* SetAvr8Option : sets a disassembler option */
/*****************************************************************************/
int DasmAvr8::SetAvr8Option(string lname, string value)
{
bool bnValue = true; /* default to "on" */
bool bIsBool = ParseBool(value, bnValue);
adr_t avalue;
String2Number(value, avalue);
int iValue = atoi(value.c_str());
if (lname == "codebits" && iValue >= 8 && iValue <= 32)
busbits[BusCode] = iValue;
else if (lname == "highcode" && avalue >= 512 && avalue <= 0x3fffff)
{
highaddr[BusCode] = avalue;
RecalcBusBits(BusCode);
}
else if (lname == "highdata" && avalue >= 128 && avalue <= 0xffff)
{
highaddr[BusData] = avalue;
RecalcBusBits(BusData);
}
else if (lname == "highio" && avalue >= 1 && avalue <= 0x3f)
highaddr[BusIO] = avalue;
else if (lname == "higheeprom" && avalue >= 128 && avalue <= 0xffff)
{
highaddr[BusEEPROM] = avalue;
RecalcBusBits(BusEEPROM);
}
else if (lname == "dbalign")
{
dbalign = bnValue;
dbalignchg = true;
return bIsBool ? 1 : 0;
}
else if (lname == "avr-gcc")
{
static struct
{
int idx;
const char *txt[2];
} smne[] =
{
{ _d_byte, { ".byte", ".skip" } },
{ _d_cseg, { ".cseg", ".text" /* ".section" */ } },
{ _d_db, { ".db", ".byte" } },
{ _d_def, { ".def", "#define" } },
// _d_device ".device" is unclear
{ _d_dseg, { ".dseg", ".data" /* ".section" */ } },
{ _d_dw, { ".dw", ".word" } },
// _d_equ ".equ" should be identical
// _d_eseg ".eseg" is unclear
{ _d_exit, { ".exit", ".end" } },
{ _d_include, { ".include", "#include" } },
// _d_org ".org" should be identical
// _d_port ".equ" should be identical
// _d_set ".set" should be identical
{ _d_string, { ".db", ".ascii" } },
{ _d_stringz, { ".db", ".asciz" } },
};
for (size_t i = 0; i < _countof(smne); i++)
{
if (mnemo[smne[i].idx].mne == smne[i].txt[avr_gcc])
mnemo[smne[i].idx].mne = smne[i].txt[bnValue];
}
SetupRegnames(bnValue);
avr_gcc = bnValue;
if (!dbalignchg)
dbalign = !avr_gcc;
return bIsBool ? 1 : 0;
}
return 1; /* name and value consumed */
}
/*****************************************************************************/
/* GetAvr8Option : retrieves a disassembler option */
/*****************************************************************************/
string DasmAvr8::GetAvr8Option(string lname)
{
if (lname == "codebits") return sformat("%d", busbits[BusCode]);
if (lname == "highcode") return sformat("0x%x", highaddr[BusCode]);
if (lname == "highdata") return sformat("0x%x", highaddr[BusData]);
if (lname == "highio") return sformat("0x%x", highaddr[BusIO]);
if (lname == "higheeprom") return sformat("0x%x", highaddr[BusEEPROM]);
if (lname == "dbalign") return dbalign ? "on" : "off";
if (lname == "avr-gcc") return avr_gcc ? "on" : "off";
return "";
}
/*****************************************************************************/
/* LoadAtmelGeneric loads an ATMEL Generic hex file */
/*****************************************************************************/
bool DasmAvr8::LoadAtmelGeneric(FILE *f, string &sLoadType, int bus)
{
int nCurPos = ftell(f);
int c = 0;
if ((c = fgetc(f)) == EOF) /* look whether starting with hex chr*/
return false;
ungetc(c, f);
if (!( (c >= '0' && c <= '9') ||
(c >= 'a' && c <= 'f') ||
(c >= 'A' && c <= 'F') ))
return false;
bool done = false;
int nBytes = 0;
adr_t fend = GetLowestBusAddr(bus);
MemoryType memType = GetDefaultMemoryType(bus);
// ATMEL Generic Hex files consist of CR+LF-terminated lines
// Each line consists of hex values of the following format
// AAAAAA:DD[DD]
// AAAAAA ... address
// DDDD ..... (16-bit) data
// ... IOW, a HIGHLY inefficient format.
while (!done && (nBytes >= 0)) /* while there are lines */
{
adr_t nAddr;
uint16_t value = 0;
int i;
uint8_t chks = 0;
nAddr = GetHex(f, 6);
if (nAddr == NO_ADDRESS)
break;
/* if illegal address */
if ((nAddr < GetLowestBusAddr(bus)) ||
(nAddr > GetHighestBusAddr(bus)))
{
nBytes = -1; /* return with error */
break;
}
c = fgetc(f);
if (c != ':')
break;
for (i = 0; i < 2; i++) /* followed by up to 2 bytes of data */
{
adr_t b = GetHex(f, 2);
if (b == NO_ADDRESS)
break;
value = (value << 8) | (uint16_t)b;
}
if (!i)
break;
AddMemory(nAddr, i, memType, 0, bus);
nBytes += i;
if (i == 1)
setat(nAddr, (uint8_t)value, bus);
else
SetUWord(nAddr, value, bus);
for (; i >= 0; i--)
{
// Hmmm. begin/end is a bit inadequate here, without the bus ...
// Might need an update when this becomes remotely relevant
bool bUsed = ((begin == NO_ADDRESS || (adr_t)i >= begin) &&
(end == NO_ADDRESS || (adr_t)i <= end));
SetCellUsed(nAddr + i, bUsed, bus); /* mark as (un)used byte */
SetDisplay(nAddr + i, defaultDisplay, bus);
}
while ((c = fgetc(f)) == '\r' || c == '\n')
;
if (c != EOF)
ungetc(c, f);
else
done = true;
(void)chks; // unused ATM
}
fseek(f, nCurPos, SEEK_SET);
if (nBytes >= 0)
{
offset = fend + 1;
}
if (nBytes > 0)
sLoadType = "Atmel Generic Hex";
return (nBytes > 0); /* pass back #bytes interpreted */
}
/*****************************************************************************/
/* LoadFile : loads an opened file */
/*****************************************************************************/
bool DasmAvr8::LoadFile(string filename, FILE *f, string &sLoadType, int interleave, int bus)
{
// Atmel special: a .eep file is an Intel Hex file for the EEPROM area
string::size_type fnlen = filename.size();
if (fnlen > 4 &&
lowercase(filename.substr(fnlen - 4)) == ".eep")
bus = BusEEPROM;
return LoadAtmelGeneric(f, sLoadType, bus) || // ATMEL Generic Hex files need no interleave
Disassembler::LoadFile(filename, f, sLoadType, interleave, bus);
}
/*****************************************************************************/
/* String2Number : convert a string to a number in all known formats */
/*****************************************************************************/
bool DasmAvr8::String2Number(string s, adr_t &value)
{
/* Standard formats for AVRASM :
- a character is enclosed in '
- a binary has a leading 0b
- a hex constant has a leading 0x
*/
s = trim(s);
string hdr = s.substr(0, 2);
if (hdr == "0x")
return (sscanf(s.substr(2).c_str(), "%x", &value) == 1);
else if (s[0] == '$')
return (sscanf(s.substr(1).c_str(), "%x", &value) == 1);
#if 0
else if (s[0] == '@')
return (sscanf(s.substr(1).c_str(), "%o", &value) == 1);
#endif
else if (s[0] == '\'' && s.size() > 1)
{
// this might be too primitive - typical C style things like '\t'
// aren't caught correctly.
value = s[1];
return true;
}
else if (hdr == "0b")
{
for (string::size_type i = 2; i < s.size(); i++)
{
char c = s[i];
if (c >= '0' && c <= '1')
value = (value << 1) + (c - '0');
else
#if 1
// terminate on invalid binary sequence
return false;
#else
// allow base class to check - might be a hex constant without 0x
break;
#endif
}
}
// allow base class to check for others
return Disassembler::String2Number(s, value);
}
/*****************************************************************************/
/* Number2String : converts a number to a string in a variety of formats */
/*****************************************************************************/
string DasmAvr8::Number2String
(
adr_t value,
int nDigits,
adr_t addr,
int bus
)
{
string s;
/* Standard formats for known AVR8 assemblers :
- a character is enclosed in '
- a binary has a leading 0b
- a hex constant has a leading 0x
*/
MemAttribute::Type memType = GetCellType(addr, bus);
MemAttribute::Display disp;
bool bSigned = false;
if (memType == MemAttribute::CellUntyped)
disp = MemAttribute::DefaultDisplay;
else
{
disp = GetDisplay(addr, bus);
bSigned = IsSigned(addr, bus);
}
if (disp == MemAttribute::DefaultDisplay)
disp = defaultDisplay;
adr_t rel;
int relBus;
MemAttributeAvr8::RelType rt = GetRelative(addr, rel, relBus, bus);
if (rt != MemAttributeAvr8::RelUntyped)
{
// deal with LOW()/HIGH() in data (8bit) or code (16bit) format
if (relBus == Avr8BusTypes)
relBus = bus;
Label *lbl = (rel == NO_ADDRESS) ? NULL : FindLabel(rel, Untyped, relBus);
if (lbl)
{
string s = Label2String(rel, 4, true, addr, relBus);
if ((s.find_first_of("+-") != string::npos) &&
(rt == MemAttributeAvr8::RelLowMinus ||
rt == MemAttributeAvr8::RelHighMinus ||
rt == MemAttributeAvr8::RelLow2 ||
rt == MemAttributeAvr8::RelHigh2))
s = "(" + s + ")";
if (rt == MemAttributeAvr8::RelLow2 ||
rt == MemAttributeAvr8::RelHigh2)
{
if (avr_gcc)
s = "gs(" + s + ")";
else
s += ">>1";
}
switch (rt)
{
case MemAttributeAvr8::RelLow :
case MemAttributeAvr8::RelLowMinus :
case MemAttributeAvr8::RelLow2 :
s = sformat("%s(%s%s)",
MnemoCase(avr_gcc ? "lo8" : "LOW").c_str(),
(rt == MemAttributeAvr8::RelLowMinus) ? "-" : "",
s.c_str());
return s;
case MemAttributeAvr8::RelHigh :
case MemAttributeAvr8::RelHighMinus :
case MemAttributeAvr8::RelHigh2 :
s = sformat("%s(%s%s)",
MnemoCase(avr_gcc ? "hi8" : "HIGH").c_str(),
(rt == MemAttributeAvr8::RelHighMinus) ? "-" : "",
s.c_str());
return s;
default : // keep gcc happy
break;
}
}
}
if ((nDigits == 2) && /* if 2-digit value */
(disp == MemAttribute::Char)) /* and character output requested */
{
if (isprint(value))
s = sformat("'%c'", value);
else
s = sformat("0x%02x", value);
}
else if (disp == MemAttribute::Binary) /* if a binary */
{
int nBit;
nDigits *= 4; /* convert from digits to bits */
s = "0b"; /* prepare a binary value */
/* now do for all bits */
for (nBit = nDigits - 1; nBit >= 0; nBit--)
s.push_back('0' + (!!(value & (1 << nBit))));
}
else if (disp == MemAttribute::Hex) /* if hex */
s = sformat("0x%0*x", nDigits, value);/* prepare a hex value */
#if 0
else if (disp == MemAttribute::Octal) /* if octal display */
s = sformat("@%0*o", (nDigits * 4) + 2 / 3, value);
#endif
else /* otherwise */
{