Category : Assembly Language Source Code
Archive   : 68XASM.ZIP
Filename : OPCODES.H

/***************************** 68000 SIMULATOR ****************************

File Name: OPCODES.H
Version: 1.0

This file contains opcode values to decode 68000 instructions. It is
included in the file "run.c"

***************************************************************************/



extern int ORI(), ORI_TO_CCR(), ORI_TO_SR(), BIT_OP(), MOVEP(),
ANDI(), ANDI_TO_CCR(), ANDI_TO_SR(), SUBI(), ADDI(),
EORI(), EORI_TO_CCR(), EORI_TO_SR(), CMPI(), MOVEA(),
MOVE(), NEGX(), MOVE_FR_SR(), CHK(), LEA(), CLR(),
NEG(), MOVE_TO_CCR(), NOT(), MOVE_TO_SR(), NBCD(),
SWAP(), PEA(), EXT(), MOVEM(), TST(), TAS(),
ILLEGAL(), TRAP(), LINK(), UNLK(), MOVE_USP(),
RESET(), NOP(), STOP(), RTE(), RTS(), TRAPV(), RTR(),
JSR(), JMP(), ADDQ(), SCC(), DBCC(), SUBQ(), BCC(),
BRA(), BSR(), MOVEQ(), OR(), DIVU(), SBCD(), DIVS(),
SUB(), SUBA(), SUBX(), CMP(), CMPA(), EOR(), CMPM(),
AND(), MULU(), ABCD(), EXG(), MULS(), ADD(), ADDA(),
ADDX(), SHIFT_ROT();


int offsets[] =
{ 0, 15, 16, 18, 20, 53, 57, 60, 61, 65, 68, 68, 72, 79, 82, 84, 83 };


/*************************** W A R N I N G *************************/
/* */
/* IF YOU CHANGE THE BELOW STRUCTURE, BE SURE TO MAKE THE CORRESPNDING */
/* CHANGES IN THE "NAMES" ARRAY AT THE END OF THIS FILE */
/* */
/* */
/*************************** W A R N I N G *************************/

struct inst_rec {
int mask;
int val;
char name[13];
}
inst_arr[] =
{
{ 0x0000, 0x0a3c, "EORI_TO_CCR " },
{ 0x0000, 0x0a7c, "EORI_TO_SR " },
{ 0x0000, 0x003c, "ORI_TO_CCR " },
{ 0x0000, 0x007c, "ORI_TO_SR " },
{ 0x0000, 0x023c, "ANDI_TO_CCR " },
{ 0x0000, 0x027c, "ANDI_TO_SR " },
{ 0x0fc7, 0x0008, "MOVEP " },
{ 0x00ff, 0x0200, "ANDI " },
{ 0x00ff, 0x0000, "ORI " },
{ 0x00ff, 0x0400, "SUBI " },
{ 0x00ff, 0x0600, "ADDI " },
{ 0x00ff, 0x0800, "BIT_OP " },
{ 0x00ff, 0x0a00, "EORI " },
{ 0x00ff, 0x0c00, "CMPI " },
{ 0x0eff, 0x0100, "BIT_OP " },
{ 0x0fff, 0x1000, "MOVEB " },
{ 0x0e3f, 0x2040, "MOVEAL " },
{ 0x0fff, 0x2000, "MOVEL " },
{ 0x0e3f, 0x3040, "MOVEAW " },
{ 0x0fff, 0x3000, "MOVEW " },
{ 0x0000, 0x4afc, "ILLEGAL " },
{ 0x0000, 0x4e70, "RESET " },
{ 0x0000, 0x4e71, "NOP " },
{ 0x0000, 0x4e72, "STOP " },
{ 0x0000, 0x4e73, "RTE " },
{ 0x0000, 0x4e75, "RTS " },
{ 0x0000, 0x4e76, "TRAPV " },
{ 0x0000, 0x4e77, "RTR " },
{ 0x0007, 0x4e50, "LINK " },
{ 0x0007, 0x4e58, "UNLK " },
{ 0x0007, 0x4e60, "MOVE_TO_USP " },
{ 0x0007, 0x4e68, "MOVE_FR_USP " },
{ 0x0007, 0x4840, "SWAP " },
{ 0x0007, 0x4880, "EXT " },
{ 0x0007, 0x48c0, "EXT " },
{ 0x000f, 0x4e40, "TRAP " },
{ 0x003f, 0x40c0, "MOVE_FR_SR " },
{ 0x003f, 0x44c0, "MOVE_TO_CCR " },
{ 0x003f, 0x46c0, "MOVE_TO_SR " },
{ 0x003f, 0x4800, "NBCD " },
{ 0x003f, 0x4840, "PEA " },
{ 0x003f, 0x4ac0, "TAS " },
{ 0x003f, 0x4e80, "JSR " },
{ 0x003f, 0x4ec0, "JMP " },
{ 0x007f, 0x4c80, "MOVEM_TO_REG" },
{ 0x007f, 0x4880, "MOVEM_TO_EA " },
{ 0x00ff, 0x4200, "CLR " },
{ 0x00ff, 0x4000, "NEGX " },
{ 0x00ff, 0x4400, "NEG " },
{ 0x00ff, 0x4600, "NOT " },
{ 0x00ff, 0x4a00, "TST " },
{ 0x0e3f, 0x4180, "CHK " },
{ 0x0e3f, 0x41c0, "LEA " },
{ 0x0f07, 0x50c8, "DBCC " },
{ 0x0f3f, 0x50c0, "SCC " },
{ 0x0eff, 0x5100, "SUBQ " },
{ 0x0eff, 0x5000, "ADDQ " },
{ 0x00ff, 0x6000, "BRA " },
{ 0x00ff, 0x6100, "BSR " },
{ 0x0fff, 0x6000, "BCC " },
{ 0x0eff, 0x7000, "MOVEQ " },
{ 0x0e0f, 0x8100, "SBCD " },
{ 0x0e3f, 0x80c0, "DIVU " },
{ 0x0e3f, 0x81c0, "DIVS " },
{ 0x0fff, 0x8000, "OR " },
{ 0x0ecf, 0x9100, "SUBX " },
{ 0x0f3f, 0x90c0, "SUBA " },
{ 0x0fff, 0x9000, "SUB " },
{ 0x0f3f, 0xb0c0, "CMPA " },
{ 0x0ec7, 0xb108, "CMPM " },
{ 0x0eff, 0xb000, "CMP " },
{ 0x0eff, 0xb100, "EOR " },
{ 0x0e07, 0xc140, "EXG_D " },
{ 0x0e07, 0xc148, "EXG_A " },
{ 0x0e07, 0xc188, "EXG_D_AND_A " },
{ 0x0e0f, 0xc100, "ABCD " },
{ 0x0e3f, 0xc1c0, "MULS " },
{ 0x0e3f, 0xc0c0, "MULU " },
{ 0x0fff, 0xc000, "AND " },
{ 0x0ecf, 0xd100, "ADDX " },
{ 0x0f3f, 0xd0c0, "ADDA " },
{ 0x0fff, 0xd000, "ADD " },
{ 0x073f, 0xe0c0, "SHIFT_ROT " },
{ 0x0fff, 0xe000, "SHIFT_ROT " },
};


/*************************** W A R N I N G *************************/
/* */
/* IF YOU CHANGE THE BELOW ARRAY, BE SURE TO MAKE THE CORRESPNDING */
/* CHANGES IN THE "INST_REC" STRUCTURE ABOVE */
/* */
/* */
/*************************** W A R N I N G *************************/

int (*(names[]))() =
{
EORI_TO_CCR, EORI_TO_SR, ORI_TO_CCR, ORI_TO_SR, ANDI_TO_CCR,
ANDI_TO_SR, MOVEP, ANDI, ORI, SUBI, ADDI, BIT_OP, EORI, CMPI,
BIT_OP, MOVE, MOVEA, MOVE, MOVEA, MOVE, ILLEGAL, RESET, NOP,
STOP, RTE, RTS, TRAPV, RTR, LINK, UNLK, MOVE_USP, MOVE_USP,
SWAP, EXT, EXT, TRAP, MOVE_FR_SR, MOVE_TO_CCR, MOVE_TO_SR,
NBCD, PEA, TAS, JSR, JMP, MOVEM, MOVEM, CLR, NEGX, NEG, NOT,
TST, CHK, LEA, DBCC, SCC, SUBQ, ADDQ, BRA, BSR, BCC, MOVEQ,
SBCD, DIVU, DIVS, OR, SUBX, SUBA, SUB, CMPA, CMPM, CMP, EOR,
EXG, EXG, EXG, ABCD, MULS, MULU, AND, ADDX, ADDA, ADD, SHIFT_ROT,
SHIFT_ROT
};