mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 04:30:10 +00:00
72 lines
1.7 KiB
ArmAsm
72 lines
1.7 KiB
ArmAsm
;
|
|
; Oliver Schmidt, 15.08.2018
|
|
;
|
|
; int __fastcall__ clock_settime (clockid_t clk_id, const struct timespec *tp);
|
|
;
|
|
|
|
.import __dos_type
|
|
.import incsp1, return0
|
|
|
|
.include "time.inc"
|
|
.include "zeropage.inc"
|
|
.include "errno.inc"
|
|
.include "mli.inc"
|
|
|
|
_clock_settime:
|
|
|
|
; Cleanup stack
|
|
jsr incsp1 ; Preserves A
|
|
|
|
; Check for ProDOS 8
|
|
ldy __dos_type
|
|
beq enosys
|
|
|
|
; Check for realtme clock
|
|
tay ; Save A
|
|
lda MACHID
|
|
lsr a
|
|
bcs erange
|
|
tya ; Restore A
|
|
|
|
; Get tm
|
|
.assert timespec::tv_sec = 0, error
|
|
jsr _localtime
|
|
sta ptr1
|
|
stx ptr1+1
|
|
|
|
; Set date
|
|
ldy #tm::tm_mon
|
|
lda (ptr1),y
|
|
clc
|
|
adc #$01 ; Move [0..11] to [1..12]
|
|
asl
|
|
asl
|
|
asl
|
|
asl
|
|
asl
|
|
php ; Save month msb
|
|
ldy #tm::tm_mday
|
|
ora (ptr1),y
|
|
sta DATELO
|
|
ldy #tm::tm_year
|
|
lda (ptr1),y
|
|
cmp #100 ; Year since 1900 < 100?
|
|
bcc :+ ; Yes, leave alone
|
|
sbc #100 ; Move 20xx to 19xx
|
|
: plp ; Restore month msb
|
|
rol
|
|
sta DATELO+1
|
|
|
|
; Return success
|
|
jmp return0
|
|
|
|
; Load errno code
|
|
enosys: lda #ENOSYS
|
|
bne errno ; Always
|
|
|
|
; Load errno code
|
|
erange: lda #ERANGE
|
|
|
|
; Set __errno
|
|
errno: jmp ___directerrno
|