mirror of
https://github.com/A2osX/A2osX.git
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222 lines
4.2 KiB
Plaintext
222 lines
4.2 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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*--------------------------------------
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DevMgr.HiMem .EQ $FFFE Protect IRQ vector in Aux LC
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*--------------------------------------
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* S.DevMgrInit
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*--------------------------------------
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S.DevMgrInit ldx #S.DEV.SIZE*DevMgr.Count
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.1 lda DevMgr.NUL-1,x
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sta DevMgr.Table-1,x
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dex
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bne .1
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stz DevMgr.Table+S.DEV.SIZE*DevMgr.Count+1
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lda #DevMgr.Count-1
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sta DevMgr.LastDevID
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>LDYAI DevMgr.End
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>STYA DevMgr.Free
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clc
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rts
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*--------------------------------------
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* S.GetDevByIDA
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* IN:
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* A = DevID
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* OUT:
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* CC = OK, CS = ERROR
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* Y,A = devslot
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* X Unmodified
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*--------------------------------------
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S.GetDevByIDA cmp DevMgr.LastDevID
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beq .1
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bcs .9
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.1 stz S.GetDevByIDA.T
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asl
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ror S.GetDevByIDA.T
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asl
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ror S.GetDevByIDA.T
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asl
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ror S.GetDevByIDA.T
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asl
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ror S.GetDevByIDA.T
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adc #DevMgr.Table
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tay
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lda S.GetDevByIDA.T
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adc /DevMgr.Table
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rts CC
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.9 lda #DEVMGR.ERRDNF
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rts CS
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S.GetDevByIDA.T .BS 1
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*--------------------------------------
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* GetDevIDByNameA
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* IN:
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* A = hPStr
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* OUT:
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* CC = OK, CS = ERROR
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* X = DEVID
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* Y,A = pDev
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*--------------------------------------
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S.GetDevByNameA jsr S.GetMemPtrA
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S.GetDevByNameYA
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>STYA ZPQuickPtr1
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>LDYAI DevMgr.Table+S.DEV.NAME
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>STYA ZPQuickPtr2
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ldx #0
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.1 lda (ZPQuickPtr1)
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cmp (ZPQuickPtr2)
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bne .3
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tay
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.2 lda (ZPQuickPtr1),y
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cmp (ZPQuickPtr2),y
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bne .3
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dey
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bne .2
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lda ZPQuickPtr2
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sec
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sbc #S.DEV.NAME
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tay
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lda ZPQuickPtr2+1
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sbc /S.DEV.NAME
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clc
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rts
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.3 lda ZPQuickPtr2
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clc
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adc #S.DEV.SIZE
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sta ZPQuickPtr2
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bcc .4
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inc ZPQuickPtr2+1
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.4 cpx DevMgr.LastDevID
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inx
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bcc .1
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.9 lda #DEVMGR.ERRDNF
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rts
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*--------------------------------------
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S.GetDevEvent >LDYAI DevMgr.Table
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>STYA pDev
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stz DevMgr.DevID
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.1 ldy #S.DEV.F
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lda (pDev),y get S.DEV.F
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and #S.DEV.F.EVENT
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beq .2 EVENT enabled ?
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ldx #DEVMGR.GETEVENT
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jsr pDevJmp Call DRV GetEvent function
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bcc .8 Got An Event
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.2 lda pDev
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clc
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adc #S.DEV.SIZE
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sta pDev
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bcc .3
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inc pDev+1
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.3 lda DevMgr.DevID
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inc DevMgr.DevID
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cmp DevMgr.LastDevID
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bne .1
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lda #0 error code=0,CS=no event
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sec
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rts
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.8 lda DevMgr.DevID Carry is alredy clear
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ldy #S.EVT.hDEV
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sta (pEvent),y
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rts
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*--------------------------------------
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S.GetKeyboardEvent
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lda KBD
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bpl .9
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sta KBDSTROBE
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and #$7F
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ldy #S.EVT.DATA
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sta (pEvent),y
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iny
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lda OPENAPPLE
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asl
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lda SOLIDAPPLE
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ror
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and #$C0
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sta (pEvent),y
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lda #S.EVT.F.KEY
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sta (pEvent)
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clc
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rts
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.9 inc A2osX.RANDOM16
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bne .99
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inc A2osX.RANDOM16+1
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.99 lda #0 error code=0
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sec no event
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rts
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*--------------------------------------
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DevMgr.Free .BS 2
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DevMgr.DevID .BS 1
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DevMgr.LastDevID .BS 1
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*--------------------------------------
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DevMgr.Count .EQ 2
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*--------------------------------------
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DevMgr.NUL cld
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jmp (DevMgr.NUL.Code,x)
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.DA #S.DEV.F.INUSE+S.DEV.F.SHARE+S.DEV.F.COUT+S.DEV.F.CHAR
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>PSTRING "NUL" NAME
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.HS 00 NAME must Be 5 bytes long
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.HS 00.00
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.HS 00.00.00.00
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*--------------------------------------
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DevMgr.SYS cld
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jmp (DevMgr.SYS.Code,x)
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.DA #S.DEV.F.INUSE+S.DEV.F.SHARE+S.DEV.F.COUT+S.DEV.F.CHAR
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>PSTRING "SYS" NAME
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.HS 00 NAME must Be 5 bytes long
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.HS 00.00
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.HS 00.00.00.00
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*--------------------------------------
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DevMgr.NUL.Code .DA .8 OPEN
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.DA .8 GETEVENT
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.DA .8 COUT
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.DA .8 CLOSE
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.DA .8 GETINFO
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.DA .8 IRQ
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.8 clc
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rts
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*--------------------------------------
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DevMgr.SYS.Code .DA .8 OPEN
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.DA .8 GETEVENT
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.DA .8 COUT
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.DA .8 CLOSE
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.DA .8 GETINFO
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.DA .8 IRQ
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.8 clc
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rts
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*--------------------------------------
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DevMgr.End .EQ *
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MAN
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SAVE SYS/KERNEL.S.DEV
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LOAD SYS/KERNEL.S
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ASM
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