2016-12-02 16:09:24 +00:00
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PR#3
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2017-03-29 15:48:15 +00:00
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PREFIX /A2OSX.BUILD
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2016-12-02 16:09:24 +00:00
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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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2017-03-29 15:48:15 +00:00
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.TF /A2OSX.BUILD/LIB/LIBBLKDEV.O
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2016-12-02 16:09:24 +00:00
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*--------------------------------------
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2017-03-29 15:48:15 +00:00
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.INB /A2OSX.BUILD/INC/MACROS.I
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.INB /A2OSX.BUILD/INC/A2OSX.I
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.INB /A2OSX.BUILD/INC/PRODOS.I
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.INB /A2OSX.BUILD/INC/LIBBLKDEV.I
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2016-12-02 16:09:24 +00:00
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*--------------------------------------
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* NIBBLE track len = $1A00 (6656) bytes:
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*
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*--------------------------------------
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GAP1 .EQ 48
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GAP2 .EQ 6
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GAP3 .EQ 27
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*--------------------------------------
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Status.PrvDrvOff .EQ $80 Waiting old drive stop spining
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Status.DrvOn .EQ $81 Waiting target drive spin
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Status.seek .EQ $82 targetdrive seeking
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*--------------------------------------
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D2Ph0Off .EQ $C080
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D2Ph0On .EQ $C081
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D2Ph1Off .EQ $C082
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D2Ph1On .EQ $C083
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D2Ph2Off .EQ $C084
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D2Ph2On .EQ $C085
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D2Ph3Off .EQ $C086
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D2Ph3On .EQ $C087
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D2DrvOff .EQ $C088
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D2DrvOn .EQ $C089
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D2DrvSel1 .EQ $C08A
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D2DrvSel2 .EQ $C08B
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D2WShift .EQ $C08C W
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D2WLoad .EQ $C08D W
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D2RData .EQ $C08C R
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D2ReadProt .EQ $C08D R
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D2ReadMode .EQ $C08E R
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D2WriteMode .EQ $C08F W
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*--------------------------------------
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ZPPtr1 .EQ ZPLIB
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ZPPtr2 .EQ ZPLIB+2
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ZPPtr3 .EQ ZPLIB+4
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
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CS.START cld
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jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
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.DA #1 BIN Layout Version 1
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.DA 0
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.DA CS.END-CS.START
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.DA 0
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.DA 0
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.DA 0
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*--------------------------------------
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* Relocation Table
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*--------------------------------------
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.1 .DA LIB.LOAD
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.DA LIB.UNLOAD
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.DA GetProDOSCatSize
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.DA BuildProDOSCat
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.DA D2TrkR16s
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.DA D2TrkRNIB
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.DA D2TrkW16s
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.DA D2TrkWNIB
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L.TrkWriter .DA TrkWriter
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L.ProDOS.Boot .DA ProDOS.Boot
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.DA 0
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*/--------------------------------------
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2017-03-13 16:55:43 +00:00
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* #GetProDOSCatSize
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* Compute space needed for ProDOS Catalog
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* ##In :
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* PUSHW = DevSize (in 512b blocks)
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* ##Out :
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* X=BlockCount (max 22)
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* A=PageCount (max 44)
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2016-12-02 16:09:24 +00:00
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*\--------------------------------------
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GetProDOSCatSize
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>PULLAX A=DevSizeLo
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GetProDOSCatSizeAX
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clc for now, no partial bitmap blk to add
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tay DevSize is xxxxxxxx00000000 ?
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beq .1
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sec
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.1 txa Get DevSizeHI
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bit #$0f DevSize is xxxx000000000000 ?
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beq .2
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sec
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.2 php
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lsr
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lsr
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lsr
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lsr
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plp
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adc #6 at least, 1(ProDOS)+1(SOS)+4(VolDir)
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tax X = Total blocks needed for header (used)
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asl A = Total pages needed to build catalog.
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rts
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*/--------------------------------------
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2017-03-13 16:55:43 +00:00
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* #BuildProDOSCat
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* ##In :
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* PUSHW = DevSize (in 512b blocks)
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* PUSHW = VolName (PSTR)
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* PUSHW = DstBuf (Zero filled)
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* Blk0 : ProDOS.BootBlk
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* Blk1 : SOS.BootBlk
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* Blk2,3,4,5 : Volume Directory
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* Blk6.... : Volume Bitmap (4096/Blk)
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* max devSize = 65535 -> max 16 Bitmap Blk
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* absolute MAX DstBuf size=
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* 7 for Disk II(280blk),3.5(1600),3.5HD(2880)
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* 22 for 32mb Hardisk...
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2016-12-02 16:09:24 +00:00
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*\--------------------------------------
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BuildProDOSCat >PULLW ZPPtr1 DstBuf
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>PULLW ZPPtr2 VolName
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>PULLW VolDirHdr.TB
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ldx #3
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.10 lda DATELO,x
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sta VolDirHdr.CT,x
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dex
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bpl .10
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* Boot Code
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>LDYA L.ProDOS.Boot
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>STYA ZPPtr3
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ldy #0
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.1 lda (ZPPtr3),y
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sta (ZPPtr1),y
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iny
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bne .1
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inc ZPPtr3
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inc ZPPtr1
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.2 lda (ZPPtr3),y
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sta (ZPPtr1),y
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iny
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bne .2
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inc ZPPtr1 Blk 1
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inc ZPPtr1
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inc ZPPtr1 Blk 2
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* Directory Blocks
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lda (ZPPtr2) VolName Len
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and #$0f make sure 15 bytes max
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tay
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ora #$F0 Volume Directory Header
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sta VolDirHdr.Name
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.3 lda (ZPPtr2),y
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sta VolDirHdr.Name,y
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dey
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bpl .3
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ldy #VolDirHdr.size
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.4 lda VolDirHdr,y
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sta (ZPPtr1),y
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dey
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bpl .4
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inc ZPPtr1
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inc ZPPtr1 Blk 3
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lda #2
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sta (ZPPtr1)
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lda #4
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ldy #2
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sta (ZPPtr1),y
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inc ZPPtr1
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inc ZPPtr1 Blk 4
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lda #3
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sta (ZPPtr1)
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lda #5
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ldy #2
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sta (ZPPtr1),y
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inc ZPPtr1
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inc ZPPtr1 Blk 5
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lda #4
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sta (ZPPtr1)
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inc ZPPtr1
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inc ZPPtr1 Blk 6
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* BitMap Blocks : 0=Used 1=free
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>LDAX VolDirHdr.TB+1
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jsr GetProDOSCatSizeAX X=blk used for boot/dir/bitmap
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lda VolDirHdr.TB
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eor #$ff
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sta Count
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lda VolDirHdr.TB+1
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eor #$ff
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sta Count+1
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txa
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clc
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adc VolDirHdr.TB
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sta VolDirHdr.TB
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bcc .51
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inc Count+1
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.51 ldy #0
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.5 lda #%10000000
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.6 dex
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bmi .8
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asl
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bne .6
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iny
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bne .5
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.7 lda #%10000000
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.8 inc Count
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bne .81
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inc Count+1
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beq .88
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.81 pha
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eor (ZPPtr1),y
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sta (ZPPtr1),y
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pla
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asl
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bne .8
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iny
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bne .7
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inc ZPPtr1+1
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bra .7
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.88 rts
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*/--------------------------------------
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*\--------------------------------------
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D2TrkRNIB
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*/--------------------------------------
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*\--------------------------------------
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D2TrkR16s
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*/--------------------------------------
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* #TrkW16s
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* Write a track (16 sectors)
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* ##In:
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* PUSHW = Ptr to 16*256 buffer
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* PUSHB = TrackNum * 4 : 0->140+
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* PUSHB = DSSS0000
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* ##Out:
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* CC : success
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* CS : A = Error
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* A=0, currently starting/seeking...
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*\--------------------------------------
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D2TrkW16s
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clc
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rts
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*/--------------------------------------
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* #TrkWNIB
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* Write a track (NIBBLE)
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* ##In:
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* PUSHW = Ptr to NIBBLE buffer (0 ended)
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* PUSHB = TrackNum * 4 : 0->140+
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* PUSHB = DSSS0000
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* ##Out:
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* CC : success
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* CS : A = Error
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* A=0, currently starting/seeking...
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*\--------------------------------------
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D2TrkWNIB >PULLB DrvSlt
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>PULLB TrkNum
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>PULLW ZPPtr1
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lda Status Lib is busy....?
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beq .10
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lda DrvSlt
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cmp DrvSltInUse resume previous access ?
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.10 lda DEVNUM last drive accessed by ProDOS
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and #$F0 only DSSS
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pha
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jsr CheckDiskII was it a DISK II ?
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bcs .1 no, no need to check if spinning
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pla
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pha
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jsr DrvSpinCheck
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bcc .1 not spinning....continue
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pla
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sta D2DrvOff,x
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lda #Status.PrvDrvOff
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jmp SetStatusAndExit
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|
.1 pla
|
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|
cmp DrvSlt
|
|
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|
|
* beq
|
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|
lda DrvSlt
|
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jsr DrvTrkSelect
|
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bcs .9
|
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ldy #TrkWriter.Size
|
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.7 lda TrkWriter,y
|
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sta UsrBuf256,y
|
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dey
|
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bne .7
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|
jmp UsrBuf256
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clc
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|
.9 rts
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|
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|
|
*--------------------------------------
|
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|
SetStatusAndExit
|
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|
sta Status
|
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|
|
ldy DrvSlt
|
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sty DrvSltInUse
|
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|
clc
|
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rts
|
|
|
|
|
|
*--------------------------------------
|
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|
|
LIB.LOAD
|
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|
|
LIB.UNLOAD clc
|
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|
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|
rts
|
|
|
|
|
|
*--------------------------------------
|
|
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|
|
|
* A=DSSS0000
|
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|
|
* Y=target Track Number * 4
|
|
|
|
|
|
*--------------------------------------
|
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|
DrvTrkSelect jsr DrvSelect
|
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|
*--------------------------------------
|
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|
* A=DSSS0000
|
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|
*--------------------------------------
|
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|
|
CheckDiskII and #$70 only 0SSS
|
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lsr
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|
lsr
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|
lsr
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|
|
ora #$C0 make Cn
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sta .2+2
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|
ldx #3 4 bytes to check
|
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|
.1 ldy DiskII.OFS,x
|
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|
|
.2 lda $C000,y Self Modified
|
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|
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|
|
cmp DiskII.SIG,x
|
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|
bne .9
|
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|
dex
|
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|
bpl .1
|
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|
clc all bytes match, Disk II
|
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|
rts
|
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|
.9 sec
|
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|
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|
rts
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
* A=DSSS0000
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
DrvSpinCheck jsr DrvSelect
|
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|
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|
|
|
|
|
ldy #0
|
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|
|
lda D2RData,x
|
|
|
|
|
|
|
|
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|
|
.1 cmp D2RData,x
|
|
|
|
|
|
bne .8 spinning
|
|
|
|
|
|
dey
|
|
|
|
|
|
bne .1
|
|
|
|
|
|
|
|
|
|
|
|
clc CC:not spinning
|
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
.8 sec
|
|
|
|
|
|
rts
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
* A=DSSS0000
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
DrvSelect pha
|
|
|
|
|
|
and #$70
|
|
|
|
|
|
tax
|
|
|
|
|
|
pla
|
|
|
|
|
|
asl
|
|
|
|
|
|
adc #D2DrvSel1
|
|
|
|
|
|
sta .1+1
|
|
|
|
|
|
|
|
|
|
|
|
.1 lda D2DrvSel1,x Drv 1/2 select
|
|
|
|
|
|
|
|
|
|
|
|
lda D2ReadMode,x Make sure readmode
|
|
|
|
|
|
rts
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
CS.END
|
|
|
|
|
|
DiskII.OFS .HS 010305FF
|
|
|
|
|
|
DiskII.SIG .HS 20000300
|
|
|
|
|
|
|
|
|
|
|
|
DrvSlt .BS 1
|
|
|
|
|
|
TrkNum .BS 1
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
Status .BS 1
|
|
|
|
|
|
DrvSltInUse .BS 1
|
|
|
|
|
|
Count .BS 2
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
* TrkWriter
|
|
|
|
|
|
* X = Slot Cn
|
|
|
|
|
|
* ZPPtr1 = Ptr To NibbleBuf
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
TrkWriter .PH $200
|
|
|
|
|
|
|
|
|
|
|
|
TrkWriter.Start lda D2ReadMode,x
|
|
|
|
|
|
lda D2ReadProt,x
|
|
|
|
|
|
bmi .9 Write protected
|
|
|
|
|
|
|
|
|
|
|
|
php
|
|
|
|
|
|
sei
|
|
|
|
|
|
|
|
|
|
|
|
ldy #0
|
|
|
|
|
|
|
|
|
|
|
|
.1 lda (ZPPtr1),y (5) as NibbleBuf is page alligned, no page crossing
|
|
|
|
|
|
beq .8 (2)(3 if Z) END OF TRACK
|
|
|
|
|
|
|
|
|
|
|
|
* nobody will never try to write 00000000, right?
|
|
|
|
|
|
|
|
|
|
|
|
cmp #$80 (2) if CC, it is a sync byte
|
|
|
|
|
|
|
|
|
|
|
|
ora #$80 (2) make sure Bit7 high
|
|
|
|
|
|
|
|
|
|
|
|
sta D2WriteMode,x (5)
|
|
|
|
|
|
ora D2WShift,x (4) keep C unmodified
|
|
|
|
|
|
|
|
|
|
|
|
iny (2)
|
|
|
|
|
|
bne .2 (2)(3 if nz)
|
|
|
|
|
|
|
|
|
|
|
|
inc ZPPtr1+1 (5)
|
|
|
|
|
|
|
|
|
|
|
|
bcs .1 (2)(3 if cs) regular 32us byte
|
|
|
|
|
|
|
|
|
|
|
|
* 32us Byte,next page : 5+2 (beq failed) +2+2+5+4+2+2 (bne failed) + 5 + 3 (bcs succeeded) = 32
|
|
|
|
|
|
|
|
|
|
|
|
nop (2) Sync 40us byte : add 8 cycles
|
|
|
|
|
|
nop (2)
|
|
|
|
|
|
nop (2)
|
|
|
|
|
|
bra .1 (3)
|
|
|
|
|
|
|
|
|
|
|
|
* 40us Byte,next page : 5+2 (beq failed) +2+2+5+4+2+2 (bne failed) + 5 + 2 (bcs failed) +2+2+2+3 = 40
|
|
|
|
|
|
|
|
|
|
|
|
.2 nop (2)
|
|
|
|
|
|
nop (2)
|
|
|
|
|
|
|
|
|
|
|
|
bcs .1 (2)(3 if cs) regular 32us byte
|
|
|
|
|
|
|
|
|
|
|
|
* 32us Byte,same page : 5+2 (beq failed) +2+2+5+4+2+3 (bne succeeded) + 2 +2 + 3 (bcs succeeded) = 32
|
|
|
|
|
|
|
|
|
|
|
|
nop (2) Sync 40us byte : add 8 cycles
|
|
|
|
|
|
nop (2)
|
|
|
|
|
|
nop (2)
|
|
|
|
|
|
bra .1 (3)
|
|
|
|
|
|
|
|
|
|
|
|
* 40us Byte,same page : 5+2 (beq failed) +2+2+5+4+2+2 (bne failed) + 5 + 2 (bcs failed) +2+2+2+3 = 40
|
|
|
|
|
|
|
|
|
|
|
|
.8 pha (3) make sure 32us elapsed before switching to read mode (beq(3)+pha(3)=beq(2)+cmp(2)+ora(2))
|
|
|
|
|
|
lda D2ReadMode,x close write mode
|
|
|
|
|
|
lda D2RData,x
|
|
|
|
|
|
pla from pha (3)
|
|
|
|
|
|
plp
|
|
|
|
|
|
clc
|
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
.9 lda #$2B Write Protected
|
|
|
|
|
|
sec
|
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
TrkWriter.Size .EQ *-TrkWriter.Start
|
|
|
|
|
|
.EP
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
ProDOS.Boot .BS 512
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
VolDirHdr .DA 0 pointer to previous block
|
|
|
|
|
|
.DA 3 pointer to next block
|
|
|
|
|
|
VolDirHdr.Name .BS 16
|
|
|
|
|
|
.HS 0000000000000000
|
|
|
|
|
|
VolDirHdr.CT .BS 4 Creation time
|
|
|
|
|
|
.HS 0100C3270D version/min version/access/EL/EPB
|
|
|
|
|
|
.DA 0 File Count
|
|
|
|
|
|
.DA 6 bitmap pointer (Block 2..5 are Volume directory)
|
|
|
|
|
|
VolDirHdr.TB .BS 2 Total Blocks
|
|
|
|
|
|
VolDirHdr.size .EQ *-VolDirHdr
|
|
|
|
|
|
*--------------------------------------
|
|
|
|
|
|
MAN
|
2017-03-30 06:31:12 +00:00
|
|
|
|
SAVE /A2OSX.SRC/LIB/LIBBLKDEV.S
|
2016-12-02 16:09:24 +00:00
|
|
|
|
ASM
|
