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| @@ -0,0 +1,172 @@ | ||
| version major=2,minor=0 | ||
| info csym=0,file=2,lib=0,line=157,mod=1,scope=0,seg=10,span=0,sym=0,type=0 | ||
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| mod id=0,name="powong.o",file=0 | ||
| seg id=0,name="CODE",start=0x00812C,size=0x0000,addrsize=absolute,type=ro,oname="out\powong.nes",ooffs=316 | ||
| seg id=1,name="RODATA",start=0x00812C,size=0x0000,addrsize=absolute,type=ro,oname="out\powong.nes",ooffs=316 | ||
| seg id=2,name="BSS",start=0x006000,size=0x0000,addrsize=absolute,type=rw | ||
| seg id=3,name="DATA",start=0x006000,size=0x0000,addrsize=absolute,type=rw,oname="out\powong.nes",ooffs=316 | ||
| seg id=4,name="ZEROPAGE",start=0x000002,size=0x0000,addrsize=zeropage,type=rw | ||
| seg id=5,name="NULL",start=0x000000,size=0x0000,addrsize=absolute,type=rw | ||
| seg id=6,name="HEADER",start=0x000000,size=0x0010,addrsize=absolute,type=ro,oname="out\powong.nes",ooffs=0 | ||
| seg id=7,name="STARTUP",start=0x008000,size=0x012C,addrsize=absolute,type=ro,oname="out\powong.nes",ooffs=16 | ||
| seg id=8,name="VECTORS",start=0x00FFFA,size=0x0004,addrsize=absolute,type=rw,oname="out\powong.nes",ooffs=32778 | ||
| seg id=9,name="CHARS",start=0x000000,size=0x2000,addrsize=absolute,type=rw,oname="out\powong.nes",ooffs=32784 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,207 @@ | ||
| .segment "HEADER" | ||
| .byte "NES" | ||
| .byte $1a | ||
| .byte $02 | ||
| .byte $01 | ||
| .byte %00000000 | ||
| .byte $00 | ||
| .byte $00 | ||
| .byte $00 | ||
| .byte $00 | ||
| .byte $00, $00, $00, $00, $00 | ||
|
|
||
| .segment "ZEROPAGE" | ||
|
|
||
| .segment "STARTUP" | ||
|
|
||
| ;subroutines | ||
| VBlankWait: | ||
| bit $2002 | ||
| bpl VBlankWait | ||
| rts | ||
| ;movement | ||
| MoveFwd: | ||
| lda $0200, x | ||
| clc | ||
| adc #$01 | ||
| rts | ||
|
|
||
| MoveBkd: | ||
| lda $0200, x | ||
| sec | ||
| sbc #$01 | ||
| rts | ||
|
|
||
| Move: | ||
| and #$00000001 | ||
| beq :+ | ||
| jsr MoveFwd | ||
| jmp MoveDone | ||
| : | ||
| jsr MoveBkd | ||
| MoveDone: | ||
| sta $0200, x | ||
| rts | ||
|
|
||
| RESET: | ||
| sei | ||
| cld | ||
|
|
||
| ;stop apu | ||
| ldx #$40 | ||
| stx $4017 | ||
|
|
||
| ;init stack register | ||
| ldx #$ff | ||
| txs | ||
|
|
||
| ;set ppu registers to 0 | ||
| inx | ||
| stx $2000 | ||
| stx $2001 | ||
|
|
||
| stx $4010 | ||
|
|
||
| jsr VBlankWait | ||
|
|
||
| ;clear memory | ||
| txa | ||
| MEMCLR: | ||
| sta $0000, x | ||
| sta $0100, x | ||
| sta $0300, x | ||
| sta $0400, x | ||
| sta $0500, x | ||
| sta $0600, x | ||
| sta $0700, x | ||
| ;allocate sprite memory | ||
| lda #$ff | ||
| sta $0200, x | ||
| lda #$00 | ||
|
|
||
| inx | ||
| bne MEMCLR | ||
|
|
||
| jsr VBlankWait | ||
|
|
||
| lda #$02 | ||
| sta $4014 | ||
| nop | ||
|
|
||
| lda #$3f | ||
| sta $2006 | ||
| lda #$00 | ||
| sta $2006 | ||
|
|
||
| ldx #$00 | ||
| LoadPalette: | ||
| lda PaletteData, x | ||
| sta $2007 | ||
| inx | ||
| cpx #$20 | ||
| bne LoadPalette | ||
|
|
||
| ;load sprites to allocated sprite memory | ||
| ldx #$00 | ||
| LoadSprite: | ||
| lda OwOSprite, x | ||
| sta $0200, x | ||
| inx | ||
| cpx #$18 | ||
| bne LoadSprite | ||
|
|
||
| cli | ||
|
|
||
| lda #%10010000 | ||
| sta $2000 | ||
|
|
||
| lda #%00011110 | ||
| sta $2001 | ||
|
|
||
| ;declare variables | ||
| lda #$01 | ||
| ;vmovefwd .set 1 | ||
| sta $0000 | ||
| ;hmovefwd .set 1 | ||
| sta $0001 | ||
|
|
||
| Loop: | ||
| jmp Loop | ||
|
|
||
| NMI: | ||
| ldx #$00 | ||
| MoveLoop: | ||
| ;vertical | ||
| lda $0000 | ||
| jsr Move | ||
| inx | ||
| inx | ||
| inx | ||
| ;horizontal | ||
| lda $0001 | ||
| jsr Move | ||
| inx | ||
| cpx #$18 | ||
| bne MoveLoop | ||
|
|
||
| CheckWall: | ||
| ;jmp EndHorChk | ||
| ldx $0203 | ||
| cpx #$08 | ||
| beq :+ | ||
| cpx #$e8 | ||
| beq :+ | ||
| jmp EndHorChk | ||
| : | ||
| lda $0001 | ||
| cmp #$00 | ||
| bne :+ | ||
| lda #$01 | ||
| sta $0001 | ||
| jmp EndHorChk | ||
| : | ||
| lda #$00 | ||
| sta $0001 | ||
| EndHorChk: | ||
| ;jmp EndVertChk | ||
| ldx $0200 | ||
| cpx #$08 | ||
| beq :+ | ||
| cpx #$d4 | ||
| beq :+ | ||
| jmp EndVertChk | ||
| : | ||
| lda $0000 | ||
| cmp #$00 | ||
| bne :+ | ||
| lda #$01 | ||
| sta $0000 | ||
| jmp EndVertChk | ||
| : | ||
| lda #$00 | ||
| sta $0000 | ||
| EndVertChk: | ||
|
|
||
| ;update sprites | ||
| lda #$02 | ||
| sta $4014 | ||
| rti | ||
|
|
||
| PaletteData: | ||
| .byte $0f,$00,$00,$25,$0f,$00,$00,$25,$0f,$00,$00,$25,$0f,$00,$00,$25 | ||
| .byte $0f,$00,$00,$25,$0f,$00,$00,$25,$0f,$00,$00,$25,$0f,$00,$00,$25 | ||
|
|
||
| OwOSprite: | ||
| .byte $a0,$00,$00,$10 | ||
| .byte $a0,$01,$00,$18 | ||
| .byte $a0,$02,$00,$20 | ||
| .byte $a8,$03,$00,$10 | ||
| .byte $a8,$04,$00,$18 | ||
| .byte $a8,$05,$00,$20 | ||
|
|
||
| .segment "VECTORS" | ||
| .word NMI | ||
| .word RESET | ||
|
|
||
| .segment "CHARS" | ||
| .incbin "res/owo.chr" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| ca65 powong.s -o powong.o -t nes | ||
| ld65 powong.o -o out\powong.nes -t nes --dbgfile out\powong.dbg | ||
| start out\powong.nes |