mirror of
https://github.com/cc65/cc65.git
synced 2024-07-05 06:28:57 +00:00
35 lines
887 B
ArmAsm
35 lines
887 B
ArmAsm
;
|
|
; Maciej 'YTM/Elysium' Witkowiak
|
|
;
|
|
; 30.10.99, 15.8.2003
|
|
|
|
; void Sleep (int jiffies);
|
|
|
|
.importzp ptr1
|
|
.importzp tmp1
|
|
.export _Sleep
|
|
|
|
.include "jumptab.inc"
|
|
.include "geossym.inc"
|
|
|
|
_SleepExit:
|
|
jsr Sleep ; call Sleep
|
|
ldx tmp1
|
|
txs ; restore stack pointer
|
|
jmp (ptr1) ; when timeouts control will reach here
|
|
|
|
_Sleep:
|
|
sta r0L ; store data
|
|
stx r0H
|
|
pla
|
|
sta ptr1
|
|
pla
|
|
sta ptr1+1 ; preserve return address
|
|
inc ptr1
|
|
bne @L0
|
|
inc ptr1+1 ; fix return address
|
|
@L0: tsx
|
|
stx tmp1 ; preserve stack pointer
|
|
jsr _SleepExit ; call Sleep
|
|
jmp MainLoop ; immediate return here - go to idle loop
|