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cc65/libsrc/cbm/gotoxy.s

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;
; Ullrich von Bassewitz, 06.08.1998
;
; void gotoxy (unsigned char x, unsigned char y);
;
.export gotoxy, _gotoxy
.import popa, plot
.importzp CURS_X, CURS_Y
gotoxy:
jsr popa ; Get Y
_gotoxy:
sta CURS_Y ; Set Y
jsr popa ; Get X
sta CURS_X ; Set X
jmp plot ; Set the cursor position