144 lines
1.9 KiB
ArmAsm
144 lines
1.9 KiB
ArmAsm
; wires -- Apple II Hires
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; D0+ used by HGR routines
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HGR_COLOR = $E4
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HGR_PAGE = $E6
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D = $F9
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XX = $FA
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YY = $FB
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R = $FC
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CX = $FD
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CY = $FE
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FRAME = $FF
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; soft-switches
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; ROM routines
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HGR2 = $F3D8 ; set hires page2 and clear $4000-$5fff
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HGR = $F3E2 ; set hires page1 and clear $2000-$3fff
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HPLOT0 = $F457 ; plot at (Y,X), (A)
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HCOLOR1 = $F6F0 ; set HGR_COLOR to value in X
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COLORTBL = $F6F6
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PLOT = $F800 ; PLOT AT Y,A (A colors output, Y preserved)
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NEXTCOL = $F85F ; COLOR=COLOR+3
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SETCOL = $F864 ; COLOR=A
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SETGR = $FB40 ; set graphics and clear LO-RES screen
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BELL2 = $FBE4
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WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us
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wires:
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jsr HGR2
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ol:
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ldx #0
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line_loop:
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lda #$D5
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ll_smc1:
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sta $4000,X
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inx
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lda #$AA
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ll_smc2:
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sta $4000,X
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inx
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; cpx #40
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bne line_loop
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inc ll_smc1+2
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inc ll_smc2+2
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lda ll_smc2+2
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cmp #$60
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bne ol
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reset_loop:
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ldy #0
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outer_loop:
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ldx #0
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move_line_loop:
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ml_smc1:
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lda $4000,X
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eor pulse_even,Y
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ml_smc2:
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sta $4000,X
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inx
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ml_smc3:
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lda $4000,X
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eor pulse_odd,Y
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ml_smc4:
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sta $4000,X
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inx
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; cpx #40
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bne move_line_loop
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; lda #100
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; jsr WAIT
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inc ml_smc1+2
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inc ml_smc2+2
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inc ml_smc3+2
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inc ml_smc4+2
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lda ml_smc2+2
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cmp #$60
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bne move_line_loop
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lda #$40
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sta ml_smc1+2
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sta ml_smc2+2
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sta ml_smc3+2
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sta ml_smc4+2
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iny
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cpy #21
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bne outer_loop
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beq reset_loop
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game_over:
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jmp game_over
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; all
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pulse_even:
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.byte $03,$0C,$30,$40,$00,$00,$00
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.byte $01,$04,$10,$00,$00,$00,$00
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.byte $02,$08,$20,$00,$00,$00,$00
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pulse_odd:
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.byte $00,$00,$00,$01,$06,$18,$60
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.byte $00,$00,$00,$00,$02,$08,$20
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.byte $00,$00,$00,$01,$04,$10,$40
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; blue/orange
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;pulse_even:
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; .byte $03,$0C,$30,$40,$00,$00,$00
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;pulse_odd:
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; .byte $00,$00,$00,$01,$06,$18,$60
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; blue/black
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;pulse_even:
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; .byte $01,$04,$10,$00,$00,$00,$00
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;pulse_odd:
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; .byte $00,$00,$00,$00,$02,$08,$20
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; blue/white
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;pulse_even:
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; .byte $02,$08,$20,$00,$00,$00,$00
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;pulse_odd:
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; .byte $00,$00,$00,$01,$04,$10,$40
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