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// license:BSD-3-Clause
// copyright-holders:hap
/*
Hitachi HMCS400 MCU family disassembler
*/
#include "emu.h"
#include "hmcs400d.h"
// constructor
hmcs400_disassembler::hmcs400_disassembler()
{
}
hmcs400_disassembler::~hmcs400_disassembler()
{
}
// common lookup tables
enum hmcs400_disassembler::e_mnemonics : unsigned
{
mILL1, mILL2,
mLAI, mLBI, mLMID, mLMIIY,
mLAB, mLBA, mLAW, mLAY, mLASPX, mLASPY, mLAMR, mXMRA,
mLWI, mLXI, mLYI, mLWA, mLXA, mLYA, mIY, mDY, mAYY, mSYY, mXSP,
mLAM, mLAMD, mLBM, mLMA, mLMAD, mLMAIY, mLMADY, mXMA, mXMAD, mXMB,
mAI, mIB, mDB, mDAA, mDAS, mNEGA, mCOMB, mROTR, mROTL, mSEC, mREC, mTC,
mAM, mAMD, mAMC, mAMCD, mSMC, mSMCD, mOR, mANM, mANMD, mORM, mORMD, mEORM, mEORMD,
mINEM, mINEMD, mANEM, mANEMD, mBNEM, mYNEI, mILEM, mILEMD, mALEM, mALEMD, mBLEM, mALEI,
mSEM, mSEMD, mREM, mREMD, mTM, mTMD,
mBR, mBRL, mJMPL, mCAL, mCALL, mTBR, mRTN, mRTNI,
mSED, mSEDD, mRED, mREDD, mTD, mTDD, mLAR, mLBR, mLRA, mLRB, mP,
mNOP, mSTS, mSBY, mSTOP
};
const char *const hmcs400_disassembler::s_mnemonics[] =
{
"?", "?",
"LAI", "LBI", "LMID", "LMIIY",
"LAB", "LBA", "LAW", "LAY", "LASPX", "LASPY", "LAMR", "XMRA",
"LWI", "LXI", "LYI", "LWA", "LXA", "LYA", "IY", "DY", "AYY", "SYY", "XSP",
"LAM", "LAMD", "LBM", "LMA", "LMAD", "LMAIY", "LMADY", "XMA", "XMAD", "XMB",
"AI", "IB", "DB", "DAA", "DAS", "NEGA", "COMB", "ROTR", "ROTL", "SEC", "REC", "TC",
"AM", "AMD", "AMC", "AMCD", "SMC", "SMCD", "OR", "ANM", "ANMD", "ORM", "ORMD", "EORM", "EORMD",
"INEM", "INEMD", "ANEM", "ANEMD", "BNEM", "YNEI", "ILEM", "ILEMD", "ALEM", "ALEMD", "BLEM", "ALEI",
"SEM", "SEMD", "REM", "REMD", "TM", "TMD",
"BR", "BRL", "JMPL", "CAL", "CALL", "TBR", "RTN", "RTNI",
"SED", "SEDD", "RED", "REDD", "TD", "TDD", "LAR", "LBR", "LRA", "LRB", "P",
"NOP", "STS", "SBY", "STOP"
};
// number of bits per opcode parameter, 99 means (XY) parameter
const s8 hmcs400_disassembler::s_bits[] =
{
0, 10,
4, 4, 14, 4,
0, 0, 10, 0, 0, 0, 4, 4,
2, 4, 4, 10, 0, 0, 0, 0, 0, 0, 99,
99, 10, 99, 99, 10, 99, 99, 99, 10, 99,
4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 10, 0, 10, 0, 10, 0, 0, 10, 0, 10, 0, 10,
4, 14, 0, 10, 0, 4, 4, 14, 0, 10, 0, 4,
2, 12, 2, 12, 2, 12,
8, 14, 14, 6, 14, 4, 0, 0,
0, 4, 0, 4, 0, 4, 4, 4, 4, 4, 4,
0, 0, 0, 0
};
const u32 hmcs400_disassembler::s_flags[] =
{
0, 0,
0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
STEP_COND, STEP_COND, 0, STEP_OVER | STEP_COND, STEP_OVER | STEP_COND, 0, STEP_OUT, STEP_OUT,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0
};
const u8 hmcs400_disassembler::hmcs400_mnemonic[0x400] =
{
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0x000
mNOP, mXSP, mXSP, mXSP, mANEM, 0, 0, 0, mAM, 0, 0, 0, mORM, 0, 0, 0,
mRTN, mRTNI, 0, 0, mALEM, 0, 0, 0, mAMC, 0, 0, 0, mEORM, 0, 0, 0,
mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM, mINEM,
mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM, mILEM,
// 0x040
mLBM, mLBM, mLBM, mLBM, mBNEM, 0, 0, 0, mLAB, 0, 0, 0, mIB, 0, 0, 0,
mLMAIY,mLMAIY,0, 0, mAYY, 0, 0, 0, mLASPY,0, 0, 0, mIY, 0, 0, 0,
mNEGA, 0, 0, 0, mRED, 0, 0, 0, mLASPX,0, 0, 0, 0, 0, 0, mTC,
mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI, mYNEI,
// 0x080
mXMA, mXMA, mXMA, mXMA, mSEM, mSEM, mSEM, mSEM, mREM, mREM, mREM, mREM, mTM, mTM, mTM, mTM,
mLAM, mLAM, mLAM, mLAM, mLMA, mLMA, mLMA, mLMA, mSMC, 0, 0, 0, mANM, 0, 0, 0,
mROTR, mROTL, 0, 0, 0, 0, mDAA, 0, 0, 0, mDAS, 0, 0, 0, 0, mLAY,
mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR, mTBR,
// 0x0c0
mXMB, mXMB, mXMB, mXMB, mBLEM, 0, 0, 0, mLBA, 0, 0, 0, 0, 0, 0, mDB,
mLMADY,mLMADY,0, 0, mSYY, 0, 0, 0, mLYA, 0, 0, 0, 0, 0, 0, mDY,
mTD, 0, 0, 0, mSED, 0, 0, 0, mLXA, 0, 0, 0, mREC, 0, 0, mSEC,
mLWI, mLWI, mLWI, mLWI, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0x100
mLAW, 1, 1, 1, mANEMD,1, 1, 1, mAMD, 1, 1, 1, mORMD, 1, 1, 1,
mLWA, 1, 1, 1, mALEMD,1, 1, 1, mAMCD, 1, 1, 1, mEORMD,1, 1, 1,
mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,mINEMD,
mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,mILEMD,
// 0x140
mCOMB, 0, 0, 0, mOR, 0, 0, 0, mSTS, 0, 0, 0, mSBY, mSTOP, 0, 0,
mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL, mJMPL,
mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL, mCALL,
mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL, mBRL,
// 0x180
mXMAD, 1, 1, 1, mSEMD, mSEMD, mSEMD, mSEMD, mREMD, mREMD, mREMD, mREMD, mTMD, mTMD, mTMD, mTMD,
mLAMD, 1, 1, 1, mLMAD, 1, 1, 1, mSMCD, 1, 1, 1, mANMD, 1, 1, 1,
mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID, mLMID,
mP, mP, mP, mP, mP, mP, mP, mP, mP, mP, mP, mP, mP, mP, mP, mP,
// 0x1c0
mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL,
mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL,
mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL,
mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL, mCAL,
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0x200
mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI, mLBI,
mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI, mLYI,
mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI, mLXI,
mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI, mLAI,
// 0x240
mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR, mLBR,
mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR, mLAR,
mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD, mREDD,
mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR, mLAMR,
// 0x280
mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI, mAI,
mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,mLMIIY,
mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD, mTDD,
mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI, mALEI,
// 0x2c0
mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB, mLRB,
mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA, mLRA,
mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD, mSEDD,
mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA, mXMRA,
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0x300
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
// 0x340
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
// 0x380
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
// 0x3c0
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR,
mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR, mBR
};
// disasm
offs_t hmcs400_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms)
{
u16 op = opcodes.r16(pc++) & 0x3ff;
u8 instr = hmcs400_mnemonic[op];
u8 bits = s_bits[instr];
int len = 1;
// special case for (XY) opcode
if (bits == 99)
{
util::stream_format(stream, "%s", s_mnemonics[instr]);
if (op & 1)
stream << "X";
if (op & 2)
stream << "Y";
}
else
{
util::stream_format(stream, "%-8s", s_mnemonics[instr]);
// opcode parameter
if (bits != 0)
{
u16 param1 = op & ((1 << (bits % 10)) - 1);
u16 param2 = 0;
if (bits >= 10)
{
len++;
param2 = params.r16(pc++) & 0x3ff;
}
if (instr >= mBR && instr <= mCALL)
{
if (instr == mBR)
param1 |= pc & 0x3f00;
else if (instr != mCAL)
param1 = param1 << 10 | param2;
util::stream_format(stream, "$%04X", param1); // ROM address
}
else if (instr != mILL2 && instr != mLAW && instr != mLWA)
{
if (bits != 10)
util::stream_format(stream, (param1 < 10) ? "%d" : "$%X", param1);
if (bits > 10)
stream << ",";
if (bits >= 10)
util::stream_format(stream, "$%03X", param2); // RAM address
}
}
}
return len | s_flags[instr] | SUPPORTED;
}
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