A2osX/SYS/KERNEL.S.FIO.txt

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NEW
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AUTO 3,1
*/--------------------------------------
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* # ChTyp
* Change The type of a ProDOS File
* ## C
* `int chtyp(const char *filepath, const char filetype);`
* ## ASM
* **In:**
* `>PUSHBI filetype`
* `>LDYA filepath`
* `>SYSCALL chtyp`
* ## RETURN VALUE
*\--------------------------------------
K.ChTyp jsr PFT.CheckPathYA
bcs .99
>PULLB .1+1
>MLICALL MLIGETFILEINFO
bcs .9
.1 lda #$ff
sta K.MLI.PARAMS+S.FI.T
>MLICALL MLISETFILEINFO
.9 rts
.99 >RET 1 discard filetype
*/--------------------------------------
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* # LoadTxtFile
* Load TXT a file in memory (with ending 0)
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* ## C
* `int loadtxtfile ( const char * filename, short int flags, short int ftype, int auxtype );`
* ## ASM
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* **In:**
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* `>PUSHW auxtype`
* `>PUSHB ftype`
* `>PUSHB flags`
* `>LDYA filename`
* `>SYSCALL loadtxtfile`
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* ## RETURN VALUE
* Y,A = File Length (without ending 0)
* X = hMem of Loaded File
*\--------------------------------------
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.DUMMY
.OR ZPTMP
FIO.bTXT .BS 1
FIO.hFILE .BS 1
FIO.MemPtr .BS 2
FIO.hMem .BS 1
FIO.BytesRead .BS 2
.ED
*--------------------------------------
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K.LoadTxtFile sec
.HS 90 BCC
*/--------------------------------------
* # LoadFile
* Load a file in memory
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* ## C
* `int loadfile ( const char * filename, short int flags, short int ftype, int auxtype );`
* ## ASM
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* **In:**
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* `>PUSHW auxtype`
* `>PUSHB ftype`
* `>PUSHB flags`
* `>LDYA filename`
* `>SYSCALL loadfile`
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* ## RETURN VALUE
* Y,A = File Length
* X = hMem of Loaded File
*\--------------------------------------
K.LoadFile clc
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ror FIO.bTXT
jsr K.FOpen
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bcs .9
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.12 sta FIO.hFILE
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pha
>PUSHWI K.S.Stat
pla
jsr K.FStat
bcs .11
lda K.S.Stat+S.STAT.SIZE+3
ora K.S.Stat+S.STAT.SIZE+2
bne .10
>LDYA K.S.Stat+S.STAT.SIZE
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bit FIO.bTXT Add 1 to buffer size for ending 0
bpl .1
iny
bne .1
inc
bne .1
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.10 lda #E.FTB
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.11 bra .99
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.1 jsr K.GetMem
bcs .99
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>STYA FIO.MemPtr
stx FIO.hMem
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>PUSHW K.S.Stat+S.STAT.SIZE
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>PUSHW FIO.MemPtr
lda FIO.hFILE
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jsr K.FRead
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bcc .2
pha
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lda FIO.hMem
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jsr K.FreeMem
pla
.99 pha
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lda FIO.hFILE
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jsr K.FClose
pla
sec
.9 rts
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.2 >STYA FIO.BytesRead
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bit FIO.bTXT
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bpl .5
pha set ending 0
tya
* clc
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adc FIO.MemPtr
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sta .4+1
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pla
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adc FIO.MemPtr+1
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sta .4+2
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.4 stz $ffff Self Modified
.5 jsr .99 close file
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>LDYA FIO.BytesRead
ldx FIO.hMem
clc
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rts
*/--------------------------------------
* # ChOwn
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* **In:**
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* PUSHW = mod
* PUSHW = PATH
*\--------------------------------------
K.ChOwn
*/--------------------------------------
* # ChGrp
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* **In:**
* PUSHW = GID
* PUSHW = PATH
*\--------------------------------------
K.ChGrp
sec
rts
*--------------------------------------
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MAN
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SAVE USR/SRC/SYS/KERNEL.S.FIO
LOAD USR/SRC/SYS/KERNEL.S
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ASM