A2osX/SYS/KERNEL.S.DRV.txt

NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
*--------------------------------------
* DRV.DiskII
* X = IOCTL
* Y,A = PTR to S.IOCTL
*--------------------------------------
DRV.DiskII		cld
				cpx #IOCTL.FORMAT
				bcs .9
				>STYA pIOCTL
				jmp (.1,x)
.1				.DA DRV.DiskII.STATUS
				.DA DRV.BLK				READ
				.DA DRV.BLK				WRITE
.9				jmp A2osX.BadCall
*--------------------------------------
DRV.DiskII.STATUS
				>LDYAI DRV.DiskII.DIB
				jmp DRV.STATUS.YA
*--------------------------------------
DRV.DiskII.DIB	.DA #S.DIB.S.BLOCK+S.DIB.S.WRITE+S.DIB.S.READ
				.DA 280
				.DA #0
				>PSTR "Disk II 5.25"
				.BS 4
				.DA #S.DIB.T.DISKII
				.DA #0
				.DA KVER
*--------------------------------------
* DRV.RamDrive
* X = IOCTL
* Y,A = PTR to S.IOCTL
*--------------------------------------
DRV.RamDrive	cld
				cpx #IOCTL.CONTROL
				bcs .9
				>STYA pIOCTL
				jmp (.1,x)
.1				.DA DRV.RamDrive.STATUS
				.DA DRV.BLK				READ
				.DA DRV.BLK				WRITE
				.DA DRV.BLK				FORMAT
.9				jmp A2osX.BadCall
*--------------------------------------
DRV.RamDrive.STATUS
				jsr DRV.Blk
				bcs .9
				stx DRV.RamDrive.DIB+S.DIB.SIZE
				sty DRV.RamDrive.DIB+S.DIB.SIZE+1
				
				>LDYAI DRV.RamDrive.DIB
				jmp DRV.STATUS.YA

.9				rts
*--------------------------------------
DRV.RamDrive.DIB
				.DA #S.DIB.S.BLOCK+S.DIB.S.WRITE+S.DIB.S.READ
				.BS 3
				>PSTR "ProDOS /RAM Disk"
				.DA #S.DIB.T.RAM
				.DA #0
				.DA KVER
*--------------------------------------
* DRV.BlkDevice
* X = IOCTL
* Y,A = PTR to S.IOCTL
*--------------------------------------
DRV.BlkDevice	cld
				cpx #IOCTL.CONTROL
				bcs .9
				>STYA pIOCTL
				jmp (.1,x)
.1				.DA DRV.BlkDevice.STATUS
				.DA DRV.BLK				READ
				.DA DRV.BLK				WRITE
				.DA DRV.BLK				FORMAT
.9				jmp A2osX.BadCall
*--------------------------------------
DRV.BlkDevice.STATUS
				jsr DRV.Blk
				bcs .9
				stx DRV.BlkDevice.DIB+S.DIB.SIZE
				sty DRV.BlkDevice.DIB+S.DIB.SIZE+1

				>LDYAI DRV.BlkDevice.DIB
				jmp DRV.STATUS.YA
.9				rts
*--------------------------------------
DRV.BlkDevice.DIB
				.DA #S.DIB.S.BLOCK+S.DIB.S.WRITE+S.DIB.S.READ
				.BS 3
				>PSTR "ProDOS Block Dev"
				.DA #S.DIB.T.PRODOS
				.DA #0
				.DA KVER
*--------------------------------------
* IOCTL to BLK protocol converter
* in : pIOCTL (AUX)
*--------------------------------------
DRV.BLK			txa
				lsr
				sta DRV.BLK.PARAMS		CMD
				
				ldy #S.FD.DEV.DEVID	Drive 1, or 2
				lda (pFD),y
				dec						O or 1
				lsr						in Carry
				php
				
				ldy #S.FD.DEV.BUSID
				lda (pFD),y
				asl
				asl
				asl
				asl
				asl
				plp
				ror						DSSS0000

				sta DRV.BLK.PARAMS+1	UNITNUM
				
				ldx #3
				
				ldy #S.IOCTL.BUFPTR+3
				
.1				lda (pIOCTL),y			BUF,BLKNUM	
				sta DRV.BLK.PARAMS+2,x
				dey
				dex
				bpl .1
				
				ldy #S.FD.DEV.BUSPTR
				
				lda (pFD),y
				sta .3+1
				iny
				lda (pFD),y
				sta .3+2
				
				jsr GO.ProDOS
				
				ldx #5
				
.2				lda DRV.BLK.PARAMS,x
				sta $42,x
				dex
				bpl .2
				
.3				jsr $ffff				SELF MODIFIED

				jsr GO.A2osX
				rts
				
DRV.BLK.PARAMS	.BS 6				
*--------------------------------------
* Smartport	Driver
*--------------------------------------
DRV.SmartPort	cld
				>STYA DRV.SmartPort.Go.IOCTL

				txa
				lsr
				sta DRV.SmartPort.Go.Cmd
				tax
				
				lda DRV.SmartPort.Cnt,x
				sta DRV.SmartPort.Go.Cmd
				
				ldy #S.FD.DEV.BUSPTR
				lda (pFD),y
				sta .8+1
				iny
				lda (pFD),y
				sta .8+2

.8				jsr $ffff
DRV.SmartPort.Go.Cmd
				.BS 1
DRV.SmartPort.Go.IOCTL
				.BS 2
				rts

DRV.SmartPort.Cnt
				.HS 03030301030101010404
*--------------------------------------
* NULL DEVICE 
*  - OPEN,WRITE,CLOSE always succeed.
*  - READ returns EOF.
*--------------------------------------
DRV.NULL	 	cld
				>STYA pIOCTL
				jmp (.1,x)
*--------------------------------------
.1				.DA DRV.NULL.STATUS
				.DA A2osX.BADCALL		READBLOCK
				.DA A2osX.BADCALL		WRITEBLOCK
				.DA A2osX.BADCALL		FORMAT
				.DA A2osX.BADCALL		CONTROL
				.DA A2osX.BADCALL		INIT
				.DA DRV.NULL.OPEN
				.DA DRV.NULL.CLOSE
				.DA DRV.NULL.READ
				.DA DRV.NULL.WRITE
				.DA A2osX.BADCALL		IRQ
*--------------------------------------
DRV.NULL.STATUS	>LDYAI DRV.NULL.DIB
				jmp DRV.STATUS.YA
				
DRV.NULL.READ	ldx #C.EOF
				jmp DRV.READ.X
				
DRV.NULL.OPEN
DRV.NULL.WRITE
DRV.NULL.CLOSE	clc
				rts
*--------------------------------------
DRV.NULL.DIB	.DA #S.DIB.S.WRITE+S.DIB.S.READ+S.DIB.S.OPENED
				.DA #0,#0,#0
				>PSTR "NULL DEVICE"
				.BS 5
				.DA #S.DIB.T.CHAR
				.DA #0
				.DA KVER
*--------------------------------------
* SYS DEVICE
*--------------------------------------
DRV.SYS			cld
				>STYA pIOCTL
				jmp (.1,x)
.1				.DA DRV.SYS.STATUS
				.DA A2osX.BADCALL		READBLOCK
				.DA A2osX.BADCALL		WRITEBLOCK
				.DA A2osX.BADCALL		FORMAT
				.DA DRV.SYS.Control
				.DA A2osX.BADCALL		INIT
				.DA DRV.SYS.OPEN
				.DA DRV.SYS.CLOSE
				.DA DRV.SYS.Read
				.DA DRV.SYS.Write
				.DA A2osX.BADCALL		IRQ
*--------------------------------------
DRV.SYS.STATUS	>LDYAI DRV.SYS.DIB
				jmp DRV.STATUS.YA
*--------------------------------------
DRV.SYS.Open 	lda #DEVID.SYS
				sta A2osX.SCRNDEVS+1
				jsr DRV.SYS.FF
*--------------------------------------
DRV.SYS.Control	sta SETTEXT
				sta SETALTCHAR
				sta SET80DISP
				sta CLR80STORE
				sta SETPAGE2
				lda #2
				sta A2osX.ASCREEN
DRV.SYS.CLOSE				
				clc
				rts
*--------------------------------------
DRV.SYS.Read	lda A2osX.ASCREEN
				cmp #2					is SYS active?
				bne .9

				lda	OPENAPPLE
				bmi .9					Open apple key, not for us...
				lda KBD
				bpl .9
				sta KBDSTROBE

				and #$7F

				tax
				jmp DRV.READ.X

.9				lda	#0					Error = no event
				sec
				rts
*--------------------------------------
DRV.SYS.WRITE	ldy #S.IOCTL.BUFPTR
				lda (pIOCTL),y
				
				sta ZPDRV+4
				iny 
				lda (pIOCTL),y
				sta ZPDRV+5
				
				ldy #S.IOCTL.BYTECNT
				lda (pIOCTL),y
				eor #$ff
				tax
				iny
				lda (pIOCTL),y
				eor #$ff
				tay
				
.2				inx
				bne .3
				iny
				bne .3
				clc
				rts
				
.3				lda (ZPDRV+4)
				inc ZPDRV+4
				bne .4
				inc ZPDRV+5
				
.4				jsr DRV.SYS.COUT

.5				bra .2
*--------------------------------------
DRV.SYS.COUT	phx
				phy
				cmp #' '
				bcs .1

				jsr DRV.SYS.CTRL
				bra .8
				
.1				ora #$80
				ldy DRV.SYS.CH
				ldx DRV.SYS.CV
				jsr DRV.SYS.SetCharAtYX
				jsr DRV.SYS.FS

.8				ply
				plx
				clc
				rts
*--------------------------------------
DRV.SYS.CTRL	ldx #DRV.SYS.CTRLCNT-1

.1				cmp DRV.SYS.CTRLS,x
				beq .2
				dex
				bpl .1
				clc
				rts
				
.2				txa
				asl
				tax
				jmp (.3,x)
				
.3				.DA DRV.SYS.ENQ			5
				.DA DRV.SYS.BS			8
				.DA DRV.SYS.LF			10
				.DA	DRV.SYS.FF			12
				.DA DRV.SYS.CR			13
				.DA DRV.SYS.FS			21
				.DA DRV.SYS.ESC			27
*--------------------------------------
DRV.SYS.ENQ		clc
				rts
*--------------------------------------
DRV.SYS.BS		ldx DRV.SYS.CH
				beq .1
				dec DRV.SYS.CH
				bra .3

.1				ldy DRV.SYS.CV
				cpy #1
				bne .2
				clc
				rts

.2				lda #79
				sta DRV.SYS.CH
				dec DRV.SYS.CV	

.3				clc
				rts
*--------------------------------------
DRV.SYS.LF		ldx DRV.SYS.CV
				cpx #23
				beq DRV.SYS.Scroll
				inc DRV.SYS.CV
				rts
*--------------------------------------
DRV.SYS.FF		ldx #23

.1				jsr DRV.SYS.ClrLineAtX
				dex
				bne .1

				stz DRV.SYS.CH
				lda #1
				sta DRV.SYS.CV

				rts
*--------------------------------------
DRV.SYS.CR		jsr DRV.SYS.ClrEOL
				stz DRV.SYS.CH
				rts
*--------------------------------------
DRV.SYS.FS		lda DRV.SYS.CH
				cmp #79
				bne .1

				stz DRV.SYS.CH
				bra DRV.SYS.LF

.1				inc DRV.SYS.CH
				rts
*--------------------------------------
DRV.SYS.ESC

				clc
				rts
*--------------------------------------
DRV.SYS.ClrEOL	ldx	DRV.SYS.CV
				lda #$A0
				ldy DRV.SYS.CH
.1				cpy #79
				beq .2
				jsr DRV.SYS.SetCharAtYX
				iny
				bne .1
.2				rts
*--------------------------------------
DRV.SYS.ScrollAux
				sta SETREADAUX
				
.1				lda (ZPDRV+2),y
				sta (ZPDRV),y
				dey
				bpl .1

				sta CLRREADAUX
				rts
*--------------------------------------
DRV.SYS.Scroll	ldx #DRV.SYS.Scroll-DRV.SYS.ScrollAux-1
				
.1				lda DRV.SYS.ScrollAux,x
				sta $102,x
				dex
				bpl .1
			
				ldx #1
				
.2				jsr DRV.SYS.SetBaseX

				inx
				lda DRV.SYS.BASEL,x
				sta ZPDRV+2
				lda DRV.SYS.BASEH,x
				sta ZPDRV+3

				ldy #39

				sta SETWRITEAUX
				jsr $102
				sta CLRWRITEAUX

				ldy #39
				
.3				lda (ZPDRV+2),y
				sta (ZPDRV),y
				dey
				bpl .3

				cpx #23
				bne .2					Fall in ClrLineAtX for last line
*--------------------------------------
DRV.SYS.ClrLineAtX
				jsr DRV.SYS.SetBaseX

				lda #$A0
				ldy #39
				
.1				sta SETWRITEAUX
				sta (ZPDRV),y
				sta CLRWRITEAUX
				sta (ZPDRV),y
				dey
				bpl .1
				
				rts
*--------------------------------------
DRV.SYS.SetCharAtYX
				cmp #$40
				bcc .1
				cmp #$5F
				bcs .1
				and #$3F

.1				phy
				pha
				jsr DRV.SYS.SetBaseX
				tya
				lsr
				tay
				
				pla
				
				bcs .2
				
				sta SETWRITEAUX
				sta (ZPDRV),y
				sta CLRWRITEAUX			

				ply
				rts
				
.2				sta (ZPDRV),y
				ply
				rts
*--------------------------------------
DRV.SYS.SetBaseX
				lda DRV.SYS.BASEL,x
				sta ZPDRV
				lda DRV.SYS.BASEH,x
				sta ZPDRV+1
				rts
*--------------------------------------
DRV.SYS.DIB		.DA #S.DIB.S.WRITE+S.DIB.S.READ+S.DIB.S.OPENED
				.DA #0,#0,#0
				>PSTR "A2osX SYS Screen"
				.DA #S.DIB.T.CHAR
				.DA #0
				.DA KVER
*--------------------------------------
DRV.SYS.CH		.BS 1
DRV.SYS.CV		.BS 1
*--------------------------------------
DRV.SYS.BASEL	.HS	00.80.00.80.00.80.00.80.28.A8.28.A8.28.A8.28.A8.50.D0.50.D0.50.D0.50.D0
DRV.SYS.BASEH	.HS	08.08.09.09.0A.0A.0B.0B.08.08.09.09.0A.0A.0B.0B.08.08.09.09.0A.0A.0B.0B
DRV.SYS.CTRLCNT	.EQ 7
DRV.SYS.CTRLS	.HS 05080A0C0D151B
*--------------------------------------
DRV.STATUS.YA	>STYA .2+1

				ldy #S.IOCTL.STATCODE
				lda (pIOCTL),y
				beq .1
				
				cmp #S.IOCTL.STATCODE.GETDIB
				bne .9
				
				ldx #S.DIB-1
				.HS 2C					bit abs
.1				ldx #3

				ldy #S.IOCTL.BUFPTR
				lda (pIOCTL),y
				sta .3+1
				iny
				lda (pIOCTL),y
				sta .3+2
				
.2				lda $ffff,x				SELF MODIFIED
.3				sta $ffff,x				SELF MODIFIED
				dex
				bpl .2
				
				clc
				rts

.9				lda #MLI.E.BADCTL
				sec
				rts
*--------------------------------------
DRV.READ.X		ldy #S.IOCTL.BYTECNT
				lda #1
				sta (pIOCTL),y
				iny
				dec
				sta (pIOCTL),y

				ldy #S.IOCTL.BUFPTR
				lda (pIOCTL),y
				sta .1+1
				iny
				lda (pIOCTL),y
				sta .1+2
				
.1				stx $ffff				SELF MODIFIED
				clc
				rts
*--------------------------------------
MAN
SAVE /A2OSX.SRC/SYS/KERNEL.S.DRV
LOAD /A2OSX.SRC/SYS/KERNEL.S
ASM