mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-20 03:31:42 +00:00
309 lines
5.3 KiB
Plaintext
309 lines
5.3 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF /A2OSX.BOOT/SYS/KM.NSC
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*--------------------------------------
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.INB INC/MACROS.I
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.INB INC/IO.I
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.INB INC/MONITOR.I
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.INB INC/PRODOS.I
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*--------------------------------------
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TmpPtr1 .EQ $0
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TmpPtr2 .EQ $2
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DS1216E.DATA .EQ $200
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*--------------------------------------
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NSC.Init >LDAXI NSC.MSG0
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jsr NSC.Print
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lda MACHID
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and #MACHID.CLK Clock already installed ?
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beq .1
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>LDAXI NSC.MSG1
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jsr NSC.Print
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rts
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.1 jsr NSC.Detect
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bcc .2
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>LDAXI NSC.MSG2
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jsr NSC.Print
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rts
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.2 jsr NSC.Install
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lda MACHID
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ora #MACHID.CLK
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sta MACHID
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>LDAXI NSC.MSG3
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jsr NSC.Print
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rts
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*--------------------------------------
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NSC.Detect php
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sei
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lda $CFFF
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pha
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sta $C300
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ldx #7
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.1 ldy #8
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.2 lda $C304
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lsr
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ror DS1216E.DATA1,x
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dey
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bne .2
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dex
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bpl .1
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lda $C304 Reset DS1216E comparison register with READ A2=1
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ldx #7 Read 8 bytes...
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.3 lda DS1216E.PATTERN,x
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phx
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ldx #8 ....of 8 bits
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.4 ldy #0
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lsr
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bcc .5
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iny
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.5 pha
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lda $C300,y Write Pattern bit in A0, with A2=0
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pla
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dex
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bne .4
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plx
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dex
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bpl .3
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ldx #7
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.6 ldy #8
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.7 lda $C304
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lsr
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ror DS1216E.DATA2,x
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dey
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bne .7
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dex
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bpl .6
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pla
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bmi .8
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sta $CFFF
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.8 plp
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ldx #7
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.81 lda DS1216E.DATA1,x
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cmp DS1216E.DATA2,x
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bne .9
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dex
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bpl .81
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sec
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rts
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.9 clc
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rts
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*--------------------------------------
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DS1216E.DATA1 .BS 8
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DS1216E.DATA2 .BS 8
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*--------------------------------------
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NSC.Install lda DATETIME+1
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sta TmpPtr1
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sec
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sbc #NSCDRV.B.START
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sta NSCDRV.OFFSET
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lda DATETIME+2
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sta TmpPtr1+1
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sbc /NSCDRV.B.START
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sta NSCDRV.OFFSET+1
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ldy #1
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ldx #0
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.1 lda NSCDRV.RELOC,x
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beq .2
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sta TmpPtr2
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inx
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lda NSCDRV.RELOC,x
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sta TmpPtr2+1
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lda (TmpPtr2)
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clc
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adc NSCDRV.OFFSET
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sta (TmpPtr2)
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lda (TmpPtr2),y
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adc NSCDRV.OFFSET+1
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sta (TmpPtr2),y
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inx
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bne .1
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.2 lda RRAMWRAMBNK1
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lda RRAMWRAMBNK1
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.3 ldy #0
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.7 lda NSCDRV.B.START,y
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sta (TmpPtr1),y
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iny
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cpy #NSCDRV.SIZE
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bne .7
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lda RROMBNK1
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lda #$4C
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sta DATETIME
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rts
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*--------------------------------------
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NSCDRV.OFFSET .BS 2
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NSCDRV.RELOC .DA NSCDRV.R1+1
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.DA 0
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.DA NSCDRV.R2+1
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.DA NSCDRV.R3+1
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.DA NSCDRV.R4+1
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.DA NSCDRV.R5+1
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.DA NSCDRV.R6+1
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.DA NSCDRV.R7+1
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.DA NSCDRV.R8+1
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.DA NSCDRV.R9+1
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.DA 0
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*--------------------------------------
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NSC.Print >STAX TmpPtr1
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ldy #0
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.1 lda (TmpPtr1),y
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beq .9
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ora #$80
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jsr COUT
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iny
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bne .1
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.9 jmp CROUT
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*--------------------------------------
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NSC.MSG0 >CSTRING "NSC ('No-Slot-Clock'/DS1216E) Driver For A2osX"
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NSC.MSG1 >CSTRING "A Clock Driver Is Already Installed."
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NSC.MSG2 >CSTRING "DS1216E Chip Not Detected."
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NSC.MSG3 >CSTRING "DS1216E Driver Successfully Installed."
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*--------------------------------------
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* Driver For DS1216E
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*--------------------------------------
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NSCDRV.B.START .EQ *
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NSCDRV php
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sei
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lda $CFFF Make cards release $C8xx space
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pha
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sta $C300
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lda $C304 Reset DS1216E comparison register with READ A2=1
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ldy #7 Read 8 bytes...
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NSCDRV.1
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NSCDRV.R1 lda DS1216E.PATTERN,y
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phy
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ldy #8 ....of 8 bits
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NSCDRV.2 ldx #0
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lsr
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bcc NSCDRV.21
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inx
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NSCDRV.21 bit $C300,x Write Pattern bit in A0, with A2=0
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dey
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bne NSCDRV.2
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ply
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dey
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bpl NSCDRV.1
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ldx #7
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NSCDRV.4 ldy #8
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NSCDRV.5 lda $C304 Read Byte...
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lsr
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NSCDRV.R2 ror DS1216E.DATA,x
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dey
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bne NSCDRV.5
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NSCDRV.R3 lda DS1216E.DATA,x
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pha
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lsr
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lsr
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lsr
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lsr
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tay
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pla
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and #$0F
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clc
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.HS 2C Bit Absolute to skip adc #$0A
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NSCDRV.6 adc #$0A
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dey
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bpl NSCDRV.6
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NSCDRV.R4 sta DS1216E.DATA,x
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dex
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bpl NSCDRV.4
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NSCDRV.R5 lda DS1216E.DATA+4 Get HH
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sta TIMELO+1
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NSCDRV.R6 lda DS1216E.DATA+5 Get mm
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sta TIMELO
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NSCDRV.R7 lda DS1216E.DATA+1 Get MM
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asl
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asl
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asl
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asl
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asl
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NSCDRV.R8 ora DS1216E.DATA+2 Get DD
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sta DATELO
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NSCDRV.R9 lda DS1216E.DATA Get YY
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rol
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sta DATELO+1
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pla
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bmi .99
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sta $CFFF
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.99 plp
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rts
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*--------------------------------------
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DS1216E.PATTERN .HS 5CA33AC55CA33AC5 Reverted 7->0
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*DS1216E.DATA .BS 8 Reverted YY MM DD Day HH mm SS CS
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*--------------------------------------
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NSCDRV.B.END .EQ *
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NSCDRV.SIZE .EQ NSCDRV.B.END-NSCDRV.B.START
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*--------------------------------------
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* CONTROL SECTION :
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*--------------------------------------
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.DO NSCDRV.SIZE>125
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ERROR:NSCDRV.SIZE too big
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.FIN
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*--------------------------------------
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MAN
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SAVE SYS/KM.NSC.S
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ASM
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