// license:BSD-3-Clause // copyright-holders:Ville Linde #include "emu.h" #include "dis32051.h" const char *const tms32051_disassembler::zl_condition_codes[] = { // bit 3, 2 (ZL), bit 1, 0 (MASK) "", // Z=0, L=0, ZM=0, ZL=0 "gt", // Z=0, L=0, ZM=0, ZL=1 "neq", // Z=0, L=0, ZM=1, ZL=0 "gt", // Z=0, L=0, ZM=1, ZL=1 "", // Z=0, L=1, ZM=0, ZL=0 "lt", // Z=0, L=1, ZM=0, ZL=1 "neq", // Z=0, L=1, ZM=1, ZL=0 "lt", // Z=0, L=1, ZM=1, ZL=1 "", // Z=1, L=0, ZM=0, ZL=0 "gt", // Z=1, L=0, ZM=0, ZL=1 "eq", // Z=1, L=0, ZM=1, ZL=0 "geq", // Z=1, L=0, ZM=1, ZL=1 "", // Z=1, L=1, ZM=0, ZL=0 "lt", // Z=1, L=1, ZM=0, ZL=1 "eq", // Z=1, L=1, ZM=1, ZL=0 "leq", // Z=1, L=1, ZM=1, ZL=1 }; const char *const tms32051_disassembler::cv_condition_codes[16] = { "", // V=0, C=0, VM=0, CM=0 "nc", // V=0, C=0, VM=0, CM=1 "nov", // V=0, C=0, VM=1, CM=0 "nc nov", // V=0, C=0, VM=1, CM=1 "", // V=0, C=1, VM=0, CM=0 "c", // V=0, C=1, VM=0, CM=1 "nov", // V=0, C=1, VM=1, CM=0 "c nov", // V=0, C=1, VM=1, CM=1 "", // V=1, C=0, VM=0, CM=0 "nc", // V=1, C=0, VM=0, CM=1 "ov", // V=1, C=0, VM=1, CM=0 "nc ov", // V=1, C=0, VM=1, CM=1 "", // V=1, C=1, VM=0, CM=0 "c", // V=1, C=1, VM=0, CM=1 "ov", // V=1, C=1, VM=1, CM=0 "c ov", // V=1, C=1, VM=1, CM=1 }; const char *const tms32051_disassembler::tp_condition_codes[4] = { "bio", "tc", "ntc", "" }; uint16_t tms32051_disassembler::FETCH(offs_t &npc, const data_buffer &opcodes) { return opcodes.r16(npc++); } std::string tms32051_disassembler::GET_ADDRESS(int addr_mode, int address) { if (addr_mode) // Indirect addressing { int nar = address & 0x7; switch ((address >> 3) & 0xf) { case 0x0: return util::string_format("*"); case 0x1: return util::string_format("*, ar%d", nar); case 0x2: return util::string_format("*-"); case 0x3: return util::string_format("*-, ar%d", nar); case 0x4: return util::string_format("*+"); case 0x5: return util::string_format("*+, ar%d", nar); case 0x8: return util::string_format("*br0-"); case 0x9: return util::string_format("*br0-, ar%d", nar); case 0xa: return util::string_format("*0-"); case 0xb: return util::string_format("*0-, ar%d", nar); case 0xc: return util::string_format("*0+"); case 0xd: return util::string_format("*0+, ar%d", nar); case 0xe: return util::string_format("*br0+"); case 0xf: return util::string_format("*br0+, ar%d", nar); default: return util::string_format("??? (indirect)"); } } else // Direct addressing { return util::string_format("#%02X", address); } } std::string tms32051_disassembler::GET_SHIFT(int shift) { if (shift > 0) { return util::string_format(", %d", shift); } else { return ""; } } void tms32051_disassembler::print_condition_codes(bool pp, int zl, int cv, int tp) { if (*(zl_condition_codes[zl]) != 0) { if (pp) util::stream_format(*output, ", "); util::stream_format(*output, "%s", zl_condition_codes[zl]); pp = true; } if (*(cv_condition_codes[cv]) != 0) { if (pp) util::stream_format(*output, ", "); util::stream_format(*output, "%s", cv_condition_codes[cv]); pp = true; } if (*(tp_condition_codes[tp]) != 0) { if (pp) util::stream_format(*output, ", "); util::stream_format(*output, "%s", tp_condition_codes[tp]); } } void tms32051_disassembler::dasm_group_be(uint16_t opcode, offs_t &npc, const data_buffer &opcodes) { int subop = opcode & 0xff; switch (subop) { case 0x00: util::stream_format(*output, "abs"); break; case 0x01: util::stream_format(*output, "cmpl"); break; case 0x02: util::stream_format(*output, "neg"); break; case 0x03: util::stream_format(*output, "pac"); break; case 0x04: util::stream_format(*output, "apac"); break; case 0x05: util::stream_format(*output, "spac"); break; case 0x09: util::stream_format(*output, "sfl"); break; case 0x0a: util::stream_format(*output, "sfr"); break; case 0x0c: util::stream_format(*output, "rol"); break; case 0x0d: util::stream_format(*output, "ror"); break; case 0x10: util::stream_format(*output, "addb"); break; case 0x11: util::stream_format(*output, "adcb"); break; case 0x12: util::stream_format(*output, "andb"); break; case 0x13: util::stream_format(*output, "orb"); break; case 0x14: util::stream_format(*output, "rolb"); break; case 0x15: util::stream_format(*output, "rorb"); break; case 0x16: util::stream_format(*output, "sflb"); break; case 0x17: util::stream_format(*output, "sfrb"); break; case 0x18: util::stream_format(*output, "sbb"); break; case 0x19: util::stream_format(*output, "sbbb"); break; case 0x1a: util::stream_format(*output, "xorb"); break; case 0x1b: util::stream_format(*output, "crgt"); break; case 0x1c: util::stream_format(*output, "crlt"); break; case 0x1d: util::stream_format(*output, "exar"); break; case 0x1e: util::stream_format(*output, "sacb"); break; case 0x1f: util::stream_format(*output, "lacb"); break; case 0x20: util::stream_format(*output, "bacc"); break; case 0x21: util::stream_format(*output, "baccd"); break; case 0x22: util::stream_format(*output, "idle"); break; case 0x23: util::stream_format(*output, "idle2"); break; case 0x30: util::stream_format(*output, "cala"); break; case 0x32: util::stream_format(*output, "pop"); break; case 0x38: util::stream_format(*output, "reti"); break; case 0x3a: util::stream_format(*output, "rete"); break; case 0x3c: util::stream_format(*output, "push"); break; case 0x3d: util::stream_format(*output, "calad"); break; case 0x40: util::stream_format(*output, "clrc intm"); break; case 0x41: util::stream_format(*output, "setc intm"); break; case 0x42: util::stream_format(*output, "clrc ovm"); break; case 0x43: util::stream_format(*output, "setc ovm"); break; case 0x44: util::stream_format(*output, "clrc cnf"); break; case 0x45: util::stream_format(*output, "setc cnf"); break; case 0x46: util::stream_format(*output, "clrc sxm"); break; case 0x47: util::stream_format(*output, "setc sxm"); break; case 0x48: util::stream_format(*output, "clrc hold"); break; case 0x49: util::stream_format(*output, "setc hold"); break; case 0x4a: util::stream_format(*output, "clrc tc"); break; case 0x4b: util::stream_format(*output, "setc tc"); break; case 0x4c: util::stream_format(*output, "clrc xf"); break; case 0x4d: util::stream_format(*output, "setc xf"); break; case 0x4e: util::stream_format(*output, "clrc carry"); break; case 0x4f: util::stream_format(*output, "setc carry"); break; case 0x51: util::stream_format(*output, "trap"); break; case 0x52: util::stream_format(*output, "nmi"); break; case 0x58: util::stream_format(*output, "zpr"); break; case 0x59: util::stream_format(*output, "zap"); break; case 0x5a: util::stream_format(*output, "sath"); break; case 0x5b: util::stream_format(*output, "satl"); 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: 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(*output, "intr %d", opcode & 0x1f); break; case 0x80: util::stream_format(*output, "mpy #%04X", FETCH(npc, opcodes)); break; case 0x81: util::stream_format(*output, "and #%04X", FETCH(npc, opcodes) << 16); break; case 0x82: util::stream_format(*output, "or #%04X", FETCH(npc, opcodes) << 16); break; case 0x83: util::stream_format(*output, "xor #%04X", FETCH(npc, opcodes) << 16); break; case 0xc4: util::stream_format(*output, "rpt #%04X", FETCH(npc, opcodes)); break; case 0xc5: util::stream_format(*output, "rptz #%04X", FETCH(npc, opcodes)); break; case 0xc6: util::stream_format(*output, "rptb #%04X", FETCH(npc, opcodes)); break; default: util::stream_format(*output, "??? (group be)"); break; } } void tms32051_disassembler::dasm_group_bf(uint16_t opcode, offs_t &npc, const data_buffer &opcodes) { int subop = (opcode >> 4) & 0xf; int shift = opcode & 0xf; switch (subop) { case 0x0: { if (opcode & 0x8) { util::stream_format(*output, "lar ar%d, #%04X", opcode & 0x7, FETCH(npc, opcodes)); } else { util::stream_format(*output, "spm #%02X", opcode & 0x3); } break; } case 0x4: { switch (opcode & 0x3) { case 0: util::stream_format(*output, "cmpr ar = arcr"); break; case 1: util::stream_format(*output, "cmpr ar < arcr"); break; case 2: util::stream_format(*output, "cmpr ar > arcr"); break; case 3: util::stream_format(*output, "cmpr ar != arcr"); break; } break; } case 0x8: util::stream_format(*output, "lacc #%04X", FETCH(npc, opcodes) << shift); break; case 0x9: util::stream_format(*output, "add #%04X", FETCH(npc, opcodes) << shift); break; case 0xa: util::stream_format(*output, "sub #%04X", FETCH(npc, opcodes) << shift); break; case 0xb: util::stream_format(*output, "and #%04X", FETCH(npc, opcodes) << shift); break; case 0xc: util::stream_format(*output, "or #%04X", FETCH(npc, opcodes) << shift); break; case 0xd: util::stream_format(*output, "xor #%04X", FETCH(npc, opcodes) << shift); break; case 0xe: util::stream_format(*output, "bsar %d", shift+1); break; default: util::stream_format(*output, "??? (group bf)"); break; } } u32 tms32051_disassembler::opcode_alignment() const { return 1; } offs_t tms32051_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { uint32_t flags = 0; uint16_t opcode; int baseop; int address, addr_mode; offs_t npc = pc; output = &stream; opcode = FETCH(npc, opcodes); baseop = (opcode >> 8) & 0xff; addr_mode = (opcode >> 7) & 0x1; address = opcode & 0x7f; switch (baseop) { case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07: { util::stream_format(*output, "lar ar%d, %s", (opcode >> 8) & 0x7, GET_ADDRESS(addr_mode, address)); break; } case 0x08: util::stream_format(*output, "lamm %s", GET_ADDRESS(addr_mode, address)); break; case 0x09: util::stream_format(*output, "smmr %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0x0a: util::stream_format(*output, "subc %s", GET_ADDRESS(addr_mode, address)); break; case 0x0b: util::stream_format(*output, "rpt %s", GET_ADDRESS(addr_mode, address)); break; case 0x0c: util::stream_format(*output, "out %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0x0d: util::stream_format(*output, "ldp %s", GET_ADDRESS(addr_mode, address)); break; case 0x0e: util::stream_format(*output, "lst 0, %s", GET_ADDRESS(addr_mode, address)); break; case 0x0f: util::stream_format(*output, "lst 1, %s", GET_ADDRESS(addr_mode, address)); 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: { util::stream_format(*output, "lacc %s %s", GET_ADDRESS(addr_mode, address), GET_SHIFT((opcode >> 8) & 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: { util::stream_format(*output, "add %s %s", GET_ADDRESS(addr_mode, address), GET_SHIFT((opcode >> 8) & 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: case 0x3c: case 0x3d: case 0x3e: case 0x3f: { util::stream_format(*output, "sub %s %s", GET_ADDRESS(addr_mode, address), GET_SHIFT((opcode >> 8) & 0xf)); 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: case 0x4c: case 0x4d: case 0x4e: case 0x4f: { util::stream_format(*output, "bit %d, %s", (opcode >> 8) & 0xf, GET_ADDRESS(addr_mode, address)); break; } case 0x50: util::stream_format(*output, "mpya %s", GET_ADDRESS(addr_mode, address)); break; case 0x51: util::stream_format(*output, "mpys %s", GET_ADDRESS(addr_mode, address)); break; case 0x52: util::stream_format(*output, "sqra %s", GET_ADDRESS(addr_mode, address)); break; case 0x53: util::stream_format(*output, "sqrs %s", GET_ADDRESS(addr_mode, address)); break; case 0x54: util::stream_format(*output, "mpy %s", GET_ADDRESS(addr_mode, address)); break; case 0x55: util::stream_format(*output, "mpyu %s", GET_ADDRESS(addr_mode, address)); break; case 0x57: util::stream_format(*output, "bldp %s", GET_ADDRESS(addr_mode, address)); break; case 0x58: util::stream_format(*output, "xpl %s", GET_ADDRESS(addr_mode, address)); break; case 0x59: util::stream_format(*output, "opl %s", GET_ADDRESS(addr_mode, address)); break; case 0x5a: util::stream_format(*output, "apl %s", GET_ADDRESS(addr_mode, address)); break; case 0x5b: util::stream_format(*output, "cpl %s", GET_ADDRESS(addr_mode, address)); break; case 0x5c: util::stream_format(*output, "xpl %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0x5d: util::stream_format(*output, "opl %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0x5e: util::stream_format(*output, "apl %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0x5f: util::stream_format(*output, "cpl %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0x60: util::stream_format(*output, "addc %s", GET_ADDRESS(addr_mode, address)); break; case 0x61: util::stream_format(*output, "add %s << 16", GET_ADDRESS(addr_mode, address)); break; case 0x62: util::stream_format(*output, "adds %s", GET_ADDRESS(addr_mode, address)); break; case 0x63: util::stream_format(*output, "addt %s", GET_ADDRESS(addr_mode, address)); break; case 0x64: util::stream_format(*output, "subb %s", GET_ADDRESS(addr_mode, address)); break; case 0x65: util::stream_format(*output, "sub %s << 16", GET_ADDRESS(addr_mode, address)); break; case 0x66: util::stream_format(*output, "subs %s", GET_ADDRESS(addr_mode, address)); break; case 0x67: util::stream_format(*output, "subt %s", GET_ADDRESS(addr_mode, address)); break; case 0x68: util::stream_format(*output, "zalr %s", GET_ADDRESS(addr_mode, address)); break; case 0x69: util::stream_format(*output, "lacl %s", GET_ADDRESS(addr_mode, address)); break; case 0x6a: util::stream_format(*output, "lacc %s << 16", GET_ADDRESS(addr_mode, address)); break; case 0x6b: util::stream_format(*output, "lact %s", GET_ADDRESS(addr_mode, address)); break; case 0x6c: util::stream_format(*output, "xor %s", GET_ADDRESS(addr_mode, address)); break; case 0x6d: util::stream_format(*output, "or %s", GET_ADDRESS(addr_mode, address)); break; case 0x6e: util::stream_format(*output, "and %s", GET_ADDRESS(addr_mode, address)); break; case 0x6f: util::stream_format(*output, "bitt %s", GET_ADDRESS(addr_mode, address)); break; case 0x70: util::stream_format(*output, "lta %s", GET_ADDRESS(addr_mode, address)); break; case 0x71: util::stream_format(*output, "ltp %s", GET_ADDRESS(addr_mode, address)); break; case 0x72: util::stream_format(*output, "ltd %s", GET_ADDRESS(addr_mode, address)); break; case 0x73: util::stream_format(*output, "lt %s", GET_ADDRESS(addr_mode, address)); break; case 0x74: util::stream_format(*output, "lts %s", GET_ADDRESS(addr_mode, address)); break; case 0x75: util::stream_format(*output, "lph %s", GET_ADDRESS(addr_mode, address)); break; case 0x76: util::stream_format(*output, "pshd %s", GET_ADDRESS(addr_mode, address)); break; case 0x77: util::stream_format(*output, "dmov %s", GET_ADDRESS(addr_mode, address)); break; case 0x78: util::stream_format(*output, "adrk #%02X", opcode & 0xff); break; case 0x79: util::stream_format(*output, "b %04X, %s", FETCH(npc, opcodes), GET_ADDRESS(1, address)); break; case 0x7a: util::stream_format(*output, "call %04X, %s", FETCH(npc, opcodes), GET_ADDRESS(1, address)); flags = STEP_OVER; break; case 0x7b: util::stream_format(*output, "banz %04X, %s", FETCH(npc, opcodes), GET_ADDRESS(1, address)); break; case 0x7c: util::stream_format(*output, "sbrk #%02X", opcode & 0xff); break; case 0x7d: util::stream_format(*output, "bd %04X, %s", FETCH(npc, opcodes), GET_ADDRESS(1, address)); break; case 0x7e: util::stream_format(*output, "calld %04X, %s", FETCH(npc, opcodes), GET_ADDRESS(1, address)); flags = STEP_OVER; break; case 0x7f: util::stream_format(*output, "banzd %04X, %s", FETCH(npc, opcodes), GET_ADDRESS(1, address)); break; case 0x80: case 0x81: case 0x82: case 0x83: case 0x84: case 0x85: case 0x86: case 0x87: { util::stream_format(*output, "sar ar%d, %s", (opcode >> 8) & 0x7, GET_ADDRESS(addr_mode, address)); break; } case 0x88: util::stream_format(*output, "samm %s", GET_ADDRESS(addr_mode, address)); break; case 0x89: util::stream_format(*output, "lmmr %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0x8a: util::stream_format(*output, "popd %s", GET_ADDRESS(addr_mode, address)); break; case 0x8b: { if ((opcode & 0xff) == 0) { util::stream_format(*output, "nop"); } else { util::stream_format(*output, "mar %s", GET_ADDRESS(addr_mode, address)); } break; } case 0x8c: util::stream_format(*output, "spl %s", GET_ADDRESS(addr_mode, address)); break; case 0x8d: util::stream_format(*output, "sph %s", GET_ADDRESS(addr_mode, address)); break; case 0x8e: util::stream_format(*output, "sst 0, %s", GET_ADDRESS(addr_mode, address)); break; case 0x8f: util::stream_format(*output, "sst 1, %s", GET_ADDRESS(addr_mode, address)); break; case 0x90: case 0x91: case 0x92: case 0x93: case 0x94: case 0x95: case 0x96: case 0x97: { util::stream_format(*output, "sacl %s %s", GET_ADDRESS(addr_mode, address), GET_SHIFT((opcode >> 8) & 0x7)); break; } case 0x98: case 0x99: case 0x9a: case 0x9b: case 0x9c: case 0x9d: case 0x9e: case 0x9f: { util::stream_format(*output, "sach %s %s", GET_ADDRESS(addr_mode, address), GET_SHIFT((opcode >> 8) & 0x7)); break; } case 0xa0: util::stream_format(*output, "norm %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0xa2: util::stream_format(*output, "mac %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0xa3: util::stream_format(*output, "macd %s", GET_ADDRESS(addr_mode, address)); break; case 0xa4: util::stream_format(*output, "blpd %s", GET_ADDRESS(addr_mode, address)); break; case 0xa5: util::stream_format(*output, "blpd %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0xa6: util::stream_format(*output, "tblr %s", GET_ADDRESS(addr_mode, address)); break; case 0xa7: util::stream_format(*output, "tblw %s", GET_ADDRESS(addr_mode, address)); break; case 0xa8: util::stream_format(*output, "bldd %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0xa9: util::stream_format(*output, "bldd %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0xaa: util::stream_format(*output, "mads %s", GET_ADDRESS(addr_mode, address)); break; case 0xab: util::stream_format(*output, "madd %s", GET_ADDRESS(addr_mode, address)); break; case 0xac: util::stream_format(*output, "bldd %s", GET_ADDRESS(addr_mode, address)); break; case 0xad: util::stream_format(*output, "bldd %s", GET_ADDRESS(addr_mode, address)); break; case 0xae: util::stream_format(*output, "splk %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0xaf: util::stream_format(*output, "in %s, #%04X", GET_ADDRESS(addr_mode, address), FETCH(npc, opcodes)); break; case 0xb0: case 0xb1: case 0xb2: case 0xb3: case 0xb4: case 0xb5: case 0xb6: case 0xb7: { util::stream_format(*output, "lar ar%d, #%02X", (opcode >> 8) & 0x7, opcode & 0xff); break; } case 0xb8: util::stream_format(*output, "add #%02X", opcode & 0xff); break; case 0xb9: util::stream_format(*output, "lacl #%02X", opcode & 0xff); break; case 0xba: util::stream_format(*output, "sub #%02X", opcode & 0xff); break; case 0xbb: util::stream_format(*output, "rpt #%02X", opcode & 0xff); break; case 0xbc: case 0xbd: { util::stream_format(*output, "ldp #%03X", opcode & 0x1ff); break; } case 0xbe: dasm_group_be(opcode, npc, opcodes); break; case 0xbf: dasm_group_bf(opcode, npc, opcodes); break; case 0xe0: case 0xe1: case 0xe2: case 0xe3: { int zlcvmask = opcode & 0xf; int zlcv = (opcode >> 4) & 0xf; int zl = (zlcv & 0xc) | ((zlcvmask >> 2) & 0x3); int cv = ((zlcv << 2) & 0xc) | (zlcvmask & 0x3); int tp = (opcode >> 8) & 0x3; util::stream_format(*output, "bcnd %04X", FETCH(npc, opcodes)); print_condition_codes(true, zl, cv, tp); break; } case 0xe4: case 0xe5: case 0xe6: case 0xe7: case 0xf4: case 0xf5: case 0xf6: case 0xf7: { int zlcvmask = opcode & 0xf; int zlcv = (opcode >> 4) & 0xf; int zl = (zlcv & 0xc) | ((zlcvmask >> 2) & 0x3); int cv = ((zlcv << 2) & 0xc) | (zlcvmask & 0x3); int tp = (opcode >> 8) & 0x3; int n = ((opcode >> 12) & 0x1) + 1; util::stream_format(*output, "xc %d", n); print_condition_codes(true, zl, cv, tp); break; } case 0xe8: case 0xe9: case 0xea: case 0xeb: { int zlcvmask = opcode & 0xf; int zlcv = (opcode >> 4) & 0xf; int zl = (zlcv & 0xc) | ((zlcvmask >> 2) & 0x3); int cv = ((zlcv << 2) & 0xc) | (zlcvmask & 0x3); int tp = (opcode >> 8) & 0x3; util::stream_format(*output, "cc %04X", FETCH(npc, opcodes)); print_condition_codes(true, zl, cv, tp); break; } case 0xec: case 0xed: case 0xee: case 0xef: { int zlcvmask = opcode & 0xf; int zlcv = (opcode >> 4) & 0xf; int zl = (zlcv & 0xc) | ((zlcvmask >> 2) & 0x3); int cv = ((zlcv << 2) & 0xc) | (zlcvmask & 0x3); int tp = (opcode >> 8) & 0x3; if (opcode == 0xef00) { util::stream_format(*output, "ret"); } else { util::stream_format(*output, "retc "); print_condition_codes(false, zl, cv, tp); } flags = STEP_OUT; break; } case 0xf0: case 0xf1: case 0xf2: case 0xf3: { int zlcvmask = opcode & 0xf; int zlcv = (opcode >> 4) & 0xf; int zl = (zlcv & 0xc) | ((zlcvmask >> 2) & 0x3); int cv = ((zlcv << 2) & 0xc) | (zlcvmask & 0x3); int tp = (opcode >> 8) & 0x3; util::stream_format(*output, "bcndd %04X", FETCH(npc, opcodes)); print_condition_codes(true, zl, cv, tp); break; } case 0xf8: case 0xf9: case 0xfa: case 0xfb: { int zlcvmask = opcode & 0xf; int zlcv = (opcode >> 4) & 0xf; int zl = (zlcv & 0xc) | ((zlcvmask >> 2) & 0x3); int cv = ((zlcv << 2) & 0xc) | (zlcvmask & 0x3); int tp = (opcode >> 8) & 0x3; util::stream_format(*output, "ccd %04X", FETCH(npc, opcodes)); print_condition_codes(true, zl, cv, tp); break; } case 0xfc: case 0xfd: case 0xfe: case 0xff: { int zlcvmask = opcode & 0xf; int zlcv = (opcode >> 4) & 0xf; int zl = (zlcv & 0xc) | ((zlcvmask >> 2) & 0x3); int cv = ((zlcv << 2) & 0xc) | (zlcvmask & 0x3); int tp = (opcode >> 8) & 0x3; if (opcode == 0xff00) { util::stream_format(*output, "retd"); } else { util::stream_format(*output, "retcd "); print_condition_codes(false, zl, cv, tp); } flags = STEP_OUT; break; } default: util::stream_format(*output, "??? ($%04X)", opcode); break; } return (npc-pc) | flags | SUPPORTED; }