NEW AUTO 3,1 *-------------------------------------- * https://www.cise.ufl.edu/~cop4600/cgi-bin/lxr/http/source.cgi/lib/ansi/gmtime.c *-------------------------------------- SECSDAY .EQ 86400 60*60*24 CENT0 .EQ 19 YEAR0 .EQ 70 DAY0 .EQ 4 day 0 was a thursday *-------------------------------------- * ZPPtr3 *S.TIME * FORPNT str * TXTPTR format *-------------------------------------- TIMEX.StrFTime .1 jsr SHARED.TXTPTRgn beq .8 cmp #'%' beq .2 jsr SHARED.FORPNTpn bra .1 .2 ldx #K.StrFTime.Cnt-1 jsr SHARED.TXTPTRgn beq .8 .3 cmp K.StrFTime.Tbl,x beq .4 dex bpl .3 bra .1 .4 cpx #7 bcc .5 jsr K.StrFTime.AtX bra .1 .5 txa asl tax jsr .7 bra .1 .7 jmp (K.StrFTime.JMP,x) .8 lda #0 Terminate C string jsr SHARED.FORPNTpn clc rts *-------------------------------------- K.StrFTime.Tbl .AS "aAbBIpYydHSwmM" K.StrFTime.Cnt .EQ *-K.StrFTime.TBL K.StrFTime.OfsX .DA #S.Time.YEAR,#S.Time.DAY,#S.Time.HOUR,#S.Time.SECOND,#S.Time.WDAY,#S.Time.MONTH,#S.Time.MINUTE K.StrFTime.JMP .DA K.StrFTime.A .DA K.StrFTime.AA .DA K.StrFTime.B .DA K.StrFTime.BB .DA K.StrFTime.II .DA K.StrFTime.P .DA K.StrFTime.YY *-------------------------------------- K.StrFTime.A sec Short day of week, 3 chars... .HS 90 BCC K.StrFTime.AA clc full DoW lda #TIMEX.DAY ldx /TIMEX.DAY ldy #S.Time.WDAY bra K.StrFTime.STR K.StrFTime.B sec Short Month, 3 chars.... .HS 90 BCC K.StrFTime.BB clc full Month.... lda #TIMEX.MON ldx /TIMEX.MON ldy #S.Time.MONTH K.StrFTime.STR sta ZPPtr4 stx ZPPtr4+1 ldx #15 bcc .10 ldx #3 .10 jsr SHARED.P3gY get required S.Time field value tay beq .2 Illegal value, print ??? .1 lda (ZPPtr4) sec adc ZPPtr4 sta ZPPtr4 bcc .11 inc ZPPtr4+1 .11 dey bne .1 .2 * ldy #0 Y is already 0 .3 iny lda (ZPPtr4),y jsr SHARED.FORPNTpn tya cmp (ZPPtr4) beq .8 dex bne .3 .8 rts *-------------------------------------- K.StrFTime.II ldy #S.Time.HOUR jsr SHARED.P3gY cmp #12 bcc K.StrFTime.addDecA sbc #12 bra K.StrFTime.addDecA K.StrFTime.P ldy #S.Time.HOUR jsr SHARED.P3gY cmp #12 bcc .1 lda #'p' .HS 2C bit abs .1 lda #'a' jsr SHARED.FORPNTpn lda #'m' jmp SHARED.FORPNTpn t K.StrFTime.YY ldy #S.Time.CENTURY jsr K.StrFTime.addDecPtr3Y ldx #7 "y" K.StrFTime.AtX ldy K.StrFTime.OfsX-7,x *-------------------------------------- K.StrFTime.addDecPtr3Y jsr SHARED.P3gY K.StrFTime.addDecA ldx #2 ldy #'0' clc jsr MATH.A2STR10 lda FOUTBuf jsr SHARED.FORPNTpn lda FOUTBuf+1 jmp SHARED.FORPNTpn *-------------------------------------- TIMEX.DAY .PS "???" .PS "Monday" .PS "Tuesday" .PS "Wednesday" .PS "Thursday" .PS "Friday" .PS "Saturday" .PS "Sunday" *-------------------------------------- TIMEX.MON .PS "???" .PS "January" .PS "February" .PS "March" .PS "April" .PS "May" .PS "June" .PS "July" .PS "August" .PS "September" .PS "October" .PS "November" .PS "December" *-------------------------------------- TIMEX.PTime2Time.BAD lda #E.OOB sec rts TIMEX.PTime2Time ldy #3 jsr SHARED.TXTPTRgY and #%11100000 bne TIMEX.PTime2Time.BAD dey jsr SHARED.TXTPTRgY and #%11000000 bne TIMEX.PTime2Time.BAD dey ldy #1 jsr SHARED.TXTPTRgY Get Year lsr C is high bit of month ldy #S.Time.YEAR jsr SHARED.FORPNTpY set year sta ARG32+3 for computing Century/WDAY later ldy #0 jsr SHARED.TXTPTRgY Get Month/day tax save Day ror C is high bit of month lsr lsr lsr lsr beq TIMEX.PTime2Time.BAD cmp #13 bcs TIMEX.PTime2Time.BAD ldy #S.Time.MONTH jsr SHARED.FORPNTpY set month sta K.ComputeWDAY.1+1 txa get back day beq TIMEX.PTime2Time.BAD and #$1F cmp #32 bcs TIMEX.PTime2Time.BAD iny jsr SHARED.FORPNTpY set day dec adjust range 0.30 for MOD 7 sta ARG32.Sign For later... lda ARG32+3 get back year cmp #100 bcs TIMEX.PTime2Time.BAD cmp #69 if before 70 CC,if > 70, CS lda #0 rol get back C in bit 0 eor #1 toggle C adc #19 set date before 1970 -> 20xx ldy #0 jsr SHARED.FORPNTpY set Century sta ARG32+2 for computing WDAY later ldy #2 jsr SHARED.TXTPTRgY Get Min tax iny jsr SHARED.TXTPTRgY Get Hour ldy #S.Time.HOUR jsr SHARED.FORPNTpY set hour iny txa jsr SHARED.FORPNTpY set min iny lda #0 jsr SHARED.FORPNTpY set seconds (ProDOS does not provide it) *-------------------------------------- * 1/1/1970 was Thursday...if not leap, add one, if leap add 2 *-------------------------------------- K.ComputeWDAY lda #DAY0-1 Thursday : 4 (-1 for mod 7) pha lda #CENT0 Starts at 1970 sta ARG32 lda #YEAR0 sta ARG32+1 .1 ldy ARG32 lda ARG32+1 cpy ARG32+2 bne .2 cmp ARG32+3 beq K.ComputeWDAY.1 .2 jsr TIMEX.IsLeap CS = Leap pla adc #1 365 mod 7 cmp #7 bcc .3 sbc #7 MOD 7 .3 pha inc ARG32+1 lda ARG32+1 cmp #100 bne .1 stz ARG32+1 inc ARG32 bra .1 *-------------------------------------- K.ComputeWDAY.1 ldx #$ff SELF MODIFIED : month dex don't include actual month beq .71 .5 clc assume NO leap lda TIMEX.MDAY-1,x get day count in this month bne .6 february ? ldy ARG32+2 lda ARG32+3 jsr TIMEX.IsLeap CS = Leap .6 pla adc TIMEX.MDAY-1,x cmp #7 bcc .7 sbc #7 .7 pha dex bne .5 .71 pla clc adc ARG32.Sign get day in month (0..30) .8 cmp #7 MOD 7 bcc .80 sbc #7 bra .8 .80 inc adjust range 1..7 ldy #S.Time.WDAY * clc jmp SHARED.FORPNTpY *-------------------------------------- * TXTPTR ctime * FORPNT S.TIME *-------------------------------------- TIMEX.CTime2Time ldy #3 .1 jsr SHARED.TXTPTRgY sta ARG32,y ARG = ctime dey bpl .1 lda #SECSDAY ACC = SECSDAY sta ACC32 lda /SECSDAY sta ACC32+1 lda ^SECSDAY sta ACC32+2 stz ACC32+3 jsr M32.DIVMOD ARG32 = Days, TMP32 = remaining secs lda ARG32 WDAY computation : (ARG32 + DAY0) mod 7 clc adc #DAY0 pha lda ARG32+1 65535 days = 179 years adc /DAY0 eor #$ff tax pla .2 tay sec sbc #7 bcs .2 inx bne .2 tya ldy #S.Time.WDAY jsr SHARED.FORPNTpY ldy #CENT0 sty ZPPtr3 lda #YEAR0 sta ZPPtr3+1 K.CTime2Time.Y .1 ldy ZPPtr3 lda ZPPtr3+1 jsr TIMEX.IsLeap if Leap year CS rol Toggle Carry eor #1 lsr lda ARG32 sbc #365 pha lda ARG32+1 sbc /365 bcc .2 sta ARG32+1 pla sta ARG32 inc ZPPtr3+1 lda ZPPtr3+1 cmp #100 bne .1 stz ZPPtr3+1 inc ZPPtr3 bra .1 .2 pla lda ZPPtr3 ldy #S.Time.CENTURY jsr SHARED.FORPNTpY ldy #S.Time.YEAR lda ZPPtr3+1 jsr SHARED.FORPNTpY K.CTime2Time.MD ldx #1 X = January .1 clc txa eor #2 bne .2 >LDYA ZPPtr3 Current Year jsr TIMEX.IsLeap .2 lda TIMEX.MDAY-1,x adc #28 A = days of X sta .3+1 lda ARG32 ARG32/ARG32+1 = 0 .. 364 or 365 sec .3 sbc #$ff SELF MODIFIED pha lda ARG32+1 sbc #0 bcc .4 sta ARG32+1 pla sta ARG32 inx bra .1 .4 pla ldy #S.TIME.MONTH txa jsr SHARED.FORPNTpY iny S.TIME.DAY lda ARG32 inc jsr SHARED.FORPNTpY K.CTime2Time.HMS ldx #3 .1 lda TMP32,x sta ARG32,x dex bpl .1 ldy #S.TIME.SECOND jsr .2 dey #S.TIME.MINUTE jsr .2 dey #S.TIME.HOUR lda ARG32 jsr SHARED.FORPNTpY clc rts .2 phy lda #60 jsr M32.A2ACC32 jsr M32.DIVMOD ply lda TMP32 jsr SHARED.FORPNTpY rts *-------------------------------------- * In : * Y = Century * A = Year (0..99) * if (year mod 400 = 0) * or * if not (year mod 100 = 0) and (year mod 4 = 0) * Out : * CS = Leap * CC = Not Leap *-------------------------------------- TIMEX.IsLeap cmp #0 Year = 00 ? bne .1 no tya year = 00, get century in A and #$3 Century mod 4 = 0 ? beq .9 leap year (2000) .8 clc not leap (1900) rts .1 and #$3 mod 4 = 0 ? bne .8 .9 sec Leap rts *-------------------------------------- TIMEX.MDAY .DA #3,#0,#3,#2,#3,#2,#3,#3,#2,#3,#2,#3 *-------------------------------------- MAN SAVE usr/src/sys/kernel.s.timex LOAD usr/src/sys/kernel.s ASM