A2osX/SYS/KERNEL.S.STAT.txt

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2017-12-22 21:24:30 +00:00
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, short int filetype);`
* ## ASM
* `>PUSHW filepath`
* `>PUSHB filetype`
* `>SYSCALL chtyp`
* ## RETURN VALUE
*\--------------------------------------
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K.ChTyp jsr PFT.CheckPath1
bcs .9
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>MLICALL MLIGETFILEINFO
bcs .9
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lda (pStack)
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sta K.MLI.PARAMS+S.FI.T
>MLICALL MLISETFILEINFO
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.9 >RET 3
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*--------------------------------------
* # ChMod
* change permissions of a file
* ## C
* `int chmod(const char *pathname, int mode);`
* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
* `>SYSCALL chmod`
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* ## RETURN VALUE
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*--------------------------------------
* only 777-555
*--------------------------------------
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K.ChMod jsr PFT.CheckPath2
bcs K.ChMod.RET4
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jsr STAT.PullPathAndMode
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lda K.S.STAT+S.STAT.MODE+1
and /S.STAT.MODE.RU
beq .9
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lda K.S.STAT+S.STAT.MODE
and #S.STAT.MODE.XO+S.STAT.MODE.RO+S.STAT.MODE.XG+S.STAT.MODE.RG+S.STAT.MODE.XU+S.STAT.MODE.RU
cmp #S.STAT.MODE.XO+S.STAT.MODE.RO+S.STAT.MODE.XG+S.STAT.MODE.RG+S.STAT.MODE.XU+S.STAT.MODE.RU
bne .9
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>MLICALL MLIGETFILEINFO
bcs .90
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lda K.MLI.PARAMS+S.FI.A
and #$3D not S.FI.A.RN+S.FI.A.D+S.FI.A.W
ora #S.FI.A.R
tax
lda K.S.STAT+S.STAT.MODE
tay
bit #S.STAT.MODE.WG
beq .1
txa
ora #S.FI.A.RN
tax
tya
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.1 bit #S.STAT.MODE.WU
beq .2
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txa
ora #S.FI.A.D
tax
tya
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.2 bit #S.STAT.MODE.WO
beq .3
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txa
ora #S.FI.A.W
tax
.3 stx K.MLI.PARAMS+S.FI.A
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>MLICALL MLISETFILEINFO
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rts
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.9 lda #E.SYN
sec
.90 rts
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K.ChMod.RET4 >RET 4 discard statbuf
*--------------------------------------
* # FStat
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* Return information about a hFILE
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* ## C
* `int fstat(short int hFILE, struct stat *statbuf);`
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* ## ASM
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* `>PUSHB hFILE`
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* `>PUSHW statbuf`
* `>SYSCALL fstat`
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* ## RETURN VALUE
*--------------------------------------
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K.FStat >PULLW K.Stat.Store.2+1
>PULLA
jsr PFT.CheckNodeA
bcs K.Stat.Store.RTS
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tax
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lda OF.Table.hPath-1,x
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jsr K.GetMemPtr
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jsr PFT.YAToMLIPATH
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jsr FS.Stat
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bcs K.Stat.Store.RTS
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lda (pFD) #S.FD.T
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bne K.Stat.Store
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ldy #S.FD.REG.REF
lda (pFD),y
sta K.MLI.PARAMS+1
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>MLICALL MLIGETEOF
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bcs K.Stat.Store.RTS
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ldx #2
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.1 lda K.MLI.PARAMS+2,x
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sta K.S.STAT+S.STAT.SIZE,x
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dex
bpl .1
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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
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* clc
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K.Stat.Store.RTS
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rts
*/--------------------------------------
* # Stat
* Return information about a file
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* ## C
* `int stat(const char *pathname, struct stat *statbuf);`
* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW statbuf`
* `>SYSCALL stat`
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* ## RETURN VALUE
*\--------------------------------------
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K.Stat jsr PFT.CheckPath2
bcs K.ChMod.RET4 go discard statbuf
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>PULLW K.Stat.Store.2+1
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inc pStack
inc pStack
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jsr FS.Stat
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bcc K.Stat.Store
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rts
*/-------------------------------------
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* # MKDir
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* create a directory
* ## C
* `int mkdir(const char *pathname, int mode);`
* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
* `>SYSCALL mkdir`
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* ## RETURN VALUE
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* CC : success
* CS : error
* A = EC
*\-------------------------------------
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K.MKDir jsr PFT.CheckPath2
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bcs K.ChMod.RET4
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jsr STAT.PullPathAndMode
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lda #S.FI.T.DIR
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sta K.MLI.PARAMS+4
stz K.MLI.PARAMS+5
stz K.MLI.PARAMS+6
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lda #S.FI.ST.DIR
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jmp IO.MLI.CREATE
*/--------------------------------------
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* # MKFIFO
* return a pathname to a new FIFO
* ## C
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* `hFILE mkfifo(const char *pathname, int mode);`
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* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
* `>SYSCALL mkfifo`
* ## RETURN VALUE
* CC = OK, CS = ERROR
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* A = hFILE
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*\--------------------------------------
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K.MKFIFO jsr STAT.PullPathAndMode
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>LDYAI 512
jsr K.pipe
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bcs K.Stat.Store.RTS
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ldy #0
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.1 lda DEV.FIFO,y
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sta (ZPPtr1),y fill pathname buffer
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iny
cpy #9
bne .1
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lda IO.hFD
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jsr MATH32.AToHexAX
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sta (ZPPtr1),y
txa
iny
sta (ZPPtr1),y
iny
lda #0
sta (ZPPtr1),y
bra K.MkNod.I
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*/--------------------------------------
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* # MkNod
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* Create a special or ordinary file.
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* (CDEV, BDEV, DSOCKS, SSOCK, PIPE)
* ## C
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* `hFILE mknod(const char *pathname, int mode, hFD fd);`
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* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
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* `>PUSHB fd`
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* `>SYSCALL mknod`
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* ## RETURN VALUE
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* CC = OK, CS = ERROR
* A = hFILE
*\--------------------------------------
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K.MkNod >PULLB IO.hFD
jsr STAT.PullPathAndMode
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K.MkNod.I ldx #2
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.1 lda Nod.Table.hPath-2,x
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beq .2
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inx
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cpx #K.Nod.MAX+2
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bne .1
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lda #E.OOH
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* sec
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rts
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.2 stx .3+1 Store hFILE
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>LDYA ZPPtr1
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>SYSCALL2 StrDup
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bcs .9
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txa
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.3 ldx #$ff SELF MODIFIED
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sta Nod.Table.hPath-2,x
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lda IO.hFD
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sta Nod.Table.hFD-2,x
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txa hNODE
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clc
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.9 rts
*/--------------------------------------
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* # pipe
* ## C
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* `hFD pipe(int size);`
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* ## ASM
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* `>LDYA size`
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* `>SYSCALL pipe`
* ## RETURN VALUE
* CC = OK, CS = ERROR
* A = hFD
*\--------------------------------------
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K.Pipe sta .1+1 SIZE HI
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>SYSCALL2 NewStkObj
bcs .99
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stx .8+1 save PIPE buffer
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ldx #2
jsr IO.MkFD
bcs .9
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.1 lda #$ff SELF MODIFIED
ldy #S.FD.PIPE.Free+1
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sta (pFD),y
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ldy #S.FD.PIPE.Size+1
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sta (pFD),y
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ldy #S.FD.PIPE.hMem
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.8 lda #$ff Self Modified
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sta (pFD),y
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txa hFD
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* clc
rts
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.9 pha save error code
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lda .8+1 get back PIPE buffer
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>SYSCALL2 FreeStkObj
pla
sec
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.99
K.Pipe.RTS rts
*--------------------------------------
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STAT.PullPathAndMode
>PULLW K.S.STAT+S.STAT.MODE
>PULLW ZPPtr1 pathname
rts
*--------------------------------------
MAN
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SAVE usr/src/sys/kernel.s.stat
LOAD usr/src/sys/kernel.s
ASM