A2osX/SYS/KERNEL.S.DRV.txt
2016-10-24 17:54:43 +02:00

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
* K.LoadDrvYA
* in :
* Y,A = PTR To Full Cmd Line PStrArray
* out :
* none
*--------------------------------------
K.LoadDrvYA >STYA K.LoadDrv.CmdArray
>LDYAI ENV.DRV push ENVNAME=DRV
>SYSCALL GetEnvYA get value for ENV=DRV
bcs .99
>PUSHYA Push $DRV value
>PUSHW K.LoadDrv.CmdArray (ARG[0] = DRVNAME)
jsr K.FileSearch find libname in $DRV
bcs .99
stx K.LoadDrv.hFullName
jsr K.LoadExeYA Y,A =filename full path
bcs .98
>STYA pDrv
stx K.LoadDrv.hMem
>LDYA K.LoadDrv.CmdArray Advance to ARG[1]
>STYA ZPQuickPtr1
lda ZPQuickPtr1
sec
adc (ZPQuickPtr1)
sta ZPQuickPtr1
bcc .1
inc ZPQuickPtr1+1
.1 >LDYA ZPQuickPtr1
jsr pDrvJmp call Dev.Detect
bcs .97
jsr BIN.InstallDRV
bcs .97
ldy #S.DEV.F
lda (pDev),y
ora #S.DEV.F.INUSE
sta (pDev),y
jsr .97 Cleanup...
lda #0 Make sure RC = 0 if success
clc
.99 rts
.97 pha
lda K.LoadDrv.hMem
jsr K.FreeMemA
pla
.98 pha
lda K.LoadDrv.hFullName
jsr K.FreeMemA
pla
sec
rts
*--------------------------------------
K.LoadDrv.CmdArray .BS 2
K.LoadDrv.hFullName .BS 1
K.LoadDrv.hMem .BS 1
*--------------------------------------
MAN
SAVE SYS/KERNEL.S.DRV
LOAD SYS/KERNEL.S
ASM