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cc65/libsrc/cx16/getres.s

37 lines
744 B
ArmAsm

;
; 2019-12-26, Greg King
;
; int __fastcall__ clock_getres (clockid_t clk_id, struct timespec *res);
;
.include "time.inc"
.importzp ptr1
.import incsp1, return0
;----------------------------------------------------------------------------
.proc _clock_getres
sta ptr1
stx ptr1+1
ldy #.sizeof(timespec) - 1
@L1: lda time,y
sta (ptr1),y
dey
bpl @L1
jsr incsp1
jmp return0
.endproc
;----------------------------------------------------------------------------
; timespec struct with tv_nsec set to approximately 1/60 of a second
.rodata
time: .dword 0
.dword 17 * 1000 * 1000