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63 lines
1.3 KiB
Plaintext
63 lines
1.3 KiB
Plaintext
;license:MIT
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;(c) 2018 by 4am
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;
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!cpu 6502
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!to "build/FX/DHGR.TWOPASS.LR",plain
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*=$6000
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hgrlo = $0200 ; [$C0 bytes, main memory only]
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hgr1hi = $0300 ; [$C0 bytes, main memory only]
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!source "src/fx/macros.a"
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ldx #(end-start) ; copy code to zero page
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- lda start-1, x
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sta $FF, x
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dex
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bne -
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+BUILD_HGR_LOOKUP_TABLES_X_IS_ALREADY_0 hgrlo, hgr1hi
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jmp loop
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start
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!pseudopc 0 {
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loop ldy #$00
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inc <startx
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columnloop
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startx=*+1
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ldx #$FF
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rowloop
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lda hgrlo, x
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sta <src+1
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sta <dst+1
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lda hgr1hi, x
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sta <dst+2
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eor #$60
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sta <src+2
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clc
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!byte $A9
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- sec
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src lda $FDFD, y ; SMC
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dst sta $FDFD ,y ; SMC
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sta $C003
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sta $C005
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bcc -
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sta $C002
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sta $C004
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inx
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inx
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cpx #$C0
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bcc rowloop
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lda #$10
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jsr WaitForKeyWithTimeout
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bmi exit
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iny
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cpy #$28
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bne columnloop
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lda <startx
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beq loop
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exit rts
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!source "src/wait.a"
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}
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end
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