mirror of
https://github.com/cc65/cc65.git
synced 2024-07-05 21:29:03 +00:00
47 lines
702 B
ArmAsm
47 lines
702 B
ArmAsm
;
|
|
; Maciej 'YTM/Elysium' Witkowiak
|
|
;
|
|
; 27.10.2001
|
|
; 06.03.2002
|
|
|
|
; void gotox (unsigned char x);
|
|
; void gotoy (unsigned char y);
|
|
; void gotoxy (unsigned char x, unsigned char y);
|
|
|
|
.export _gotox, _gotoy, _gotoxy, fixcursor
|
|
.import popa
|
|
.importzp cursor_x, cursor_y, cursor_c, cursor_r
|
|
|
|
.include "jumptab.inc"
|
|
|
|
_gotox:
|
|
sta cursor_c
|
|
jmp fixcursor
|
|
|
|
_gotoy:
|
|
sta cursor_r
|
|
inc cursor_r
|
|
jmp fixcursor
|
|
|
|
_gotoxy:
|
|
sta cursor_r
|
|
inc cursor_r
|
|
jsr popa
|
|
sta cursor_c
|
|
|
|
; convert 8x8 x/y coordinates to GEOS hires
|
|
fixcursor:
|
|
lda cursor_c
|
|
sta cursor_x
|
|
lda #0
|
|
sta cursor_x+1
|
|
lda cursor_r
|
|
sta cursor_y
|
|
ldx #cursor_x
|
|
ldy #3
|
|
jsr DShiftLeft
|
|
asl cursor_y
|
|
asl cursor_y
|
|
asl cursor_y
|
|
rts
|