mirror of
https://github.com/cc65/cc65.git
synced 2024-12-27 00:29:31 +00:00
13482984ca
About all CONIO functions offering a <...>xy variant call popa _gotoxy By providing an internal gotoxy variant that starts with a popa all those CONIO function can be shortened by 3 bytes. As soon as program calls more than one CONIO function this means an overall code size reduction.
26 lines
534 B
ArmAsm
26 lines
534 B
ArmAsm
;
|
|
; Ullrich von Bassewitz, 06.08.1998
|
|
;
|
|
; void __fastcall__ gotoxy (unsigned char x, unsigned char y);
|
|
; void __fastcall__ gotox (unsigned char x);
|
|
;
|
|
|
|
.export gotoxy, _gotoxy, _gotox
|
|
.import popa, VTABZ
|
|
|
|
.include "apple2.inc"
|
|
|
|
gotoxy:
|
|
jsr popa ; Get Y
|
|
|
|
_gotoxy:
|
|
clc
|
|
adc WNDTOP
|
|
sta CV ; Store Y
|
|
jsr VTABZ
|
|
jsr popa ; Get X
|
|
|
|
_gotox:
|
|
sta CH ; Store X
|
|
rts
|