2019-04-02 19:11:11 +00:00
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; Ullrich von Bassewitz, 08.08.1998
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; void chlinexy (unsigned char x, unsigned char y, unsigned char length);
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; void chline (unsigned char length);
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;
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.export _chlinexy, _chline
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.import gotoxy, cputdirect
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.importzp tmp1
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.include "atari5200.inc"
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_chlinexy:
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pha ; Save the length
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jsr gotoxy ; Call this one, will pop params
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pla ; Restore the length
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_chline:
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cmp #0 ; Is the length zero?
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beq L9 ; Jump if done
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sta tmp1
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L1: lda #CH_HLINE ; Horizontal line, screen code
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jsr cputdirect ; Direct output
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dec tmp1
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bne L1
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L9: rts
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