mirror of
https://github.com/cc65/cc65.git
synced 2024-12-25 02:29:52 +00:00
115 lines
2.3 KiB
ArmAsm
115 lines
2.3 KiB
ArmAsm
|
;
|
||
|
|
; Oliver Schmidt, 14.08.2018
|
||
|
|
; Christian Groessler, 25.09.2018
|
||
|
|
;
|
||
|
|
; int __fastcall__ clock_gettime (clockid_t clk_id, struct timespec *tp);
|
||
|
|
;
|
||
|
|
|
||
|
|
.import pushax, steaxspidx, incsp1, incsp3, return0
|
||
|
|
.import __dos_type
|
||
|
|
.import sdxtry
|
||
|
|
|
||
|
|
.include "time.inc"
|
||
|
|
.include "zeropage.inc"
|
||
|
|
.include "errno.inc"
|
||
|
|
.include "atari.inc"
|
||
|
|
|
||
|
|
_clock_gettime:
|
||
|
|
jsr pushax
|
||
|
|
|
||
|
|
; clear tp
|
||
|
|
|
||
|
|
sta ptr1
|
||
|
|
stx ptr1+1
|
||
|
|
lda #$00
|
||
|
|
ldy #.sizeof(timespec)-1
|
||
|
|
: sta (ptr1),y
|
||
|
|
dey
|
||
|
|
bpl :-
|
||
|
|
|
||
|
|
; only supported on SpartaDOS-X >= 4.40
|
||
|
|
|
||
|
|
lda #SPARTADOS
|
||
|
|
cmp __dos_type
|
||
|
|
bne notsupp
|
||
|
|
lda SDX_VERSION
|
||
|
|
cmp #$44
|
||
|
|
bcc notsupp
|
||
|
|
|
||
|
|
; get date/time from system (SD-X call)
|
||
|
|
; see settime.s for reasons of using sdxtry
|
||
|
|
|
||
|
|
lda #0 ; init loop count (256)
|
||
|
|
sta sdxtry
|
||
|
|
|
||
|
|
try_get:lda #SDX_CLK_DEV ; CLK device
|
||
|
|
sta SDX_DEVICE
|
||
|
|
ldy #SDX_KD_GETTD ; GETTD function
|
||
|
|
jsr SDX_KERNEL ; do the call
|
||
|
|
bcc done
|
||
|
|
|
||
|
|
dec sdxtry
|
||
|
|
bne try_get
|
||
|
|
|
||
|
|
lda #EBUSY
|
||
|
|
bne errexit
|
||
|
|
|
||
|
|
; fill timespec
|
||
|
|
|
||
|
|
; date
|
||
|
|
done: lda SDX_DATE ; mday
|
||
|
|
sta TM + tm::tm_mday
|
||
|
|
ldx SDX_DATE+1 ; month
|
||
|
|
dex
|
||
|
|
stx TM + tm::tm_mon
|
||
|
|
lda SDX_DATE+2 ; year
|
||
|
|
cmp #79 ; 1979: the Atari 800 came out
|
||
|
|
bcs :+
|
||
|
|
adc #100 ; adjust century
|
||
|
|
: sta TM + tm::tm_year
|
||
|
|
|
||
|
|
; time
|
||
|
|
lda SDX_TIME
|
||
|
|
sta TM + tm::tm_hour
|
||
|
|
lda SDX_TIME+1
|
||
|
|
sta TM + tm::tm_min
|
||
|
|
lda SDX_TIME+2
|
||
|
|
sta TM + tm::tm_sec
|
||
|
|
|
||
|
|
; make time_t
|
||
|
|
|
||
|
|
lda #<TM
|
||
|
|
ldx #>TM
|
||
|
|
jsr _mktime
|
||
|
|
|
||
|
|
; store tv_sec into output tp struct
|
||
|
|
|
||
|
|
ldy #timespec::tv_sec
|
||
|
|
jsr steaxspidx
|
||
|
|
|
||
|
|
; cleanup stack
|
||
|
|
|
||
|
|
jsr incsp1
|
||
|
|
|
||
|
|
; return success
|
||
|
|
|
||
|
|
jmp return0
|
||
|
|
|
||
|
|
; load errno code
|
||
|
|
|
||
|
|
notsupp:lda #ENOSYS
|
||
|
|
|
||
|
|
; cleanup stack
|
||
|
|
|
||
|
|
errexit:jsr incsp3 ; Preserves A
|
||
|
|
|
||
|
|
; set __errno
|
||
|
|
|
||
|
|
jmp __directerrno
|
||
|
|
|
||
|
|
; -------
|
||
|
|
|
||
|
|
.bss
|
||
|
|
|
||
|
|
TM: .tag tm
|