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https://github.com/A2osX/A2osX.git
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105 lines
2.2 KiB
Plaintext
105 lines
2.2 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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*--------------------------------------
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* In :
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* PULLW/Y,A = PATH (PSTR)
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* Out :
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*--------------------------------------
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S.PFTCHECKPATHSTK
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lda (pStack) read PTR.LO on top of stack
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pha
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ldy #1
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lda (pStack),y read PTR.HI on top of stack
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ply
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S.PFTCHECKPATHYA
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stx S.PFT.SYSCALL save #SYSCALL
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>STYA ZPQuickPtr1
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>LDYA FltMgr.Table
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>STYA ZPQuickPtr2
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.1 lda (ZPQuickPtr2) Get Filter Len
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beq .9 End Of Table, Exit
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tay
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lda (ZPQuickPtr1),y is there a "/" at this point in SRC path?
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cmp #'/'
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bne .8
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.2 lda (ZPQuickPtr1),y
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cmp (ZPQuickPtr2),y
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bne .8
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dey
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bne .2
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ldy #S.PFT.HANDLER
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lda (ZPQuickPtr2),y get hLib
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jsr K.GetMemPtrA
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>STYA .3+1
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lda S.PFT.SYSCALL getback #SYSCALL
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sec
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sbc #SYS.FOPEN-4 0=Lib.load, 2=Lib.Unload
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tax
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pla discard JSR return @
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pla
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>LDYA ZPQuickPtr1 restore passed params
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.3 jmp $ffff
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.8 lda ZPQuickPtr2
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clc
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adc (ZPQuickPtr2) Add STR len
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adc #S.PFT
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sta ZPQuickPtr2
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bcc .1
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.9 >LDYA ZPQuickPtr1 restore passed params
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ldx S.PFT.SYSCALL
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rts
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*--------------------------------------
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* In :
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* PULLB/A = hFILE/hDIR
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* Out :
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*--------------------------------------
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S.PFTCHECKFILESTK
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lda (pStack) read hFILE on top of stack
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S.PFTCHECKFILEA
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S.PFTCHECKDIRA stx S.PFT.SYSCALL save #SYSCALL
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sta S.PFT.hFILE
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jsr K.GetMemPtrA X = unmidified
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>STYA ZPQuickPtr1
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lda (ZPQuickPtr1)
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beq .9 Handler is 0, back to kernel....
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jsr K.GetMemPtrA
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>STYA .1+1
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lda S.PFT.SYSCALL getback #SYSCALL
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sec
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sbc #SYS.FOPEN-4 0=Lib.load, 2=Lib.Unload
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tax
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pla discard JSR return @
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pla
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lda S.PFT.hFILE restore passed params
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.1 jmp $ffff
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.9 lda S.PFT.hFILE
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rts
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*--------------------------------------
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S.PFT.hFILE .BS 1
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S.PFT.SYSCALL .BS 1
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*--------------------------------------
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MAN
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SAVE SYS/KERNEL.S.PFT
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LOAD SYS/KERNEL.S
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ASM
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