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Setting the clock in the afternoon [message #12810]

Thu, 16 August 2012 03:19

rusure
Messages: 1030
Registered: March 2012

Karma:

Senior Member

;when i run the c128 program below, the cia clock is
;set to a time in the wee hours of the morning. i am
;trying to set the hiorder bit of the cia hour register
;to 1, for an afternoon start time. can this be done?

;for a movie of the a program run, please go to
; https://docs.google.com/open?id=0B80L9cEZ8Ynvb29tQmM1ckJMdE0
;the binary and source files are zipped and avalable here
; https://docs.google.com/open?id=0B80L9cEZ8YnvYXhFUUtHWjhDNWM
*=$1c01
;10 sys7181
..dby $0b1c,$0a00
..byt $9e,'7181',$00,$00,$00
ldy #3
intiaz lda inicia,y
sta $dc08,y
dey
bpl intiaz
lda #$93;clear / home
read01 ldy #$03;cia hours, minutes, seconds, tenths
bplus jsr $ffd2
lda $dc08,y
jsr $b8c2;rom hex byte printer
lda #$3a;delimit cia bytes with colons
dey
bpl bplus
lda #$13
ldx $91;continue until r/s is pressed
bmi read01
rts
inicia .dby $0045,$5992
..end

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[Message index]

		Setting the clock in the afternoon By: rusure on Thu, 16 August 2012 03:19
		Re: Setting the clock in the afternoon By: rusure on Thu, 16 August 2012 03:47
		Re: Setting the clock in the afternoon By: ceratophyllum on Fri, 24 August 2012 09:11
		Re: Setting the clock in the afternoon By: Spiro Trikaliotis on Sun, 26 August 2012 04:00
		Re: Setting the clock in the afternoon By: rusure on Sun, 26 August 2012 23:53

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