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57 lines
1.3 KiB
ArmAsm
57 lines
1.3 KiB
ArmAsm
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; 2019-12-27, Greg King
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; int __fastcall__ clock_gettime (clockid_t clk_id, struct timespec *tp);
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;
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.include "time.inc"
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.include "cx16.inc"
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.import pushax, pusheax, tosmul0ax, steaxspidx, incsp1, return0
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.import TM, load_jiffy
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.import CLOCK_GET_DATE_TIME
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;----------------------------------------------------------------------------
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.proc _clock_gettime
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jsr pushax
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jsr pushax
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jsr CLOCK_GET_DATE_TIME
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lda gREG::r0L
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sta TM + tm::tm_year
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lda gREG::r0H
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dec a
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sta TM + tm::tm_mon
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lda gREG::r1L
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sta TM + tm::tm_mday
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lda gREG::r1H
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sta TM + tm::tm_hour
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lda gREG::r2L
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sta TM + tm::tm_min
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lda gREG::r2H
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sta TM + tm::tm_sec
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lda #<TM
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ldx #>TM
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jsr _mktime
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ldy #timespec::tv_sec
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jsr steaxspidx ; Pops address pushed by 2. pushax
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jsr load_jiffy
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jsr pusheax
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lda gREG::r3L
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ldx #>$0000
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jsr tosmul0ax
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ldy #timespec::tv_nsec
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jsr steaxspidx ; Pops address pushed by 1. pushax
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jsr incsp1
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jmp return0
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.endproc
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