// license:BSD-3-Clause // copyright-holders:David Haywood /*********************************\ ARCompact disassembler \*********************************/ #include "emu.h" #include "arcompactdasm.h" u32 arcompact_disassembler::opcode_alignment() const { return 2; } // condition codes (basic ones are the same as arc const char *const arcompact_disassembler::conditions[0x20] = { /* 00 */ "AL", // (aka RA - Always) /* 01 */ "EQ", // (aka Z - Zero /* 02 */ "NE", // (aka NZ - Non-Zero) /* 03 */ "PL", // (aka P - Positive) /* 04 */ "MI", // (aka N - Negative) /* 05 */ "CS", // (aka C, LO - Carry set / Lower than) (unsigned) /* 06 */ "CC", // (aka CC, NC, HS - Carry Clear / Higher or Same) (unsigned) /* 07 */ "VS", // (aka V - Overflow set) /* 08 */ "VC", // (aka NV - Overflow clear) /* 09 */ "GT", // ( - Greater than) (signed) /* 0a */ "GE", // ( - Greater than or Equal) (signed) /* 0b */ "LT", // ( - Less than) (signed) /* 0c */ "LE", // ( - Less than or Equal) (signed) /* 0d */ "HI", // ( - Higher than) (unsigned) /* 0e */ "LS", // ( - Lower or Same) (unsigned) /* 0f */ "PNZ",// ( - Positive non-0 value) /* 10 */ "0x10 Reserved", // possible CPU implementation specifics /* 11 */ "0x11 Reserved", /* 12 */ "0x12 Reserved", /* 13 */ "0x13 Reserved", /* 14 */ "0x14 Reserved", /* 15 */ "0x15 Reserved", /* 16 */ "0x16 Reserved", /* 17 */ "0x17 Reserved", /* 18 */ "0x18 Reserved", /* 19 */ "0x19 Reserved", /* 1a */ "0x1a Reserved", /* 1b */ "0x1b Reserved", /* 1c */ "0x1c Reserved", /* 1d */ "0x1d Reserved", /* 1e */ "0x1e Reserved", /* 1f */ "0x1f Reserved" }; #define UNUSED_REG "unusedreg" #define AUX_UNUSED_16 \ /* 0xxx0 */ UNUSED_REG, /* 0xxx1 */ UNUSED_REG, /* 0xxx2 */ UNUSED_REG, /* 0xxx3 */ UNUSED_REG, /* 0xxx4 */ UNUSED_REG, /* 0xxx5 */ UNUSED_REG, /* 0xxx6 */ UNUSED_REG, /* 0xxx7 */ UNUSED_REG, /* 0xxx8 */ UNUSED_REG, /* 0xxx9 */ UNUSED_REG, /* 0xxxa */ UNUSED_REG, /* 0xxxb */ UNUSED_REG, /* 0xxxc */ UNUSED_REG, /* 0xxxd */ UNUSED_REG, /* 0xxxe */ UNUSED_REG, /* 0xxxf */ UNUSED_REG, // the Auxiliary Register set is actually a 2^32 dword address space (so 16 GB / 34-bit) // this table just allows us to improve the debugger display for some of the common core / internal ones const char *const arcompact_disassembler::auxregnames[0x420] = { /* 0x000 */ "STATUS", /* 0x001 */ "SEMAPHOR", /* 0x002 */ "LP_START", /* 0x003 */ "LP_END", /* 0x004 */ "IDENTITY", /* 0x005 */ "DEBUG", /* 0x006 */ "PC", /* 0x007 */ UNUSED_REG, /* 0x008 */ UNUSED_REG, /* 0x009 */ UNUSED_REG, /* 0x00a */ "STATUS32", /* 0x00b */ "STATUS32_L1", /* 0x00c */ "STATUS32_L2", /* 0x00d */ UNUSED_REG, /* 0x00e */ UNUSED_REG, /* 0x00f */ UNUSED_REG, /* 0x010 */ UNUSED_REG, /* 0x011 */ UNUSED_REG, /* 0x012 */ "MULHI", // extension register /* 0x013 */ UNUSED_REG, /* 0x014 */ UNUSED_REG, /* 0x015 */ UNUSED_REG, /* 0x016 */ UNUSED_REG, /* 0x017 */ UNUSED_REG, /* 0x018 */ UNUSED_REG, /* 0x019 */ UNUSED_REG, /* 0x01a */ UNUSED_REG, /* 0x01b */ UNUSED_REG, /* 0x01c */ UNUSED_REG, /* 0x01d */ UNUSED_REG, /* 0x01e */ UNUSED_REG, /* 0x01f */ UNUSED_REG, /* 0x020 */ UNUSED_REG, /* 0x021 */ "COUNT0", /* 0x022 */ "CONTROL0", /* 0x023 */ "LIMIT0", /* 0x024 */ UNUSED_REG, /* 0x025 */ "INT_VECTOR_BASE", /* 0x026 */ UNUSED_REG, /* 0x027 */ UNUSED_REG, /* 0x028 */ UNUSED_REG, /* 0x029 */ UNUSED_REG, /* 0x02a */ UNUSED_REG, /* 0x02b */ UNUSED_REG, /* 0x02c */ UNUSED_REG, /* 0x02d */ UNUSED_REG, /* 0x02e */ UNUSED_REG, /* 0x02f */ UNUSED_REG, AUX_UNUSED_16 /* 0x030 - 0x03f */ /* 0x040 */ UNUSED_REG, /* 0x041 */ "AUX_MACMODE", /* 0x042 */ UNUSED_REG, /* 0x043 */ "AUX_IRQLV12", /* 0x044 */ UNUSED_REG, /* 0x045 */ UNUSED_REG, /* 0x046 */ UNUSED_REG, /* 0x047 */ UNUSED_REG, /* 0x048 */ UNUSED_REG, /* 0x049 */ UNUSED_REG, /* 0x04a */ UNUSED_REG, /* 0x04b */ UNUSED_REG, /* 0x04c */ UNUSED_REG, /* 0x04d */ UNUSED_REG, /* 0x04e */ UNUSED_REG, /* 0x04f */ UNUSED_REG, AUX_UNUSED_16 /* 0x050 - 0x05f */ // build configuration registers 0x060 - 0x07f /* 0x060 */ "RESERVED AUX 0x60",/* 0x061 */ "RESERVED AUX 0x61",/* 0x062 */ "RESERVED AUX 0x62",/* 0x063 */ "RESERVED AUX 0x63",/* 0x064 */ "RESERVED AUX 0x64",/* 0x065 */ "RESERVED AUX 0x65",/* 0x066 */ "RESERVED AUX 0x66",/* 0x067 */ "RESERVED AUX 0x67",/* 0x068 */ "RESERVED AUX 0x68",/* 0x069 */ "RESERVED AUX 0x69",/* 0x06a */ "RESERVED AUX 0x6a",/* 0x06b */ "RESERVED AUX 0x6b",/* 0x06c */ "RESERVED AUX 0x6c",/* 0x06d */ "RESERVED AUX 0x6d",/* 0x06e */ "RESERVED AUX 0x6e",/* 0x06f */ "RESERVED AUX 0x6f", /* 0x070 */ "RESERVED AUX 0x70",/* 0x071 */ "RESERVED AUX 0x71",/* 0x072 */ "RESERVED AUX 0x72",/* 0x073 */ "RESERVED AUX 0x73",/* 0x074 */ "RESERVED AUX 0x74",/* 0x075 */ "RESERVED AUX 0x75",/* 0x076 */ "RESERVED AUX 0x76",/* 0x077 */ "RESERVED AUX 0x77",/* 0x078 */ "RESERVED AUX 0x78",/* 0x079 */ "RESERVED AUX 0x79",/* 0x07a */ "RESERVED AUX 0x7a",/* 0x07b */ "RESERVED AUX 0x7b",/* 0x07c */ "RESERVED AUX 0x7c",/* 0x07d */ "RESERVED AUX 0x7d",/* 0x07e */ "RESERVED AUX 0x7e",/* 0x07f */ "RESERVED AUX 0x7f", AUX_UNUSED_16 /* 0x080 - 0x08f */ AUX_UNUSED_16 /* 0x090 - 0x09f */ AUX_UNUSED_16 /* 0x0a0 - 0x0af */ AUX_UNUSED_16 /* 0x0b0 - 0x0bf */ // build configuration registers 0x0c0 - 0x0ff /* 0x0c0 */ "RESERVED AUX 0xc0",/* 0x0c1 */ "RESERVED AUX 0xc1",/* 0x0c2 */ "RESERVED AUX 0xc2",/* 0x0c3 */ "RESERVED AUX 0xc3",/* 0x0c4 */ "RESERVED AUX 0xc4",/* 0x0c5 */ "RESERVED AUX 0xc5",/* 0x0c6 */ "RESERVED AUX 0xc6",/* 0x0c7 */ "RESERVED AUX 0xc7",/* 0x0c8 */ "RESERVED AUX 0xc8",/* 0x0c9 */ "RESERVED AUX 0xc9",/* 0x0ca */ "RESERVED AUX 0xca",/* 0x0cb */ "RESERVED AUX 0xcb",/* 0x0cc */ "RESERVED AUX 0xcc",/* 0x0cd */ "RESERVED AUX 0xcd",/* 0x0ce */ "RESERVED AUX 0xce",/* 0x0cf */ "RESERVED AUX 0xcf", /* 0x0d0 */ "RESERVED AUX 0xd0",/* 0x0d1 */ "RESERVED AUX 0xd1",/* 0x0d2 */ "RESERVED AUX 0xd2",/* 0x0d3 */ "RESERVED AUX 0xd3",/* 0x0d4 */ "RESERVED AUX 0xd4",/* 0x0d5 */ "RESERVED AUX 0xd5",/* 0x0d6 */ "RESERVED AUX 0xd6",/* 0x0d7 */ "RESERVED AUX 0xd7",/* 0x0d8 */ "RESERVED AUX 0xd8",/* 0x0d9 */ "RESERVED AUX 0xd9",/* 0x0da */ "RESERVED AUX 0xda",/* 0x0db */ "RESERVED AUX 0xdb",/* 0x0dc */ "RESERVED AUX 0xdc",/* 0x0dd */ "RESERVED AUX 0xdd",/* 0x0de */ "RESERVED AUX 0xde",/* 0x0df */ "RESERVED AUX 0xdf", /* 0x0e0 */ "RESERVED AUX 0xe0",/* 0x0e1 */ "RESERVED AUX 0xe1",/* 0x0e2 */ "RESERVED AUX 0xe2",/* 0x0e3 */ "RESERVED AUX 0xe3",/* 0x0e4 */ "RESERVED AUX 0xe4",/* 0x0e5 */ "RESERVED AUX 0xe5",/* 0x0e6 */ "RESERVED AUX 0xe6",/* 0x0e7 */ "RESERVED AUX 0xe7",/* 0x0e8 */ "RESERVED AUX 0xe8",/* 0x0e9 */ "RESERVED AUX 0xe9",/* 0x0ea */ "RESERVED AUX 0xea",/* 0x0eb */ "RESERVED AUX 0xeb",/* 0x0ec */ "RESERVED AUX 0xec",/* 0x0ed */ "RESERVED AUX 0xed",/* 0x0ee */ "RESERVED AUX 0xee",/* 0x0ef */ "RESERVED AUX 0xef", /* 0x0f0 */ "RESERVED AUX 0xf0",/* 0x0f1 */ "RESERVED AUX 0xf1",/* 0x0f2 */ "RESERVED AUX 0xf2",/* 0x0f3 */ "RESERVED AUX 0xf3",/* 0x0f4 */ "RESERVED AUX 0xf4",/* 0x0f5 */ "RESERVED AUX 0xf5",/* 0x0f6 */ "RESERVED AUX 0xf6",/* 0x0f7 */ "RESERVED AUX 0xf7",/* 0x0f8 */ "RESERVED AUX 0xf8",/* 0x0f9 */ "RESERVED AUX 0xf9",/* 0x0fa */ "RESERVED AUX 0xfa",/* 0x0fb */ "RESERVED AUX 0xfb",/* 0x0fc */ "RESERVED AUX 0xfc",/* 0x0fd */ "RESERVED AUX 0xfd",/* 0x0fe */ "RESERVED AUX 0xfe",/* 0x0ff */ "RESERVED AUX 0xff", /* 0x100 */ "COUNT1", /* 0x101 */ "CONTROL1", /* 0x102 */ "LIMIT1", /* 0x103 */ UNUSED_REG, /* 0x104 */ UNUSED_REG, /* 0x105 */ UNUSED_REG, /* 0x106 */ UNUSED_REG, /* 0x107 */ UNUSED_REG, /* 0x108 */ UNUSED_REG, /* 0x109 */ UNUSED_REG, /* 0x10a */ UNUSED_REG, /* 0x10b */ UNUSED_REG, /* 0x10c */ UNUSED_REG, /* 0x10d */ UNUSED_REG, /* 0x10e */ UNUSED_REG, /* 0x10f */ UNUSED_REG, AUX_UNUSED_16 /* 0x110 - 0x11f */ AUX_UNUSED_16 /* 0x120 - 0x12f */ AUX_UNUSED_16 /* 0x130 - 0x13f */ AUX_UNUSED_16 /* 0x140 - 0x14f */ AUX_UNUSED_16 /* 0x150 - 0x15f */ AUX_UNUSED_16 /* 0x160 - 0x16f */ AUX_UNUSED_16 /* 0x170 - 0x17f */ AUX_UNUSED_16 /* 0x180 - 0x18f */ AUX_UNUSED_16 /* 0x190 - 0x19f */ AUX_UNUSED_16 /* 0x1a0 - 0x1af */ AUX_UNUSED_16 /* 0x1b0 - 0x1bf */ AUX_UNUSED_16 /* 0x1c0 - 0x1cf */ AUX_UNUSED_16 /* 0x1d0 - 0x1df */ AUX_UNUSED_16 /* 0x1e0 - 0x1ef */ AUX_UNUSED_16 /* 0x1f0 - 0x1ff */ /* 0x200 */ "AUX_IRQ_LEV", /* 0x201 */ "AUX_IRQ_HINT", /* 0x203 */ UNUSED_REG, /* 0x203 */ UNUSED_REG, /* 0x204 */ UNUSED_REG, /* 0x205 */ UNUSED_REG, /* 0x206 */ UNUSED_REG, /* 0x207 */ UNUSED_REG, /* 0x208 */ UNUSED_REG, /* 0x209 */ UNUSED_REG, /* 0x20a */ UNUSED_REG, /* 0x20b */ UNUSED_REG, /* 0x20c */ UNUSED_REG, /* 0x20d */ UNUSED_REG, /* 0x20e */ UNUSED_REG, /* 0x20f */ UNUSED_REG, AUX_UNUSED_16 /* 0x210 - 0x21f */ AUX_UNUSED_16 /* 0x220 - 0x22f */ AUX_UNUSED_16 /* 0x230 - 0x23f */ AUX_UNUSED_16 /* 0x240 - 0x24f */ AUX_UNUSED_16 /* 0x250 - 0x25f */ AUX_UNUSED_16 /* 0x260 - 0x26f */ AUX_UNUSED_16 /* 0x270 - 0x27f */ AUX_UNUSED_16 /* 0x280 - 0x28f */ AUX_UNUSED_16 /* 0x290 - 0x29f */ AUX_UNUSED_16 /* 0x2a0 - 0x2af */ AUX_UNUSED_16 /* 0x2b0 - 0x2bf */ AUX_UNUSED_16 /* 0x2c0 - 0x2cf */ AUX_UNUSED_16 /* 0x2d0 - 0x2df */ AUX_UNUSED_16 /* 0x2e0 - 0x2ef */ AUX_UNUSED_16 /* 0x2f0 - 0x2ff */ AUX_UNUSED_16 /* 0x300 - 0x30f */ AUX_UNUSED_16 /* 0x310 - 0x31f */ AUX_UNUSED_16 /* 0x320 - 0x32f */ AUX_UNUSED_16 /* 0x330 - 0x33f */ AUX_UNUSED_16 /* 0x340 - 0x34f */ AUX_UNUSED_16 /* 0x350 - 0x35f */ AUX_UNUSED_16 /* 0x360 - 0x36f */ AUX_UNUSED_16 /* 0x370 - 0x37f */ AUX_UNUSED_16 /* 0x380 - 0x38f */ AUX_UNUSED_16 /* 0x390 - 0x39f */ AUX_UNUSED_16 /* 0x3a0 - 0x3af */ AUX_UNUSED_16 /* 0x3b0 - 0x3bf */ AUX_UNUSED_16 /* 0x3c0 - 0x3cf */ AUX_UNUSED_16 /* 0x3d0 - 0x3df */ AUX_UNUSED_16 /* 0x3e0 - 0x3ef */ AUX_UNUSED_16 /* 0x3f0 - 0x3ff */ /* 0x400 */ "ERET", /* 0x401 */ "ERBTA", /* 0x403 */ "ERSTATUS", /* 0x403 */ "ECR", /* 0x404 */ "EFA", /* 0x405 */ UNUSED_REG, /* 0x406 */ UNUSED_REG, /* 0x407 */ UNUSED_REG, /* 0x408 */ UNUSED_REG, /* 0x409 */ UNUSED_REG, /* 0x40a */ "ICAUSE1", /* 0x40b */ "ICAUSE2", /* 0x40c */ "AUX_IENABLE", /* 0x40d */ "AUX_ITRIGGER", /* 0x40e */ UNUSED_REG, /* 0x40f */ UNUSED_REG, /* 0x410 */ "XPU", /* 0x411 */ UNUSED_REG, /* 0x412 */ "BTA", /* 0x413 */ "BTA_L1", /* 0x414 */ "BTA_L2", /* 0x415 */ "AUX_IRQ_PULSE_CANCEL", /* 0x416 */ "AUX_IRQ_PENDING", /* 0x417 */ UNUSED_REG, /* 0x418 */ UNUSED_REG, /* 0x419 */ UNUSED_REG, /* 0x41a */ UNUSED_REG, /* 0x41b */ UNUSED_REG, /* 0x41c */ UNUSED_REG, /* 0x41d */ UNUSED_REG, /* 0x41e */ UNUSED_REG, /* 0x41f */ UNUSED_REG }; //#define EXPLICIT_EXTENSIONS const char *const arcompact_disassembler::datasize[0x4] = { #ifdef EXPLICIT_EXTENSIONS /* 00 */ ".L", // Dword (default) (can use no extension, using .L to be explicit) #else /* 00 */ "",// Dword (default) #endif /* 01 */ ".B", // Byte /* 02 */ ".W", // Word /* 03 */ "." }; const char *const arcompact_disassembler::dataextend[0x2] = { #ifdef EXPLICIT_EXTENSIONS /* 00 */ ".ZX", // Zero Extend (can use no extension, using .ZX to be explicit) #else /* 00 */ "", // Zero Extend #endif /* 01 */ ".X" // Sign Extend }; const char *const arcompact_disassembler::addressmode[0x4] = { #ifdef EXPLICIT_EXTENSIONS /* 00 */ ".AN", // No Writeback (can use no extension, using .AN to be explicit) #else /* 00 */ "", // No Writeback #endif /* 01 */ ".AW", // Writeback pre memory access /* 02 */ ".AB", // Writeback post memory access /* 03 */ ".AS" // scaled }; const char *const arcompact_disassembler::cachebit[0x2] = { #ifdef EXPLICIT_EXTENSIONS /* 00 */ ".EN", // Data Cache Enabled (can use no extension, using .EN to be explicit) #else /* 00 */ "", // Data Cache Enabled #endif /* 01 */ ".DI" // Direct to Memory (Cache Bypass) }; const char *const arcompact_disassembler::flagbit[0x2] = { #ifdef EXPLICIT_EXTENSIONS /* 00 */ ".NF", // Don't Set Flags (can use no extension, using .NF to be explicit) #else /* 00 */ "", // Don't Set Flags #endif /* 01 */ ".F" // Set Flags }; const char *const arcompact_disassembler::delaybit[0x2] = { /* 00 */ ".ND", // Don't execute opcode in delay slot /* 01 */ ".D" // Execute Opcode in delay slot }; const char *const arcompact_disassembler::regnames[0x40] = { /* 00 */ "r0", /* 01 */ "r1", /* 02 */ "r2", /* 03 */ "r3", /* 04 */ "r4", /* 05 */ "r5", /* 06 */ "r6", /* 07 */ "r7", /* 08 */ "r8", /* 09 */ "r9", /* 0a */ "r10", /* 0b */ "r11", /* 0c */ "r12", /* 0d */ "r13", /* 0e */ "r14", /* 0f */ "r15", /* 10 */ "r16", /* 11 */ "r17", /* 12 */ "r18", /* 13 */ "r19", /* 14 */ "r20", /* 15 */ "r21", /* 16 */ "r22", /* 17 */ "r23", /* 18 */ "r24", /* 19 */ "r25", /* 1a */ "r26_GP", /* 1b */ "r27_FP", /* 1c */ "r28_SP", /* 1d */ "r29_ILINK1", /* 1e */ "r30_ILINK2", /* 1f */ "r31_BLINK", /* 20 */ "r32(ext)", /* 21 */ "r33(ext)", /* 22 */ "r34(ext)", /* 23 */ "r35(ext)", /* 24 */ "r36(ext)", /* 25 */ "r37(ext)", /* 26 */ "r38(ext)", /* 27 */ "r39(ext)", /* 28 */ "r40(ext)", /* 29 */ "r41(ext)", /* 2a */ "r42(ext)", /* 2b */ "r43(ext)", /* 2c */ "r44(ext)", /* 2d */ "r45(ext)", /* 2e */ "r46(ext)", /* 2f */ "r47(ext)", /* 30 */ "r48(ext)", /* 31 */ "r49(ext)", /* 32 */ "r50(ext)", /* 33 */ "r51(ext)", /* 34 */ "r52(ext)", /* 35 */ "r53(ext)", /* 36 */ "r54(ext)", /* 37 */ "r55(ext)", /* 38 */ "r56(ext)", /* 39 */ "r57(M-LO)", // MLO (result registers for optional multply functions) /* 3a */ "r58(M-MID)", // MMID /* 3b */ "r59(M-HI)", // MHI /* 3c */ "r60(LP_COUNT)", /* 3d */ "r61(reserved)", /* 3e */ "r62(LIMM)", // use Long Immediate Data instead of register /* 3f */ "r63(PCL)" }; #if 0 const char *const arcompact_disassembler::opcodes_temp[0x40] = { /* 00 */ "0x00", /* 01 */ "0x01", /* 02 */ "0x02", /* 03 */ "0x03", /* 04 */ "0x04", /* 05 */ "0x05", /* 06 */ "0x06", /* 07 */ "0x07", /* 08 */ "0x08", /* 09 */ "0x09", /* 0a */ "0x0a", /* 0b */ "0x0b", /* 0c */ "0x0c", /* 0d */ "0x0d", /* 0e */ "0x0e", /* 0f */ "0x0f", /* 10 */ "0x10", /* 11 */ "0x11", /* 12 */ "0x12", /* 13 */ "0x13", /* 14 */ "0x14", /* 15 */ "0x15", /* 16 */ "0x16", /* 17 */ "0x17", /* 18 */ "0x18", /* 19 */ "0x19", /* 1a */ "0x1a", /* 1b */ "0x1b", /* 1c */ "0x1c", /* 1d */ "0x1d", /* 1e */ "0x1e", /* 1f */ "0x1f", /* 20 */ "0x20", /* 21 */ "0x21", /* 22 */ "0x22", /* 23 */ "0x23", /* 24 */ "0x24", /* 25 */ "0x25", /* 26 */ "0x26", /* 27 */ "0x27", /* 28 */ "0x28", /* 29 */ "0x29", /* 2a */ "0x2a", /* 2b */ "0x2b", /* 2c */ "0x2c", /* 2d */ "0x2d", /* 2e */ "0x2e", /* 2f */ "0x2f", /* 30 */ "0x30", /* 31 */ "0x31", /* 32 */ "0x32", /* 33 */ "0x33", /* 34 */ "0x34", /* 35 */ "0x35", /* 36 */ "0x36", /* 37 */ "0x37", /* 38 */ "0x38", /* 39 */ "0x39", /* 3a */ "0x3a", /* 3b */ "0x3b", /* 3c */ "0x3c", /* 3d */ "0x3d", /* 3e */ "0x3e", /* 3f */ "0x3f", }; #endif const char *const arcompact_disassembler::opcodes_04[0x40] = { /* 00 */ "ADD", /* 01 */ "ADC", /* 02 */ "SUB", /* 03 */ "SBC", /* 04 */ "AND", /* 05 */ "OR", /* 06 */ "BIC", /* 07 */ "XOR", /* 08 */ "MAX", /* 09 */ "MIN", /* 0a */ "MOV", /* 0b */ "TST", /* 0c */ "CMP", /* 0d */ "RCMP", /* 0e */ "RSUB", /* 0f */ "BSET", /* 10 */ "BCLR", /* 11 */ "BTST", /* 12 */ "BXOR", /* 13 */ "BSMK", /* 14 */ "ADD1", /* 15 */ "ADD2", /* 16 */ "ADD3", /* 17 */ "SUB1", /* 18 */ "SUB2", /* 19 */ "SUB3", /* 1a */ "MPY", /* 1b */ "MPYH", /* 1c */ "MPYHU", /* 1d */ "MPYU", /* 1e */ "0x1e", /* 1f */ "0x1f", /* 20 */ "Jcc", /* 21 */ "Jcc.D", /* 22 */ "JLcc", /* 23 */ "JLcc.D", /* 24 */ "0x24", /* 25 */ "0x25", /* 26 */ "0x26", /* 27 */ "0x27", /* 28 */ "LPcc", /* 29 */ "FLAG", /* 2a */ "LR", /* 2b */ "SR", /* 2c */ "0x2c", /* 2d */ "0x2d", /* 2e */ "0x2e", /* 2f */ "SOP table", /* 30 */ "LD", /* 31 */ "LD", /* 32 */ "LD", /* 33 */ "LD", /* 34 */ "LD", /* 35 */ "LD", /* 36 */ "LD", /* 37 */ "LD", /* 38 */ "0x38", /* 39 */ "0x39", /* 3a */ "0x3a", /* 3b */ "0x3b", /* 3c */ "0x3c", /* 3d */ "0x3d", /* 3e */ "0x3e", /* 3f */ "0x3f", }; offs_t arcompact_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { int size; uint32_t op = opcodes.r16(pc); uint8_t instruction = ((op & 0xf800) >> 11); if (instruction < 0x0c) { size = 4; op <<= 16; op |= opcodes.r16(pc+2); op &= ~0xf8000000; switch (instruction) // 32-bit instructions (with optional extra dword for immediate data) { case 0x00: size = handle00_dasm(stream, pc, op, opcodes); break; // Bcc case 0x01: size = handle01_dasm(stream, pc, op, opcodes); break; // BLcc/BRcc case 0x02: size = handle02_dasm(stream, pc, op, opcodes); break; // LD r+o case 0x03: size = handle03_dasm(stream, pc, op, opcodes); break; // ST r+o case 0x04: size = handle04_dasm(stream, pc, op, opcodes); break; // op a,b,c (basecase) case 0x05: size = handle05_dasm(stream, pc, op, opcodes); break; // op a,b,c (05 ARC ext) case 0x06: size = handle06_dasm(stream, pc, op, opcodes); break; // op a,b,c (06 ARC ext) case 0x07: size = handle07_dasm(stream, pc, op, opcodes); break; // op a,b,c (07 User ext) case 0x08: size = handle08_dasm(stream, pc, op, opcodes); break; // op a,b,c (08 User ext) case 0x09: size = handle09_dasm(stream, pc, op, opcodes); break; // op a,b,c (09 Market ext) case 0x0a: size = handle0a_dasm(stream, pc, op, opcodes); break; // op a,b,c (0a Market ext) case 0x0b: size = handle0b_dasm(stream, pc, op, opcodes); break; // op a,b,c (0b Market ext) } } else { size = 2; op &= ~0xf800; switch (instruction) // 16-bit instructions { case 0x0c: size = handle0c_dasm(stream, pc, op, opcodes); break; // Load/Add reg-reg case 0x0d: size = handle0d_dasm(stream, pc, op, opcodes); break; // Add/Sub/Shft imm case 0x0e: size = handle0e_dasm(stream, pc, op, opcodes); break; // Mov/Cmp/Add case 0x0f: size = handle0f_dasm(stream, pc, op, opcodes); break; // op_S b,b,c (single 16-bit ops) case 0x10: size = handle10_dasm(stream, pc, op, opcodes); break; // LD_S case 0x11: size = handle11_dasm(stream, pc, op, opcodes); break; // LDB_S case 0x12: size = handle12_dasm(stream, pc, op, opcodes); break; // LDW_S case 0x13: size = handle13_dasm(stream, pc, op, opcodes); break; // LSW_S.X case 0x14: size = handle14_dasm(stream, pc, op, opcodes); break; // ST_S case 0x15: size = handle15_dasm(stream, pc, op, opcodes); break; // STB_S case 0x16: size = handle16_dasm(stream, pc, op, opcodes); break; // STW_S case 0x17: size = handle17_dasm(stream, pc, op, opcodes); break; // Shift/Sub/Bit case 0x18: size = handle18_dasm(stream, pc, op, opcodes); break; // Stack Instr case 0x19: size = handle19_dasm(stream, pc, op, opcodes); break; // GP Instr case 0x1a: size = handle1a_dasm(stream, pc, op, opcodes); break; // PCL Instr case 0x1b: size = handle1b_dasm(stream, pc, op, opcodes); break; // MOV_S case 0x1c: size = handle1c_dasm(stream, pc, op, opcodes); break; // ADD_S/CMP_S case 0x1d: size = handle1d_dasm(stream, pc, op, opcodes); break; // BRcc_S case 0x1e: size = handle1e_dasm(stream, pc, op, opcodes); break; // Bcc_S case 0x1f: size = handle1f_dasm(stream, pc, op, opcodes); break; // BL_S } } return size | SUPPORTED; }