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https://github.com/A2osX/A2osX.git
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58 lines
1.7 KiB
Plaintext
58 lines
1.7 KiB
Plaintext
NEW
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AUTO 3,1
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*--------------------------------------
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CCLK.START >SHORTMX 8 bit mode.
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lda statereg state register.
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sta savestate save for restore after tool call.
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and #$CF clear the read/write aux memory bits.
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sta statereg make it real
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clc set e = 0 to set native mode
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xce
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>LONGMX 16 bit mode.
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lda ##$0000 zero out result space.
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pha push 4 words for hex time result
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pha
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pha
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pha
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>IIGS ReadTimeHex
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>SHORTM back to 8 bit to get results from stack
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lda savestate restore state register
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sta statereg
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pla pull off seconds and ignore
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pla
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sta p8time minutes
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pla
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sta p8time+1 hours
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pla year
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.1 cmp #100 out of range?
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bcc .2 no, go ahead and store
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sbc #$64 else put back in range.
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bra .1 try again
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.2 sta p8date+1 year
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pla
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inc increment day for Prodos 8 format.
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sta p8date day
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pla month
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inc increment month for Prodos 8 format.
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asl shift month as it sits in between
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asl the year and day values.
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asl
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asl
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asl
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ora p8date put all but the top bit of month
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sta p8date value in the day byte.
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rol p8date+1 put hi bit of month in low bit of year
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pla pull of unused byte
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pla pull off day of week. stack now clean.
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sec go back to emulation mode
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xce to continue with Prodos 8
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rts
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savestate .HS 00 state of the state register
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*--------------------------------------
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CCLK.LEN .EQ *-CCLK.START
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MAN
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SAVE USR/SRC/PRODOS.FX/PRODOS.S.CCLK
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LOAD USR/SRC/PRODOS.FX/PRODOS.S
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ASM
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