// license:BSD-3-Clause // copyright-holders:Ernesto Corvi /******************************************************************************* mb88dasm.c Core implementation for the portable Fujitsu MB88xx series MCU disassembler. Written by Ernesto Corvi *******************************************************************************/ #include "emu.h" #include "mb88dasm.h" u32 mb88_disassembler::opcode_alignment() const { return 1; } offs_t mb88_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { unsigned startpc = pc; uint8_t op = opcodes.r8(pc++); uint8_t arg = opcodes.r8(pc); switch( op ) { case 0x00: util::stream_format( stream, "NOP" ); break; case 0x01: util::stream_format( stream, "OUTO" ); break; case 0x02: util::stream_format( stream, "OUTP" ); break; case 0x03: util::stream_format( stream, "OUT" ); break; case 0x04: util::stream_format( stream, "TAY" ); break; case 0x05: util::stream_format( stream, "TATH" ); break; case 0x06: util::stream_format( stream, "TATL" ); break; case 0x07: util::stream_format( stream, "TAS" ); break; case 0x08: util::stream_format( stream, "ICY" ); break; case 0x09: util::stream_format( stream, "ICM" ); break; case 0x0A: util::stream_format( stream, "STIC" ); break; case 0x0B: util::stream_format( stream, "X" ); break; case 0x0C: util::stream_format( stream, "ROL" ); break; case 0x0D: util::stream_format( stream, "L" ); break; case 0x0E: util::stream_format( stream, "ADC" ); break; case 0x0F: util::stream_format( stream, "AND" ); break; case 0x10: util::stream_format( stream, "DAA" ); break; case 0x11: util::stream_format( stream, "DAS" ); break; case 0x12: util::stream_format( stream, "INK" ); break; case 0x13: util::stream_format( stream, "IN" ); break; case 0x14: util::stream_format( stream, "TYA" ); break; case 0x15: util::stream_format( stream, "TTHA" ); break; case 0x16: util::stream_format( stream, "TTLA" ); break; case 0x17: util::stream_format( stream, "TSA" ); break; case 0x18: util::stream_format( stream, "DCY" ); break; case 0x19: util::stream_format( stream, "DCM" ); break; case 0x1A: util::stream_format( stream, "STDC" ); break; case 0x1B: util::stream_format( stream, "XX" ); break; case 0x1C: util::stream_format( stream, "ROR" ); break; case 0x1D: util::stream_format( stream, "ST" ); break; case 0x1E: util::stream_format( stream, "SBC" ); break; case 0x1F: util::stream_format( stream, "OR" ); break; case 0x20: util::stream_format( stream, "SETR" ); break; case 0x21: util::stream_format( stream, "SETC" ); break; case 0x22: util::stream_format( stream, "RSTR" ); break; case 0x23: util::stream_format( stream, "RSTC" ); break; case 0x24: util::stream_format( stream, "TSTR" ); break; case 0x25: util::stream_format( stream, "TSTI" ); break; case 0x26: util::stream_format( stream, "TSTV" ); break; case 0x27: util::stream_format( stream, "TSTS" ); break; case 0x28: util::stream_format( stream, "TSTC" ); break; case 0x29: util::stream_format( stream, "TSTZ" ); break; case 0x2A: util::stream_format( stream, "STS" ); break; case 0x2B: util::stream_format( stream, "LS" ); break; case 0x2C: util::stream_format( stream, "RTS" ); break; case 0x2D: util::stream_format( stream, "NEG" ); break; case 0x2E: util::stream_format( stream, "C" ); break; case 0x2F: util::stream_format( stream, "EOR" ); break; case 0x30: case 0x31: case 0x32: case 0x33: util::stream_format( stream, "SBIT %d", op&3 ); break; case 0x34: case 0x35: case 0x36: case 0x37: util::stream_format( stream, "RBIT %d", op&3 ); break; case 0x38: case 0x39: case 0x3A: case 0x3B: util::stream_format( stream, "TBIT %d", op&3 ); break; case 0x3C: util::stream_format( stream, "RTI" ); break; case 0x3D: util::stream_format( stream, "JPA #$%02X", arg ); pc++; break; case 0x3E: util::stream_format( stream, "EN #$%02X", arg ); pc++; break; case 0x3F: util::stream_format( stream, "DIS #$%02X", arg ); pc++; break; case 0x40: case 0x41: case 0x42: case 0x43: util::stream_format( stream, "SETD %d", op&3 ); break; case 0x44: case 0x45: case 0x46: case 0x47: util::stream_format( stream, "RSTD %d", op&3 ); break; case 0x48: case 0x49: case 0x4A: case 0x4B: util::stream_format( stream, "TSTD %d", (op&3)+8 ); break; case 0x4C: case 0x4D: case 0x4E: case 0x4F: util::stream_format( stream, "TBA %d", op&3 ); break; case 0x50: case 0x51: case 0x52: case 0x53: util::stream_format( stream, "XD %d", op&3 ); break; case 0x54: case 0x55: case 0x56: case 0x57: util::stream_format( stream, "XYD %d", (op&3)+4 ); break; case 0x58: case 0x59: case 0x5A: case 0x5B: case 0x5C: case 0x5D: case 0x5E: case 0x5F: util::stream_format( stream, "LXI #$%1X", op&7 ); break; case 0x60: case 0x61: case 0x62: case 0x63: case 0x64: case 0x65: case 0x66: case 0x67: util::stream_format( stream, "CALL $%02X%02X", op&7, arg ); pc++; break; case 0x68: case 0x69: case 0x6A: case 0x6B: case 0x6C: case 0x6D: case 0x6E: case 0x6F: util::stream_format( stream, "JPL $%02X%02X", op&7, arg ); pc++; break; case 0x70: case 0x71: case 0x72: case 0x73: case 0x74: case 0x75: case 0x76: case 0x77: case 0x78: case 0x79: case 0x7A: case 0x7B: case 0x7C: case 0x7D: case 0x7E: case 0x7F: util::stream_format( stream, "AI #$%1X", op&0xf ); break; case 0x80: case 0x81: case 0x82: case 0x83: case 0x84: case 0x85: case 0x86: case 0x87: case 0x88: case 0x89: case 0x8A: case 0x8B: case 0x8C: case 0x8D: case 0x8E: case 0x8F: util::stream_format( stream, "LYI #$%1X", op&0xf ); break; case 0x90: case 0x91: case 0x92: case 0x93: case 0x94: case 0x95: case 0x96: case 0x97: case 0x98: case 0x99: case 0x9A: case 0x9B: case 0x9C: case 0x9D: case 0x9E: case 0x9F: util::stream_format( stream, "LI #$%1X", op&0xf ); break; case 0xA0: case 0xA1: case 0xA2: case 0xA3: case 0xA4: case 0xA5: case 0xA6: case 0xA7: case 0xA8: case 0xA9: case 0xAA: case 0xAB: case 0xAC: case 0xAD: case 0xAE: case 0xAF: util::stream_format( stream, "CYI #$%1X", op&0xf ); break; case 0xB0: case 0xB1: case 0xB2: case 0xB3: case 0xB4: case 0xB5: case 0xB6: case 0xB7: case 0xB8: case 0xB9: case 0xBA: case 0xBB: case 0xBC: case 0xBD: case 0xBE: case 0xBF: util::stream_format( stream, "CI #$%1X", op&0xf ); break; default: /* C0-FF */ util::stream_format( stream, "JMP $%04X", (pc&(~0x3f))+ op-0xC0 ); break; } return (pc - startpc) | SUPPORTED; }