46 lines
497 B
ArmAsm
46 lines
497 B
ArmAsm
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.export _cpeekchar
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.export _cpeekcharxy
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.import _gotoxy
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.include "cbm610/cbm610.inc"
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.segment "CODE"
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_cpeekcharxy:
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jsr _gotoxy ; Set cursor
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_cpeekchar:
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ldx IndReg
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ldy #$0F
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sty IndReg
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ldy CURS_X
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lda (CharPtr),y ; get char
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; convert to asc
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and #$7f
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; 0 - $1f +$40
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; $20 - $3f
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; $40 - $7e +$80
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cmp #$1f
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bcs @sk1
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;; clc
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adc #$40
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jmp @end
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@sk1:
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cmp #$40
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bcc @end
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clc
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adc #$80
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@end:
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stx IndReg
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ldx #0
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rts
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