1
0
mirror of https://github.com/cc65/cc65.git synced 2024-10-30 12:28:25 +00:00
cc65/libsrc/geos/conio/_scrsize.s
cuz d0bee35728 Move constructor code into the INIT segment
git-svn-id: svn://svn.cc65.org/cc65/trunk@3405 b7a2c559-68d2-44c3-8de9-860c34a00d81
2005-02-26 09:28:46 +00:00

45 lines
638 B
ArmAsm

;
; Maciej 'YTM/Elysium' Witkowiak
;
; Screen size variables
;
; 6.3.2001, 17.4.2003
.include "../inc/geossym.inc"
.export xsize, ysize
.export screensize
.importzp cursor_r, cursor_c
.import _cursor
.constructor initscrsize
.segment "INIT"
initscrsize:
lda graphMode
bpl L1
lda #80 ; 80 columns (more or less)
.byte $2c
L1: lda #40 ; 40 columns (more or less)
sta xsize
lda #24 ; something like that for Y size
sta ysize
ldx #1
stx cursor_r
dex
stx cursor_c
txa
jmp _cursor ; home and update cursor
screensize:
ldx xsize
ldy ysize
rts
.bss
xsize: .res 1
ysize: .res 1