// license:BSD-3-Clause // copyright-holders:Aaron Giles /* * A T11 disassembler * * Note: this is probably not the most efficient disassembler in the world :-) * * This code written by Aaron Giles (agiles@sirius.com) for the MAME project * */ #include "emu.h" #include "debugger.h" #include "t11.h" static const char *const regs[8] = { "R0", "R1", "R2", "R3", "R4", "R5", "SP", "PC" }; static const uint8_t *rombase; static offs_t pcbase; #define PARAM_WORD(v) ((v) = rombase[pc - pcbase] | (rombase[pc + 1 - pcbase] << 8), pc += 2) static unsigned MakeEA (char *ea, int lo, unsigned pc, int width) { int reg, pm; assert (width == 2 || width == 4); reg = lo & 7; switch ((lo >> 3) & 7) { case 0: sprintf (ea, "%s", regs[reg]); break; case 1: sprintf (ea, "(%s)", regs[reg]); break; case 2: if (reg == 7) { PARAM_WORD (pm); sprintf (ea, "#$%0*X", width, pm & ((width == 2) ? 0xff : 0xffff)); } else { sprintf (ea, "(%s)+", regs[reg]); } break; case 3: if (reg == 7) { PARAM_WORD (pm); sprintf (ea, "$%04X", pm &= 0xffff); } else { sprintf (ea, "@(%s)+", regs[reg]); } break; case 4: sprintf (ea, "-(%s)", regs[reg]); break; case 5: sprintf (ea, "@-(%s)", regs[reg]); break; case 6: PARAM_WORD (pm); sprintf(ea, "%s$%X(%s)", (pm&0x8000)?"-":"", (pm&0x8000)?-(signed short)pm:pm, regs[reg]); break; case 7: PARAM_WORD (pm); sprintf(ea, "@%s$%X(%s)", (pm&0x8000)?"-":"", (pm&0x8000)?-(signed short)pm:pm, regs[reg]); break; } return pc; } CPU_DISASSEMBLE(t11) { char ea1[32], ea2[32]; unsigned PC = pc; uint16_t op, lo, hi, addr; int16_t offset; uint32_t flags = 0; rombase = oprom; pcbase = pc; PARAM_WORD(op); lo = op & 077; hi = (op >> 6) & 077; switch (op & 0xffc0) { case 0x0000: switch (lo) { case 0x00: util::stream_format(stream, "HALT"); break; case 0x01: util::stream_format(stream, "WAIT"); break; case 0x02: util::stream_format(stream, "RTI"); flags = DASMFLAG_STEP_OUT; break; case 0x03: util::stream_format(stream, "BPT"); break; case 0x04: util::stream_format(stream, "IOT"); break; case 0x05: util::stream_format(stream, "RESET"); break; case 0x06: util::stream_format(stream, "RTT"); break; default: util::stream_format(stream, "???? (%04X)", op); break; } break; case 0x0040: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "JMP %s", ea1); break; case 0x0080: switch (lo & 070) { case 000: if( (lo & 7) == 7 ) util::stream_format(stream, "RTS"); else util::stream_format(stream, "RTS %s", regs[lo & 7]); flags = DASMFLAG_STEP_OUT; break; case 040: case 050: switch( lo & 15 ) { case 0x00: util::stream_format(stream, "NOP"); break; case 0x0f: util::stream_format(stream, "CCC"); break; case 0x01: util::stream_format(stream, "CEC"); break; case 0x02: util::stream_format(stream, "CEV"); break; case 0x04: util::stream_format(stream, "CEZ"); break; case 0x08: util::stream_format(stream, "CEN"); break; default: util::stream_format(stream, "Ccc #$%X", lo & 15); break; } break; case 060: case 070: switch( lo & 15 ) { case 0x00: util::stream_format(stream, "NOP"); break; case 0x0f: util::stream_format(stream, "SCC"); break; case 0x01: util::stream_format(stream, "SEC"); break; case 0x02: util::stream_format(stream, "SEV"); break; case 0x04: util::stream_format(stream, "SEZ"); break; case 0x08: util::stream_format(stream, "SEN"); break; default: util::stream_format(stream, "Scc #$%X", lo & 15); break; } break; } break; case 0x00c0: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "SWAB %s", ea1); break; case 0x0100: case 0x0140: case 0x0180: case 0x01c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BR $%04X", pc + offset); break; case 0x0200: case 0x0240: case 0x0280: case 0x02c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BNE $%04X", pc + offset); break; case 0x0300: case 0x0340: case 0x0380: case 0x03c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BEQ $%04X", pc + offset); break; case 0x0400: case 0x0440: case 0x0480: case 0x04c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BGE $%04X", pc + offset); break; case 0x0500: case 0x0540: case 0x0580: case 0x05c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BLT $%04X", pc + offset); break; case 0x0600: case 0x0640: case 0x0680: case 0x06c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BGT $%04X", pc + offset); break; case 0x0700: case 0x0740: case 0x0780: case 0x07c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BLE $%04X", pc + offset); break; case 0x0800: case 0x0840: case 0x0880: case 0x08c0: case 0x0900: case 0x0940: case 0x0980: case 0x09c0: pc = MakeEA (ea1, lo, pc, 4); if ( (hi & 7) == 7 ) util::stream_format(stream, "JSR %s", ea1); else util::stream_format(stream, "JSR %s,%s", regs[hi & 7], ea1); flags = DASMFLAG_STEP_OVER; break; case 0x0a00: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "CLR %s", ea1); break; case 0x0a40: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "COM %s", ea1); break; case 0x0a80: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "INC %s", ea1); break; case 0x0ac0: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "DEC %s", ea1); break; case 0x0b00: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "NEG %s", ea1); break; case 0x0b40: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "ADC %s", ea1); break; case 0x0b80: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "SBC %s", ea1); break; case 0x0bc0: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "TST %s", ea1); break; case 0x0c00: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "ROR %s", ea1); break; case 0x0c40: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "ROL %s", ea1); break; case 0x0c80: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "ASR %s", ea1); break; case 0x0cc0: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "ASL %s", ea1); break; /* case 0x0d00: util::stream_format(stream, "MARK #$%X", lo); break;*/ case 0x0dc0: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "SXT %s", ea1); break; case 0x1000: case 0x1040: case 0x1080: case 0x10c0: case 0x1100: case 0x1140: case 0x1180: case 0x11c0: case 0x1200: case 0x1240: case 0x1280: case 0x12c0: case 0x1300: case 0x1340: case 0x1380: case 0x13c0: case 0x1400: case 0x1440: case 0x1480: case 0x14c0: case 0x1500: case 0x1540: case 0x1580: case 0x15c0: case 0x1600: case 0x1640: case 0x1680: case 0x16c0: case 0x1700: case 0x1740: case 0x1780: case 0x17c0: case 0x1800: case 0x1840: case 0x1880: case 0x18c0: case 0x1900: case 0x1940: case 0x1980: case 0x19c0: case 0x1a00: case 0x1a40: case 0x1a80: case 0x1ac0: case 0x1b00: case 0x1b40: case 0x1b80: case 0x1bc0: case 0x1c00: case 0x1c40: case 0x1c80: case 0x1cc0: case 0x1d00: case 0x1d40: case 0x1d80: case 0x1dc0: case 0x1e00: case 0x1e40: case 0x1e80: case 0x1ec0: case 0x1f00: case 0x1f40: case 0x1f80: case 0x1fc0: pc = MakeEA (ea1, hi, pc, 4); pc = MakeEA (ea2, lo, pc, 4); if (lo == 046) /* MOV src,-(SP) */ util::stream_format(stream, "PUSH %s", ea1); else if (hi == 026) /* MOV (SP)+,buffer */ util::stream_format(stream, "POP %s", ea2); else /* all other */ util::stream_format(stream, "MOV %s,%s", ea1, ea2); break; case 0x2000: case 0x2040: case 0x2080: case 0x20c0: case 0x2100: case 0x2140: case 0x2180: case 0x21c0: case 0x2200: case 0x2240: case 0x2280: case 0x22c0: case 0x2300: case 0x2340: case 0x2380: case 0x23c0: case 0x2400: case 0x2440: case 0x2480: case 0x24c0: case 0x2500: case 0x2540: case 0x2580: case 0x25c0: case 0x2600: case 0x2640: case 0x2680: case 0x26c0: case 0x2700: case 0x2740: case 0x2780: case 0x27c0: case 0x2800: case 0x2840: case 0x2880: case 0x28c0: case 0x2900: case 0x2940: case 0x2980: case 0x29c0: case 0x2a00: case 0x2a40: case 0x2a80: case 0x2ac0: case 0x2b00: case 0x2b40: case 0x2b80: case 0x2bc0: case 0x2c00: case 0x2c40: case 0x2c80: case 0x2cc0: case 0x2d00: case 0x2d40: case 0x2d80: case 0x2dc0: case 0x2e00: case 0x2e40: case 0x2e80: case 0x2ec0: case 0x2f00: case 0x2f40: case 0x2f80: case 0x2fc0: pc = MakeEA (ea1, hi, pc, 4); pc = MakeEA (ea2, lo, pc, 4); util::stream_format(stream, "CMP %s,%s", ea1, ea2); break; case 0x3000: case 0x3040: case 0x3080: case 0x30c0: case 0x3100: case 0x3140: case 0x3180: case 0x31c0: case 0x3200: case 0x3240: case 0x3280: case 0x32c0: case 0x3300: case 0x3340: case 0x3380: case 0x33c0: case 0x3400: case 0x3440: case 0x3480: case 0x34c0: case 0x3500: case 0x3540: case 0x3580: case 0x35c0: case 0x3600: case 0x3640: case 0x3680: case 0x36c0: case 0x3700: case 0x3740: case 0x3780: case 0x37c0: case 0x3800: case 0x3840: case 0x3880: case 0x38c0: case 0x3900: case 0x3940: case 0x3980: case 0x39c0: case 0x3a00: case 0x3a40: case 0x3a80: case 0x3ac0: case 0x3b00: case 0x3b40: case 0x3b80: case 0x3bc0: case 0x3c00: case 0x3c40: case 0x3c80: case 0x3cc0: case 0x3d00: case 0x3d40: case 0x3d80: case 0x3dc0: case 0x3e00: case 0x3e40: case 0x3e80: case 0x3ec0: case 0x3f00: case 0x3f40: case 0x3f80: case 0x3fc0: pc = MakeEA (ea1, hi, pc, 4); pc = MakeEA (ea2, lo, pc, 4); util::stream_format(stream, "BIT %s,%s", ea1, ea2); break; case 0x4000: case 0x4040: case 0x4080: case 0x40c0: case 0x4100: case 0x4140: case 0x4180: case 0x41c0: case 0x4200: case 0x4240: case 0x4280: case 0x42c0: case 0x4300: case 0x4340: case 0x4380: case 0x43c0: case 0x4400: case 0x4440: case 0x4480: case 0x44c0: case 0x4500: case 0x4540: case 0x4580: case 0x45c0: case 0x4600: case 0x4640: case 0x4680: case 0x46c0: case 0x4700: case 0x4740: case 0x4780: case 0x47c0: case 0x4800: case 0x4840: case 0x4880: case 0x48c0: case 0x4900: case 0x4940: case 0x4980: case 0x49c0: case 0x4a00: case 0x4a40: case 0x4a80: case 0x4ac0: case 0x4b00: case 0x4b40: case 0x4b80: case 0x4bc0: case 0x4c00: case 0x4c40: case 0x4c80: case 0x4cc0: case 0x4d00: case 0x4d40: case 0x4d80: case 0x4dc0: case 0x4e00: case 0x4e40: case 0x4e80: case 0x4ec0: case 0x4f00: case 0x4f40: case 0x4f80: case 0x4fc0: pc = MakeEA (ea1, hi, pc, 4); pc = MakeEA (ea2, lo, pc, 4); util::stream_format(stream, "BIC %s,%s", ea1, ea2); break; case 0x5000: case 0x5040: case 0x5080: case 0x50c0: case 0x5100: case 0x5140: case 0x5180: case 0x51c0: case 0x5200: case 0x5240: case 0x5280: case 0x52c0: case 0x5300: case 0x5340: case 0x5380: case 0x53c0: case 0x5400: case 0x5440: case 0x5480: case 0x54c0: case 0x5500: case 0x5540: case 0x5580: case 0x55c0: case 0x5600: case 0x5640: case 0x5680: case 0x56c0: case 0x5700: case 0x5740: case 0x5780: case 0x57c0: case 0x5800: case 0x5840: case 0x5880: case 0x58c0: case 0x5900: case 0x5940: case 0x5980: case 0x59c0: case 0x5a00: case 0x5a40: case 0x5a80: case 0x5ac0: case 0x5b00: case 0x5b40: case 0x5b80: case 0x5bc0: case 0x5c00: case 0x5c40: case 0x5c80: case 0x5cc0: case 0x5d00: case 0x5d40: case 0x5d80: case 0x5dc0: case 0x5e00: case 0x5e40: case 0x5e80: case 0x5ec0: case 0x5f00: case 0x5f40: case 0x5f80: case 0x5fc0: pc = MakeEA (ea1, hi, pc, 4); pc = MakeEA (ea2, lo, pc, 4); util::stream_format(stream, "BIS %s,%s", ea1, ea2); break; case 0x6000: case 0x6040: case 0x6080: case 0x60c0: case 0x6100: case 0x6140: case 0x6180: case 0x61c0: case 0x6200: case 0x6240: case 0x6280: case 0x62c0: case 0x6300: case 0x6340: case 0x6380: case 0x63c0: case 0x6400: case 0x6440: case 0x6480: case 0x64c0: case 0x6500: case 0x6540: case 0x6580: case 0x65c0: case 0x6600: case 0x6640: case 0x6680: case 0x66c0: case 0x6700: case 0x6740: case 0x6780: case 0x67c0: case 0x6800: case 0x6840: case 0x6880: case 0x68c0: case 0x6900: case 0x6940: case 0x6980: case 0x69c0: case 0x6a00: case 0x6a40: case 0x6a80: case 0x6ac0: case 0x6b00: case 0x6b40: case 0x6b80: case 0x6bc0: case 0x6c00: case 0x6c40: case 0x6c80: case 0x6cc0: case 0x6d00: case 0x6d40: case 0x6d80: case 0x6dc0: case 0x6e00: case 0x6e40: case 0x6e80: case 0x6ec0: case 0x6f00: case 0x6f40: case 0x6f80: case 0x6fc0: pc = MakeEA (ea1, hi, pc, 4); pc = MakeEA (ea2, lo, pc, 4); util::stream_format(stream, "ADD %s,%s", ea1, ea2); break; case 0x7800: case 0x7840: case 0x7880: case 0x78c0: case 0x7900: case 0x7940: case 0x7980: case 0x79c0: pc = MakeEA (ea1, lo, pc, 4); util::stream_format(stream, "XOR %s,%s", regs[hi & 7], ea1); break; case 0x7e00: case 0x7e40: case 0x7e80: case 0x7ec0: case 0x7f00: case 0x7f40: case 0x7f80: case 0x7fc0: addr = (pc + 2 - 2 * lo) & 0xffff; util::stream_format(stream, "SOB %s,$%X", regs[hi & 7], addr); break; case 0x8000: case 0x8040: case 0x8080: case 0x80c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BPL $%04X", pc + offset); break; case 0x8100: case 0x8140: case 0x8180: case 0x81c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BMI $%04X", pc + offset); break; case 0x8200: case 0x8240: case 0x8280: case 0x82c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BHI $%04X", pc + offset); break; case 0x8300: case 0x8340: case 0x8380: case 0x83c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BLOS $%04X", pc + offset); break; case 0x8400: case 0x8440: case 0x8480: case 0x84c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BVC $%04X", pc + offset); break; case 0x8500: case 0x8540: case 0x8580: case 0x85c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BVS $%04X", pc + offset); break; case 0x8600: case 0x8640: case 0x8680: case 0x86c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BCC $%04X", pc + offset); break; case 0x8700: case 0x8740: case 0x8780: case 0x87c0: offset = 2 * (int8_t)(op & 0xff); util::stream_format(stream, "BCS $%04X", pc + offset); break; case 0x8800: case 0x8840: case 0x8880: case 0x88c0: util::stream_format(stream, "EMT #$%02X", op & 0xff); break; case 0x8900: case 0x8940: case 0x8980: case 0x89c0: util::stream_format(stream, "TRAP #$%02X", op & 0xff); break; case 0x8a00: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "CLRB %s", ea1); break; case 0x8a40: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "COMB %s", ea1); break; case 0x8a80: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "INCB %s", ea1); break; case 0x8ac0: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "DECB %s", ea1); break; case 0x8b00: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "NEGB %s", ea1); break; case 0x8b40: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "ADCB %s", ea1); break; case 0x8b80: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "SBCB %s", ea1); break; case 0x8bc0: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "TSTB %s", ea1); break; case 0x8c00: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "RORB %s", ea1); break; case 0x8c40: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "ROLB %s", ea1); break; case 0x8c80: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "ASRB %s", ea1); break; case 0x8cc0: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "ASLB %s", ea1); break; case 0x8d00: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "MTPS %s", ea1); break; case 0x8dc0: pc = MakeEA (ea1, lo, pc, 2); util::stream_format(stream, "MFPS %s", ea1); break; case 0x9000: case 0x9040: case 0x9080: case 0x90c0: case 0x9100: case 0x9140: case 0x9180: case 0x91c0: case 0x9200: case 0x9240: case 0x9280: case 0x92c0: case 0x9300: case 0x9340: case 0x9380: case 0x93c0: case 0x9400: case 0x9440: case 0x9480: case 0x94c0: case 0x9500: case 0x9540: case 0x9580: case 0x95c0: case 0x9600: case 0x9640: case 0x9680: case 0x96c0: case 0x9700: case 0x9740: case 0x9780: case 0x97c0: case 0x9800: case 0x9840: case 0x9880: case 0x98c0: case 0x9900: case 0x9940: case 0x9980: case 0x99c0: case 0x9a00: case 0x9a40: case 0x9a80: case 0x9ac0: case 0x9b00: case 0x9b40: case 0x9b80: case 0x9bc0: case 0x9c00: case 0x9c40: case 0x9c80: case 0x9cc0: case 0x9d00: case 0x9d40: case 0x9d80: case 0x9dc0: case 0x9e00: case 0x9e40: case 0x9e80: case 0x9ec0: case 0x9f00: case 0x9f40: case 0x9f80: case 0x9fc0: pc = MakeEA (ea1, hi, pc, 2); pc = MakeEA (ea2, lo, pc, 2); util::stream_format(stream, "MOVB %s,%s", ea1, ea2); break; case 0xa000: case 0xa040: case 0xa080: case 0xa0c0: case 0xa100: case 0xa140: case 0xa180: case 0xa1c0: case 0xa200: case 0xa240: case 0xa280: case 0xa2c0: case 0xa300: case 0xa340: case 0xa380: case 0xa3c0: case 0xa400: case 0xa440: case 0xa480: case 0xa4c0: case 0xa500: case 0xa540: case 0xa580: case 0xa5c0: case 0xa600: case 0xa640: case 0xa680: case 0xa6c0: case 0xa700: case 0xa740: case 0xa780: case 0xa7c0: case 0xa800: case 0xa840: case 0xa880: case 0xa8c0: case 0xa900: case 0xa940: case 0xa980: case 0xa9c0: case 0xaa00: case 0xaa40: case 0xaa80: case 0xaac0: case 0xab00: case 0xab40: case 0xab80: case 0xabc0: case 0xac00: case 0xac40: case 0xac80: case 0xacc0: case 0xad00: case 0xad40: case 0xad80: case 0xadc0: case 0xae00: case 0xae40: case 0xae80: case 0xaec0: case 0xaf00: case 0xaf40: case 0xaf80: case 0xafc0: pc = MakeEA (ea1, hi, pc, 2); pc = MakeEA (ea2, lo, pc, 2); util::stream_format(stream, "CMPB %s,%s", ea1, ea2); break; case 0xb000: case 0xb040: case 0xb080: case 0xb0c0: case 0xb100: case 0xb140: case 0xb180: case 0xb1c0: case 0xb200: case 0xb240: case 0xb280: case 0xb2c0: case 0xb300: case 0xb340: case 0xb380: case 0xb3c0: case 0xb400: case 0xb440: case 0xb480: case 0xb4c0: case 0xb500: case 0xb540: case 0xb580: case 0xb5c0: case 0xb600: case 0xb640: case 0xb680: case 0xb6c0: case 0xb700: case 0xb740: case 0xb780: case 0xb7c0: case 0xb800: case 0xb840: case 0xb880: case 0xb8c0: case 0xb900: case 0xb940: case 0xb980: case 0xb9c0: case 0xba00: case 0xba40: case 0xba80: case 0xbac0: case 0xbb00: case 0xbb40: case 0xbb80: case 0xbbc0: case 0xbc00: case 0xbc40: case 0xbc80: case 0xbcc0: case 0xbd00: case 0xbd40: case 0xbd80: case 0xbdc0: case 0xbe00: case 0xbe40: case 0xbe80: case 0xbec0: case 0xbf00: case 0xbf40: case 0xbf80: case 0xbfc0: pc = MakeEA (ea1, hi, pc, 2); pc = MakeEA (ea2, lo, pc, 2); util::stream_format(stream, "BITB %s,%s", ea1, ea2); break; case 0xc000: case 0xc040: case 0xc080: case 0xc0c0: case 0xc100: case 0xc140: case 0xc180: case 0xc1c0: case 0xc200: case 0xc240: case 0xc280: case 0xc2c0: case 0xc300: case 0xc340: case 0xc380: case 0xc3c0: case 0xc400: case 0xc440: case 0xc480: case 0xc4c0: case 0xc500: case 0xc540: case 0xc580: case 0xc5c0: case 0xc600: case 0xc640: case 0xc680: case 0xc6c0: case 0xc700: case 0xc740: case 0xc780: case 0xc7c0: case 0xc800: case 0xc840: case 0xc880: case 0xc8c0: case 0xc900: case 0xc940: case 0xc980: case 0xc9c0: case 0xca00: case 0xca40: case 0xca80: case 0xcac0: case 0xcb00: case 0xcb40: case 0xcb80: case 0xcbc0: case 0xcc00: case 0xcc40: case 0xcc80: case 0xccc0: case 0xcd00: case 0xcd40: case 0xcd80: case 0xcdc0: case 0xce00: case 0xce40: case 0xce80: case 0xcec0: case 0xcf00: case 0xcf40: case 0xcf80: case 0xcfc0: pc = MakeEA (ea1, hi, pc, 2); pc = MakeEA (ea2, lo, pc, 2); util::stream_format(stream, "BICB %s,%s", ea1, ea2); break; case 0xd000: case 0xd040: case 0xd080: case 0xd0c0: case 0xd100: case 0xd140: case 0xd180: case 0xd1c0: case 0xd200: case 0xd240: case 0xd280: case 0xd2c0: case 0xd300: case 0xd340: case 0xd380: case 0xd3c0: case 0xd400: case 0xd440: case 0xd480: case 0xd4c0: case 0xd500: case 0xd540: case 0xd580: case 0xd5c0: case 0xd600: case 0xd640: case 0xd680: case 0xd6c0: case 0xd700: case 0xd740: case 0xd780: case 0xd7c0: case 0xd800: case 0xd840: case 0xd880: case 0xd8c0: case 0xd900: case 0xd940: case 0xd980: case 0xd9c0: case 0xda00: case 0xda40: case 0xda80: case 0xdac0: case 0xdb00: case 0xdb40: case 0xdb80: case 0xdbc0: case 0xdc00: case 0xdc40: case 0xdc80: case 0xdcc0: case 0xdd00: case 0xdd40: case 0xdd80: case 0xddc0: case 0xde00: case 0xde40: case 0xde80: case 0xdec0: case 0xdf00: case 0xdf40: case 0xdf80: case 0xdfc0: pc = MakeEA (ea1, hi, pc, 2); pc = MakeEA (ea2, lo, pc, 2); util::stream_format(stream, "BISB %s,%s", ea1, ea2); break; case 0xe000: case 0xe040: case 0xe080: case 0xe0c0: case 0xe100: case 0xe140: case 0xe180: case 0xe1c0: case 0xe200: case 0xe240: case 0xe280: case 0xe2c0: case 0xe300: case 0xe340: case 0xe380: case 0xe3c0: case 0xe400: case 0xe440: case 0xe480: case 0xe4c0: case 0xe500: case 0xe540: case 0xe580: case 0xe5c0: case 0xe600: case 0xe640: case 0xe680: case 0xe6c0: case 0xe700: case 0xe740: case 0xe780: case 0xe7c0: case 0xe800: case 0xe840: case 0xe880: case 0xe8c0: case 0xe900: case 0xe940: case 0xe980: case 0xe9c0: case 0xea00: case 0xea40: case 0xea80: case 0xeac0: case 0xeb00: case 0xeb40: case 0xeb80: case 0xebc0: case 0xec00: case 0xec40: case 0xec80: case 0xecc0: case 0xed00: case 0xed40: case 0xed80: case 0xedc0: case 0xee00: case 0xee40: case 0xee80: case 0xeec0: case 0xef00: case 0xef40: case 0xef80: case 0xefc0: pc = MakeEA (ea1, hi, pc, 4); pc = MakeEA (ea2, lo, pc, 4); util::stream_format(stream, "SUB %s,%s", ea1, ea2); break; default: util::stream_format(stream, "???? (%06o)", op); break; } return (pc - PC) | flags | DASMFLAG_SUPPORTED; }