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cc65/libsrc/geos/conio/cursor.s

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;
; Maciej 'YTM/Elysium' Witkowiak
;
; 27.10.2001
; unsigned char cursor (unsigned char onoff);
.export _cursor
.include "../inc/jumptab.inc"
.include "../inc/geossym.inc"
.include "cursor.inc"
_cursor:
tay ; onoff into Y
ldx #0 ; High byte of result
ldx cursor_flag ; Get old value
sty cursor_flag ; Set new value
tya
beq L1
lda curHeight ; prepare cursor
jsr InitTextPrompt
lda cursor_x ; position it on screen
sta r4L
lda cursor_x+1
sta r4H
lda cursor_y
sec
sbc curHeight
sta r5L
lda #1
sta r3L
jsr PosSprite
L1: rts