/* ======================================================================== */ /* ========================= LICENSING & COPYRIGHT ======================== */ /* ======================================================================== */ /* * MUSASHI * Version 3.31 * * A portable Motorola M680x0 processor emulation engine. * Copyright 1998-2007 Karl Stenerud. All rights reserved. * * This code may be freely used for non-commercial purposes as long as this * copyright notice remains unaltered in the source code and any binary files * containing this code in compiled form. * * All other lisencing terms must be negotiated with the author * (Karl Stenerud). * * The latest version of this code can be obtained at: * http://kstenerud.cjb.net */ /* ======================================================================== */ /* ================================ INCLUDES ============================== */ /* ======================================================================== */ #include #include #include #include "m68k.h" #ifndef DECL_SPEC #define DECL_SPEC #endif /* ======================================================================== */ /* ============================ GENERAL DEFINES =========================== */ /* ======================================================================== */ /* unsigned int and int must be at least 32 bits wide */ #undef uint #define uint unsigned int /* Bit Isolation Functions */ #define BIT_0(A) ((A) & 0x00000001) #define BIT_1(A) ((A) & 0x00000002) #define BIT_2(A) ((A) & 0x00000004) #define BIT_3(A) ((A) & 0x00000008) #define BIT_4(A) ((A) & 0x00000010) #define BIT_5(A) ((A) & 0x00000020) #define BIT_6(A) ((A) & 0x00000040) #define BIT_7(A) ((A) & 0x00000080) #define BIT_8(A) ((A) & 0x00000100) #define BIT_9(A) ((A) & 0x00000200) #define BIT_A(A) ((A) & 0x00000400) #define BIT_B(A) ((A) & 0x00000800) #define BIT_C(A) ((A) & 0x00001000) #define BIT_D(A) ((A) & 0x00002000) #define BIT_E(A) ((A) & 0x00004000) #define BIT_F(A) ((A) & 0x00008000) #define BIT_10(A) ((A) & 0x00010000) #define BIT_11(A) ((A) & 0x00020000) #define BIT_12(A) ((A) & 0x00040000) #define BIT_13(A) ((A) & 0x00080000) #define BIT_14(A) ((A) & 0x00100000) #define BIT_15(A) ((A) & 0x00200000) #define BIT_16(A) ((A) & 0x00400000) #define BIT_17(A) ((A) & 0x00800000) #define BIT_18(A) ((A) & 0x01000000) #define BIT_19(A) ((A) & 0x02000000) #define BIT_1A(A) ((A) & 0x04000000) #define BIT_1B(A) ((A) & 0x08000000) #define BIT_1C(A) ((A) & 0x10000000) #define BIT_1D(A) ((A) & 0x20000000) #define BIT_1E(A) ((A) & 0x40000000) #define BIT_1F(A) ((A) & 0x80000000) /* These are the CPU types understood by this disassembler */ #define TYPE_68000 1 #define TYPE_68008 2 #define TYPE_68010 4 #define TYPE_68020 8 #define TYPE_68030 16 #define TYPE_68040 32 #define M68000_ONLY (TYPE_68000 | TYPE_68008) #define M68010_ONLY TYPE_68010 #define M68010_LESS (TYPE_68000 | TYPE_68008 | TYPE_68010) #define M68010_PLUS (TYPE_68010 | TYPE_68020 | TYPE_68030 | TYPE_68040) #define M68020_ONLY TYPE_68020 #define M68020_LESS (TYPE_68010 | TYPE_68020) #define M68020_PLUS (TYPE_68020 | TYPE_68030 | TYPE_68040) #define M68030_ONLY TYPE_68030 #define M68030_LESS (TYPE_68010 | TYPE_68020 | TYPE_68030) #define M68030_PLUS (TYPE_68030 | TYPE_68040) #define M68040_PLUS TYPE_68040 /* Extension word formats */ #define EXT_8BIT_DISPLACEMENT(A) ((A)&0xff) #define EXT_FULL(A) BIT_8(A) #define EXT_EFFECTIVE_ZERO(A) (((A)&0xe4) == 0xc4 || ((A)&0xe2) == 0xc0) #define EXT_BASE_REGISTER_PRESENT(A) (!BIT_7(A)) #define EXT_INDEX_REGISTER_PRESENT(A) (!BIT_6(A)) #define EXT_INDEX_REGISTER(A) (((A)>>12)&7) #define EXT_INDEX_PRE_POST(A) (EXT_INDEX_PRESENT(A) && (A)&3) #define EXT_INDEX_PRE(A) (EXT_INDEX_PRESENT(A) && ((A)&7) < 4 && ((A)&7) != 0) #define EXT_INDEX_POST(A) (EXT_INDEX_PRESENT(A) && ((A)&7) > 4) #define EXT_INDEX_SCALE(A) (((A)>>9)&3) #define EXT_INDEX_LONG(A) BIT_B(A) #define EXT_INDEX_AR(A) BIT_F(A) #define EXT_BASE_DISPLACEMENT_PRESENT(A) (((A)&0x30) > 0x10) #define EXT_BASE_DISPLACEMENT_WORD(A) (((A)&0x30) == 0x20) #define EXT_BASE_DISPLACEMENT_LONG(A) (((A)&0x30) == 0x30) #define EXT_OUTER_DISPLACEMENT_PRESENT(A) (((A)&3) > 1 && ((A)&0x47) < 0x44) #define EXT_OUTER_DISPLACEMENT_WORD(A) (((A)&3) == 2 && ((A)&0x47) < 0x44) #define EXT_OUTER_DISPLACEMENT_LONG(A) (((A)&3) == 3 && ((A)&0x47) < 0x44) /* Opcode flags */ #if M68K_COMPILE_FOR_MAME == OPT_ON #define SET_OPCODE_FLAGS(x) g_opcode_type = x; #define COMBINE_OPCODE_FLAGS(x) ((x) | g_opcode_type | DASMFLAG_SUPPORTED) #else #define SET_OPCODE_FLAGS(x) #define COMBINE_OPCODE_FLAGS(x) (x) #endif /* ======================================================================== */ /* =============================== PROTOTYPES ============================= */ /* ======================================================================== */ /* Read data at the PC and increment PC */ uint read_imm_8(void); uint read_imm_16(void); uint read_imm_32(void); /* Read data at the PC but don't imcrement the PC */ uint peek_imm_8(void); uint peek_imm_16(void); uint peek_imm_32(void); /* make signed integers 100% portably */ static int make_int_8(int value); static int make_int_16(int value); /* make a string of a hex value */ static char* make_signed_hex_str_8(uint val); static char* make_signed_hex_str_16(uint val); static char* make_signed_hex_str_32(uint val); /* make string of ea mode */ static char* get_ea_mode_str(uint instruction, uint size); char* get_ea_mode_str_8(uint instruction); char* get_ea_mode_str_16(uint instruction); char* get_ea_mode_str_32(uint instruction); /* make string of immediate value */ static char* get_imm_str_s(uint size); static char* get_imm_str_u(uint size); char* get_imm_str_s8(void); char* get_imm_str_s16(void); char* get_imm_str_s32(void); /* Stuff to build the opcode handler jump table */ static void build_opcode_table(void); static int valid_ea(uint opcode, uint mask); static int DECL_SPEC compare_nof_true_bits(const void *aptr, const void *bptr); /* used to build opcode handler jump table */ typedef struct { void (*opcode_handler)(void); /* handler function */ uint mask; /* mask on opcode */ uint match; /* what to match after masking */ uint ea_mask; /* what ea modes are allowed */ } opcode_struct; /* ======================================================================== */ /* ================================= DATA ================================= */ /* ======================================================================== */ /* Opcode handler jump table */ static void (*g_instruction_table[0x10000])(void); /* Flag if disassembler initialized */ static int g_initialized = 0; /* Address mask to simulate address lines */ static unsigned int g_address_mask = 0xffffffff; static char g_dasm_str[100]; /* string to hold disassembly */ static char g_helper_str[100]; /* string to hold helpful info */ static uint g_cpu_pc; /* program counter */ static uint g_cpu_ir; /* instruction register */ static uint g_cpu_type; static uint g_opcode_type; static const unsigned char* g_rawop; static uint g_rawbasepc; /* used by ops like asr, ror, addq, etc */ static uint g_3bit_qdata_table[8] = {8, 1, 2, 3, 4, 5, 6, 7}; static uint g_5bit_data_table[32] = { 32, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; static const char* g_cc[16] = {"t", "f", "hi", "ls", "cc", "cs", "ne", "eq", "vc", "vs", "pl", "mi", "ge", "lt", "gt", "le"}; static const char* g_cpcc[64] = {/* 000 001 010 011 100 101 110 111 */ "f", "eq", "ogt", "oge", "olt", "ole", "ogl", "or", /* 000 */ "un", "ueq", "ugt", "uge", "ult", "ule", "ne", "t", /* 001 */ "sf", "seq", "gt", "ge", "lt", "le", "gl" "gle", /* 010 */ "ngle", "ngl", "nle", "nlt", "nge", "ngt", "sne", "st", /* 011 */ "?", "?", "?", "?", "?", "?", "?", "?", /* 100 */ "?", "?", "?", "?", "?", "?", "?", "?", /* 101 */ "?", "?", "?", "?", "?", "?", "?", "?", /* 110 */ "?", "?", "?", "?", "?", "?", "?", "?" /* 111 */ }; /* ======================================================================== */ /* =========================== UTILITY FUNCTIONS ========================== */ /* ======================================================================== */ #define LIMIT_CPU_TYPES(ALLOWED_CPU_TYPES) \ if(!(g_cpu_type & ALLOWED_CPU_TYPES)) \ { \ if((g_cpu_ir & 0xf000) == 0xf000) \ d68000_1111(); \ else d68000_illegal(); \ return; \ } static uint dasm_read_imm_8(uint advance) { uint result; if (g_rawop) result = g_rawop[g_cpu_pc + 1 - g_rawbasepc]; else result = m68k_read_disassembler_8(g_cpu_pc & g_address_mask) & 0xff; g_cpu_pc += advance; return result; } static uint dasm_read_imm_16(uint advance) { uint result; if (g_rawop) result = (g_rawop[g_cpu_pc + 0 - g_rawbasepc] << 8) | g_rawop[g_cpu_pc + 1 - g_rawbasepc]; else result = m68k_read_disassembler_16(g_cpu_pc & g_address_mask) & 0xffff; g_cpu_pc += advance; return result; } static uint dasm_read_imm_32(uint advance) { uint result; if (g_rawop) result = (g_rawop[g_cpu_pc + 0 - g_rawbasepc] << 24) | (g_rawop[g_cpu_pc + 1 - g_rawbasepc] << 16) | (g_rawop[g_cpu_pc + 2 - g_rawbasepc] << 8) | g_rawop[g_cpu_pc + 3 - g_rawbasepc]; else result = m68k_read_disassembler_32(g_cpu_pc & g_address_mask) & 0xffffffff; g_cpu_pc += advance; return result; } #define read_imm_8() dasm_read_imm_8(2) #define read_imm_16() dasm_read_imm_16(2) #define read_imm_32() dasm_read_imm_32(4) #define peek_imm_8() dasm_read_imm_8(0) #define peek_imm_16() dasm_read_imm_16(0) #define peek_imm_32() dasm_read_imm_32(0) /* Fake a split interface */ #define get_ea_mode_str_8(instruction) get_ea_mode_str(instruction, 0) #define get_ea_mode_str_16(instruction) get_ea_mode_str(instruction, 1) #define get_ea_mode_str_32(instruction) get_ea_mode_str(instruction, 2) #define get_imm_str_s8() get_imm_str_s(0) #define get_imm_str_s16() get_imm_str_s(1) #define get_imm_str_s32() get_imm_str_s(2) #define get_imm_str_u8() get_imm_str_u(0) #define get_imm_str_u16() get_imm_str_u(1) #define get_imm_str_u32() get_imm_str_u(2) /* 100% portable signed int generators */ static int make_int_8(int value) { return (value & 0x80) ? value | ~0xff : value & 0xff; } static int make_int_16(int value) { return (value & 0x8000) ? value | ~0xffff : value & 0xffff; } /* Get string representation of hex values */ static char* make_signed_hex_str_8(uint val) { static char str[20]; val &= 0xff; if(val == 0x80) sprintf(str, "-$80"); else if(val & 0x80) sprintf(str, "-$%x", (0-val) & 0x7f); else sprintf(str, "$%x", val & 0x7f); return str; } static char* make_signed_hex_str_16(uint val) { static char str[20]; val &= 0xffff; if(val == 0x8000) sprintf(str, "-$8000"); else if(val & 0x8000) sprintf(str, "-$%x", (0-val) & 0x7fff); else sprintf(str, "$%x", val & 0x7fff); return str; } static char* make_signed_hex_str_32(uint val) { static char str[20]; val &= 0xffffffff; if(val == 0x80000000) sprintf(str, "-$80000000"); else if(val & 0x80000000) sprintf(str, "-$%x", (0-val) & 0x7fffffff); else sprintf(str, "$%x", val & 0x7fffffff); return str; } /* make string of immediate value */ static char* get_imm_str_s(uint size) { static char str[15]; if(size == 0) sprintf(str, "#%s", make_signed_hex_str_8(read_imm_8())); else if(size == 1) sprintf(str, "#%s", make_signed_hex_str_16(read_imm_16())); else sprintf(str, "#%s", make_signed_hex_str_32(read_imm_32())); return str; } static char* get_imm_str_u(uint size) { static char str[15]; if(size == 0) sprintf(str, "#$%x", read_imm_8() & 0xff); else if(size == 1) sprintf(str, "#$%x", read_imm_16() & 0xffff); else sprintf(str, "#$%x", read_imm_32() & 0xffffffff); return str; } /* Make string of effective address mode */ static char* get_ea_mode_str(uint instruction, uint size) { static char b1[64]; static char b2[64]; static char* mode = b2; uint extension; uint base; uint outer; char base_reg[4]; char index_reg[8]; uint preindex; uint postindex; uint comma = 0; uint temp_value; char invalid_mode = 0; /* Switch buffers so we don't clobber on a double-call to this function */ mode = mode == b1 ? b2 : b1; switch(instruction & 0x3f) { case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07: /* data register direct */ sprintf(mode, "D%d", instruction&7); break; case 0x08: case 0x09: case 0x0a: case 0x0b: case 0x0c: case 0x0d: case 0x0e: case 0x0f: /* address register direct */ sprintf(mode, "A%d", instruction&7); break; case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17: /* address register indirect */ sprintf(mode, "(A%d)", instruction&7); break; case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f: /* address register indirect with postincrement */ sprintf(mode, "(A%d)+", instruction&7); break; case 0x20: case 0x21: case 0x22: case 0x23: case 0x24: case 0x25: case 0x26: case 0x27: /* address register indirect with predecrement */ sprintf(mode, "-(A%d)", instruction&7); break; case 0x28: case 0x29: case 0x2a: case 0x2b: case 0x2c: case 0x2d: case 0x2e: case 0x2f: /* address register indirect with displacement*/ sprintf(mode, "(%s,A%d)", make_signed_hex_str_16(read_imm_16()), instruction&7); break; case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: case 0x35: case 0x36: case 0x37: /* address register indirect with index */ extension = read_imm_16(); if((g_cpu_type & M68010_LESS) && EXT_INDEX_SCALE(extension)) { invalid_mode = 1; break; } if(EXT_FULL(extension)) { if(g_cpu_type & M68010_LESS) { invalid_mode = 1; break; } if(EXT_EFFECTIVE_ZERO(extension)) { strcpy(mode, "0"); break; } base = EXT_BASE_DISPLACEMENT_PRESENT(extension) ? (EXT_BASE_DISPLACEMENT_LONG(extension) ? read_imm_32() : read_imm_16()) : 0; outer = EXT_OUTER_DISPLACEMENT_PRESENT(extension) ? (EXT_OUTER_DISPLACEMENT_LONG(extension) ? read_imm_32() : read_imm_16()) : 0; if(EXT_BASE_REGISTER_PRESENT(extension)) sprintf(base_reg, "A%d", instruction&7); else *base_reg = 0; if(EXT_INDEX_REGISTER_PRESENT(extension)) { sprintf(index_reg, "%c%d.%c", EXT_INDEX_AR(extension) ? 'A' : 'D', EXT_INDEX_REGISTER(extension), EXT_INDEX_LONG(extension) ? 'l' : 'w'); if(EXT_INDEX_SCALE(extension)) sprintf(index_reg+strlen(index_reg), "*%d", 1 << EXT_INDEX_SCALE(extension)); } else *index_reg = 0; preindex = (extension&7) > 0 && (extension&7) < 4; postindex = (extension&7) > 4; strcpy(mode, "("); if(preindex || postindex) strcat(mode, "["); if(base) { strcat(mode, make_signed_hex_str_16(base)); comma = 1; } if(*base_reg) { if(comma) strcat(mode, ","); strcat(mode, base_reg); comma = 1; } if(postindex) { strcat(mode, "]"); comma = 1; } if(*index_reg) { if(comma) strcat(mode, ","); strcat(mode, index_reg); comma = 1; } if(preindex) { strcat(mode, "]"); comma = 1; } if(outer) { if(comma) strcat(mode, ","); strcat(mode, make_signed_hex_str_16(outer)); } strcat(mode, ")"); break; } if(EXT_8BIT_DISPLACEMENT(extension) == 0) sprintf(mode, "(A%d,%c%d.%c", instruction&7, EXT_INDEX_AR(extension) ? 'A' : 'D', EXT_INDEX_REGISTER(extension), EXT_INDEX_LONG(extension) ? 'l' : 'w'); else sprintf(mode, "(%s,A%d,%c%d.%c", make_signed_hex_str_8(extension), instruction&7, EXT_INDEX_AR(extension) ? 'A' : 'D', EXT_INDEX_REGISTER(extension), EXT_INDEX_LONG(extension) ? 'l' : 'w'); if(EXT_INDEX_SCALE(extension)) sprintf(mode+strlen(mode), "*%d", 1 << EXT_INDEX_SCALE(extension)); strcat(mode, ")"); break; case 0x38: /* absolute short address */ sprintf(mode, "$%x.w", read_imm_16()); break; case 0x39: /* absolute long address */ sprintf(mode, "$%x.l", read_imm_32()); break; case 0x3a: /* program counter with displacement */ temp_value = read_imm_16(); sprintf(mode, "(%s,PC)", make_signed_hex_str_16(temp_value)); sprintf(g_helper_str, "; ($%x)", (make_int_16(temp_value) + g_cpu_pc-2) & 0xffffffff); break; case 0x3b: /* program counter with index */ extension = read_imm_16(); if((g_cpu_type & M68010_LESS) && EXT_INDEX_SCALE(extension)) { invalid_mode = 1; break; } if(EXT_FULL(extension)) { if(g_cpu_type & M68010_LESS) { invalid_mode = 1; break; } if(EXT_EFFECTIVE_ZERO(extension)) { strcpy(mode, "0"); break; } base = EXT_BASE_DISPLACEMENT_PRESENT(extension) ? (EXT_BASE_DISPLACEMENT_LONG(extension) ? read_imm_32() : read_imm_16()) : 0; outer = EXT_OUTER_DISPLACEMENT_PRESENT(extension) ? (EXT_OUTER_DISPLACEMENT_LONG(extension) ? read_imm_32() : read_imm_16()) : 0; if(EXT_BASE_REGISTER_PRESENT(extension)) strcpy(base_reg, "PC"); else *base_reg = 0; if(EXT_INDEX_REGISTER_PRESENT(extension)) { sprintf(index_reg, "%c%d.%c", EXT_INDEX_AR(extension) ? 'A' : 'D', EXT_INDEX_REGISTER(extension), EXT_INDEX_LONG(extension) ? 'l' : 'w'); if(EXT_INDEX_SCALE(extension)) sprintf(index_reg+strlen(index_reg), "*%d", 1 << EXT_INDEX_SCALE(extension)); } else *index_reg = 0; preindex = (extension&7) > 0 && (extension&7) < 4; postindex = (extension&7) > 4; strcpy(mode, "("); if(preindex || postindex) strcat(mode, "["); if(base) { strcat(mode, make_signed_hex_str_16(base)); comma = 1; } if(*base_reg) { if(comma) strcat(mode, ","); strcat(mode, base_reg); comma = 1; } if(postindex) { strcat(mode, "]"); comma = 1; } if(*index_reg) { if(comma) strcat(mode, ","); strcat(mode, index_reg); comma = 1; } if(preindex) { strcat(mode, "]"); comma = 1; } if(outer) { if(comma) strcat(mode, ","); strcat(mode, make_signed_hex_str_16(outer)); } strcat(mode, ")"); break; } if(EXT_8BIT_DISPLACEMENT(extension) == 0) sprintf(mode, "(PC,%c%d.%c", EXT_INDEX_AR(extension) ? 'A' : 'D', EXT_INDEX_REGISTER(extension), EXT_INDEX_LONG(extension) ? 'l' : 'w'); else sprintf(mode, "(%s,PC,%c%d.%c", make_signed_hex_str_8(extension), EXT_INDEX_AR(extension) ? 'A' : 'D', EXT_INDEX_REGISTER(extension), EXT_INDEX_LONG(extension) ? 'l' : 'w'); if(EXT_INDEX_SCALE(extension)) sprintf(mode+strlen(mode), "*%d", 1 << EXT_INDEX_SCALE(extension)); strcat(mode, ")"); break; case 0x3c: /* Immediate */ sprintf(mode, "%s", get_imm_str_u(size)); break; default: invalid_mode = 1; } if(invalid_mode) sprintf(mode, "INVALID %x", instruction & 0x3f); return mode; } /* ======================================================================== */ /* ========================= INSTRUCTION HANDLERS ========================= */ /* ======================================================================== */ /* Instruction handler function names follow this convention: * * d68000_NAME_EXTENSIONS(void) * where NAME is the name of the opcode it handles and EXTENSIONS are any * extensions for special instances of that opcode. * * Examples: * d68000_add_er_8(): add opcode, from effective address to register, * size = byte * * d68000_asr_s_8(): arithmetic shift right, static count, size = byte * * * Common extensions: * 8 : size = byte * 16 : size = word * 32 : size = long * rr : register to register * mm : memory to memory * r : register * s : static * er : effective address -> register * re : register -> effective address * ea : using effective address mode of operation * d : data register direct * a : address register direct * ai : address register indirect * pi : address register indirect with postincrement * pd : address register indirect with predecrement * di : address register indirect with displacement * ix : address register indirect with index * aw : absolute word * al : absolute long */ static void d68000_illegal(void) { sprintf(g_dasm_str, "dc.w $%04x; ILLEGAL", g_cpu_ir); } static void d68000_1010(void) { sprintf(g_dasm_str, "dc.w $%04x; opcode 1010", g_cpu_ir); } static void d68000_1111(void) { sprintf(g_dasm_str, "dc.w $%04x; opcode 1111", g_cpu_ir); } static void d68000_abcd_rr(void) { sprintf(g_dasm_str, "abcd D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_abcd_mm(void) { sprintf(g_dasm_str, "abcd -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_add_er_8(void) { sprintf(g_dasm_str, "add.b %s, D%d", get_ea_mode_str_8(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_add_er_16(void) { sprintf(g_dasm_str, "add.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_add_er_32(void) { sprintf(g_dasm_str, "add.l %s, D%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_add_re_8(void) { sprintf(g_dasm_str, "add.b D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_add_re_16(void) { sprintf(g_dasm_str, "add.w D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_add_re_32(void) { sprintf(g_dasm_str, "add.l D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_adda_16(void) { sprintf(g_dasm_str, "adda.w %s, A%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_adda_32(void) { sprintf(g_dasm_str, "adda.l %s, A%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_addi_8(void) { char* str = get_imm_str_s8(); sprintf(g_dasm_str, "addi.b %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_addi_16(void) { char* str = get_imm_str_s16(); sprintf(g_dasm_str, "addi.w %s, %s", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_addi_32(void) { char* str = get_imm_str_s32(); sprintf(g_dasm_str, "addi.l %s, %s", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_addq_8(void) { sprintf(g_dasm_str, "addq.b #%d, %s", g_3bit_qdata_table[(g_cpu_ir>>9)&7], get_ea_mode_str_8(g_cpu_ir)); } static void d68000_addq_16(void) { sprintf(g_dasm_str, "addq.w #%d, %s", g_3bit_qdata_table[(g_cpu_ir>>9)&7], get_ea_mode_str_16(g_cpu_ir)); } static void d68000_addq_32(void) { sprintf(g_dasm_str, "addq.l #%d, %s", g_3bit_qdata_table[(g_cpu_ir>>9)&7], get_ea_mode_str_32(g_cpu_ir)); } static void d68000_addx_rr_8(void) { sprintf(g_dasm_str, "addx.b D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_addx_rr_16(void) { sprintf(g_dasm_str, "addx.w D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_addx_rr_32(void) { sprintf(g_dasm_str, "addx.l D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_addx_mm_8(void) { sprintf(g_dasm_str, "addx.b -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_addx_mm_16(void) { sprintf(g_dasm_str, "addx.w -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_addx_mm_32(void) { sprintf(g_dasm_str, "addx.l -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_and_er_8(void) { sprintf(g_dasm_str, "and.b %s, D%d", get_ea_mode_str_8(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_and_er_16(void) { sprintf(g_dasm_str, "and.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_and_er_32(void) { sprintf(g_dasm_str, "and.l %s, D%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_and_re_8(void) { sprintf(g_dasm_str, "and.b D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_and_re_16(void) { sprintf(g_dasm_str, "and.w D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_and_re_32(void) { sprintf(g_dasm_str, "and.l D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_andi_8(void) { char* str = get_imm_str_u8(); sprintf(g_dasm_str, "andi.b %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_andi_16(void) { char* str = get_imm_str_u16(); sprintf(g_dasm_str, "andi.w %s, %s", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_andi_32(void) { char* str = get_imm_str_u32(); sprintf(g_dasm_str, "andi.l %s, %s", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_andi_to_ccr(void) { sprintf(g_dasm_str, "andi %s, CCR", get_imm_str_u8()); } static void d68000_andi_to_sr(void) { sprintf(g_dasm_str, "andi %s, SR", get_imm_str_u16()); } static void d68000_asr_s_8(void) { sprintf(g_dasm_str, "asr.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_asr_s_16(void) { sprintf(g_dasm_str, "asr.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_asr_s_32(void) { sprintf(g_dasm_str, "asr.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_asr_r_8(void) { sprintf(g_dasm_str, "asr.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_asr_r_16(void) { sprintf(g_dasm_str, "asr.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_asr_r_32(void) { sprintf(g_dasm_str, "asr.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_asr_ea(void) { sprintf(g_dasm_str, "asr.w %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_asl_s_8(void) { sprintf(g_dasm_str, "asl.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_asl_s_16(void) { sprintf(g_dasm_str, "asl.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_asl_s_32(void) { sprintf(g_dasm_str, "asl.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_asl_r_8(void) { sprintf(g_dasm_str, "asl.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_asl_r_16(void) { sprintf(g_dasm_str, "asl.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_asl_r_32(void) { sprintf(g_dasm_str, "asl.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_asl_ea(void) { sprintf(g_dasm_str, "asl.w %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_bcc_8(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "b%-2s $%x", g_cc[(g_cpu_ir>>8)&0xf], temp_pc + make_int_8(g_cpu_ir)); } static void d68000_bcc_16(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "b%-2s $%x", g_cc[(g_cpu_ir>>8)&0xf], temp_pc + make_int_16(read_imm_16())); } static void d68020_bcc_32(void) { uint temp_pc = g_cpu_pc; LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "b%-2s $%x; (2+)", g_cc[(g_cpu_ir>>8)&0xf], temp_pc + read_imm_32()); } static void d68000_bchg_r(void) { sprintf(g_dasm_str, "bchg D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_bchg_s(void) { char* str = get_imm_str_u8(); sprintf(g_dasm_str, "bchg %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_bclr_r(void) { sprintf(g_dasm_str, "bclr D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_bclr_s(void) { char* str = get_imm_str_u8(); sprintf(g_dasm_str, "bclr %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68010_bkpt(void) { LIMIT_CPU_TYPES(M68010_PLUS); sprintf(g_dasm_str, "bkpt #%d; (1+)", g_cpu_ir&7); } static void d68020_bfchg(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bfchg %s {%s:%s}; (2+)", get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68020_bfclr(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bfclr %s {%s:%s}; (2+)", get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68020_bfexts(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bfexts D%d, %s {%s:%s}; (2+)", (extension>>12)&7, get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68020_bfextu(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bfextu D%d, %s {%s:%s}; (2+)", (extension>>12)&7, get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68020_bfffo(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bfffo D%d, %s {%s:%s}; (2+)", (extension>>12)&7, get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68020_bfins(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bfins D%d, %s {%s:%s}; (2+)", (extension>>12)&7, get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68020_bfset(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bfset %s {%s:%s}; (2+)", get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68020_bftst(void) { uint extension; char offset[3]; char width[3]; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(offset, "D%d", (extension>>6)&7); else sprintf(offset, "%d", (extension>>6)&31); if(BIT_5(extension)) sprintf(width, "D%d", extension&7); else sprintf(width, "%d", g_5bit_data_table[extension&31]); sprintf(g_dasm_str, "bftst %s {%s:%s}; (2+)", get_ea_mode_str_8(g_cpu_ir), offset, width); } static void d68000_bra_8(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "bra $%x", temp_pc + make_int_8(g_cpu_ir)); } static void d68000_bra_16(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "bra $%x", temp_pc + make_int_16(read_imm_16())); } static void d68020_bra_32(void) { uint temp_pc = g_cpu_pc; LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "bra $%x; (2+)", temp_pc + read_imm_32()); } static void d68000_bset_r(void) { sprintf(g_dasm_str, "bset D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_bset_s(void) { char* str = get_imm_str_u8(); sprintf(g_dasm_str, "bset %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_bsr_8(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "bsr $%x", temp_pc + make_int_8(g_cpu_ir)); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68000_bsr_16(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "bsr $%x", temp_pc + make_int_16(read_imm_16())); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68020_bsr_32(void) { uint temp_pc = g_cpu_pc; LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "bsr $%x; (2+)", temp_pc + read_imm_32()); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68000_btst_r(void) { sprintf(g_dasm_str, "btst D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_btst_s(void) { char* str = get_imm_str_u8(); sprintf(g_dasm_str, "btst %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68020_callm(void) { char* str; LIMIT_CPU_TYPES(M68020_ONLY); str = get_imm_str_u8(); sprintf(g_dasm_str, "callm %s, %s; (2)", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68020_cas_8(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); sprintf(g_dasm_str, "cas.b D%d, D%d, %s; (2+)", extension&7, (extension>>8)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68020_cas_16(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); sprintf(g_dasm_str, "cas.w D%d, D%d, %s; (2+)", extension&7, (extension>>8)&7, get_ea_mode_str_16(g_cpu_ir)); } static void d68020_cas_32(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); sprintf(g_dasm_str, "cas.l D%d, D%d, %s; (2+)", extension&7, (extension>>8)&7, get_ea_mode_str_32(g_cpu_ir)); } static void d68020_cas2_16(void) { /* CAS2 Dc1:Dc2,Du1:Dc2:(Rn1):(Rn2) f e d c b a 9 8 7 6 5 4 3 2 1 0 DARn1 0 0 0 Du1 0 0 0 Dc1 DARn2 0 0 0 Du2 0 0 0 Dc2 */ uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_32(); sprintf(g_dasm_str, "cas2.w D%d:D%d:D%d:D%d, (%c%d):(%c%d); (2+)", (extension>>16)&7, extension&7, (extension>>22)&7, (extension>>6)&7, BIT_1F(extension) ? 'A' : 'D', (extension>>28)&7, BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68020_cas2_32(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_32(); sprintf(g_dasm_str, "cas2.l D%d:D%d:D%d:D%d, (%c%d):(%c%d); (2+)", (extension>>16)&7, extension&7, (extension>>22)&7, (extension>>6)&7, BIT_1F(extension) ? 'A' : 'D', (extension>>28)&7, BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68000_chk_16(void) { sprintf(g_dasm_str, "chk.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68020_chk_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "chk.l %s, D%d; (2+)", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68020_chk2_cmp2_8(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); sprintf(g_dasm_str, "%s.b %s, %c%d; (2+)", BIT_B(extension) ? "chk2" : "cmp2", get_ea_mode_str_8(g_cpu_ir), BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68020_chk2_cmp2_16(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); sprintf(g_dasm_str, "%s.w %s, %c%d; (2+)", BIT_B(extension) ? "chk2" : "cmp2", get_ea_mode_str_16(g_cpu_ir), BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68020_chk2_cmp2_32(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); sprintf(g_dasm_str, "%s.l %s, %c%d; (2+)", BIT_B(extension) ? "chk2" : "cmp2", get_ea_mode_str_32(g_cpu_ir), BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68040_cinv(void) { LIMIT_CPU_TYPES(M68040_PLUS); switch((g_cpu_ir>>3)&3) { case 0: sprintf(g_dasm_str, "cinv (illegal scope); (4)"); break; case 1: sprintf(g_dasm_str, "cinvl %d, (A%d); (4)", (g_cpu_ir>>6)&3, g_cpu_ir&7); break; case 2: sprintf(g_dasm_str, "cinvp %d, (A%d); (4)", (g_cpu_ir>>6)&3, g_cpu_ir&7); break; case 3: sprintf(g_dasm_str, "cinva %d; (4)", (g_cpu_ir>>6)&3); break; } } static void d68000_clr_8(void) { sprintf(g_dasm_str, "clr.b %s", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_clr_16(void) { sprintf(g_dasm_str, "clr.w %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_clr_32(void) { sprintf(g_dasm_str, "clr.l %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_cmp_8(void) { sprintf(g_dasm_str, "cmp.b %s, D%d", get_ea_mode_str_8(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_cmp_16(void) { sprintf(g_dasm_str, "cmp.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_cmp_32(void) { sprintf(g_dasm_str, "cmp.l %s, D%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_cmpa_16(void) { sprintf(g_dasm_str, "cmpa.w %s, A%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_cmpa_32(void) { sprintf(g_dasm_str, "cmpa.l %s, A%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_cmpi_8(void) { char* str = get_imm_str_s8(); sprintf(g_dasm_str, "cmpi.b %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68020_cmpi_pcdi_8(void) { char* str; LIMIT_CPU_TYPES(M68010_PLUS); str = get_imm_str_s8(); sprintf(g_dasm_str, "cmpi.b %s, %s; (2+)", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68020_cmpi_pcix_8(void) { char* str; LIMIT_CPU_TYPES(M68010_PLUS); str = get_imm_str_s8(); sprintf(g_dasm_str, "cmpi.b %s, %s; (2+)", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_cmpi_16(void) { char* str; str = get_imm_str_s16(); sprintf(g_dasm_str, "cmpi.w %s, %s", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68020_cmpi_pcdi_16(void) { char* str; LIMIT_CPU_TYPES(M68010_PLUS); str = get_imm_str_s16(); sprintf(g_dasm_str, "cmpi.w %s, %s; (2+)", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68020_cmpi_pcix_16(void) { char* str; LIMIT_CPU_TYPES(M68010_PLUS); str = get_imm_str_s16(); sprintf(g_dasm_str, "cmpi.w %s, %s; (2+)", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_cmpi_32(void) { char* str; str = get_imm_str_s32(); sprintf(g_dasm_str, "cmpi.l %s, %s", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68020_cmpi_pcdi_32(void) { char* str; LIMIT_CPU_TYPES(M68010_PLUS); str = get_imm_str_s32(); sprintf(g_dasm_str, "cmpi.l %s, %s; (2+)", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68020_cmpi_pcix_32(void) { char* str; LIMIT_CPU_TYPES(M68010_PLUS); str = get_imm_str_s32(); sprintf(g_dasm_str, "cmpi.l %s, %s; (2+)", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_cmpm_8(void) { sprintf(g_dasm_str, "cmpm.b (A%d)+, (A%d)+", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_cmpm_16(void) { sprintf(g_dasm_str, "cmpm.w (A%d)+, (A%d)+", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_cmpm_32(void) { sprintf(g_dasm_str, "cmpm.l (A%d)+, (A%d)+", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68020_cpbcc_16(void) { uint extension; uint new_pc = g_cpu_pc; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); new_pc += make_int_16(read_imm_16()); sprintf(g_dasm_str, "%db%-4s %s; %x (extension = %x) (2-3)", (g_cpu_ir>>9)&7, g_cpcc[g_cpu_ir&0x3f], get_imm_str_s16(), new_pc, extension); } static void d68020_cpbcc_32(void) { uint extension; uint new_pc = g_cpu_pc; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); new_pc += read_imm_32(); sprintf(g_dasm_str, "%db%-4s %s; %x (extension = %x) (2-3)", (g_cpu_ir>>9)&7, g_cpcc[g_cpu_ir&0x3f], get_imm_str_s16(), new_pc, extension); } static void d68020_cpdbcc(void) { uint extension1; uint extension2; uint new_pc = g_cpu_pc; LIMIT_CPU_TYPES(M68020_PLUS); extension1 = read_imm_16(); extension2 = read_imm_16(); new_pc += make_int_16(read_imm_16()); sprintf(g_dasm_str, "%ddb%-4s D%d,%s; %x (extension = %x) (2-3)", (g_cpu_ir>>9)&7, g_cpcc[extension1&0x3f], g_cpu_ir&7, get_imm_str_s16(), new_pc, extension2); } static void d68020_cpgen(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "%dgen %s; (2-3)", (g_cpu_ir>>9)&7, get_imm_str_u32()); } static void d68020_cprestore(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "%drestore %s; (2-3)", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68020_cpsave(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "%dsave %s; (2-3)", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68020_cpscc(void) { uint extension1; uint extension2; LIMIT_CPU_TYPES(M68020_PLUS); extension1 = read_imm_16(); extension2 = read_imm_16(); sprintf(g_dasm_str, "%ds%-4s %s; (extension = %x) (2-3)", (g_cpu_ir>>9)&7, g_cpcc[extension1&0x3f], get_ea_mode_str_8(g_cpu_ir), extension2); } static void d68020_cptrapcc_0(void) { uint extension1; uint extension2; LIMIT_CPU_TYPES(M68020_PLUS); extension1 = read_imm_16(); extension2 = read_imm_16(); sprintf(g_dasm_str, "%dtrap%-4s; (extension = %x) (2-3)", (g_cpu_ir>>9)&7, g_cpcc[extension1&0x3f], extension2); } static void d68020_cptrapcc_16(void) { uint extension1; uint extension2; LIMIT_CPU_TYPES(M68020_PLUS); extension1 = read_imm_16(); extension2 = read_imm_16(); sprintf(g_dasm_str, "%dtrap%-4s %s; (extension = %x) (2-3)", (g_cpu_ir>>9)&7, g_cpcc[extension1&0x3f], get_imm_str_u16(), extension2); } static void d68020_cptrapcc_32(void) { uint extension1; uint extension2; LIMIT_CPU_TYPES(M68020_PLUS); extension1 = read_imm_16(); extension2 = read_imm_16(); sprintf(g_dasm_str, "%dtrap%-4s %s; (extension = %x) (2-3)", (g_cpu_ir>>9)&7, g_cpcc[extension1&0x3f], get_imm_str_u32(), extension2); } static void d68040_cpush(void) { LIMIT_CPU_TYPES(M68040_PLUS); switch((g_cpu_ir>>3)&3) { case 0: sprintf(g_dasm_str, "cpush (illegal scope); (4)"); break; case 1: sprintf(g_dasm_str, "cpushl %d, (A%d); (4)", (g_cpu_ir>>6)&3, g_cpu_ir&7); break; case 2: sprintf(g_dasm_str, "cpushp %d, (A%d); (4)", (g_cpu_ir>>6)&3, g_cpu_ir&7); break; case 3: sprintf(g_dasm_str, "cpusha %d; (4)", (g_cpu_ir>>6)&3); break; } } static void d68000_dbra(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "dbra D%d, $%x", g_cpu_ir & 7, temp_pc + make_int_16(read_imm_16())); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68000_dbcc(void) { uint temp_pc = g_cpu_pc; sprintf(g_dasm_str, "db%-2s D%d, $%x", g_cc[(g_cpu_ir>>8)&0xf], g_cpu_ir & 7, temp_pc + make_int_16(read_imm_16())); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68000_divs(void) { sprintf(g_dasm_str, "divs.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_divu(void) { sprintf(g_dasm_str, "divu.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68020_divl(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_A(extension)) sprintf(g_dasm_str, "div%c.l %s, D%d:D%d; (2+)", BIT_B(extension) ? 's' : 'u', get_ea_mode_str_32(g_cpu_ir), extension&7, (extension>>12)&7); else if((extension&7) == ((extension>>12)&7)) sprintf(g_dasm_str, "div%c.l %s, D%d; (2+)", BIT_B(extension) ? 's' : 'u', get_ea_mode_str_32(g_cpu_ir), (extension>>12)&7); else sprintf(g_dasm_str, "div%cl.l %s, D%d:D%d; (2+)", BIT_B(extension) ? 's' : 'u', get_ea_mode_str_32(g_cpu_ir), extension&7, (extension>>12)&7); } static void d68000_eor_8(void) { sprintf(g_dasm_str, "eor.b D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_eor_16(void) { sprintf(g_dasm_str, "eor.w D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_eor_32(void) { sprintf(g_dasm_str, "eor.l D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_eori_8(void) { char* str = get_imm_str_u8(); sprintf(g_dasm_str, "eori.b %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_eori_16(void) { char* str = get_imm_str_u16(); sprintf(g_dasm_str, "eori.w %s, %s", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_eori_32(void) { char* str = get_imm_str_u32(); sprintf(g_dasm_str, "eori.l %s, %s", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_eori_to_ccr(void) { sprintf(g_dasm_str, "eori %s, CCR", get_imm_str_u8()); } static void d68000_eori_to_sr(void) { sprintf(g_dasm_str, "eori %s, SR", get_imm_str_u16()); } static void d68000_exg_dd(void) { sprintf(g_dasm_str, "exg D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_exg_aa(void) { sprintf(g_dasm_str, "exg A%d, A%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_exg_da(void) { sprintf(g_dasm_str, "exg D%d, A%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_ext_16(void) { sprintf(g_dasm_str, "ext.w D%d", g_cpu_ir&7); } static void d68000_ext_32(void) { sprintf(g_dasm_str, "ext.l D%d", g_cpu_ir&7); } static void d68020_extb_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "extb.l D%d; (2+)", g_cpu_ir&7); } static void d68040_fpu(void) { char float_data_format[8][3] = { ".l", ".s", ".x", ".p", ".w", ".d", ".b", ".?" }; char mnemonic[40]; uint w2, src, dst_reg; LIMIT_CPU_TYPES(M68040_PLUS); w2 = read_imm_16(); src = (w2 >> 10) & 0x7; dst_reg = (w2 >> 7) & 0x7; switch ((w2 >> 13) & 0x7) { case 0x0: case 0x2: { switch(w2 & 0x7f) { case 0x00: sprintf(mnemonic, "fmove"); break; case 0x01: sprintf(mnemonic, "fint"); break; case 0x02: sprintf(mnemonic, "fsinh"); break; case 0x03: sprintf(mnemonic, "fintrz"); break; case 0x04: sprintf(mnemonic, "fsqrt"); break; case 0x06: sprintf(mnemonic, "flognp1"); break; case 0x08: sprintf(mnemonic, "fetoxm1"); break; case 0x09: sprintf(mnemonic, "ftanh1"); break; case 0x0a: sprintf(mnemonic, "fatan"); break; case 0x0c: sprintf(mnemonic, "fasin"); break; case 0x0d: sprintf(mnemonic, "fatanh"); break; case 0x0e: sprintf(mnemonic, "fsin"); break; case 0x0f: sprintf(mnemonic, "ftan"); break; case 0x10: sprintf(mnemonic, "fetox"); break; case 0x11: sprintf(mnemonic, "ftwotox"); break; case 0x12: sprintf(mnemonic, "ftentox"); break; case 0x14: sprintf(mnemonic, "flogn"); break; case 0x15: sprintf(mnemonic, "flog10"); break; case 0x16: sprintf(mnemonic, "flog2"); break; case 0x18: sprintf(mnemonic, "fabs"); break; case 0x19: sprintf(mnemonic, "fcosh"); break; case 0x1a: sprintf(mnemonic, "fneg"); break; case 0x1c: sprintf(mnemonic, "facos"); break; case 0x1d: sprintf(mnemonic, "fcos"); break; case 0x1e: sprintf(mnemonic, "fgetexp"); break; case 0x1f: sprintf(mnemonic, "fgetman"); break; case 0x20: sprintf(mnemonic, "fdiv"); break; case 0x21: sprintf(mnemonic, "fmod"); break; case 0x22: sprintf(mnemonic, "fadd"); break; case 0x23: sprintf(mnemonic, "fmul"); break; case 0x24: sprintf(mnemonic, "fsgldiv"); break; case 0x25: sprintf(mnemonic, "frem"); break; case 0x26: sprintf(mnemonic, "fscale"); break; case 0x27: sprintf(mnemonic, "fsglmul"); break; case 0x28: sprintf(mnemonic, "fsub"); break; case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: case 0x35: case 0x36: case 0x37: sprintf(mnemonic, "fsincos"); break; case 0x38: sprintf(mnemonic, "fcmp"); break; case 0x3a: sprintf(mnemonic, "ftst"); break; case 0x41: sprintf(mnemonic, "fssqrt"); break; case 0x45: sprintf(mnemonic, "fdsqrt"); break; case 0x58: sprintf(mnemonic, "fsabs"); break; case 0x5a: sprintf(mnemonic, "fsneg"); break; case 0x5c: sprintf(mnemonic, "fdabs"); break; case 0x5e: sprintf(mnemonic, "fdneg"); break; case 0x60: sprintf(mnemonic, "fsdiv"); break; case 0x62: sprintf(mnemonic, "fsadd"); break; case 0x63: sprintf(mnemonic, "fsmul"); break; case 0x64: sprintf(mnemonic, "fddiv"); break; case 0x66: sprintf(mnemonic, "fdadd"); break; case 0x67: sprintf(mnemonic, "fdmul"); break; case 0x68: sprintf(mnemonic, "fssub"); break; case 0x6c: sprintf(mnemonic, "fdsub"); break; default: sprintf(mnemonic, "FPU (?)"); break; } if (w2 & 0x4000) { sprintf(g_dasm_str, "%s%s %s, FP%d", mnemonic, float_data_format[src], get_ea_mode_str_32(g_cpu_ir), dst_reg); } else { sprintf(g_dasm_str, "%s.x FP%d, FP%d", mnemonic, src, dst_reg); } break; } case 0x3: { sprintf(g_dasm_str, "fmove /todo"); break; } case 0x4: case 0x5: { sprintf(g_dasm_str, "fmove /todo"); break; } case 0x6: case 0x7: { sprintf(g_dasm_str, "fmovem /todo"); break; } default: { sprintf(g_dasm_str, "FPU (?) "); break; } } } static void d68000_jmp(void) { sprintf(g_dasm_str, "jmp %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_jsr(void) { sprintf(g_dasm_str, "jsr %s", get_ea_mode_str_32(g_cpu_ir)); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68000_lea(void) { sprintf(g_dasm_str, "lea %s, A%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_link_16(void) { sprintf(g_dasm_str, "link A%d, %s", g_cpu_ir&7, get_imm_str_s16()); } static void d68020_link_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "link A%d, %s; (2+)", g_cpu_ir&7, get_imm_str_s32()); } static void d68000_lsr_s_8(void) { sprintf(g_dasm_str, "lsr.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_lsr_s_16(void) { sprintf(g_dasm_str, "lsr.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_lsr_s_32(void) { sprintf(g_dasm_str, "lsr.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_lsr_r_8(void) { sprintf(g_dasm_str, "lsr.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_lsr_r_16(void) { sprintf(g_dasm_str, "lsr.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_lsr_r_32(void) { sprintf(g_dasm_str, "lsr.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_lsr_ea(void) { sprintf(g_dasm_str, "lsr.w %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_lsl_s_8(void) { sprintf(g_dasm_str, "lsl.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_lsl_s_16(void) { sprintf(g_dasm_str, "lsl.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_lsl_s_32(void) { sprintf(g_dasm_str, "lsl.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_lsl_r_8(void) { sprintf(g_dasm_str, "lsl.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_lsl_r_16(void) { sprintf(g_dasm_str, "lsl.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_lsl_r_32(void) { sprintf(g_dasm_str, "lsl.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_lsl_ea(void) { sprintf(g_dasm_str, "lsl.w %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_move_8(void) { char* str = get_ea_mode_str_8(g_cpu_ir); sprintf(g_dasm_str, "move.b %s, %s", str, get_ea_mode_str_8(((g_cpu_ir>>9) & 7) | ((g_cpu_ir>>3) & 0x38))); } static void d68000_move_16(void) { char* str = get_ea_mode_str_16(g_cpu_ir); sprintf(g_dasm_str, "move.w %s, %s", str, get_ea_mode_str_16(((g_cpu_ir>>9) & 7) | ((g_cpu_ir>>3) & 0x38))); } static void d68000_move_32(void) { char* str = get_ea_mode_str_32(g_cpu_ir); sprintf(g_dasm_str, "move.l %s, %s", str, get_ea_mode_str_32(((g_cpu_ir>>9) & 7) | ((g_cpu_ir>>3) & 0x38))); } static void d68000_movea_16(void) { sprintf(g_dasm_str, "movea.w %s, A%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_movea_32(void) { sprintf(g_dasm_str, "movea.l %s, A%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_move_to_ccr(void) { sprintf(g_dasm_str, "move %s, CCR", get_ea_mode_str_8(g_cpu_ir)); } static void d68010_move_fr_ccr(void) { LIMIT_CPU_TYPES(M68010_PLUS); sprintf(g_dasm_str, "move CCR, %s; (1+)", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_move_fr_sr(void) { sprintf(g_dasm_str, "move SR, %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_move_to_sr(void) { sprintf(g_dasm_str, "move %s, SR", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_move_fr_usp(void) { sprintf(g_dasm_str, "move USP, A%d", g_cpu_ir&7); } static void d68000_move_to_usp(void) { sprintf(g_dasm_str, "move A%d, USP", g_cpu_ir&7); } static void d68010_movec(void) { uint extension; const char* reg_name; const char* processor; LIMIT_CPU_TYPES(M68010_PLUS); extension = read_imm_16(); switch(extension & 0xfff) { case 0x000: reg_name = "SFC"; processor = "1+"; break; case 0x001: reg_name = "DFC"; processor = "1+"; break; case 0x800: reg_name = "USP"; processor = "1+"; break; case 0x801: reg_name = "VBR"; processor = "1+"; break; case 0x002: reg_name = "CACR"; processor = "2+"; break; case 0x802: reg_name = "CAAR"; processor = "2,3"; break; case 0x803: reg_name = "MSP"; processor = "2+"; break; case 0x804: reg_name = "ISP"; processor = "2+"; break; case 0x003: reg_name = "TC"; processor = "4+"; break; case 0x004: reg_name = "ITT0"; processor = "4+"; break; case 0x005: reg_name = "ITT1"; processor = "4+"; break; case 0x006: reg_name = "DTT0"; processor = "4+"; break; case 0x007: reg_name = "DTT1"; processor = "4+"; break; case 0x805: reg_name = "MMUSR"; processor = "4+"; break; case 0x806: reg_name = "URP"; processor = "4+"; break; case 0x807: reg_name = "SRP"; processor = "4+"; break; default: reg_name = make_signed_hex_str_16(extension & 0xfff); processor = "?"; } if(BIT_0(g_cpu_ir)) sprintf(g_dasm_str, "movec %c%d, %s; (%s)", BIT_F(extension) ? 'A' : 'D', (extension>>12)&7, reg_name, processor); else sprintf(g_dasm_str, "movec %s, %c%d; (%s)", reg_name, BIT_F(extension) ? 'A' : 'D', (extension>>12)&7, processor); } static void d68000_movem_pd_16(void) { uint data = read_imm_16(); char buffer[40]; uint first; uint run_length; uint i; buffer[0] = 0; for(i=0;i<8;i++) { if(data&(1<<(15-i))) { first = i; run_length = 0; while(i<7 && (data&(1<<(15-(i+1))))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "D%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-D%d", first + run_length); } } for(i=0;i<8;i++) { if(data&(1<<(7-i))) { first = i; run_length = 0; while(i<7 && (data&(1<<(7-(i+1))))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "A%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-A%d", first + run_length); } } sprintf(g_dasm_str, "movem.w %s, %s", buffer, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_movem_pd_32(void) { uint data = read_imm_16(); char buffer[40]; uint first; uint run_length; uint i; buffer[0] = 0; for(i=0;i<8;i++) { if(data&(1<<(15-i))) { first = i; run_length = 0; while(i<7 && (data&(1<<(15-(i+1))))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "D%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-D%d", first + run_length); } } for(i=0;i<8;i++) { if(data&(1<<(7-i))) { first = i; run_length = 0; while(i<7 && (data&(1<<(7-(i+1))))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "A%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-A%d", first + run_length); } } sprintf(g_dasm_str, "movem.l %s, %s", buffer, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_movem_er_16(void) { uint data = read_imm_16(); char buffer[40]; uint first; uint run_length; uint i; buffer[0] = 0; for(i=0;i<8;i++) { if(data&(1< 0) sprintf(buffer+strlen(buffer), "-D%d", first + run_length); } } for(i=0;i<8;i++) { if(data&(1<<(i+8))) { first = i; run_length = 0; while(i<7 && (data&(1<<(i+8+1)))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "A%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-A%d", first + run_length); } } sprintf(g_dasm_str, "movem.w %s, %s", get_ea_mode_str_16(g_cpu_ir), buffer); } static void d68000_movem_er_32(void) { uint data = read_imm_16(); char buffer[40]; uint first; uint run_length; uint i; buffer[0] = 0; for(i=0;i<8;i++) { if(data&(1< 0) sprintf(buffer+strlen(buffer), "-D%d", first + run_length); } } for(i=0;i<8;i++) { if(data&(1<<(i+8))) { first = i; run_length = 0; while(i<7 && (data&(1<<(i+8+1)))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "A%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-A%d", first + run_length); } } sprintf(g_dasm_str, "movem.l %s, %s", get_ea_mode_str_32(g_cpu_ir), buffer); } static void d68000_movem_re_16(void) { uint data = read_imm_16(); char buffer[40]; uint first; uint run_length; uint i; buffer[0] = 0; for(i=0;i<8;i++) { if(data&(1< 0) sprintf(buffer+strlen(buffer), "-D%d", first + run_length); } } for(i=0;i<8;i++) { if(data&(1<<(i+8))) { first = i; run_length = 0; while(i<7 && (data&(1<<(i+8+1)))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "A%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-A%d", first + run_length); } } sprintf(g_dasm_str, "movem.w %s, %s", buffer, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_movem_re_32(void) { uint data = read_imm_16(); char buffer[40]; uint first; uint run_length; uint i; buffer[0] = 0; for(i=0;i<8;i++) { if(data&(1< 0) sprintf(buffer+strlen(buffer), "-D%d", first + run_length); } } for(i=0;i<8;i++) { if(data&(1<<(i+8))) { first = i; run_length = 0; while(i<7 && (data&(1<<(i+8+1)))) { i++; run_length++; } if(buffer[0] != 0) strcat(buffer, "/"); sprintf(buffer+strlen(buffer), "A%d", first); if(run_length > 0) sprintf(buffer+strlen(buffer), "-A%d", first + run_length); } } sprintf(g_dasm_str, "movem.l %s, %s", buffer, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_movep_re_16(void) { sprintf(g_dasm_str, "movep.w D%d, ($%x,A%d)", (g_cpu_ir>>9)&7, read_imm_16(), g_cpu_ir&7); } static void d68000_movep_re_32(void) { sprintf(g_dasm_str, "movep.l D%d, ($%x,A%d)", (g_cpu_ir>>9)&7, read_imm_16(), g_cpu_ir&7); } static void d68000_movep_er_16(void) { sprintf(g_dasm_str, "movep.w ($%x,A%d), D%d", read_imm_16(), g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_movep_er_32(void) { sprintf(g_dasm_str, "movep.l ($%x,A%d), D%d", read_imm_16(), g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68010_moves_8(void) { uint extension; LIMIT_CPU_TYPES(M68010_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(g_dasm_str, "moves.b %c%d, %s; (1+)", BIT_F(extension) ? 'A' : 'D', (extension>>12)&7, get_ea_mode_str_8(g_cpu_ir)); else sprintf(g_dasm_str, "moves.b %s, %c%d; (1+)", get_ea_mode_str_8(g_cpu_ir), BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68010_moves_16(void) { uint extension; LIMIT_CPU_TYPES(M68010_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(g_dasm_str, "moves.w %c%d, %s; (1+)", BIT_F(extension) ? 'A' : 'D', (extension>>12)&7, get_ea_mode_str_16(g_cpu_ir)); else sprintf(g_dasm_str, "moves.w %s, %c%d; (1+)", get_ea_mode_str_16(g_cpu_ir), BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68010_moves_32(void) { uint extension; LIMIT_CPU_TYPES(M68010_PLUS); extension = read_imm_16(); if(BIT_B(extension)) sprintf(g_dasm_str, "moves.l %c%d, %s; (1+)", BIT_F(extension) ? 'A' : 'D', (extension>>12)&7, get_ea_mode_str_32(g_cpu_ir)); else sprintf(g_dasm_str, "moves.l %s, %c%d; (1+)", get_ea_mode_str_32(g_cpu_ir), BIT_F(extension) ? 'A' : 'D', (extension>>12)&7); } static void d68000_moveq(void) { sprintf(g_dasm_str, "moveq #%s, D%d", make_signed_hex_str_8(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68040_move16_pi_pi(void) { LIMIT_CPU_TYPES(M68040_PLUS); sprintf(g_dasm_str, "move16 (A%d)+, (A%d)+; (4)", g_cpu_ir&7, (read_imm_16()>>12)&7); } static void d68040_move16_pi_al(void) { LIMIT_CPU_TYPES(M68040_PLUS); sprintf(g_dasm_str, "move16 (A%d)+, %s; (4)", g_cpu_ir&7, get_imm_str_u32()); } static void d68040_move16_al_pi(void) { LIMIT_CPU_TYPES(M68040_PLUS); sprintf(g_dasm_str, "move16 %s, (A%d)+; (4)", get_imm_str_u32(), g_cpu_ir&7); } static void d68040_move16_ai_al(void) { LIMIT_CPU_TYPES(M68040_PLUS); sprintf(g_dasm_str, "move16 (A%d), %s; (4)", g_cpu_ir&7, get_imm_str_u32()); } static void d68040_move16_al_ai(void) { LIMIT_CPU_TYPES(M68040_PLUS); sprintf(g_dasm_str, "move16 %s, (A%d); (4)", get_imm_str_u32(), g_cpu_ir&7); } static void d68000_muls(void) { sprintf(g_dasm_str, "muls.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_mulu(void) { sprintf(g_dasm_str, "mulu.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68020_mull(void) { uint extension; LIMIT_CPU_TYPES(M68020_PLUS); extension = read_imm_16(); if(BIT_A(extension)) sprintf(g_dasm_str, "mul%c.l %s, D%d-D%d; (2+)", BIT_B(extension) ? 's' : 'u', get_ea_mode_str_32(g_cpu_ir), extension&7, (extension>>12)&7); else sprintf(g_dasm_str, "mul%c.l %s, D%d; (2+)", BIT_B(extension) ? 's' : 'u', get_ea_mode_str_32(g_cpu_ir), (extension>>12)&7); } static void d68000_nbcd(void) { sprintf(g_dasm_str, "nbcd %s", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_neg_8(void) { sprintf(g_dasm_str, "neg.b %s", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_neg_16(void) { sprintf(g_dasm_str, "neg.w %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_neg_32(void) { sprintf(g_dasm_str, "neg.l %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_negx_8(void) { sprintf(g_dasm_str, "negx.b %s", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_negx_16(void) { sprintf(g_dasm_str, "negx.w %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_negx_32(void) { sprintf(g_dasm_str, "negx.l %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_nop(void) { sprintf(g_dasm_str, "nop"); } static void d68000_not_8(void) { sprintf(g_dasm_str, "not.b %s", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_not_16(void) { sprintf(g_dasm_str, "not.w %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_not_32(void) { sprintf(g_dasm_str, "not.l %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_or_er_8(void) { sprintf(g_dasm_str, "or.b %s, D%d", get_ea_mode_str_8(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_or_er_16(void) { sprintf(g_dasm_str, "or.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_or_er_32(void) { sprintf(g_dasm_str, "or.l %s, D%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_or_re_8(void) { sprintf(g_dasm_str, "or.b D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_or_re_16(void) { sprintf(g_dasm_str, "or.w D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_or_re_32(void) { sprintf(g_dasm_str, "or.l D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_ori_8(void) { char* str = get_imm_str_u8(); sprintf(g_dasm_str, "ori.b %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_ori_16(void) { char* str = get_imm_str_u16(); sprintf(g_dasm_str, "ori.w %s, %s", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_ori_32(void) { char* str = get_imm_str_u32(); sprintf(g_dasm_str, "ori.l %s, %s", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_ori_to_ccr(void) { sprintf(g_dasm_str, "ori %s, CCR", get_imm_str_u8()); } static void d68000_ori_to_sr(void) { sprintf(g_dasm_str, "ori %s, SR", get_imm_str_u16()); } static void d68020_pack_rr(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "pack D%d, D%d, %s; (2+)", g_cpu_ir&7, (g_cpu_ir>>9)&7, get_imm_str_u16()); } static void d68020_pack_mm(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "pack -(A%d), -(A%d), %s; (2+)", g_cpu_ir&7, (g_cpu_ir>>9)&7, get_imm_str_u16()); } static void d68000_pea(void) { sprintf(g_dasm_str, "pea %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68040_pflush(void) { LIMIT_CPU_TYPES(M68040_PLUS); if (g_cpu_ir & 0x10) { sprintf(g_dasm_str, "pflusha%s", (g_cpu_ir & 8) ? "" : "n"); } else { sprintf(g_dasm_str, "pflush%s(A%d)", (g_cpu_ir & 8) ? "" : "n", g_cpu_ir & 7); } } static void d68000_reset(void) { sprintf(g_dasm_str, "reset"); } static void d68000_ror_s_8(void) { sprintf(g_dasm_str, "ror.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_ror_s_16(void) { sprintf(g_dasm_str, "ror.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7],g_cpu_ir&7); } static void d68000_ror_s_32(void) { sprintf(g_dasm_str, "ror.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_ror_r_8(void) { sprintf(g_dasm_str, "ror.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_ror_r_16(void) { sprintf(g_dasm_str, "ror.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_ror_r_32(void) { sprintf(g_dasm_str, "ror.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_ror_ea(void) { sprintf(g_dasm_str, "ror.w %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_rol_s_8(void) { sprintf(g_dasm_str, "rol.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_rol_s_16(void) { sprintf(g_dasm_str, "rol.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_rol_s_32(void) { sprintf(g_dasm_str, "rol.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_rol_r_8(void) { sprintf(g_dasm_str, "rol.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_rol_r_16(void) { sprintf(g_dasm_str, "rol.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_rol_r_32(void) { sprintf(g_dasm_str, "rol.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_rol_ea(void) { sprintf(g_dasm_str, "rol.w %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_roxr_s_8(void) { sprintf(g_dasm_str, "roxr.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_roxr_s_16(void) { sprintf(g_dasm_str, "roxr.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_roxr_s_32(void) { sprintf(g_dasm_str, "roxr.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_roxr_r_8(void) { sprintf(g_dasm_str, "roxr.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_roxr_r_16(void) { sprintf(g_dasm_str, "roxr.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_roxr_r_32(void) { sprintf(g_dasm_str, "roxr.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_roxr_ea(void) { sprintf(g_dasm_str, "roxr.w %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_roxl_s_8(void) { sprintf(g_dasm_str, "roxl.b #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_roxl_s_16(void) { sprintf(g_dasm_str, "roxl.w #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_roxl_s_32(void) { sprintf(g_dasm_str, "roxl.l #%d, D%d", g_3bit_qdata_table[(g_cpu_ir>>9)&7], g_cpu_ir&7); } static void d68000_roxl_r_8(void) { sprintf(g_dasm_str, "roxl.b D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_roxl_r_16(void) { sprintf(g_dasm_str, "roxl.w D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_roxl_r_32(void) { sprintf(g_dasm_str, "roxl.l D%d, D%d", (g_cpu_ir>>9)&7, g_cpu_ir&7); } static void d68000_roxl_ea(void) { sprintf(g_dasm_str, "roxl.w %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68010_rtd(void) { LIMIT_CPU_TYPES(M68010_PLUS); sprintf(g_dasm_str, "rtd %s; (1+)", get_imm_str_s16()); SET_OPCODE_FLAGS(DASMFLAG_STEP_OUT); } static void d68000_rte(void) { sprintf(g_dasm_str, "rte"); SET_OPCODE_FLAGS(DASMFLAG_STEP_OUT); } static void d68020_rtm(void) { LIMIT_CPU_TYPES(M68020_ONLY); sprintf(g_dasm_str, "rtm %c%d; (2+)", BIT_3(g_cpu_ir) ? 'A' : 'D', g_cpu_ir&7); SET_OPCODE_FLAGS(DASMFLAG_STEP_OUT); } static void d68000_rtr(void) { sprintf(g_dasm_str, "rtr"); SET_OPCODE_FLAGS(DASMFLAG_STEP_OUT); } static void d68000_rts(void) { sprintf(g_dasm_str, "rts"); SET_OPCODE_FLAGS(DASMFLAG_STEP_OUT); } static void d68000_sbcd_rr(void) { sprintf(g_dasm_str, "sbcd D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_sbcd_mm(void) { sprintf(g_dasm_str, "sbcd -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_scc(void) { sprintf(g_dasm_str, "s%-2s %s", g_cc[(g_cpu_ir>>8)&0xf], get_ea_mode_str_8(g_cpu_ir)); } static void d68000_stop(void) { sprintf(g_dasm_str, "stop %s", get_imm_str_s16()); } static void d68000_sub_er_8(void) { sprintf(g_dasm_str, "sub.b %s, D%d", get_ea_mode_str_8(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_sub_er_16(void) { sprintf(g_dasm_str, "sub.w %s, D%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_sub_er_32(void) { sprintf(g_dasm_str, "sub.l %s, D%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_sub_re_8(void) { sprintf(g_dasm_str, "sub.b D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_sub_re_16(void) { sprintf(g_dasm_str, "sub.w D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_sub_re_32(void) { sprintf(g_dasm_str, "sub.l D%d, %s", (g_cpu_ir>>9)&7, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_suba_16(void) { sprintf(g_dasm_str, "suba.w %s, A%d", get_ea_mode_str_16(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_suba_32(void) { sprintf(g_dasm_str, "suba.l %s, A%d", get_ea_mode_str_32(g_cpu_ir), (g_cpu_ir>>9)&7); } static void d68000_subi_8(void) { char* str = get_imm_str_s8(); sprintf(g_dasm_str, "subi.b %s, %s", str, get_ea_mode_str_8(g_cpu_ir)); } static void d68000_subi_16(void) { char* str = get_imm_str_s16(); sprintf(g_dasm_str, "subi.w %s, %s", str, get_ea_mode_str_16(g_cpu_ir)); } static void d68000_subi_32(void) { char* str = get_imm_str_s32(); sprintf(g_dasm_str, "subi.l %s, %s", str, get_ea_mode_str_32(g_cpu_ir)); } static void d68000_subq_8(void) { sprintf(g_dasm_str, "subq.b #%d, %s", g_3bit_qdata_table[(g_cpu_ir>>9)&7], get_ea_mode_str_8(g_cpu_ir)); } static void d68000_subq_16(void) { sprintf(g_dasm_str, "subq.w #%d, %s", g_3bit_qdata_table[(g_cpu_ir>>9)&7], get_ea_mode_str_16(g_cpu_ir)); } static void d68000_subq_32(void) { sprintf(g_dasm_str, "subq.l #%d, %s", g_3bit_qdata_table[(g_cpu_ir>>9)&7], get_ea_mode_str_32(g_cpu_ir)); } static void d68000_subx_rr_8(void) { sprintf(g_dasm_str, "subx.b D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_subx_rr_16(void) { sprintf(g_dasm_str, "subx.w D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_subx_rr_32(void) { sprintf(g_dasm_str, "subx.l D%d, D%d", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_subx_mm_8(void) { sprintf(g_dasm_str, "subx.b -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_subx_mm_16(void) { sprintf(g_dasm_str, "subx.w -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_subx_mm_32(void) { sprintf(g_dasm_str, "subx.l -(A%d), -(A%d)", g_cpu_ir&7, (g_cpu_ir>>9)&7); } static void d68000_swap(void) { sprintf(g_dasm_str, "swap D%d", g_cpu_ir&7); } static void d68000_tas(void) { sprintf(g_dasm_str, "tas %s", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_trap(void) { sprintf(g_dasm_str, "trap #$%x", g_cpu_ir&0xf); } static void d68020_trapcc_0(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "trap%-2s; (2+)", g_cc[(g_cpu_ir>>8)&0xf]); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68020_trapcc_16(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "trap%-2s %s; (2+)", g_cc[(g_cpu_ir>>8)&0xf], get_imm_str_u16()); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68020_trapcc_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "trap%-2s %s; (2+)", g_cc[(g_cpu_ir>>8)&0xf], get_imm_str_u32()); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68000_trapv(void) { sprintf(g_dasm_str, "trapv"); SET_OPCODE_FLAGS(DASMFLAG_STEP_OVER); } static void d68000_tst_8(void) { sprintf(g_dasm_str, "tst.b %s", get_ea_mode_str_8(g_cpu_ir)); } static void d68020_tst_pcdi_8(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.b %s; (2+)", get_ea_mode_str_8(g_cpu_ir)); } static void d68020_tst_pcix_8(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.b %s; (2+)", get_ea_mode_str_8(g_cpu_ir)); } static void d68020_tst_i_8(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.b %s; (2+)", get_ea_mode_str_8(g_cpu_ir)); } static void d68000_tst_16(void) { sprintf(g_dasm_str, "tst.w %s", get_ea_mode_str_16(g_cpu_ir)); } static void d68020_tst_a_16(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.w %s; (2+)", get_ea_mode_str_16(g_cpu_ir)); } static void d68020_tst_pcdi_16(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.w %s; (2+)", get_ea_mode_str_16(g_cpu_ir)); } static void d68020_tst_pcix_16(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.w %s; (2+)", get_ea_mode_str_16(g_cpu_ir)); } static void d68020_tst_i_16(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.w %s; (2+)", get_ea_mode_str_16(g_cpu_ir)); } static void d68000_tst_32(void) { sprintf(g_dasm_str, "tst.l %s", get_ea_mode_str_32(g_cpu_ir)); } static void d68020_tst_a_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.l %s; (2+)", get_ea_mode_str_32(g_cpu_ir)); } static void d68020_tst_pcdi_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.l %s; (2+)", get_ea_mode_str_32(g_cpu_ir)); } static void d68020_tst_pcix_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.l %s; (2+)", get_ea_mode_str_32(g_cpu_ir)); } static void d68020_tst_i_32(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "tst.l %s; (2+)", get_ea_mode_str_32(g_cpu_ir)); } static void d68000_unlk(void) { sprintf(g_dasm_str, "unlk A%d", g_cpu_ir&7); } static void d68020_unpk_rr(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "unpk D%d, D%d, %s; (2+)", g_cpu_ir&7, (g_cpu_ir>>9)&7, get_imm_str_u16()); } static void d68020_unpk_mm(void) { LIMIT_CPU_TYPES(M68020_PLUS); sprintf(g_dasm_str, "unpk -(A%d), -(A%d), %s; (2+)", g_cpu_ir&7, (g_cpu_ir>>9)&7, get_imm_str_u16()); } /* ======================================================================== */ /* ======================= INSTRUCTION TABLE BUILDER ====================== */ /* ======================================================================== */ /* EA Masks: 800 = data register direct 400 = address register direct 200 = address register indirect 100 = ARI postincrement 80 = ARI pre-decrement 40 = ARI displacement 20 = ARI index 10 = absolute short 8 = absolute long 4 = immediate / sr 2 = pc displacement 1 = pc idx */ static opcode_struct g_opcode_info[] = { /* opcode handler mask match ea mask */ {d68000_1010 , 0xf000, 0xa000, 0x000}, {d68000_1111 , 0xf000, 0xf000, 0x000}, {d68000_abcd_rr , 0xf1f8, 0xc100, 0x000}, {d68000_abcd_mm , 0xf1f8, 0xc108, 0x000}, {d68000_add_er_8 , 0xf1c0, 0xd000, 0xbff}, {d68000_add_er_16 , 0xf1c0, 0xd040, 0xfff}, {d68000_add_er_32 , 0xf1c0, 0xd080, 0xfff}, {d68000_add_re_8 , 0xf1c0, 0xd100, 0x3f8}, {d68000_add_re_16 , 0xf1c0, 0xd140, 0x3f8}, {d68000_add_re_32 , 0xf1c0, 0xd180, 0x3f8}, {d68000_adda_16 , 0xf1c0, 0xd0c0, 0xfff}, {d68000_adda_32 , 0xf1c0, 0xd1c0, 0xfff}, {d68000_addi_8 , 0xffc0, 0x0600, 0xbf8}, {d68000_addi_16 , 0xffc0, 0x0640, 0xbf8}, {d68000_addi_32 , 0xffc0, 0x0680, 0xbf8}, {d68000_addq_8 , 0xf1c0, 0x5000, 0xbf8}, {d68000_addq_16 , 0xf1c0, 0x5040, 0xff8}, {d68000_addq_32 , 0xf1c0, 0x5080, 0xff8}, {d68000_addx_rr_8 , 0xf1f8, 0xd100, 0x000}, {d68000_addx_rr_16 , 0xf1f8, 0xd140, 0x000}, {d68000_addx_rr_32 , 0xf1f8, 0xd180, 0x000}, {d68000_addx_mm_8 , 0xf1f8, 0xd108, 0x000}, {d68000_addx_mm_16 , 0xf1f8, 0xd148, 0x000}, {d68000_addx_mm_32 , 0xf1f8, 0xd188, 0x000}, {d68000_and_er_8 , 0xf1c0, 0xc000, 0xbff}, {d68000_and_er_16 , 0xf1c0, 0xc040, 0xbff}, {d68000_and_er_32 , 0xf1c0, 0xc080, 0xbff}, {d68000_and_re_8 , 0xf1c0, 0xc100, 0x3f8}, {d68000_and_re_16 , 0xf1c0, 0xc140, 0x3f8}, {d68000_and_re_32 , 0xf1c0, 0xc180, 0x3f8}, {d68000_andi_to_ccr , 0xffff, 0x023c, 0x000}, {d68000_andi_to_sr , 0xffff, 0x027c, 0x000}, {d68000_andi_8 , 0xffc0, 0x0200, 0xbf8}, {d68000_andi_16 , 0xffc0, 0x0240, 0xbf8}, {d68000_andi_32 , 0xffc0, 0x0280, 0xbf8}, {d68000_asr_s_8 , 0xf1f8, 0xe000, 0x000}, {d68000_asr_s_16 , 0xf1f8, 0xe040, 0x000}, {d68000_asr_s_32 , 0xf1f8, 0xe080, 0x000}, {d68000_asr_r_8 , 0xf1f8, 0xe020, 0x000}, {d68000_asr_r_16 , 0xf1f8, 0xe060, 0x000}, {d68000_asr_r_32 , 0xf1f8, 0xe0a0, 0x000}, {d68000_asr_ea , 0xffc0, 0xe0c0, 0x3f8}, {d68000_asl_s_8 , 0xf1f8, 0xe100, 0x000}, {d68000_asl_s_16 , 0xf1f8, 0xe140, 0x000}, {d68000_asl_s_32 , 0xf1f8, 0xe180, 0x000}, {d68000_asl_r_8 , 0xf1f8, 0xe120, 0x000}, {d68000_asl_r_16 , 0xf1f8, 0xe160, 0x000}, {d68000_asl_r_32 , 0xf1f8, 0xe1a0, 0x000}, {d68000_asl_ea , 0xffc0, 0xe1c0, 0x3f8}, {d68000_bcc_8 , 0xf000, 0x6000, 0x000}, {d68000_bcc_16 , 0xf0ff, 0x6000, 0x000}, {d68020_bcc_32 , 0xf0ff, 0x60ff, 0x000}, {d68000_bchg_r , 0xf1c0, 0x0140, 0xbf8}, {d68000_bchg_s , 0xffc0, 0x0840, 0xbf8}, {d68000_bclr_r , 0xf1c0, 0x0180, 0xbf8}, {d68000_bclr_s , 0xffc0, 0x0880, 0xbf8}, {d68020_bfchg , 0xffc0, 0xeac0, 0xa78}, {d68020_bfclr , 0xffc0, 0xecc0, 0xa78}, {d68020_bfexts , 0xffc0, 0xebc0, 0xa7b}, {d68020_bfextu , 0xffc0, 0xe9c0, 0xa7b}, {d68020_bfffo , 0xffc0, 0xedc0, 0xa7b}, {d68020_bfins , 0xffc0, 0xefc0, 0xa78}, {d68020_bfset , 0xffc0, 0xeec0, 0xa78}, {d68020_bftst , 0xffc0, 0xe8c0, 0xa7b}, {d68010_bkpt , 0xfff8, 0x4848, 0x000}, {d68000_bra_8 , 0xff00, 0x6000, 0x000}, {d68000_bra_16 , 0xffff, 0x6000, 0x000}, {d68020_bra_32 , 0xffff, 0x60ff, 0x000}, {d68000_bset_r , 0xf1c0, 0x01c0, 0xbf8}, {d68000_bset_s , 0xffc0, 0x08c0, 0xbf8}, {d68000_bsr_8 , 0xff00, 0x6100, 0x000}, {d68000_bsr_16 , 0xffff, 0x6100, 0x000}, {d68020_bsr_32 , 0xffff, 0x61ff, 0x000}, {d68000_btst_r , 0xf1c0, 0x0100, 0xbff}, {d68000_btst_s , 0xffc0, 0x0800, 0xbfb}, {d68020_callm , 0xffc0, 0x06c0, 0x27b}, {d68020_cas_8 , 0xffc0, 0x0ac0, 0x3f8}, {d68020_cas_16 , 0xffc0, 0x0cc0, 0x3f8}, {d68020_cas_32 , 0xffc0, 0x0ec0, 0x3f8}, {d68020_cas2_16 , 0xffff, 0x0cfc, 0x000}, {d68020_cas2_32 , 0xffff, 0x0efc, 0x000}, {d68000_chk_16 , 0xf1c0, 0x4180, 0xbff}, {d68020_chk_32 , 0xf1c0, 0x4100, 0xbff}, {d68020_chk2_cmp2_8 , 0xffc0, 0x00c0, 0x27b}, {d68020_chk2_cmp2_16 , 0xffc0, 0x02c0, 0x27b}, {d68020_chk2_cmp2_32 , 0xffc0, 0x04c0, 0x27b}, {d68040_cinv , 0xff20, 0xf400, 0x000}, {d68000_clr_8 , 0xffc0, 0x4200, 0xbf8}, {d68000_clr_16 , 0xffc0, 0x4240, 0xbf8}, {d68000_clr_32 , 0xffc0, 0x4280, 0xbf8}, {d68000_cmp_8 , 0xf1c0, 0xb000, 0xbff}, {d68000_cmp_16 , 0xf1c0, 0xb040, 0xfff}, {d68000_cmp_32 , 0xf1c0, 0xb080, 0xfff}, {d68000_cmpa_16 , 0xf1c0, 0xb0c0, 0xfff}, {d68000_cmpa_32 , 0xf1c0, 0xb1c0, 0xfff}, {d68000_cmpi_8 , 0xffc0, 0x0c00, 0xbf8}, {d68020_cmpi_pcdi_8 , 0xffff, 0x0c3a, 0x000}, {d68020_cmpi_pcix_8 , 0xffff, 0x0c3b, 0x000}, {d68000_cmpi_16 , 0xffc0, 0x0c40, 0xbf8}, {d68020_cmpi_pcdi_16 , 0xffff, 0x0c7a, 0x000}, {d68020_cmpi_pcix_16 , 0xffff, 0x0c7b, 0x000}, {d68000_cmpi_32 , 0xffc0, 0x0c80, 0xbf8}, {d68020_cmpi_pcdi_32 , 0xffff, 0x0cba, 0x000}, {d68020_cmpi_pcix_32 , 0xffff, 0x0cbb, 0x000}, {d68000_cmpm_8 , 0xf1f8, 0xb108, 0x000}, {d68000_cmpm_16 , 0xf1f8, 0xb148, 0x000}, {d68000_cmpm_32 , 0xf1f8, 0xb188, 0x000}, {d68020_cpbcc_16 , 0xf1c0, 0xf080, 0x000}, {d68020_cpbcc_32 , 0xf1c0, 0xf0c0, 0x000}, {d68020_cpdbcc , 0xf1f8, 0xf048, 0x000}, {d68020_cpgen , 0xf1c0, 0xf000, 0x000}, {d68020_cprestore , 0xf1c0, 0xf140, 0x37f}, {d68020_cpsave , 0xf1c0, 0xf100, 0x2f8}, {d68020_cpscc , 0xf1c0, 0xf040, 0xbf8}, {d68020_cptrapcc_0 , 0xf1ff, 0xf07c, 0x000}, {d68020_cptrapcc_16 , 0xf1ff, 0xf07a, 0x000}, {d68020_cptrapcc_32 , 0xf1ff, 0xf07b, 0x000}, {d68040_cpush , 0xff20, 0xf420, 0x000}, {d68000_dbcc , 0xf0f8, 0x50c8, 0x000}, {d68000_dbra , 0xfff8, 0x51c8, 0x000}, {d68000_divs , 0xf1c0, 0x81c0, 0xbff}, {d68000_divu , 0xf1c0, 0x80c0, 0xbff}, {d68020_divl , 0xffc0, 0x4c40, 0xbff}, {d68000_eor_8 , 0xf1c0, 0xb100, 0xbf8}, {d68000_eor_16 , 0xf1c0, 0xb140, 0xbf8}, {d68000_eor_32 , 0xf1c0, 0xb180, 0xbf8}, {d68000_eori_to_ccr , 0xffff, 0x0a3c, 0x000}, {d68000_eori_to_sr , 0xffff, 0x0a7c, 0x000}, {d68000_eori_8 , 0xffc0, 0x0a00, 0xbf8}, {d68000_eori_16 , 0xffc0, 0x0a40, 0xbf8}, {d68000_eori_32 , 0xffc0, 0x0a80, 0xbf8}, {d68000_exg_dd , 0xf1f8, 0xc140, 0x000}, {d68000_exg_aa , 0xf1f8, 0xc148, 0x000}, {d68000_exg_da , 0xf1f8, 0xc188, 0x000}, {d68020_extb_32 , 0xfff8, 0x49c0, 0x000}, {d68000_ext_16 , 0xfff8, 0x4880, 0x000}, {d68000_ext_32 , 0xfff8, 0x48c0, 0x000}, {d68040_fpu , 0xffc0, 0xf200, 0x000}, {d68000_illegal , 0xffff, 0x4afc, 0x000}, {d68000_jmp , 0xffc0, 0x4ec0, 0x27b}, {d68000_jsr , 0xffc0, 0x4e80, 0x27b}, {d68000_lea , 0xf1c0, 0x41c0, 0x27b}, {d68000_link_16 , 0xfff8, 0x4e50, 0x000}, {d68020_link_32 , 0xfff8, 0x4808, 0x000}, {d68000_lsr_s_8 , 0xf1f8, 0xe008, 0x000}, {d68000_lsr_s_16 , 0xf1f8, 0xe048, 0x000}, {d68000_lsr_s_32 , 0xf1f8, 0xe088, 0x000}, {d68000_lsr_r_8 , 0xf1f8, 0xe028, 0x000}, {d68000_lsr_r_16 , 0xf1f8, 0xe068, 0x000}, {d68000_lsr_r_32 , 0xf1f8, 0xe0a8, 0x000}, {d68000_lsr_ea , 0xffc0, 0xe2c0, 0x3f8}, {d68000_lsl_s_8 , 0xf1f8, 0xe108, 0x000}, {d68000_lsl_s_16 , 0xf1f8, 0xe148, 0x000}, {d68000_lsl_s_32 , 0xf1f8, 0xe188, 0x000}, {d68000_lsl_r_8 , 0xf1f8, 0xe128, 0x000}, {d68000_lsl_r_16 , 0xf1f8, 0xe168, 0x000}, {d68000_lsl_r_32 , 0xf1f8, 0xe1a8, 0x000}, {d68000_lsl_ea , 0xffc0, 0xe3c0, 0x3f8}, {d68000_move_8 , 0xf000, 0x1000, 0xbff}, {d68000_move_16 , 0xf000, 0x3000, 0xfff}, {d68000_move_32 , 0xf000, 0x2000, 0xfff}, {d68000_movea_16 , 0xf1c0, 0x3040, 0xfff}, {d68000_movea_32 , 0xf1c0, 0x2040, 0xfff}, {d68000_move_to_ccr , 0xffc0, 0x44c0, 0xbff}, {d68010_move_fr_ccr , 0xffc0, 0x42c0, 0xbf8}, {d68000_move_to_sr , 0xffc0, 0x46c0, 0xbff}, {d68000_move_fr_sr , 0xffc0, 0x40c0, 0xbf8}, {d68000_move_to_usp , 0xfff8, 0x4e60, 0x000}, {d68000_move_fr_usp , 0xfff8, 0x4e68, 0x000}, {d68010_movec , 0xfffe, 0x4e7a, 0x000}, {d68000_movem_pd_16 , 0xfff8, 0x48a0, 0x000}, {d68000_movem_pd_32 , 0xfff8, 0x48e0, 0x000}, {d68000_movem_re_16 , 0xffc0, 0x4880, 0x2f8}, {d68000_movem_re_32 , 0xffc0, 0x48c0, 0x2f8}, {d68000_movem_er_16 , 0xffc0, 0x4c80, 0x37b}, {d68000_movem_er_32 , 0xffc0, 0x4cc0, 0x37b}, {d68000_movep_er_16 , 0xf1f8, 0x0108, 0x000}, {d68000_movep_er_32 , 0xf1f8, 0x0148, 0x000}, {d68000_movep_re_16 , 0xf1f8, 0x0188, 0x000}, {d68000_movep_re_32 , 0xf1f8, 0x01c8, 0x000}, {d68010_moves_8 , 0xffc0, 0x0e00, 0x3f8}, {d68010_moves_16 , 0xffc0, 0x0e40, 0x3f8}, {d68010_moves_32 , 0xffc0, 0x0e80, 0x3f8}, {d68000_moveq , 0xf100, 0x7000, 0x000}, {d68040_move16_pi_pi , 0xfff8, 0xf620, 0x000}, {d68040_move16_pi_al , 0xfff8, 0xf600, 0x000}, {d68040_move16_al_pi , 0xfff8, 0xf608, 0x000}, {d68040_move16_ai_al , 0xfff8, 0xf610, 0x000}, {d68040_move16_al_ai , 0xfff8, 0xf618, 0x000}, {d68000_muls , 0xf1c0, 0xc1c0, 0xbff}, {d68000_mulu , 0xf1c0, 0xc0c0, 0xbff}, {d68020_mull , 0xffc0, 0x4c00, 0xbff}, {d68000_nbcd , 0xffc0, 0x4800, 0xbf8}, {d68000_neg_8 , 0xffc0, 0x4400, 0xbf8}, {d68000_neg_16 , 0xffc0, 0x4440, 0xbf8}, {d68000_neg_32 , 0xffc0, 0x4480, 0xbf8}, {d68000_negx_8 , 0xffc0, 0x4000, 0xbf8}, {d68000_negx_16 , 0xffc0, 0x4040, 0xbf8}, {d68000_negx_32 , 0xffc0, 0x4080, 0xbf8}, {d68000_nop , 0xffff, 0x4e71, 0x000}, {d68000_not_8 , 0xffc0, 0x4600, 0xbf8}, {d68000_not_16 , 0xffc0, 0x4640, 0xbf8}, {d68000_not_32 , 0xffc0, 0x4680, 0xbf8}, {d68000_or_er_8 , 0xf1c0, 0x8000, 0xbff}, {d68000_or_er_16 , 0xf1c0, 0x8040, 0xbff}, {d68000_or_er_32 , 0xf1c0, 0x8080, 0xbff}, {d68000_or_re_8 , 0xf1c0, 0x8100, 0x3f8}, {d68000_or_re_16 , 0xf1c0, 0x8140, 0x3f8}, {d68000_or_re_32 , 0xf1c0, 0x8180, 0x3f8}, {d68000_ori_to_ccr , 0xffff, 0x003c, 0x000}, {d68000_ori_to_sr , 0xffff, 0x007c, 0x000}, {d68000_ori_8 , 0xffc0, 0x0000, 0xbf8}, {d68000_ori_16 , 0xffc0, 0x0040, 0xbf8}, {d68000_ori_32 , 0xffc0, 0x0080, 0xbf8}, {d68020_pack_rr , 0xf1f8, 0x8140, 0x000}, {d68020_pack_mm , 0xf1f8, 0x8148, 0x000}, {d68000_pea , 0xffc0, 0x4840, 0x27b}, {d68040_pflush , 0xffe0, 0xf500, 0x000}, {d68000_reset , 0xffff, 0x4e70, 0x000}, {d68000_ror_s_8 , 0xf1f8, 0xe018, 0x000}, {d68000_ror_s_16 , 0xf1f8, 0xe058, 0x000}, {d68000_ror_s_32 , 0xf1f8, 0xe098, 0x000}, {d68000_ror_r_8 , 0xf1f8, 0xe038, 0x000}, {d68000_ror_r_16 , 0xf1f8, 0xe078, 0x000}, {d68000_ror_r_32 , 0xf1f8, 0xe0b8, 0x000}, {d68000_ror_ea , 0xffc0, 0xe6c0, 0x3f8}, {d68000_rol_s_8 , 0xf1f8, 0xe118, 0x000}, {d68000_rol_s_16 , 0xf1f8, 0xe158, 0x000}, {d68000_rol_s_32 , 0xf1f8, 0xe198, 0x000}, {d68000_rol_r_8 , 0xf1f8, 0xe138, 0x000}, {d68000_rol_r_16 , 0xf1f8, 0xe178, 0x000}, {d68000_rol_r_32 , 0xf1f8, 0xe1b8, 0x000}, {d68000_rol_ea , 0xffc0, 0xe7c0, 0x3f8}, {d68000_roxr_s_8 , 0xf1f8, 0xe010, 0x000}, {d68000_roxr_s_16 , 0xf1f8, 0xe050, 0x000}, {d68000_roxr_s_32 , 0xf1f8, 0xe090, 0x000}, {d68000_roxr_r_8 , 0xf1f8, 0xe030, 0x000}, {d68000_roxr_r_16 , 0xf1f8, 0xe070, 0x000}, {d68000_roxr_r_32 , 0xf1f8, 0xe0b0, 0x000}, {d68000_roxr_ea , 0xffc0, 0xe4c0, 0x3f8}, {d68000_roxl_s_8 , 0xf1f8, 0xe110, 0x000}, {d68000_roxl_s_16 , 0xf1f8, 0xe150, 0x000}, {d68000_roxl_s_32 , 0xf1f8, 0xe190, 0x000}, {d68000_roxl_r_8 , 0xf1f8, 0xe130, 0x000}, {d68000_roxl_r_16 , 0xf1f8, 0xe170, 0x000}, {d68000_roxl_r_32 , 0xf1f8, 0xe1b0, 0x000}, {d68000_roxl_ea , 0xffc0, 0xe5c0, 0x3f8}, {d68010_rtd , 0xffff, 0x4e74, 0x000}, {d68000_rte , 0xffff, 0x4e73, 0x000}, {d68020_rtm , 0xfff0, 0x06c0, 0x000}, {d68000_rtr , 0xffff, 0x4e77, 0x000}, {d68000_rts , 0xffff, 0x4e75, 0x000}, {d68000_sbcd_rr , 0xf1f8, 0x8100, 0x000}, {d68000_sbcd_mm , 0xf1f8, 0x8108, 0x000}, {d68000_scc , 0xf0c0, 0x50c0, 0xbf8}, {d68000_stop , 0xffff, 0x4e72, 0x000}, {d68000_sub_er_8 , 0xf1c0, 0x9000, 0xbff}, {d68000_sub_er_16 , 0xf1c0, 0x9040, 0xfff}, {d68000_sub_er_32 , 0xf1c0, 0x9080, 0xfff}, {d68000_sub_re_8 , 0xf1c0, 0x9100, 0x3f8}, {d68000_sub_re_16 , 0xf1c0, 0x9140, 0x3f8}, {d68000_sub_re_32 , 0xf1c0, 0x9180, 0x3f8}, {d68000_suba_16 , 0xf1c0, 0x90c0, 0xfff}, {d68000_suba_32 , 0xf1c0, 0x91c0, 0xfff}, {d68000_subi_8 , 0xffc0, 0x0400, 0xbf8}, {d68000_subi_16 , 0xffc0, 0x0440, 0xbf8}, {d68000_subi_32 , 0xffc0, 0x0480, 0xbf8}, {d68000_subq_8 , 0xf1c0, 0x5100, 0xbf8}, {d68000_subq_16 , 0xf1c0, 0x5140, 0xff8}, {d68000_subq_32 , 0xf1c0, 0x5180, 0xff8}, {d68000_subx_rr_8 , 0xf1f8, 0x9100, 0x000}, {d68000_subx_rr_16 , 0xf1f8, 0x9140, 0x000}, {d68000_subx_rr_32 , 0xf1f8, 0x9180, 0x000}, {d68000_subx_mm_8 , 0xf1f8, 0x9108, 0x000}, {d68000_subx_mm_16 , 0xf1f8, 0x9148, 0x000}, {d68000_subx_mm_32 , 0xf1f8, 0x9188, 0x000}, {d68000_swap , 0xfff8, 0x4840, 0x000}, {d68000_tas , 0xffc0, 0x4ac0, 0xbf8}, {d68000_trap , 0xfff0, 0x4e40, 0x000}, {d68020_trapcc_0 , 0xf0ff, 0x50fc, 0x000}, {d68020_trapcc_16 , 0xf0ff, 0x50fa, 0x000}, {d68020_trapcc_32 , 0xf0ff, 0x50fb, 0x000}, {d68000_trapv , 0xffff, 0x4e76, 0x000}, {d68000_tst_8 , 0xffc0, 0x4a00, 0xbf8}, {d68020_tst_pcdi_8 , 0xffff, 0x4a3a, 0x000}, {d68020_tst_pcix_8 , 0xffff, 0x4a3b, 0x000}, {d68020_tst_i_8 , 0xffff, 0x4a3c, 0x000}, {d68000_tst_16 , 0xffc0, 0x4a40, 0xbf8}, {d68020_tst_a_16 , 0xfff8, 0x4a48, 0x000}, {d68020_tst_pcdi_16 , 0xffff, 0x4a7a, 0x000}, {d68020_tst_pcix_16 , 0xffff, 0x4a7b, 0x000}, {d68020_tst_i_16 , 0xffff, 0x4a7c, 0x000}, {d68000_tst_32 , 0xffc0, 0x4a80, 0xbf8}, {d68020_tst_a_32 , 0xfff8, 0x4a88, 0x000}, {d68020_tst_pcdi_32 , 0xffff, 0x4aba, 0x000}, {d68020_tst_pcix_32 , 0xffff, 0x4abb, 0x000}, {d68020_tst_i_32 , 0xffff, 0x4abc, 0x000}, {d68000_unlk , 0xfff8, 0x4e58, 0x000}, {d68020_unpk_rr , 0xf1f8, 0x8180, 0x000}, {d68020_unpk_mm , 0xf1f8, 0x8188, 0x000}, {0, 0, 0, 0} }; /* Check if opcode is using a valid ea mode */ static int valid_ea(uint opcode, uint mask) { if(mask == 0) return 1; switch(opcode & 0x3f) { case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07: return (mask & 0x800) != 0; case 0x08: case 0x09: case 0x0a: case 0x0b: case 0x0c: case 0x0d: case 0x0e: case 0x0f: return (mask & 0x400) != 0; case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17: return (mask & 0x200) != 0; case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f: return (mask & 0x100) != 0; case 0x20: case 0x21: case 0x22: case 0x23: case 0x24: case 0x25: case 0x26: case 0x27: return (mask & 0x080) != 0; case 0x28: case 0x29: case 0x2a: case 0x2b: case 0x2c: case 0x2d: case 0x2e: case 0x2f: return (mask & 0x040) != 0; case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: case 0x35: case 0x36: case 0x37: return (mask & 0x020) != 0; case 0x38: return (mask & 0x010) != 0; case 0x39: return (mask & 0x008) != 0; case 0x3a: return (mask & 0x002) != 0; case 0x3b: return (mask & 0x001) != 0; case 0x3c: return (mask & 0x004) != 0; } return 0; } /* Used by qsort */ static int DECL_SPEC compare_nof_true_bits(const void *aptr, const void *bptr) { uint a = ((const opcode_struct*)aptr)->mask; uint b = ((const opcode_struct*)bptr)->mask; a = ((a & 0xAAAA) >> 1) + (a & 0x5555); a = ((a & 0xCCCC) >> 2) + (a & 0x3333); a = ((a & 0xF0F0) >> 4) + (a & 0x0F0F); a = ((a & 0xFF00) >> 8) + (a & 0x00FF); b = ((b & 0xAAAA) >> 1) + (b & 0x5555); b = ((b & 0xCCCC) >> 2) + (b & 0x3333); b = ((b & 0xF0F0) >> 4) + (b & 0x0F0F); b = ((b & 0xFF00) >> 8) + (b & 0x00FF); return b - a; /* reversed to get greatest to least sorting */ } /* build the opcode handler jump table */ static void build_opcode_table(void) { uint i; uint opcode; opcode_struct* ostruct; uint opcode_info_length = 0; for(ostruct = g_opcode_info;ostruct->opcode_handler != 0;ostruct++) opcode_info_length++; qsort((void *)g_opcode_info, opcode_info_length, sizeof(g_opcode_info[0]), compare_nof_true_bits); for(i=0;i<0x10000;i++) { g_instruction_table[i] = d68000_illegal; /* default to illegal */ opcode = i; /* search through opcode info for a match */ for(ostruct = g_opcode_info;ostruct->opcode_handler != 0;ostruct++) { /* match opcode mask and allowed ea modes */ if((opcode & ostruct->mask) == ostruct->match) { /* Handle destination ea for move instructions */ if((ostruct->opcode_handler == d68000_move_8 || ostruct->opcode_handler == d68000_move_16 || ostruct->opcode_handler == d68000_move_32) && !valid_ea(((opcode>>9)&7) | ((opcode>>3)&0x38), 0xbf8)) continue; if(valid_ea(opcode, ostruct->ea_mask)) { g_instruction_table[i] = ostruct->opcode_handler; break; } } } } } /* ======================================================================== */ /* ================================= API ================================== */ /* ======================================================================== */ /* Disasemble one instruction at pc and store in str_buff */ unsigned int m68k_disassemble(char* str_buff, unsigned int pc, unsigned int cpu_type) { if(!g_initialized) { build_opcode_table(); g_initialized = 1; } switch(cpu_type) { case M68K_CPU_TYPE_68000: g_cpu_type = TYPE_68000; g_address_mask = 0x00ffffff; break; case M68K_CPU_TYPE_68008: g_cpu_type = TYPE_68008; g_address_mask = 0x003fffff; break; case M68K_CPU_TYPE_68010: g_cpu_type = TYPE_68010; g_address_mask = 0x00ffffff; break; case M68K_CPU_TYPE_68EC020: g_cpu_type = TYPE_68020; g_address_mask = 0x00ffffff; break; case M68K_CPU_TYPE_68020: g_cpu_type = TYPE_68020; g_address_mask = 0xffffffff; break; case M68K_CPU_TYPE_68030: g_cpu_type = TYPE_68030; g_address_mask = 0xffffffff; break; case M68K_CPU_TYPE_68040: g_cpu_type = TYPE_68040; g_address_mask = 0xffffffff; break; default: return 0; } g_cpu_pc = pc; g_helper_str[0] = 0; g_cpu_ir = read_imm_16(); g_opcode_type = 0; g_instruction_table[g_cpu_ir](); sprintf(str_buff, "%s%s", g_dasm_str, g_helper_str); return COMBINE_OPCODE_FLAGS(g_cpu_pc - pc); } char* m68ki_disassemble_quick(unsigned int pc, unsigned int cpu_type) { static char buff[100]; buff[0] = 0; m68k_disassemble(buff, pc, cpu_type); return buff; } unsigned int m68k_disassemble_raw(char* str_buff, unsigned int pc, const unsigned char* opdata, const unsigned char* argdata, unsigned int cpu_type) { unsigned int result; (void)argdata; g_rawop = opdata; g_rawbasepc = pc; result = m68k_disassemble(str_buff, pc, cpu_type); g_rawop = NULL; return result; } /* Check if the instruction is a valid one */ unsigned int m68k_is_valid_instruction(unsigned int instruction, unsigned int cpu_type) { if(!g_initialized) { build_opcode_table(); g_initialized = 1; } instruction &= 0xffff; if(g_instruction_table[instruction] == d68000_illegal) return 0; switch(cpu_type) { case M68K_CPU_TYPE_68000: case M68K_CPU_TYPE_68008: if(g_instruction_table[instruction] == d68010_bkpt) return 0; if(g_instruction_table[instruction] == d68010_move_fr_ccr) return 0; if(g_instruction_table[instruction] == d68010_movec) return 0; if(g_instruction_table[instruction] == d68010_moves_8) return 0; if(g_instruction_table[instruction] == d68010_moves_16) return 0; if(g_instruction_table[instruction] == d68010_moves_32) return 0; if(g_instruction_table[instruction] == d68010_rtd) return 0; case M68K_CPU_TYPE_68010: if(g_instruction_table[instruction] == d68020_bcc_32) return 0; if(g_instruction_table[instruction] == d68020_bfchg) return 0; if(g_instruction_table[instruction] == d68020_bfclr) return 0; if(g_instruction_table[instruction] == d68020_bfexts) return 0; if(g_instruction_table[instruction] == d68020_bfextu) return 0; if(g_instruction_table[instruction] == d68020_bfffo) return 0; if(g_instruction_table[instruction] == d68020_bfins) return 0; if(g_instruction_table[instruction] == d68020_bfset) return 0; if(g_instruction_table[instruction] == d68020_bftst) return 0; if(g_instruction_table[instruction] == d68020_bra_32) return 0; if(g_instruction_table[instruction] == d68020_bsr_32) return 0; if(g_instruction_table[instruction] == d68020_callm) return 0; if(g_instruction_table[instruction] == d68020_cas_8) return 0; if(g_instruction_table[instruction] == d68020_cas_16) return 0; if(g_instruction_table[instruction] == d68020_cas_32) return 0; if(g_instruction_table[instruction] == d68020_cas2_16) return 0; if(g_instruction_table[instruction] == d68020_cas2_32) return 0; if(g_instruction_table[instruction] == d68020_chk_32) return 0; if(g_instruction_table[instruction] == d68020_chk2_cmp2_8) return 0; if(g_instruction_table[instruction] == d68020_chk2_cmp2_16) return 0; if(g_instruction_table[instruction] == d68020_chk2_cmp2_32) return 0; if(g_instruction_table[instruction] == d68020_cmpi_pcdi_8) return 0; if(g_instruction_table[instruction] == d68020_cmpi_pcix_8) return 0; if(g_instruction_table[instruction] == d68020_cmpi_pcdi_16) return 0; if(g_instruction_table[instruction] == d68020_cmpi_pcix_16) return 0; if(g_instruction_table[instruction] == d68020_cmpi_pcdi_32) return 0; if(g_instruction_table[instruction] == d68020_cmpi_pcix_32) return 0; if(g_instruction_table[instruction] == d68020_cpbcc_16) return 0; if(g_instruction_table[instruction] == d68020_cpbcc_32) return 0; if(g_instruction_table[instruction] == d68020_cpdbcc) return 0; if(g_instruction_table[instruction] == d68020_cpgen) return 0; if(g_instruction_table[instruction] == d68020_cprestore) return 0; if(g_instruction_table[instruction] == d68020_cpsave) return 0; if(g_instruction_table[instruction] == d68020_cpscc) return 0; if(g_instruction_table[instruction] == d68020_cptrapcc_0) return 0; if(g_instruction_table[instruction] == d68020_cptrapcc_16) return 0; if(g_instruction_table[instruction] == d68020_cptrapcc_32) return 0; if(g_instruction_table[instruction] == d68020_divl) return 0; if(g_instruction_table[instruction] == d68020_extb_32) return 0; if(g_instruction_table[instruction] == d68020_link_32) return 0; if(g_instruction_table[instruction] == d68020_mull) return 0; if(g_instruction_table[instruction] == d68020_pack_rr) return 0; if(g_instruction_table[instruction] == d68020_pack_mm) return 0; if(g_instruction_table[instruction] == d68020_rtm) return 0; if(g_instruction_table[instruction] == d68020_trapcc_0) return 0; if(g_instruction_table[instruction] == d68020_trapcc_16) return 0; if(g_instruction_table[instruction] == d68020_trapcc_32) return 0; if(g_instruction_table[instruction] == d68020_tst_pcdi_8) return 0; if(g_instruction_table[instruction] == d68020_tst_pcix_8) return 0; if(g_instruction_table[instruction] == d68020_tst_i_8) return 0; if(g_instruction_table[instruction] == d68020_tst_a_16) return 0; if(g_instruction_table[instruction] == d68020_tst_pcdi_16) return 0; if(g_instruction_table[instruction] == d68020_tst_pcix_16) return 0; if(g_instruction_table[instruction] == d68020_tst_i_16) return 0; if(g_instruction_table[instruction] == d68020_tst_a_32) return 0; if(g_instruction_table[instruction] == d68020_tst_pcdi_32) return 0; if(g_instruction_table[instruction] == d68020_tst_pcix_32) return 0; if(g_instruction_table[instruction] == d68020_tst_i_32) return 0; if(g_instruction_table[instruction] == d68020_unpk_rr) return 0; if(g_instruction_table[instruction] == d68020_unpk_mm) return 0; case M68K_CPU_TYPE_68EC020: case M68K_CPU_TYPE_68020: case M68K_CPU_TYPE_68030: if(g_instruction_table[instruction] == d68040_cinv) return 0; if(g_instruction_table[instruction] == d68040_cpush) return 0; if(g_instruction_table[instruction] == d68040_move16_pi_pi) return 0; if(g_instruction_table[instruction] == d68040_move16_pi_al) return 0; if(g_instruction_table[instruction] == d68040_move16_al_pi) return 0; if(g_instruction_table[instruction] == d68040_move16_ai_al) return 0; if(g_instruction_table[instruction] == d68040_move16_al_ai) return 0; if(g_instruction_table[instruction] == d68040_pflush) return 0; case M68K_CPU_TYPE_68040: if(g_instruction_table[instruction] == d68020_cpbcc_16) return 0; if(g_instruction_table[instruction] == d68020_cpbcc_32) return 0; if(g_instruction_table[instruction] == d68020_cpdbcc) return 0; if(g_instruction_table[instruction] == d68020_cpgen) return 0; if(g_instruction_table[instruction] == d68020_cprestore) return 0; if(g_instruction_table[instruction] == d68020_cpsave) return 0; if(g_instruction_table[instruction] == d68020_cpscc) return 0; if(g_instruction_table[instruction] == d68020_cptrapcc_0) return 0; if(g_instruction_table[instruction] == d68020_cptrapcc_16) return 0; if(g_instruction_table[instruction] == d68020_cptrapcc_32) return 0; } if(cpu_type != M68K_CPU_TYPE_68020 && cpu_type != M68K_CPU_TYPE_68EC020 && (g_instruction_table[instruction] == d68020_callm || g_instruction_table[instruction] == d68020_rtm)) return 0; return 1; } /* ======================================================================== */ /* ============================== END OF FILE ============================= */ /* ======================================================================== */