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224 lines
2.5 KiB
NASM
224 lines
2.5 KiB
NASM
* asm version of date utility
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* Phillip Vandry, May 1993
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mcopy date.mac
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keep date
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cline gequ 0
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main start
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phk
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plb
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sty cline
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stx cline+2
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stz uflag
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ldy #8
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lpp15 lda [cline],y
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and #$ff
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beq ok
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iny
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cmp #$20
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bne lpp15
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lpp20 lda [cline],y
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and #$ff
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beq ok
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iny
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cmp #$20
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beq lpp20
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cmp #$22
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beq lpp20
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cmp #'-'
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bne showusg
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lda [cline],y
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and #$ff
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cmp #'V'
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beq showvers
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cmp #'u'
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beq updateflag
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showusg ~ErrWriteCString #usage
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bra getoutPASS
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showvers ~WriteCString #versstr
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getoutPASS brl getout
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updateflag inc uflag
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ok anop
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lda #2 ; SIGINT
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jsr handle
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lda #15 ; SIGTERM
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jsr handle
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refresh pha
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pha
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pha
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pha
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~ReadTimeHex
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lda #year+3
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sta cline
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lda 4,s
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and #$ff
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clc
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adc #1900
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ldx #4
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jsr insert
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lda 1,s
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and #$ff
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ldx #2
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jsr insert
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jsr unpad
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pla
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xba
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and #$ff
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ldx #2
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jsr insert
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jsr unpad
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pla
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and #$ff
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ldx #2
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jsr insert
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jsr unpad
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lda 1,s
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and #$ff
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inc a
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ldx #2
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jsr insert
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phk
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plb
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pla
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jsr lookup
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lda months,x
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sta month
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lda months+1,x
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sta month+1
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pla
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jsr lookup
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lda weekdays-3,x
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sta weekday
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lda weekdays-2,x
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sta weekday+1
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~WriteString #ramit
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lda uflag
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beq exitall
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pea 0
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pea 1
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case on
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jsl sleep
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case off
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brl refresh
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exitall ~WriteString #justnewl
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getout QuitGS qtrec
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handler anop
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phb
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plx
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ply
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pla
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pla
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phy
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phx
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plb
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lda #1
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case on
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sta >ringring
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case off
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lda #0
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sta >uflag
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rtl
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handle anop
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pha
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pha
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pha
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pea handler|-16
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pea handler
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pea errno|-16
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pea errno
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ldx #$1603
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jsl $e10008
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pla
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pla
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rts
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lookup xba
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and #$ff
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pha
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asl a
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asl a
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sec
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sbc 1,s
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tax
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pla
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rts
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unpad ldx cline
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phk
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plb
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short m
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lda |0,x
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cmp #$20
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bne allok
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lda #'0'
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sta |0,x
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allok long m
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rts
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insert pha ; thenum
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pea 0
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plb
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phk
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lda cline
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dec a
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dec a
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dec a
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sta cline
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pha
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phx
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pea 0
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~Int2Dec *,*,*,*
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rts
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string anop
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qtrec dc i'2'
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dc a4'0'
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dc i'$4000'
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ramit dc i1'strend-strbeg'
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strbeg anop
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weekday dc c'xxx '
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month dc c'xxx '
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day dc c'xx '
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hour dc c'xx:'
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minute dc c'xx:'
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second dc c'xx '
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year dc c'xxxx'
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dc h'0d'
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strend anop
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justnewl dc h'01 0a'
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weekdays dc c'SunMonTueWedThuFriSat'
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months dc c'JanFebMarAprMayJunJulAugSepOctNovDec'
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versstr dc c'date utility, asm version 1.0'
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dc h'0d 0a'
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usage dc c'usage: date [-uV]',h'0d 0a'
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dc h'0'
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end
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errno data
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ds 2
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end
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uflag data
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ds 2
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end
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copy modsleep.asm
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dpstk data ~Direct
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kind $12
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ds 512
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end
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