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filter out all 3 byte single instructions

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Paul Gardner-Stephen committed 2019-04-24 10:17:00 +09:30
1 parent 744637c8f8
commit 4795660ffb
1 file changed
+67 -6
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src/similarity.c
+67 -6
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@@ -100,13 +100,74 @@ int main(int argc,char **argv)
// since that is the max length of a 6502 instruction
int single_instruction=0;
if (k==3) {
// Filter out certain common instructions
// Filter out all 3 byte instructions
switch(f1[i]) {
case 0x20: // JSR $xxxx
case 0x4c: // JMP $xxxx
case 0x6c: // JMP ($xxxx)
case 0x8d: // STA $xxxx
case 0xad: // LDA $xxxx
case 0x0C: // TSB $nnnn
case 0x0D: // ORA $nnnn
case 0x0E: // ASL $nnnn
case 0x19: // ORA $nnnn,Y
case 0x1C: // TRB $nnnn
case 0x1D: // ORA $nnnn,X
case 0x1E: // ASL $nnnn,X
case 0x20: // JSR $nnnn
case 0x22: // JSR ($nnnn)
case 0x23: // JSR ($nnnn,X)
case 0x2C: // BIT $nnnn
case 0x2D: // AND $nnnn
case 0x2E: // ROL $nnnn
case 0x39: // AND $nnnn,Y
case 0x3C: // BIT $nnnn,X
case 0x3D: // AND $nnnn,X
case 0x3E: // ROL $nnnn,X
case 0x4C: // JMP $nnnn
case 0x4D: // EOR $nnnn
case 0x4E: // LSR $nnnn
case 0x59: // EOR $nnnn,Y
case 0x5D: // EOR $nnnn,X
case 0x5E: // LSR $nnnn,X
case 0x6C: // JMP ($nnnn)
case 0x6D: // ADC $nnnn
case 0x6E: // ROR $nnnn
case 0x79: // ADC $nnnn,Y
case 0x7C: // JMP ($nnnn,X)
case 0x7D: // ADC $nnnn,X
case 0x7E: // ROR $nnnn,X
case 0x8B: // STY $nnnn,X
case 0x8C: // STY $nnnn
case 0x8D: // STA $nnnn
case 0x8E: // STX $nnnn
case 0x99: // STA $nnnn,Y
case 0x9B: // STX $nnnn,Y
case 0x9C: // STZ $nnnn
case 0x9D: // STA $nnnn,X
case 0x9E: // STZ $nnnn,X
case 0xAB: // LDZ $nnnn
case 0xAC: // LDY $nnnn
case 0xAD: // LDA $nnnn
case 0xAE: // LDX $nnnn
case 0xB9: // LDA $nnnn,Y
case 0xBB: // LDZ $nnnn,X
case 0xBC: // LDY $nnnn,X
case 0xBD: // LDA $nnnn,X
case 0xBE: // LDX $nnnn,Y
case 0xCB: // ASW $nnnn
case 0xCC: // CPY $nnnn
case 0xCD: // CMP $nnnn
case 0xCE: // DEC $nnnn
case 0xD9: // CMP $nnnn,Y
case 0xDC: // CPZ $nnnn
case 0xDD: // CMP $nnnn,X
case 0xDE: // DEC $nnnn,X
case 0xEB: // ROW $nnnn
case 0xEC: // CPX $nnnn
case 0xED: // SBC $nnnn
case 0xEE: // INC $nnnn
case 0xF4: // PHW #$nnnn
case 0xF9: // SBC $nnnn,Y
case 0xFC: // PHW $nnnn
case 0xFD: // SBC $nnnn,X
case 0xFE: // INC $nnnn,X
single_instruction=1;
break;
}