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A2osX/SYS/KERNEL.S.STAT.txt
Rémy GIBERT 0f9ebec8be Kernel 0.94+
2020-12-15 14:23:22 +01:00

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NEW
AUTO 3,1
*/--------------------------------------
* # ChTyp
* Change The type of a ProDOS File
* ## C
* `int chtyp(const char *filepath, short int filetype);`
* ## ASM
* `>PUSHW filepath`
* `>PUSHB filetype`
* `>SYSCALL chtyp`
* ## RETURN VALUE
*\--------------------------------------
K.ChTyp jsr PFT.CheckPath1
bcs K.ChTyp.9
>MLICALL MLIGETFILEINFO
bcs K.ChTyp.9
lda (pStack)
sta K.MLI.PARAMS+S.FI.T
K.ChTyp.8 >MLICALL MLISETFILEINFO
K.ChTyp.9 >RET 3
*/--------------------------------------
* # SetAttr
* Change Attributes of a ProDOS File
* ## C
* `int setattr(const char *filepath, short int attributes);`
* ## ASM
* `>PUSHW filepath`
* `>PUSHB attributes`
* `>SYSCALL setattr`
* ## RETURN VALUE
*\--------------------------------------
K.SetAttr jsr PFT.CheckPath1
bcs K.ChTyp.9
>MLICALL MLIGETFILEINFO
bcs K.ChTyp.9
lda (pStack)
sta K.MLI.PARAMS+S.FI.A
bra K.ChTyp.8
*--------------------------------------
* # ChMod
* change permissions of a file
* ## C
* `int chmod(const char *pathname, int mode);`
* ## ASM
* `>PUSHW pathname`
* `>PUSHW mode`
* `>SYSCALL chmod`
* ## RETURN VALUE
*--------------------------------------
K.ChMod jsr PFT.CheckPath2
bcs K.ChMod.RET4
jsr STAT.PullPathAndMode
stz K.MLI.PARAMS+3+S.FIEX.ACL read mode
>MLICALL MLIACL
bcs .9
>LDYA K.S.STAT+S.STAT.MODE
>STYA K.MLI.PARAMS+3+S.FIEX.ACL.MOD
lda #$57 write mode
sta K.MLI.PARAMS+3+S.FIEX.ACL
>MLICALL MLIACL
.9 rts
K.ChMod.RET4 inc pStack
K.ChMod.RET3 inc pStack
inc pStack
inc pStack
rts
*--------------------------------------
* # FStat
* Return information about a hFILE
* ## C
* `int fstat(short int hFILE, struct stat *statbuf);`
* ## ASM
* `>PUSHB hFILE`
* `>PUSHW statbuf`
* `>SYSCALL fstat`
* ## RETURN VALUE
*--------------------------------------
K.FStat jsr PFT.CheckNode2
bcs K.ChMod.RET3
>PULLW K.Stat.Store.2+1
>PULLA
tax
lda Nod.Table.hName-2,x get path
jsr K.GetMemPtr
jsr PFT.YAToMLIPATH
jsr FS.Stat.203
bcs K.Stat.Store.RTS
ldy #S.FD.REG.REF
lda (pFD),y
sta K.MLI.PARAMS+1
>MLICALL MLIGETEOF
bcs K.Stat.Store.RTS
ldx #2
.1 lda K.MLI.PARAMS+2,x
sta K.S.STAT+S.STAT.SIZE,x
dex
bpl .1
K.Stat.Store ldy #S.STAT-1
K.Stat.Store.1 lda K.S.STAT,y
K.Stat.Store.2 sta $ffff,y SELF MODIFIED
dey
bpl K.Stat.Store.1
* clc
K.Stat.Store.RTS
rts
*/--------------------------------------
* # Stat
* Return information about a file
* ## C
* `int stat(const char *pathname, struct stat *statbuf);`
* ## ASM
* `>PUSHW pathname`
* `>PUSHW statbuf`
* `>SYSCALL stat`
* ## RETURN VALUE
*\--------------------------------------
K.Stat jsr PFT.CheckPath2
bcs K.ChMod.RET4 go discard statbuf
>PULLW K.Stat.Store.2+1
inc pStack
inc pStack
jsr FS.Stat
bcc K.Stat.Store
rts
*/-------------------------------------
* # MKDir
* create a directory
* ## C
* `int mkdir(const char *pathname, int mode);`
* ## ASM
* `>PUSHW pathname`
* `>PUSHW mode`
* `>SYSCALL mkdir`
* ## RETURN VALUE
* CC : success
* CS : error
* A = EC
*\-------------------------------------
K.MKDir jsr PFT.CheckPath2
bcs K.ChMod.RET4
jsr STAT.PullPathAndMode
lda #S.FI.T.DIR
sta K.MLI.PARAMS+4
stz K.MLI.PARAMS+5
stz K.MLI.PARAMS+6
lda #S.FI.ST.DIR
jmp FS.CREATE
*/--------------------------------------
* # MKFIFO
* return a pathname to a new FIFO
* ## C
* `hFILE mkfifo(const char *pathname, int mode);`
* ## ASM
* `>PUSHW pathname`
* `>PUSHW mode`
* `>SYSCALL mkfifo`
* ## RETURN VALUE
* CC = OK, CS = ERROR
* A = hFILE
*\--------------------------------------
K.MKFIFO jsr STAT.PullPathAndMode
>LDYAI 512
jsr K.pipe
bcs K.Stat.Store.RTS
ldy #0
.1 lda STAT.FIFO,y
sta (ZPPtr1),y fill pathname buffer
iny
cpy #4
bne .1
lda IO.hFD
jsr MATH32.AToHexAX
sta (ZPPtr1),y
txa
iny
sta (ZPPtr1),y
iny
lda #0
sta (ZPPtr1),y
bra K.MkNod.I
*/--------------------------------------
* # MkNod
* Create a special or ordinary file.
* (CDEV, BDEV, DSOCKS, SSOCK, PIPE)
* ## C
* `hFILE mknod(const char *pathname, int mode, hFD fd);`
* ## ASM
* `>PUSHW pathname`
* `>PUSHW mode`
* `>PUSHB fd`
* `>SYSCALL mknod`
* ## RETURN VALUE
* CC = OK, CS = ERROR
* A = hFILE
*\--------------------------------------
K.MkNod >PULLB IO.hFD
jsr STAT.PullPathAndMode
K.MkNod.I ldx #2
.1 lda Nod.Table.hFD-2,x empty slot ?
beq .2
inx
inx
cpx #K.Nod.MAX+2
bne .1
lda #E.OOH
* sec
rts
.2 stx IO.hDevNod
>LDYA ZPPtr1
>SYSCALL2 StrDup
bcs .9
txa
.3 ldx IO.hDevNod
sta Nod.Table.hName-2,x store path
.4 lda IO.hFD
sta Nod.Table.hFD-2,x store hFD
txa hDevNod
clc
.9 rts
*/--------------------------------------
* # pipe
* ## C
* `hFD pipe(int size);`
* ## ASM
* `>LDYA size`
* `>SYSCALL pipe`
* ## RETURN VALUE
* CC = OK, CS = ERROR
* A = hFD
*\--------------------------------------
K.Pipe sta .1+1 SIZE HI
>SYSCALL2 NewStkObj
bcs .99
stx .8+1 save PIPE buffer
ldx #2
jsr DEV.MkFD
bcs .9
.1 lda #$ff SELF MODIFIED
ldy #S.FD.PIPE.Free+1
sta (pFD),y
ldy #S.FD.PIPE.Size+1
sta (pFD),y
ldy #S.FD.PIPE.hMem
.8 lda #$ff Self Modified
sta (pFD),y
txa hFD
* clc
rts
.9 pha save error code
lda .8+1 get back PIPE buffer
>SYSCALL2 FreeStkObj
pla
sec
.99
K.Pipe.RTS rts
*--------------------------------------
STAT.PullPathAndMode
>PULLW K.S.STAT+S.STAT.MODE
>PULLW ZPPtr1 pathname
rts
*--------------------------------------
STAT.FIFO .AS "fifo"
*--------------------------------------
MAN
SAVE usr/src/sys/kernel.s.stat
LOAD usr/src/sys/kernel.s
ASM
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