A2osX/SYS/KERNEL.S.DRV.txt
2016-01-04 08:18:33 +01:00

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
* S.LoadDrvA
* in :
* A = hMem To Full Cmd Line
* out :
* none
*--------------------------------------
S.LoadDrvA >PUSHA push Cmd Line for S.PStrGetTkn
>PUSHBI $20 Push SEP=' '
>PUSHBI 0 Push 0 for getting CMD And ARGS
jsr S.PStrGetTkn
bcc .1
rts
.1 sta LoadDrv.Cmd
stx LoadDrv.Args
>LDYAI ENV.DRV push ENVNAME=DRV
jsr S.GetEnvVarYA get value for ENV=$DRV
bcs .98
sta LoadDrv.Path
>PUSHB LoadDrv.Cmd push CMD for S.FileSearch
>PUSHB LoadDrv.Path
jsr S.FileSearch find File in $DRV
bcs .97 not Found
sta LoadDrv.FullName
jsr S.LoadBinA
bcs .96
>STYA pCode
stx LoadDrv.hMem
lda LoadDrv.Args
jsr pCodeJmp call Dev.Detect
bcs .95
jsr S.InsDrv
bcs .95
jsr .95
ldy #S.DEV.F
lda (pDev),y
ora #S.DEV.F.INUSE
sta (pDev),y
clc
rts
.95 pha
lda LoadDrv.hMem
jsr S.FreeMemA
pla
.96 pha
lda LoadDrv.FullName
jsr S.FreeMemA
pla
.97 pha
lda LoadDrv.Path
jsr S.FreeMemA
pla
.98 pha
lda LoadDrv.Args
jsr S.FreeMemA
lda LoadDrv.Cmd
jsr S.FreeMemA
pla
.99 sec
rts
*--------------------------------------
LoadDrv.Cmd .BS 1
LoadDrv.Args .BS 1
LoadDrv.Path .BS 1
LoadDrv.FullName .BS 1
LoadDrv.hMem .BS 1
*--------------------------------------
* pCode = .DRV File Loaded Address
*--------------------------------------
S.InsDrv ldy #H.BIN.DRV.CODE.LEN
lda (pCode),y
sta R.AL
iny
lda (pCode),y
sta R.AH
ldy #H.BIN.DRV.CODE.O
lda (pCode),y
clc
adc S.LoadBinA.AuxType
sta R.BL
iny
lda (pCode),y
adc S.LoadBinA.AuxType+1
sta R.BH set BX=End Of Code
lda S.LoadBinA.AuxType
clc
adc S.LoadBinA.FileLen
sta R.CL
lda S.LoadBinA.AuxType+1
adc S.LoadBinA.FileLen+1
sta R.CH set CX=End Of Range
ldy #H.BIN.DRV.CODE.O
lda S.LoadBinA.FileLen
sec
sbc (pCode),y
sta S.InsDrv.DRVLen
iny
lda S.LoadBinA.FileLen+1
sbc (pCode),y
sta S.InsDrv.DRVLen+1 Compute DRV Len
lda DevMgr.Free
clc
adc S.InsDrv.DRVLen
sta S.InsDrv.DRVEnd
lda DevMgr.Free+1
adc S.InsDrv.DRVLen+1
sta S.InsDrv.DRVEnd+1
bcs .98 we crossed $FFFF, out of mem
lda S.InsDrv.DRVEnd
sec
sbc #DevMgr.HiMem
lda S.InsDrv.DRVEnd+1
sbc /DevMgr.HiMem
bcs .98 No More Room to load Driver....
lda DevMgr.LastDevID
inc
cmp #K.DEV.MAX
beq .99 No Device Handle Left
sta DevMgr.LastDevID
ldy #H.BIN.DEV.HEADER.O
lda (pCode),y
clc
adc pCode
sta ZPQuickPtr1
iny
lda (pCode),y
adc pCode+1
sta ZPQuickPtr1+1
ldy #S.DEV.JMP
lda DevMgr.Free
sec
sbc (ZPQuickPtr1),y
sta R.DL
lda DevMgr.Free+1
iny
sbc (ZPQuickPtr1),y
sta R.DH set DX=Offset
ldy #H.BIN.DRV.CODE.O
lda (pCode),y
clc
adc pCode
pha
iny
lda (pCode),y
adc pCode+1
ply
jsr S.DrvRelocateYA
jsr S.InsDrv.Move
>LDYA S.InsDrv.DrvEnd
>STYA DevMgr.Free
clc
rts
.98 lda #DEVMGR.ERROOM
sec
rts
.99 lda #DEVMGR.ERROOH
sec
rts
*--------------------------------------
S.InsDrv.Move ldy #H.BIN.DEV.HEADER.O
lda (pCode),y
clc
adc pCode
sta ZPQuickPtr1
iny
lda (pCode),y
adc pCode+1
sta ZPQuickPtr1+1
ldy #S.DEV.JMP Relocate Main JMP
lda (ZPQuickPtr1),y
clc
adc R.DL
sta (ZPQuickPtr1),y
iny
lda (ZPQuickPtr1),y
adc R.DH
sta (ZPQuickPtr1),y
lda DevMgr.LastDevID
jsr S.GetDevByIDA
>STYA pDev
ldy #S.DEV.SIZE Make sure DevMgr.Table Ends with 0
lda #0
sta (pDev),y
dey
.1 lda (ZPQuickPtr1),y Copy DRV.Header
sta (pDev),y
dey
bpl .1
ldy #H.BIN.DRV.CODE.O
lda (pCode),y
clc
adc pCode
sta ZPQuickPtr1
iny
lda (pCode),y
adc pCode+1
sta ZPQuickPtr1+1 Make ZPQuickPtr1=DRV.CODE
lda DevMgr.Free
sta ZPQuickPtr2
lda DevMgr.Free+1
sta ZPQuickPtr2+1 Make ZPQuickPtr2=Dest Ram Location
ldy S.InsDrv.DrvLen
ldx S.InsDrv.DrvLen+1
.2 lda (ZPQuickPtr1)
sta (ZPQuickPtr2)
inc ZPQuickPtr1
bne .3
inc ZPQuickPtr1+1
.3 inc ZPQuickPtr2
bne .4
inc ZPQuickPtr2+1
.4 tya
bne .5
txa
beq .8
dex
.5 dey
bra .2
.8 rts
*--------------------------------------
S.InsDrv.DrvLen .BS 2
S.InsDrv.DrvEnd .BS 2
*--------------------------------------
MAN
SAVE SYS/KERNEL.S.DRV
LOAD SYS/KERNEL.S
ASM