2013-12-05 11:40:44 +00:00
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;*
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;* void cclearxy (unsigned char x, unsigned char y, unsigned char length);
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;* void cclear (unsigned char length);
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;*
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2017-02-01 19:46:04 +01:00
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.export _cclearxy, _cclear
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.import popa, _gotoxy, cputdirect
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.importzp tmp1
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2013-12-05 11:40:44 +00:00
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_cclearxy:
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2017-02-01 19:46:04 +01:00
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pha ; Save length
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jsr popa ; get Y
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jsr _gotoxy
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pla
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2013-12-05 11:40:44 +00:00
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_cclear:
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2017-02-01 19:46:04 +01:00
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cmp #0 ; Zero length?
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beq L2
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sta tmp1
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2013-12-05 11:40:44 +00:00
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2017-02-01 19:46:04 +01:00
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L1: lda #$20 ; Space
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jsr cputdirect
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dec tmp1
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bne L1
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L2: rts
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