diff options
Diffstat (limited to 'src/devices/cpu/superfx/sfx_dasm.c')
-rw-r--r-- | src/devices/cpu/superfx/sfx_dasm.c | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/src/devices/cpu/superfx/sfx_dasm.c b/src/devices/cpu/superfx/sfx_dasm.c new file mode 100644 index 00000000000..e76e37ee003 --- /dev/null +++ b/src/devices/cpu/superfx/sfx_dasm.c @@ -0,0 +1,425 @@ +// license:BSD-3-Clause +// copyright-holders:Ryan Holtz +#include "emu.h" +#include "superfx.h" + +static char *output; + +static void ATTR_PRINTF(1,2) print(const char *fmt, ...) +{ + va_list vl; + + va_start(vl, fmt); + output += vsprintf(output, fmt, vl); + va_end(vl); +} + +offs_t superfx_dasm_one(char *buffer, offs_t pc, UINT8 op, UINT8 param0, UINT8 param1, UINT16 alt) +{ + UINT8 bytes_consumed = 1; + output = buffer; + + switch(op) + { + case 0x00: // STOP + print("STOP"); + break; + case 0x01: // NOP + print("NOP"); + break; + case 0x02: // CACHE + print("CACHE"); + break; + case 0x03: // LSR + print("LSR"); + break; + case 0x04: // ROL + print("ROL"); + break; + case 0x05: // BRA + print("BRA %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x06: // BLT + print("BLT %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x07: // BGE + print("BGE %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x08: // BNE + print("BNE %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x09: // BEQ + print("BEQ %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x0a: // BPL + print("BPL %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x0b: // BMI + print("BMI %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x0c: // BCC + print("BCC %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x0d: // BCS + print("BCS %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x0e: // BVC + print("BVC %d", (INT8)param0); + bytes_consumed = 2; + break; + case 0x0f: // BVS + print("BVS %d", (INT8)param0); + bytes_consumed = 2; + break; + + case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17: + case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f: // TO + print("TO R%d", op & 0xf); + break; + + case 0x20: case 0x21: case 0x22: case 0x23: case 0x24: case 0x25: case 0x26: case 0x27: + case 0x28: case 0x29: case 0x2a: case 0x2b: case 0x2c: case 0x2d: case 0x2e: case 0x2f: // WITH + print("WITH R%d", op & 0xf); + break; + + case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: case 0x35: + case 0x36: case 0x37: case 0x38: case 0x39: case 0x3a: case 0x3b: // STW_IR / STB_IR + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT2: + print("STW (R%d)", op & 0xf); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("STB (R%d)", op & 0xf); + break; + } + break; + + case 0x3c: // LOOP + print("LOOP"); + break; + case 0x3d: // ALT1 + print("ALT1"); + break; + case 0x3e: // ALT2 + print("ALT2"); + break; + case 0x3f: // ALT3 + print("ALT3"); + break; + + case 0x40: case 0x41: case 0x42: case 0x43: case 0x44: case 0x45: + case 0x46: case 0x47: case 0x48: case 0x49: case 0x4a: case 0x4b: // LDW_IR / LDB_IR + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT2: + print("LDW (R%d)", op & 0xf); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("LDB (R%d)", op & 0xf); + break; + } + break; + + case 0x4c: // PLOT / RPIX + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT2: + print("PLOT"); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("RPIX"); + break; + } + break; + + case 0x4d: // SWAP + print("SWAP"); + break; + + case 0x4e: // COLOR / CMODE + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT2: + print("COLOR"); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("CMODE"); + break; + } + break; + + case 0x4f: // NOT + print("NOT"); + break; + + case 0x50: case 0x51: case 0x52: case 0x53: case 0x54: case 0x55: case 0x56: case 0x57: + case 0x58: case 0x59: case 0x5a: case 0x5b: case 0x5c: case 0x5d: case 0x5e: case 0x5f: // ADD / ADC / ADDI / ADCI + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("ADD R%d", op &0xf); + break; + case SUPERFX_SFR_ALT1: + print("ADC R%d", op &0xf); + break; + case SUPERFX_SFR_ALT2: + print("ADDI R%d", op &0xf); + break; + case SUPERFX_SFR_ALT3: + print("ADCI R%d", op &0xf); + break; + } + break; + + case 0x60: case 0x61: case 0x62: case 0x63: case 0x64: case 0x65: case 0x66: case 0x67: + case 0x68: case 0x69: case 0x6a: case 0x6b: case 0x6c: case 0x6d: case 0x6e: case 0x6f: // SUB / SBC / SUBI / CMP + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("SUB R%d", op &0xf); + break; + case SUPERFX_SFR_ALT1: + print("SBC R%d", op &0xf); + break; + case SUPERFX_SFR_ALT2: + print("SUBI R%d", op &0xf); + break; + case SUPERFX_SFR_ALT3: + print("CMP R%d", op &0xf); + break; + } + break; + + case 0x70: // MERGE + print("MERGE"); + break; + + 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: // AND / BIC / ANDI / BICI + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("AND R%d", op &0xf); + break; + case SUPERFX_SFR_ALT1: + print("BIC R%d", op &0xf); + break; + case SUPERFX_SFR_ALT2: + print("ANDI R%d", op &0xf); + break; + case SUPERFX_SFR_ALT3: + print("BICI R%d", op &0xf); + break; + } + 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: // MULT / UMULT / MULTI / UMULTI + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("MULT R%d", op &0xf); + break; + case SUPERFX_SFR_ALT1: + print("UMULT R%d", op &0xf); + break; + case SUPERFX_SFR_ALT2: + print("MULTI R%d", op &0xf); + break; + case SUPERFX_SFR_ALT3: + print("UMULTI R%d", op &0xf); + break; + } + break; + + case 0x90: // SBK + print("SBK"); + break; + + case 0x91: case 0x92: case 0x93: case 0x94: // LINK + print("LINK %d", op & 0xf); + break; + + case 0x95: // SEX + print("SEX"); + break; + + case 0x96: // ASR / DIV2 + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT2: + print("ASR"); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("DIV2"); + break; + } + break; + + case 0x97: // ROR + print("ROR"); + break; + + case 0x98: case 0x99: case 0x9a: case 0x9b: case 0x9c: case 0x9d: // JMP / LJMP + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT2: + print("JMP R%d", op & 0xf); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("LJMP R%d", op & 0xf); + break; + } + break; + + case 0x9e: // LOB + print("LOB"); + break; + + case 0x9f: // FMULT / LMULT + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT2: + print("FMULT"); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("LMULT"); + break; + } + 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: // IBT / LMS / SMS / LML + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("IBT R%d,0x%02x", op & 0xf, param0); + break; + case SUPERFX_SFR_ALT2: + print("SMS R%d,(0x%04x)", op & 0xf, param0 << 1); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("LMS R%d,(0x%04x)", op & 0xf, param0 << 1); + break; + } + bytes_consumed = 2; + 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: // FROM + print("FROM R%d", op & 0xf); + break; + + case 0xc0: // HIB + print("HIB"); + break; + + case 0xc1: case 0xc2: case 0xc3: case 0xc4: case 0xc5: case 0xc6: case 0xc7: + case 0xc8: case 0xc9: case 0xca: case 0xcb: case 0xcc: case 0xcd: case 0xce: case 0xcf: // OR / XOR / ORI / XORI + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("OR R%d", op &0xf); + break; + case SUPERFX_SFR_ALT1: + print("XOR R%d", op &0xf); + break; + case SUPERFX_SFR_ALT2: + print("ORI R%d", op &0xf); + break; + case SUPERFX_SFR_ALT3: + print("XORI R%d", op &0xf); + break; + } + break; + + case 0xd0: case 0xd1: case 0xd2: case 0xd3: case 0xd4: case 0xd5: case 0xd6: case 0xd7: + case 0xd8: case 0xd9: case 0xda: case 0xdb: case 0xdc: case 0xdd: case 0xde: // INC + print("INC R%d", op & 0xf); + break; + + case 0xdf: // GETC / RAMB / ROMB + switch(alt) + { + case SUPERFX_SFR_ALT0: + case SUPERFX_SFR_ALT1: + print("GETC"); + break; + case SUPERFX_SFR_ALT2: + print("RAMB"); + break; + case SUPERFX_SFR_ALT3: + print("ROMB"); + break; + } + break; + + case 0xe0: case 0xe1: case 0xe2: case 0xe3: case 0xe4: case 0xe5: case 0xe6: case 0xe7: + case 0xe8: case 0xe9: case 0xea: case 0xeb: case 0xec: case 0xed: case 0xee: // DEC + print("DEC R%d", op & 0xf); + break; + + case 0xef: // GETB / GETBH / GETBL / GETBS + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("GETB"); + break; + case SUPERFX_SFR_ALT1: + print("GETBH"); + break; + case SUPERFX_SFR_ALT2: + print("GETBL"); + break; + case SUPERFX_SFR_ALT3: + print("GETBS"); + break; + } + break; + + case 0xf0: case 0xf1: case 0xf2: case 0xf3: case 0xf4: case 0xf5: case 0xf6: case 0xf7: + case 0xf8: case 0xf9: case 0xfa: case 0xfb: case 0xfc: case 0xfd: case 0xfe: case 0xff: // IWT / LM / SM / LM + switch(alt) + { + case SUPERFX_SFR_ALT0: + print("IWT R%d,#%02x%02x", op & 0xf, param1, param0); + bytes_consumed = 3; + break; + case SUPERFX_SFR_ALT2: + print("SM R%d", op & 0xf); + break; + case SUPERFX_SFR_ALT1: + case SUPERFX_SFR_ALT3: + print("LM R%d", op & 0xf); + break; + } + break; + } + + return bytes_consumed | DASMFLAG_SUPPORTED; +} |