mirror of
https://github.com/cc65/cc65.git
synced 2024-12-25 02:29:52 +00:00
29 lines
577 B
ArmAsm
29 lines
577 B
ArmAsm
;
|
|
; Jede, 2021-03-10
|
|
;
|
|
; clock_t clock (void);
|
|
;
|
|
|
|
.export _clock
|
|
.importzp sreg
|
|
|
|
.include "telestrat.inc"
|
|
|
|
.proc _clock
|
|
|
|
; Clear the timer high 16 bits
|
|
|
|
ldy #$00
|
|
sty sreg
|
|
sty sreg+1
|
|
|
|
; Read the timer
|
|
|
|
sei ; Disable interrupts
|
|
lda TIMEUD ; TIMED contains 1/10 of a second from clock. Telestrat main cardridge simulate a clock from VIA6522 timer
|
|
ldx TIMEUD+1
|
|
cli ; Reenable interrupts
|
|
|
|
rts
|
|
.endproc
|