mirror of
https://github.com/callapple/LLUCE.git
synced 2024-06-06 03:29:32 +00:00
154 lines
3.2 KiB
ArmAsm
154 lines
3.2 KiB
ArmAsm
LST OFF
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TR
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TR ADR
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*-------------------------------
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* Z-RAM Ultra 2-3 - 12 hour
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*-------------------------------
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* Date Revised: 05/05/87
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*-------------------------------
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rel
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dsk CLOCKS/rel/ultra
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ultra ent
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org $A00
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*-------------------------------
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get_time equ $82
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mli equ $bf00
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date equ $bf90
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hex 00
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mode db 0
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jmp getdate
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jmp gettime
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jmp setdate
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* get the date in prodos gbbs format
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*-------------------------------
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getdate jsr mli ; mli call
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db get_time
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hex 0000 ; no pramater table
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ldx date
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lda date+1
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setdate rts
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* get the current time
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*-------------------------------
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gettime jsr rdtime
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lda mode
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bpl gtime1
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jsr convert
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gtime1 ldx #<timestr ; point to string
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lda #>timestr
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rts
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* read the current time from clock
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*-------------------------------
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rdtime lda #$C060
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holdclk lda #%00000101
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sta $C06D
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sta $C06D
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sta $C06D
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ldy #30
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loop lda $C06D
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and #%00000010
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beq readtime
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dey
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bne loop
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lda #%00000100
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sta $C06D
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sta $C06D
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sta $C06D
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bne holdclk
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readtime lda $C065 ; 10's of hour
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and #$F
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ora #'0'
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sta timestr
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lda $C064 ; 1's of hour
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and #$F
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ora #'0'
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sta timestr+1
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lda $C063 ; 10's of minute
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and #$F
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ora #'0'
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sta timestr+3
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lda $C062 ; 1's of minute
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and #$F
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ora #'0'
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sta timestr+4
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lda $C061 ; 10's of seconds
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and #$F
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ora #'0'
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sta timestr+6
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lda $C060 ; 1's of seconds
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and #$F
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ora #'0'
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sta timestr+7
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rts
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* convert time to 12hr format
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*----------------------------
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convert lda timestr ;convert to 12 hour
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ldx timestr+1
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and #$F
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tay
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txa
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and #$F
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dey
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bmi conv2
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clc
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adc #10
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dey
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bmi conv2
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adc #10
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conv2 cmp #12
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bne conv2a
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lda #24
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conv2a tay
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bne conv3
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lda #12
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conv3 ldx #'A'
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cmp #13
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bcc conv4
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sbc #12
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ldx #'P'
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conv4 ldy #'0'
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conv5 cmp #10
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bcc conv6
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sbc #10
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iny
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bne conv5
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conv6 ora #'0'
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sta timestr+1
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sty timestr
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stx timestr+9
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ldx #'M'
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stx timestr+10
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rts
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* variables
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*-------------------------------
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timestr asc '00:00:00 '00
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ds \
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