/* ======================================================================== */
/* ========================= LICENSING & COPYRIGHT ======================== */
/* ======================================================================== */
/*
* MUSASHI
* Version 3.32
*
* A portable Motorola M680x0 processor emulation engine.
* Copyright Karl Stenerud. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/* ======================================================================== */
/* ================================ INCLUDES ============================== */
/* ======================================================================== */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "m68k.h"
#ifndef uint32
#define uint32 uint
#endif
#ifndef uint16
#define uint16 unsigned short
#endif
#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_68010 2
#define TYPE_68020 4
#define TYPE_68030 8
#define TYPE_68040 16
#define M68000_ONLY TYPE_68000
#define M68010_ONLY TYPE_68010
#define M68010_LESS (TYPE_68000 | 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);
static int make_int_32(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 const uint g_3bit_qdata_table[8] = {8, 1, 2, 3, 4, 5, 6, 7};
static const 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 *const g_cc[16] =
{"t", "f", "hi", "ls", "cc", "cs", "ne", "eq", "vc", "vs", "pl", "mi", "ge", "lt", "gt", "le"};
static const char *const 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 */
};
static const char *const g_mmuregs[8] =
{
"tc", "drp", "srp", "crp", "cal", "val", "sccr", "acr"
};
static const char *const g_mmucond[16] =
{
"bs", "bc", "ls", "lc", "ss", "sc", "as", "ac",
"ws", "wc", "is", "ic", "gs", "gc", "cs", "cc"
};
/* ======================================================================== */
/* =========================== 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_16(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)
static int sext_7bit_int(int value)
{
return (value & 0x40) ? (value | 0xffffff80) : (value & 0x7f);
}
/* 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;
}
static int make_int_32(int value)
{
return (value & 0x80000000) ? value | ~0xffffffff : value & 0xffffffff;
}
/* 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;
/* 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(EXT_FULL(extension))
{
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)
{
if (EXT_BASE_DISPLACEMENT_LONG(extension))
{
strcat(mode, make_signed_hex_str_32(base));
}
else
{
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(EXT_FULL(extension))
{
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:
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 %s {%s:%s}, D%d; (2+)", get_ea_mode_str_8(g_cpu_ir), offset, width, (extension>>12)&7);
}
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 %s {%s:%s}, D%d; (2+)", get_ea_mode_str_8(g_cpu_ir), offset, width, (extension>>12)&7);
}
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 %s {%s:%s}, D%d; (2+)", get_ea_mode_str_8(g_cpu_ir), offset, width, (extension>>12)&7);
}
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>>6)&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>>6)&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>>6)&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);
if (((g_cpu_ir>>9)&7) == 1)
{
sprintf(g_dasm_str, "frestore %s", get_ea_mode_str_8(g_cpu_ir));
}
else
{
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);
if (((g_cpu_ir>>9)&7) == 1)
{
sprintf(g_dasm_str, "fsave %s", get_ea_mode_str_8(g_cpu_ir));
}
else
{
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", ".p"
};
char mnemonic[40];
uint32 w2, src, dst_reg;
LIMIT_CPU_TYPES(M68030_PLUS);
w2 = read_imm_16();
src = (w2 >> 10) & 0x7;
dst_reg = (w2 >> 7) & 0x7;
// special override for FMOVECR
if ((((w2 >> 13) & 0x7) == 2) && (((w2>>10)&0x7) == 7))
{
sprintf(g_dasm_str, "fmovecr #$%0x, fp%d", (w2&0x7f), dst_reg);
return;
}
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:
{
switch ((w2>>10)&7)
{
case 3: // packed decimal w/fixed k-factor
sprintf(g_dasm_str, "fmove%s FP%d, %s {#%d}", float_data_format[(w2>>10)&7], dst_reg, get_ea_mode_str_32(g_cpu_ir), sext_7bit_int(w2&0x7f));
break;
case 7: // packed decimal w/dynamic k-factor (register)
sprintf(g_dasm_str, "fmove%s FP%d, %s {D%d}", float_data_format[(w2>>10)&7], dst_reg, get_ea_mode_str_32(g_cpu_ir), (w2>>4)&7);
break;
default:
sprintf(g_dasm_str, "fmove%s FP%d, %s", float_data_format[(w2>>10)&7], dst_reg, get_ea_mode_str_32(g_cpu_ir));
break;
}
break;
}
case 0x4: // ea to control
{
sprintf(g_dasm_str, "fmovem.l %s, ", get_ea_mode_str_32(g_cpu_ir));
if (w2 & 0x1000) strcat(g_dasm_str, "fpcr");
if (w2 & 0x0800) strcat(g_dasm_str, "/fpsr");
if (w2 & 0x0400) strcat(g_dasm_str, "/fpiar");
break;
}
case 0x5: // control to ea
{
strcpy(g_dasm_str, "fmovem.l ");
if (w2 & 0x1000) strcat(g_dasm_str, "fpcr");
if (w2 & 0x0800) strcat(g_dasm_str, "/fpsr");
if (w2 & 0x0400) strcat(g_dasm_str, "/fpiar");
strcat(g_dasm_str, ", ");
strcat(g_dasm_str, get_ea_mode_str_32(g_cpu_ir));
break;
}
case 0x6: // memory to FPU, list
{
char temp[32];
if ((w2>>11) & 1) // dynamic register list
{
sprintf(g_dasm_str, "fmovem.x %s, D%d", get_ea_mode_str_32(g_cpu_ir), (w2>>4)&7);
}
else // static register list
{
int i;
sprintf(g_dasm_str, "fmovem.x %s, ", get_ea_mode_str_32(g_cpu_ir));
for (i = 0; i < 8; i++)
{
if (w2 & (1<<i))
{
if ((w2>>12) & 1) // postincrement or control
{
sprintf(temp, "FP%d ", 7-i);
}
else // predecrement
{
sprintf(temp, "FP%d ", i);
}
strcat(g_dasm_str, temp);
}
}
}
break;
}
case 0x7: // FPU to memory, list
{
char temp[32];
if ((w2>>11) & 1) // dynamic register list
{
sprintf(g_dasm_str, "fmovem.x D%d, %s", (w2>>4)&7, get_ea_mode_str_32(g_cpu_ir));
}
else // static register list
{
int i;
sprintf(g_dasm_str, "fmovem.x ");
for (i = 0; i < 8; i++)
{
if (w2 & (1<<i))
{
if ((w2>>12) & 1) // postincrement or control
{
sprintf(temp, "FP%d ", 7-i);
}
else // predecrement
{
sprintf(temp, "FP%d ", i);
}
strcat(g_dasm_str, temp);
}
}
strcat(g_dasm_str, ", ");
strcat(g_dasm_str, get_ea_mode_str_32(g_cpu_ir));
}
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;
char* reg_name;
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<<i))
{
first = i;
run_length = 0;
while(i<7 && (data&(1<<(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<<(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<<i))
{
first = i;
run_length = 0;
while(i<7 && (data&(1<<(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<<(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<<i))
{
first = i;
run_length = 0;
while(i<7 && (data&(1<<(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<<(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<<i))
{
first = i;
run_length = 0;
while(i<7 && (data&(1<<(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<<(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));
}
// this is a 68040-specific form of PFLUSH
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());
}
// PFLUSH: 001xxx0xxxxxxxxx
// PLOAD: 001000x0000xxxxx
// PVALID1: 0010100000000000
// PVALID2: 0010110000000xxx
// PMOVE 1: 010xxxx000000000
// PMOVE 2: 011xxxx0000xxx00
// PMOVE 3: 011xxxx000000000
// PTEST: 100xxxxxxxxxxxxx
// PFLUSHR: 1010000000000000
static void d68851_p000(void)
{
char* str;
uint modes = read_imm_16();
// do this after fetching the second PMOVE word so we properly get the 3rd if necessary
str = get_ea_mode_str_32(g_cpu_ir);
if ((modes & 0xfde0) == 0x2000) // PLOAD
{
if (modes & 0x0200)
{
sprintf(g_dasm_str, "pload #%d, %s", (modes>>10)&7, str);
}
else
{
sprintf(g_dasm_str, "pload %s, #%d", str, (modes>>10)&7);
}
return;
}
if ((modes & 0xe200) == 0x2000) // PFLUSH
{
sprintf(g_dasm_str, "pflushr %x, %x, %s", modes & 0x1f, (modes>>5)&0xf, str);
return;
}
if (modes == 0xa000) // PFLUSHR
{
sprintf(g_dasm_str, "pflushr %s", str);
}
if (modes == 0x2800) // PVALID (FORMAT 1)
{
sprintf(g_dasm_str, "pvalid VAL, %s", str);
return;
}
if ((modes & 0xfff8) == 0x2c00) // PVALID (FORMAT 2)
{
sprintf(g_dasm_str, "pvalid A%d, %s", modes & 0xf, str);
return;
}
if ((modes & 0xe000) == 0x8000) // PTEST
{
sprintf(g_dasm_str, "ptest #%d, %s", modes & 0x1f, str);
return;
}
switch ((modes>>13) & 0x7)
{
case 0: // MC68030/040 form with FD bit
case 2: // MC68881 form, FD never set
if (modes & 0x0100)
{
if (modes & 0x0200)
{
sprintf(g_dasm_str, "pmovefd %s, %s", g_mmuregs[(modes>>10)&7], str);
}
else
{
sprintf(g_dasm_str, "pmovefd %s, %s", str, g_mmuregs[(modes>>10)&7]);
}
}
else
{
if (modes & 0x0200)
{
sprintf(g_dasm_str, "pmove %s, %s", g_mmuregs[(modes>>10)&7], str);
}
else
{
sprintf(g_dasm_str, "pmove %s, %s", str, g_mmuregs[(modes>>10)&7]);
}
}
break;
case 3: // MC68030 to/from status reg
if (modes & 0x0200)
{
sprintf(g_dasm_str, "pmove mmusr, %s", str);
}
else
{
sprintf(g_dasm_str, "pmove %s, mmusr", str);
}
break;
default:
sprintf(g_dasm_str, "pmove [unknown form] %s", str);
break;
}
}
static void d68851_pbcc16(void)
{
uint32 temp_pc = g_cpu_pc;
sprintf(g_dasm_str, "pb%s %x", g_mmucond[g_cpu_ir&0xf], temp_pc + make_int_16(read_imm_16()));
}
static void d68851_pbcc32(void)
{
uint32 temp_pc = g_cpu_pc;
sprintf(g_dasm_str, "pb%s %x", g_mmucond[g_cpu_ir&0xf], temp_pc + make_int_32(read_imm_32()));
}
static void d68851_pdbcc(void)
{
uint32 temp_pc = g_cpu_pc;
uint16 modes = read_imm_16();
sprintf(g_dasm_str, "pb%s %x", g_mmucond[modes&0xf], temp_pc + make_int_16(read_imm_16()));
}
// PScc: 0000000000xxxxxx
static void d68851_p001(void)
{
sprintf(g_dasm_str, "MMU 001 group");
}
/* ======================================================================== */
/* ======================= 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 const 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},
{d68851_p000 , 0xffc0, 0xf000, 0x000},
{d68851_pbcc16 , 0xffc0, 0xf080, 0x000},
{d68851_pbcc32 , 0xffc0, 0xf0c0, 0x000},
{d68851_pdbcc , 0xfff8, 0xf048, 0x000},
{d68851_p001 , 0xffc0, 0xf040, 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;
opcode_struct opcode_info[ARRAY_LENGTH(g_opcode_info)];
memcpy(opcode_info, g_opcode_info, sizeof(g_opcode_info));
qsort((void *)opcode_info, ARRAY_LENGTH(opcode_info)-1, sizeof(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 = 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_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_68EC030:
case M68K_CPU_TYPE_68030:
g_cpu_type = TYPE_68030;
g_address_mask = 0xffffffff;
break;
case M68K_CPU_TYPE_68040:
case M68K_CPU_TYPE_68EC040:
case M68K_CPU_TYPE_68LC040:
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:
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;
// Fallthrough
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;
// Fallthrough
case M68K_CPU_TYPE_68EC020:
case M68K_CPU_TYPE_68020:
case M68K_CPU_TYPE_68030:
case M68K_CPU_TYPE_68EC030:
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;
// Fallthrough
case M68K_CPU_TYPE_68040:
case M68K_CPU_TYPE_68EC040:
case M68K_CPU_TYPE_68LC040:
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] == d68040_pflush)
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;
}
// f028 2215 0008
/* ======================================================================== */
/* ============================== END OF FILE ============================= */
/* ======================================================================== */