File: clock.s

package info (click to toggle)
cc65 2.19-2
  • links: PTS
  • area: main
  • in suites: forky, sid, trixie
  • size: 20,268 kB
  • sloc: ansic: 117,151; asm: 66,339; pascal: 4,248; makefile: 1,009; perl: 607
file content (33 lines) | stat: -rw-r--r-- 577 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
;
; clock_t clock (void);
;

        .include        "gamate.inc"
        .include        "extzp.inc"

        .export         _clock
        .forceimport    ticktock
        .importzp       sreg
        .constructor    initclock


.proc   _clock

        lda     tickcount+3
        sta     sreg+1
        lda     tickcount+2
        sta     sreg
        ldx     tickcount+1
        lda     tickcount
        rts

.endproc

        .segment        "ONCE"
initclock:
        lda     #0
        ldx     #3
@lp:    sta     tickcount,x
        dex
        bpl     @lp
        rts