mirror of
https://github.com/A2osX/A2osX.git
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236 lines
4.6 KiB
Plaintext
236 lines
4.6 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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LOMEM $A00
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INC 1
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AUTO 6
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*/--------------------------------------
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* #FileSearch
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* Search a file in the provided PATH list
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* And return, if found, the full path to it.
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* ##In:
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* PUSHW = Ptr to Search Path (PSTR) %LIB%;/SYS/SLIB
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* PUSHW = Ptr to File Name (PSTR)
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* ##Out:
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* CC : success
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* Y,A = PSTR to FilePath (PSTR)
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* X = hMem to FilePath
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* CS : not found
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*\--------------------------------------
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K.FileSearch >PULLW ZPPtr4 ZPPtr1 trashed by ExpandPStrYA
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>PULLYA Get Search list
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>SYSCALL ExpandPStrYA Expand it (SYSCALL to BNK1)
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bcs .99
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stx K.FileSearch.hSrch
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>STYA ZPPtr3 ZPPtr2 trashed by K.STAT !!! expanded search list ;
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stz K.FileSearch.Index
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.1 stz KrnBuf256 reset String
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ldx #0
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ldy K.FileSearch.Index
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.2 tya
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cmp (ZPPtr3) end of src string ?
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beq .3 end of string, try it....
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iny
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lda (ZPPtr3),y
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cmp #';'
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beq .3
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inx
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sta KrnBuf256,x
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bra .2
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.3 txa
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beq .98 String is empty....nothing to try
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sty K.FileSearch.Index save current index
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ldy #0
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.4 iny
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lda (ZPPtr4),y Append Fiename...
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inx
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sta KrnBuf256,x
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tya
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cmp (ZPPtr4)
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bne .4
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stx KrnBuf256 set string length
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>PUSHWI K.S.STAT
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>PUSHWI KrnBuf256
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jsr K.STAT
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bcs .1 Failed...retry next path...
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lda K.FileSearch.hSrch Discard Expanded hSrch list
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jsr K.FreeMemA
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bra K.GetFullPathYA.NewStr
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.98 lda K.FileSearch.hSrch Discard Expanded hSrch list
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jsr K.FreeMemA
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lda #SYSMGR.ERRFNF
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sec
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.99 rts
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*--------------------------------------
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K.FileSearch.hSrch .BS 1
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K.FileSearch.Index .BS 1
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*/--------------------------------------
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* #GetFullPathYA
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* ##In :
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* Y,A = Filename (PSTR)
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* ##Out :
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* CC : success
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* Y,A = FullPath (PSTR)
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* X = hMem of FullPath
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* CS : A = Error Code
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*\--------------------------------------
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K.GetFullPathYA >STYA ZPPtr3 Ptr1 & 2 used by StrCpy
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lda (ZPPtr3)
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beq K.GetFullPathYA.9
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stz KrnBuf256
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ldy #1
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lda (ZPPtr3),y
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cmp #'/' full path starting with '/'?
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beq .1 yes, do not append to current prefix
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ldy #S.PS.hPREFIX
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lda (pPs),y
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jsr K.GetMemPtrA
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>PUSHYA
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>PUSHWI KrnBuf256
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>SYSCALL PStrCpy
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.1 >PUSHW ZPPtr3
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>PUSHWI KrnBuf256
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>SYSCALL PStrCat
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K.GetFullPathYA.NewStr
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>LDYAI KrnBuf256
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>SYSCALL NewPStrYA
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rts
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K.GetFullPathYA.9
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sec
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rts
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*/--------------------------------------
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* #LoadFile
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* ##In:
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* PUSHW = AUXTYPE (Handled by....
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* PUSHB = TYPE ...
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* PUSHB = MODE ...
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* PUSHW = PATH ...FOpen)
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* ##Out:
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* Y,A = File Length
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* X = hMem of Loaded File
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*\--------------------------------------
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K.LoadFile jsr K.FOpen
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bcs .9
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sta K.LoadFile.hFile
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ldx #SYS.FSeek.END
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jsr K.LoadFile.Seek
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bcs .99
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lda K.LoadFile.hFile
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jsr K.FTellA
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bcs .99
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>STYA K.LoadFile.Len
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phx
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plx
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bne .98 LEN > 65535 !!???
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>PUSHYA push len
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>PUSHBI 0
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jsr K.GetMem
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bcs .99
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>STYA K.LoadFile.Mem
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stx K.LoadFile.hMem
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ldx #SYS.FSeek.SET
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jsr K.LoadFile.Seek
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bcs .97
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>PUSHW K.LoadFile.Mem
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>PUSHW K.LoadFile.Len
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>PUSHB K.LoadFile.hFile
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jsr K.FRead
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bcs .97
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jsr .99
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>LDYA K.LoadFile.Len
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ldx K.LoadFile.hMem
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clc
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.9 rts
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.97 pha
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lda K.LoadFile.hMem
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jsr K.FreeMemA
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pla
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.HS 2C
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.98 lda #SYSMGR.ERRFTB
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.99 pha
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lda K.LoadFile.hFile
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jsr K.FCloseA
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pla
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sec
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rts
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*--------------------------------------
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K.LoadFile.Seek >PUSHWI 0
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>PUSHWI 0
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txa
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>PUSHA
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>PUSHB K.LoadFile.hFile
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jmp K.FSeek
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*/--------------------------------------
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* #SaveFile
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* ##In:
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* PUSHW = SrcLen
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* PUSHW = SrcPtr
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* PUSHW = AUXTYPE (Handled by....
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* PUSHB = TYPE ...
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* PUSHB = MODE ...
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* PUSHW = PATH ...FOpen)
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*\--------------------------------------
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K.SaveFile jsr K.FOpen
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bcs .9
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sta K.LoadFile.hFile
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>PUSHB K.LoadFile.hFile
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jsr K.FWrite
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bcs .99
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jsr .99
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clc
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rts
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.99 pha
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lda K.LoadFile.hFile
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jsr K.FCloseA
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pla
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sec
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rts
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.9 >POP 4 Discard SrcPtr & SrcLen
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sec
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rts
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*--------------------------------------
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K.LoadFile.hFile .BS 1
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K.LoadFile.hMem .BS 1
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K.LoadFile.Mem .BS 2
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K.LoadFile.Len .BS 2
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*--------------------------------------
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MAN
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SAVE SYS/KERNEL.S.FIO
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LOAD SYS/KERNEL.S
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ASM
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