MAME debugger version 0.251 (unknown) Currently targeting apple2c (Apple //c) >go >wpset $D400,$C00,w Watchpoint 1 set >go Stopped at watchpoint 1 writing A0 to DFB7 (PC=0000DF5E) >history 0902: bne $0905 0905: ldy #$02 0907: jsr $1211 1211: sta ($80), y 1213: iny 1214: pha 1215: txa 1216: sta ($80), y 1218: pla 1219: rts 090A: lda $84 090C: ldx $85 090E: jmp $08dc 08DC: ldy #$03 08DE: jsr $0f2d 0F2D: lda ($80), y 0F2F: tax 0F30: dey 0F31: lda ($80), y 0F33: rts 08E1: cmp #$c8 08E3: txa 08E4: sbc #$00 08E6: bvc $08ea 08EA: asl a 08EB: lda #$00 08ED: ldx #$00 08EF: rol a 08F0: beq $08f5 08F2: jmp $08f8 08F8: ldy #$03 08FA: jsr $0f2d 0F2D: lda ($80), y 0F2F: tax 0F30: dey 0F31: lda ($80), y 0F33: rts 08FD: sta $84 08FF: stx $85 0901: inc a 0902: bne $0905 0905: ldy #$02 0907: jsr $1211 1211: sta ($80), y 1213: iny 1214: pha 1215: txa 1216: sta ($80), y 1218: pla 1219: rts 090A: lda $84 090C: ldx $85 090E: jmp $08dc 08DC: ldy #$03 08DE: jsr $0f2d 0F2D: lda ($80), y 0F2F: tax 0F30: dey 0F31: lda ($80), y 0F33: rts 08E1: cmp #$c8 08E3: txa 08E4: sbc #$00 08E6: bvc $08ea 08EA: asl a 08EB: lda #$00 08ED: ldx #$00 08EF: rol a 08F0: beq $08f5 08F2: jmp $08f8 08F8: ldy #$03 08FA: jsr $0f2d 0F2D: lda ($80), y 0F2F: tax C803: pha C804: pla C805: pla C806: pha C807: cld C808: and #$10 C80A: adc #$f0 C80C: txa C80D: tsx C80E: dex C80F: txs C810: pha C811: phy C812: ldx $c066 C815: ldy $c067 C818: lda RD80STORE C81B: and $c01c C81E: and #$80 C820: beq $c827 C827: bit RDRAMRD C82A: bpl $c831 C831: bit RDRAMWRT C834: bpl $c83b C83B: bcs $c850 C83D: pha C83E: jsr $c4d5 C4D5: lda #$0e C4D7: trb $077c C4DA: sec C4DB: lda RDVBL C4DE: bpl $c528 C4E0: sta $c079 C4E3: lda #$0c C4E5: bit $07fc C4E8: bne $c4ed C4EA: sta CLRAN1 C4ED: ora #$02 C4EF: bra $c50c C50C: sta $c078 C50F: bit $067c C512: bne $c516 C514: lda #$0c C516: bit RD63 C519: bpl $c51d C51B: eor #$04 C51D: and $07fc C520: tsb $077c C523: trb $067c C526: adc #$fe C528: lda RDCXROM C52B: ora RDC3ROM C52E: bpl $c59a C59A: rts C841: bcc $c882 C882: pla C883: bpl $c88c C88C: asl a C88D: ldy #$05 C88F: ldx $c989, y C892: dey C893: asl a C894: bcc $c899 C899: bne $c88f C89B: ply C89C: plx C89D: pla C89E: rti 0F2F: tax C803: pha C804: pla C805: pla C806: pha C807: cld C808: and #$10 C80A: adc #$f0 C80C: txa C80D: tsx C80E: dex C80F: txs C810: pha C811: phy C812: ldx $c066 C815: ldy $c067 C818: lda RD80STORE C81B: and $c01c C81E: and #$80 C820: beq $c827 C827: bit RDRAMRD C82A: bpl $c831 C831: bit RDRAMWRT C834: bpl $c83b C83B: bcs $c850 C83D: pha C83E: jsr $c4d5 C4D5: lda #$0e C4D7: trb $077c C4DA: sec C4DB: lda RDVBL C4DE: bpl $c528 C528: lda RDCXROM C52B: ora RDC3ROM C52E: bpl $c59a C59A: rts C841: bcc $c882 C843: jsr $c900 C900: ldx #$c2 C902: jsr $c908 C908: ldy $c885, x C90B: lda #$04 C90D: eor $bffa, y C910: and #$0c C912: beq $c8fe C914: lda $bff9, y C917: sta $0438, x C91A: bpl $c8fe C91C: cpx #$c2 C91E: bcs $c922 C922: bit $0538, x C925: bvs $c94d C927: bpl $c94b C94B: and #$bf C94D: asl a C94E: asl a C94F: and #$20 C951: beq $c988 C953: lda $bffa, y C956: eor #$01 C958: and #$03 C95A: bne $c988 C95C: txa C95D: eor $04ff C960: bne $c8fe C8FE: sec C8FF: rts C905: bcc $c8ff C907: dex C908: ldy $c885, x C90B: lda #$04 C90D: eor $bffa, y C910: and #$0c C912: beq $c8fe C914: lda $bff9, y C917: sta $0438, x C91A: bpl $c8fe C8FE: sec C8FF: rts C846: bcc $c882 C848: pla C849: clc C84A: bra $c850 C850: bit RDLCRAM C853: bpl $c861 C855: ora #$0c C857: bit RDLCBNK2 C85A: bpl $c85e C85C: eor #$06 C85E: sta ROMIN C861: bit RDALTZP C864: bpl $c873 C873: bcs $c89f C875: pha C876: lda #$c8 C878: pha C879: lda #$82 C87B: pha C87C: lda #$04 C87E: pha C87F: jmp ($03fe) BFEB: bit $c08b BFEE: bit $c08b BFF1: jmp $df3a DF3A: lda go Stopped at watchpoint 1 writing 00 to DFC3 (PC=0000DF65) Stopped at watchpoint 1 writing FF to DFC4 (PC=0000DF65) Stopped at watchpoint 1 writing 00 to DFC5 (PC=0000DF65) Stopped at watchpoint 1 writing FF to DFC6 (PC=0000DF65) Stopped at watchpoint 1 writing 00 to DFC7 (PC=0000DF65) Stopped at watchpoint 1 writing FF to DFC8 (PC=0000DF65)