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#pragma once
enum { // AsmAdressingMode
AM_UNKNOWN = 0,
AM_IMPLIED,
AM_IMMEDIATE,
AM_ABSOLUTE,
AM_INDIRECT,
AM_ZP,
AM_ZPIX,
AM_ZPIY,
AM_ABSOLUTEIX,
AM_ABSOLUTEIY,
AM_INDIRECTINDEXED,
AM_INDEXEDINDIRECT,
AM_RELATIVE
};
typedef struct INSTR
{
char name[4];
unsigned int type;
int cycles;
unsigned char ext;
unsigned char iclass;
} instructions;
/*
types : 1 - one-unsigned char instruction - eg.: nop
2 - two-unsigned char instruction eg.: lda #$20
3 - three-unsigned char instruction eg.: jmp $2000
4 - three-unsigned char indirect instruction eg.: jmp ($2000)
5 - two-unsigned char zero�slap eg.: lda $50
6 - two-unsigned char zero�slap X indexed eg.: lda $60,x
7 - two-unsigned char zero�slap Y indexed eg.: ldx $70,y
8 - three-unsigned char X indexed eg.: sta $8000,x
9 - three-unsigned char Y indexed eg.: sta $8000,y
10 - two-unsigned char zero�slap Y, indexed eg.: lda ($a0),Y
11 - two-unsigned char zero slap X, indexed eg.: lda ($b0,X)
12 - two-unsigned char relative jump eg.: beq $c000
ext : 0 - regular assembler instruction mnemonic
1 - extended assembler instruction mnemonic
2 - not an assembly instruction
class : 0 - special BRK,JAM,NOP : nothing affected
1 - affects PC
2 - affects A only
3 - affects X only
4 - affects Y only
5 - affects memory
9 - not dealt with
*/
const int typlen[13]={0,1,2,3,3,2,2,2,3,3,2,2,2};
/* 6510,7510 assembler instructions */
const instructions ins[256] =
{ {"BRK", AM_IMPLIED,7,0,0}, // 00 - BRK
{"ORA",11,6,0,3}, // 01 - ORA ($B0,X)
{"ABS", AM_IMPLIED,2,1,0}, //*02 - ABS
{"SLO",11,8,1,9}, //*03 - SLO ($B0,X)
{"NOP", 5,3,1,0}, //*04 - NOP $50
{"ORA", 5,3,0,2}, // 05 - ORA $50
{"ASL", 5,5,0,5}, // 06 - ASL $50
{"SLO", 5,5,1,9}, //*07 - SLO $50
{"PHP", AM_IMPLIED,3,0,9}, // 08
{"ORA", AM_IMMEDIATE,2,0,2}, // 09 - ORA #$20
{"ASL", AM_IMPLIED,2,0,2}, // 0A - ASL
{"ANC", AM_IMMEDIATE,2,1,9}, //*0B - ANC #$20
{"NOP", 3,4,1,0}, //*0C - NOP $3000
{"ORA", 3,4,0,2}, // 0D - ORA $3000
{"ASL", 3,6,0,5}, // 0E - ASL $3000
{"SLO", 3,6,1,9}, //*0F - SLO $3000
{"BPL",12,4,0,9}, // 10 - BPL $C000 / add +1 if branch on same page, +2 othervise
{"ORA",10,6,0,2}, // 11 - ORA ($A0),Y
{"ABS", AM_IMPLIED,2,1,1}, //*12 - ABS
{"SLO",10,9,1,9}, //*13 - SLO ($A0),Y
{"NOP", 6,4,1,0}, //*14 - NOP $60,X
{"ORA", 6,4,0,2}, // 15 - ORA $60,X
{"ASL", 6,6,0,5}, // 16 - ASL $60,X
{"SLO", 6,6,1,9}, //*17 - SLO $60,X
{"CLC", AM_IMPLIED,2,0,9}, // 18 - CLC
{"ORA", 9,5,0,2}, // 19 - ORA $9000,Y / Add +1 on page crossing
{"NOP", AM_IMPLIED,2,1,0}, //*1A - NOP
{"SLO", 9,8,1,9}, //*1B - SLO $9000,Y
{"NOP", 8,5,1,0}, //*1C - NOP $8000,X
{"ORA", 8,5,0,2}, // 1D - ORA $8000,X / Add +1 on page crossing
{"ASL", 8,7,0,5}, // 1E - ASL $8000,X
{"SLO", 8,8,1,9}, //*1F - SLO $8000,X
{"JSR", 3,6,0,9}, // 20 - JSR $3000
{"AND",11,6,0,9}, // 21 - AND ($B0,X)
{"ABS", AM_IMPLIED,2,1,1}, //*22 - ABS
{"RLA",11,8,1,9}, //*23 - RLA ($B0,X)
{"BIT", 5,3,0,7}, // 24 - BIT $50
{"AND", 5,3,0,2}, // 25 - AND $50
{"ROL", 5,5,0,5}, // 26 - ROL $50
{"RLA", 5,5,1,9}, //*27 - RLA $50
{"PLP", AM_IMPLIED,4,0,9}, // 28 - PLP
{"AND", AM_IMMEDIATE,2,0,2}, // 29 - AND #$20
{"ROL", AM_IMPLIED,2,0,2}, // 2A - ROL
{"ANC", AM_IMMEDIATE,2,1,9}, //*2B - ANC #$20
{"BIT", 3,4,0,7}, // 2C - BIT $3000
{"AND", 3,4,0,2}, // 2D - AND $3000
{"ROL", 3,6,0,5}, // 2E - ROL $3000
{"RLA", 3,6,1,9}, //*2F - RLA $3000
{"BMI",12,4,0,9}, // 30 - BPL $C000 / add +1 if branch on same page, +2 othervise
{"AND",10,6,0,2}, // 31 - AND ($A0),Y
{"ABS", AM_IMPLIED,2,1,1}, //*32 - ABS
{"RLA",10,9,1,9}, //*33 - RLA ($A0),Y
{"NOP", 6,4,1,0}, //*34 - NOP $60,X
{"AND", 6,4,0,9}, // 35 - AND $60,X
{"ROL", 6,6,0,5}, // 36 - ROL $60,X
{"RLA", 6,6,1,9}, //*37 - RLA $60,X
{"SEC", AM_IMPLIED,2,0,9}, // 38 - SEC
{"AND", 9,5,0,9}, // 39 - AND $9000,Y / add +1 if page boundary is crossed
{"NOP", AM_IMPLIED,2,1,0}, //*3A - NOP
{"RLA", 9,8,1,9}, //*3B - RLA $9000,Y
{"NOP", 8,5,1,0}, //*3C - NOP $8000,X
{"AND", 8,5,0,9}, // 3D - AND $8000,X / add +1 if page boundary is crossed
{"ROL", 8,7,0,5}, // 3E - ROL $8000,X
{"RLA", 8,8,1,9}, //*3F - RLA $8000,X
{"RTI", AM_IMPLIED,6,0,9}, // 40 - RTI
{"EOR",11,6,0,2}, // 41 - EOR ($B0,X)
{"ABS", AM_IMPLIED,2,1,1}, //*42 - ABS
{"SRE",11,8,1,9}, //*43 - SRE ($B0,X)
{"NOP", 5,3,1,0}, //*44 - NOP $50
{"EOR", 5,3,0,2}, // 45 - EOR $50
{"LSR", 5,5,0,5}, // 46 - LSR $50
{"SRE", 5,5,1,9}, //*47 - SRE $50
{"PHA", AM_IMPLIED,3,0,9}, // 48 - PHA
{"EOR", AM_IMMEDIATE,2,0,2}, // 49 - EOR #$20
{"LSR", AM_IMPLIED,2,0,2}, // 4A - LSR
{"ANL", AM_IMMEDIATE,2,1,9}, //*4B - ANL #$20
{"JMP", 3,3,0,9}, // 4C - JMP $3000
{"EOR", 3,4,0,9}, // 4D - EOR $3000
{"LSR", 3,6,0,5}, // 4E - LSR $3000
{"SRE", 3,6,1,9}, //*4F - SRE $3000
{"BVC",12,4,0,9}, // 50 - BVC $C000 / add +1 if branch on same page, +2 othervise
{"EOR",10,6,0,9}, // 51 - EOR ($A0),Y / add +1 if page boundary is crossed
{"ABS", AM_IMPLIED,2,1,1}, //*52 - ABS
{"SRE",10,9,1,9}, //*53 - SRE ($A0),Y
{"NOP", 6,4,1,0}, //*54 - NOP $60,X
{"EOR", 6,4,0,9}, // 55 - EOR $60,X
{"LSR", 6,6,0,5}, // 56 - LSR $60,X
{"SRE", 6,6,1,9}, //*57 - SRE $60,X
{"CLI", AM_IMPLIED,2,0,9}, // 58 - CLI
{"EOR", 9,5,0,2}, // 59 - EOR $9000,Y / add +1 if page boundary is crossed
{"NOP", AM_IMPLIED,2,1,0}, //*5A - NOP
{"SRE", 9,8,1,9}, //*5B - SRE $9000,Y
{"NOP", 8,5,1,0}, //*5C - NOP $8000,X
{"EOR", 8,5,0,2}, // 5D - EOR $8000,X / add +1 if page boundary is crossed
{"LSR", 8,7,0,5}, // 5E - LSR $8000,X
{"SRE", 8,8,1,9}, //*5F - SRE $8000,X
{"RTS", AM_IMPLIED,6,0,9}, // 60 - RTS
{"ADC",11,6,0,2}, // 61 - ADC ($B0,X)
{"ABS", AM_IMPLIED,2,1,1}, //*62 - ABS
{"RRA",11,8,1,9}, //*63 - RRA ($B0,X)
{"NOP", 5,3,1,0}, //*64 - NOP $50
{"ADC", 5,3,0,2}, // 65 - ADC $50
{"ROR", 5,5,0,5}, // 66 - ROR $50
{"RRA", 5,5,1,9}, //*67 - RRA $50
{"PLA", AM_IMPLIED,4,0,2}, // 68 - PLA
{"ADC", AM_IMMEDIATE,2,0,2}, // 69 - ADC #$20
{"ROR", AM_IMPLIED,2,0,2}, // 6A - ROR
{"ARR", 2,5,1,9}, // 6B - ARR $00
{"JMP", 4,5,0,9}, // 6C - JMP ($4000)
{"ADC", 3,4,0,2}, // 6D - ADC $3000
{"ROR", 3,6,0,5}, // 6E - ROR $3000
{"RRA", 3,6,1,9}, //*6F - RRA $3000
{"BVS",12,4,0,9}, // 70 - BVS $C000 / add +1 if branch on same page, +2 othervise
{"ADC",10,6,0,2}, // 71 - ADC ($A0),X / add +1 if page boundary is crossed
{"ABS", AM_IMPLIED,2,1,1}, //*72 - ABS
{"RRA",10,9,1,9}, //*73 - RRA ($A0),Y
{"NOP", 6,4,1,0}, //*74 - NOP $60,X
{"ADC", 6,4,0,2}, // 75 - ADC $60,X
{"ROR", 6,6,0,5}, // 76 - ROR $60,X
{"RRA", 6,6,1,9}, //*77 - RRA $60,X
{"SEI", AM_IMPLIED,2,0,9}, // 78 - SEI
{"ADC", 9,5,0,2}, // 79 - ADC $9000,Y / add +1 if page boundary is crossed
{"NOP", AM_IMPLIED,2,1,0}, //*7A - NOP
{"RRA", 9,8,1,9}, //*7B - RRA $9000,Y
{"NOP", 8,5,1,0}, //*7C - NOP $8000,X
{"ADC", 8,5,0,2}, // 7D - ADC $8000,X / add +1 if page boundary is crossed
{"ROR", 8,7,0,5}, // 7E - ROR $8000,X
{"RRA", 8,8,1,9}, //*7F - RRA $8000,X
{"NOP", AM_IMMEDIATE,2,1,0}, //*80 - NOP #$00
{"STA",11,6,0,5}, // 81 - STA ($B0,X)
{"NOP", AM_IMMEDIATE,2,1,0}, //*82 - NOP ($B0,X)
{"AXX",11,8,1,9}, //*83 - AXX ($B0,X)
{"STY", 5,3,0,5}, // 84 - STY $50
{"STA", 5,3,0,5}, // 85 - STA $50
{"STX", 5,3,0,5}, // 86 - STX $50
{"SAX", 5,5,1,9}, //*87 - AXR $50
{"DEY", AM_IMPLIED,2,0,4}, // 88 - DEY
{"NOP", AM_IMMEDIATE,2,1,0}, //*89 - NOP #$20
{"TXA", AM_IMPLIED,2,0,2}, // 8A - TXA
{"XAA", AM_IMMEDIATE,2,1,9}, //*8B - TAN #$20
{"STY", 3,4,0,5}, // 8C - STY $3000
{"STA", 3,4,0,5}, // 8D - STA $3000
{"STX", 3,4,0,5}, // 8E - STX $3000
{"SAX", 3,4,1,9}, //*8F - SAX $3000
{"BCC",12,4,0,9}, // 90 - BNE $C000 / add +1 if branch on same page, +2 othervise
{"STA",10,6,0,5}, // 91 - STA ($A0),Y
{"ABS", AM_IMPLIED,2,1,9}, //*92 - ABS
{"AHX",10,7,1,9}, //*93 - AXI ($A0),Y - hmm????????????????
{"STY", 6,4,0,5}, // 94 - STY $60,X
{"STA", 6,4,0,5}, // 95 - STA $60,X
{"STX", 7,4,0,5}, // 96 - STX $70,Y
{"AXY", 7,4,1,9}, //*97 - AXY $70,X
{"TYA", AM_IMPLIED,2,0,2}, // 98 - TYA
{"STA", 9,5,0,5}, // 99 - STA $9000,Y
{"TXS", AM_IMPLIED,2,0,9}, // 9A - TXS
{"TAS", 9,6,1,9}, //*9B - AXS $9000,Y
{"SHY", 9,4,1,9}, //*9C - AYI/SHY $0000,X
{"STA", 8,5,0,5}, // 9D - STA $8000,X
{"SHX", 9,4,1,9}, //*9E - SXI/SHX $0000,Y
{"AHX", 9,4,1,9}, //*9F - AXI/SHA $0000,Y
{"LDY", AM_IMMEDIATE,2,0,4}, // A0 - LDY #$20
{"LDA",11,6,0,2}, // A1 - LDA ($B0,X)
{"LDX", AM_IMMEDIATE,2,0,3}, // A2 - LDX #$20
{"LAX",11,6,1,6}, //*A3 - LAX ($B0,X)
{"LDY", 5,3,0,4}, // A4 - LDY $50
{"LDA", 5,3,0,2}, // A5 - LDA $50
{"LDX", 5,3,0,3}, // A6 - LDX $50
{"LAX", 5,3,1,6}, //*A7 - LAX $50
{"TAY", AM_IMPLIED,2,0,4}, // A8 - TAY
{"LDA", AM_IMMEDIATE,2,0,2}, // A9 - LDA #$20
{"TAX", AM_IMPLIED,2,0,3}, // AA - TAX
{"ANX", AM_IMMEDIATE,2,1,9}, //*AB - ANX #$20
{"LDY", 3,4,0,4}, // AC - LDY $3000
{"LDA", 3,4,0,2}, // AD - LDA $3000
{"LDX", 3,4,0,3}, // AE - LDX $3000
{"LAX", 3,4,1,6}, //*AF - LAX $3000
{"BCS",12,4,0,9}, // B0 - BCS $C000 / add +1 if branch on same page, +2 othervise
{"LDA",10,6,0,2}, // B1 - LDA ($A0),Y / add +1 if page boundary is crossed
{"ABS", AM_IMPLIED,2,1,1}, //*B2 - ABS
{"LAX",10,6,1,6}, //*B3 - LAX ($A0),Y
{"LDY", 6,4,0,4}, // B4 - LDY $60,X
{"LDA", 6,4,0,2}, // B5 - LDA $60,X
{"LDX", 7,4,0,3}, // B6 - LDX $70,Y
{"LAX", 7,4,1,6}, //*B7 - LAX $70,X
{"CLV", AM_IMPLIED,2,0,9}, // B8 - CLV
{"LDA", 9,5,0,2}, // B9 - LDA $9000,X / add +1 if page boundary is crossed
{"TSX", AM_IMPLIED,2,0,9}, // BA - TSX
{"TSA", 8,5,1,9}, //*BB - TSA $8000,X or Y???
{"LDY", 8,5,0,4}, // BC - LDY $8000,X / add +1 if page boundary is crossed
{"LDA", 8,5,0,2}, // BD - LDA $8000,X / add +1 if page boundary is crossed
{"LDX", 9,5,0,3}, // BE - LDX $9000,Y / add +1 if page boundary is crossed
{"LAX", 9,5,1,6}, //*BF - LAX $9000,Y
{"CPY", AM_IMMEDIATE,2,0,9}, // C0 - CPY #$20
{"CMP",11,6,0,7}, // C1 - CMP ($B0,X)
{"NOP",11,2,1,0}, //*C2 - NOP ($B0,X)
{"DCP",11,8,1,9}, //*C3 - DCP ($B0,X)
{"CPY", 5,3,0,9}, // C4 - CPY $50
{"CMP", 5,3,0,7}, // C5 - CMP $50
{"DEC", 5,5,0,5}, // C6 - DEC $50
{"DCP", 5,5,1,9}, //*C7 - DCP $50
{"INY", AM_IMPLIED,2,0,4}, // C8 - INY
{"CMP", AM_IMMEDIATE,2,0,9}, // C9 - CMP #$20
{"DEX", AM_IMPLIED,2,0,3}, // CA - DEX
{"XAS", AM_IMMEDIATE,2,1,9}, //*CB - XAS #$20
{"CPY", 3,4,0,9}, // CC - CPY $3000
{"CMP", 3,4,0,7}, // CD - CMP $3000
{"DEC", 3,6,0,5}, // CE - DEC $3000
{"DCP", 3,6,1,9}, //*CF - DCP $3000
{"BNE",12,4,0,9}, // D0 - BNE $C000 / add +1 if branch on same page, +2 othervise
{"CMP",10,6,0,7}, // D1 - CMP ($A0),Y / add +1 if page boundary is crossed
{"ABS", AM_IMPLIED,2,1,1}, //*D2 - ABS
{"DCP",10,9,1,9}, //*D3 - DCP ($A0),Y
{"NOP", 6,4,1,0}, //*D4 - NOP $60,X
{"CMP", 6,4,0,7}, // D5 - CMP $60,X
{"DEC", 6,6,0,5}, // D6 - DEC $60,X
{"DCP", 7,6,1,9}, //*D7 - DCP $70,X or Y??
{"CLD", AM_IMPLIED,2,0,9}, // D8 - CLD
{"CMP", 9,5,0,7}, // D9 - CMP $9000,Y / add +1 if page boundary is crossed
{"NOP", AM_IMPLIED,2,1,0}, //*DA - NOP
{"DCP", 9,8,0,9}, //*DB - DCP $9000,Y
{"NOP", 8,5,1,0}, //*DC - NOP $8000,X
{"CMP", 8,5,0,7}, // DD - CMP $8000,X / add +1 if page boundary is crossed
{"DEC", 8,7,0,5}, // DE - DEC $8000,X
{"DCP", 8,8,1,9}, //*DF - DCP $8000,X
{"CPX", AM_IMMEDIATE,2,0,9}, // E0 - CPX #$20
{"SBC",11,6,0,2}, // E1 - SBC ($B0,X)
{"NOP",11,2,1,0}, //*E2 - NOP ($B0,X)
{"ISC",11,8,1,9}, //*E3 - ISC ($B0,X)
{"CPX", 5,3,0,9}, // E4 - CPX $50
{"SBC", 5,3,0,2}, // E5 - SBC $50
{"INC", 5,5,0,5}, // E6 - INC $50
{"ISC", 5,5,1,9}, //*E7 - ISC $50
{"INX", AM_IMPLIED,2,0,3}, // E8 - INX
{"SBC", AM_IMMEDIATE,2,0,2}, // E9 - SBC #$20
{"NOP", AM_IMPLIED,2,0,0}, // EA - NOP
{"SBC", AM_IMMEDIATE,2,1,2}, //*EB - SBC #$20
{"CPX", 3,4,0,9}, // EC - CPX $3000
{"SBC", 3,4,0,2}, // ED - SBC $3000
{"INC", 3,6,0,5}, // EE - INC $3000
{"ISC", 3,6,1,9}, //*EF - ISC $3000
{"BEQ",12,4,0,9}, // F0 - BEQ $C000 / add +1 if branch on same page, +2 othervise
{"SBC",10,6,0,2}, // F1 - SBC ($A0),Y
{"ABS", AM_IMPLIED,2,1,1}, //*F2 - ABS
{"ISC",10,9,1,9}, //*F3 - ISC ($A0),Y
{"NOP", 6,4,1,0}, //*F4 - NOP $60,X
{"SBC", 6,5,0,2}, // F5 - SBC $60,X / add +1 if page boundary is crossed
{"INC", 6,6,0,5}, // F6 - INC $60,X
{"ISC", 6,6,1,9}, //*F7 - ISC $60,X
{"SED", AM_IMPLIED,2,0,9}, // F8 - SED
{"SBC", 9,5,0,2}, // F9 - SBC $9000,Y / +1 on boundary crossing
{"NOP", AM_IMPLIED,2,1,0}, //*FA - NOP
{"ISC", 9,8,1,9}, //*FB - ISC $9000,Y
{"NOP", 8,5,1,0}, //*FC - NOP $8000,X
{"SBC", 8,5,0,2}, // FD - SBC $8000,X / add +1 if page boundary is crossed
{"INC", 8,7,0,5}, // FE - INC $8000,X
{"ISC", 8,8,1,9}, //*FF - ISC $8000,X
};