mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-26 13:49:18 +00:00
472 lines
9.1 KiB
Plaintext
472 lines
9.1 KiB
Plaintext
NEW
|
||
AUTO 3,1
|
||
*/--------------------------------------
|
||
* # OpenDir
|
||
* ## C
|
||
* `int hDIR opendir (const char * dirpath);`
|
||
* ## ASM
|
||
* `>PUSHW dirpath`
|
||
* `>SYSCALL opendir`
|
||
* ## RETURN VALUE
|
||
* CC : success
|
||
* A = hDIR
|
||
* CS : error
|
||
* A = EC
|
||
*\--------------------------------------
|
||
K.OpenDir jsr PFT.CheckPath0
|
||
bcs K.ReadDir.RTS
|
||
|
||
inc pStack
|
||
inc pStack
|
||
|
||
ldx #1
|
||
jsr IO.MkFD
|
||
bcs K.ReadDir.RTS
|
||
|
||
lda K.Buf256+1 One char ("/") ?
|
||
beq .8 No, Go open dir....
|
||
|
||
>MLICALL MLIGETFILEINFO
|
||
bcs .98 file/dir does not exists....quit
|
||
lda K.MLI.PARAMS+4
|
||
cmp #$0F Directory ?
|
||
bne .98
|
||
jsr IO.MLI.OPEN
|
||
bcs .98
|
||
|
||
.8 lda IO.hFD
|
||
jsr STDIO.NewHFile
|
||
|
||
bcc K.ReadDir.RTS
|
||
.98 jmp IO.OPEN.ERR
|
||
*/--------------------------------------
|
||
* # ReadDir
|
||
* ## C
|
||
* `int readdir (int hDIR, S.DIRENT * dirent);`
|
||
* ## ASM
|
||
* `>PUSHW dirent`
|
||
* `lda hDIR`
|
||
* `>SYSCALL readdir`
|
||
* ## RETURN VALUE
|
||
* CC : success
|
||
* X = hDIRENT
|
||
* Y,A = PTR to S.DIRENT
|
||
* CS : error
|
||
* A = EC
|
||
* note : A = 0 means no more entry
|
||
*\--------------------------------------
|
||
.DUMMY
|
||
.OR ZPTMP 8 Bytes
|
||
K.ReadDir.hMem .BS 1
|
||
K.ReadDir.BufSize .BS 2
|
||
K.ReadDir.ECIB .BS 1
|
||
K.ReadDir.EL .BS 1
|
||
K.ReadDir.EPB .BS 1
|
||
K.ReadDir.EC .BS 2
|
||
.ED
|
||
*--------------------------------------
|
||
K.ReadDir jsr PFT.CheckNodeA
|
||
bcs K.ReadDir.RTS
|
||
ldy #S.FD.REG.REF
|
||
lda (pFD),y
|
||
beq K.ReadDir.ROOT
|
||
jmp K.ReadDir.DIR
|
||
K.ReadDir.NoMore
|
||
lda #MLI.E.EOF
|
||
sec
|
||
K.ReadDir.RTS rts
|
||
*--------------------------------------
|
||
K.ReadDir.ROOT
|
||
ldy #S.FD.DIR.FC did we already returned something ?
|
||
lda (pFD),y
|
||
bne K.ReadDir.NoMore
|
||
|
||
stz K.MLI.PARAMS+1 All Volumes
|
||
>LDYAI K.Buf256
|
||
>STYA K.MLI.PARAMS+2
|
||
>STYA ZPPtr2
|
||
>MLICALL MLIONLINE
|
||
bcs K.ReadDir.RTS
|
||
|
||
>LDYAI 16*16+16*S.STAT+1 16 (Vols+Stat) + \0
|
||
jsr K.ReadDir.GetBufYA
|
||
bcs K.ReadDir.RTS
|
||
|
||
lda #16
|
||
sta K.ReadDir.EC
|
||
|
||
.1 lda (ZPPtr2)
|
||
and #$0F
|
||
beq .6
|
||
|
||
tax
|
||
inc
|
||
sta K.MLI.PATH
|
||
lda #'/'
|
||
sta K.MLI.PATH+1
|
||
ldy #1
|
||
|
||
.2 lda (ZPPtr2),y
|
||
sta K.MLI.PATH+1,y
|
||
jsr K.ReadDir.AddToBuf
|
||
iny
|
||
dex
|
||
bne .2
|
||
|
||
txa Add ending 0 for C String
|
||
jsr K.ReadDir.AddToBuf
|
||
|
||
jsr SHARED.ClrStat
|
||
|
||
lda /S.STAT.MODE.BDEV
|
||
sta K.S.STAT+S.STAT.MODE+1
|
||
|
||
lda (ZPPtr2)
|
||
asl DRIVE in Carry
|
||
pha
|
||
lda #0
|
||
rol
|
||
inc
|
||
sta K.S.STAT+S.STAT.P.DRIVE
|
||
pla
|
||
lsr CC
|
||
lsr
|
||
lsr
|
||
lsr
|
||
lsr
|
||
sta K.S.STAT+S.STAT.P.SLOT
|
||
|
||
>LDYAI K.MLI.PATH
|
||
>STYA K.MLI.PARAMS+1
|
||
>MLICALL MLIGETFILEINFO
|
||
sta K.S.STAT+S.STAT.P.DEVSTATUS
|
||
|
||
bcs .3
|
||
|
||
>LDYA K.MLI.PARAMS+5 AUXTYPE=TOTAL BLOCKS
|
||
>STYA K.S.STAT+S.STAT.P.DEVBLOCKS
|
||
>LDYA K.MLI.PARAMS+8
|
||
>STYA K.S.STAT+S.STAT.BLOCKS
|
||
|
||
.3 jsr K.ReadDir.AddStat
|
||
|
||
.6 lda ZPPtr2
|
||
clc
|
||
adc #16
|
||
sta ZPPtr2
|
||
bcc .7
|
||
inc ZPPtr2+1
|
||
|
||
.7 dec K.ReadDir.EC
|
||
bne .1
|
||
|
||
* lda #0 done by S.MEM.F.INIT0
|
||
* sta (ZPPtr4) Ending 0
|
||
|
||
ldy #S.FD.DIR.FC
|
||
lda #16
|
||
sta (pFD),y Flag that we returned somthing for next time
|
||
jmp K.ReadDir.EXIT
|
||
*--------------------------------------
|
||
K.ReadDir.DIR sta K.MLI.PARAMS+1 A=#S.DIR.PRODOS.REF
|
||
|
||
>LDYAI 512 Get a 512 bytes buffer for reading dir...
|
||
jsr K.GetMem
|
||
bcs .99
|
||
|
||
stx K.ReadDir.hMem
|
||
>STYA K.MLI.PARAMS+2 For reading
|
||
pha
|
||
tya
|
||
* clc CC from K.GetMem
|
||
adc #4 Skip 4 bytes linked list
|
||
sta ZPPtr2 PTR to Buffer for PASS #1
|
||
sta ZPPtr3 PTR to Buffer for PASS #2
|
||
pla
|
||
adc #0
|
||
sta ZPPtr2+1 PTR to Buffer for PASS #1
|
||
sta ZPPtr3+1 PTR to Buffer for PASS #2
|
||
|
||
>LDYAI 512
|
||
>STYA K.MLI.PARAMS+4
|
||
>MLICALL MLIREAD Read A block from directory
|
||
bcs .98
|
||
|
||
ldy #S.FD.DIR.EL Check if first run....
|
||
lda (pFD),y
|
||
bne .2 no, we have all we need....
|
||
|
||
ldy #$1f+3
|
||
ldx #3
|
||
|
||
.1 lda (ZPPtr2),y Get K.ReadDir.EL.... From Block
|
||
sta K.ReadDir.EL,x
|
||
dey
|
||
dex
|
||
bpl .1
|
||
|
||
inc K.ReadDir.EC Add one to EC because we include VOL/DIR Header
|
||
bne .4
|
||
|
||
inc K.ReadDir.EC+1 ...and ProDOS does NOT include header entry in EC
|
||
bra .4
|
||
|
||
.98 jsr K.ReadDir.CLN
|
||
sec
|
||
.99 rts
|
||
|
||
.2 ldy #S.FD.DIR.EL+3
|
||
ldx #3
|
||
|
||
.3 lda (pFD),y get this session parameters from S.DIR
|
||
sta K.ReadDir.EL,x
|
||
dey
|
||
dex
|
||
bpl .3
|
||
|
||
.4 lda K.ReadDir.EC
|
||
eor #$ff
|
||
tax
|
||
|
||
lda K.ReadDir.EC+1
|
||
eor #$ff
|
||
tay
|
||
|
||
inx Any entry remaining ?
|
||
bne .5
|
||
|
||
iny
|
||
beq .98 no...exit
|
||
* pass #1 compute BufSize...
|
||
.5 lda K.ReadDir.EPB
|
||
sta K.ReadDir.ECIB
|
||
|
||
lda #1 For Ending 0
|
||
sta K.ReadDir.BufSize
|
||
stz K.ReadDir.BufSize+1
|
||
|
||
K.ReadDir.DIR1 lda (ZPPtr2) X = EntryCount In This Block
|
||
beq .7 Free slot....goto next
|
||
|
||
and #$F0 get storage_type
|
||
cmp #$F0 Volume header ?
|
||
beq .1
|
||
|
||
cmp #$E0 directory header ?
|
||
beq .2
|
||
|
||
lda (ZPPtr2) regular DIR or File, get LEN
|
||
and #$F compute filename len
|
||
sec add "#<filename>" + S.STAT
|
||
adc #S.STAT
|
||
.HS 2C bit abs
|
||
.1 lda #2+S.STAT add "1." string + S.STAT
|
||
.HS 2C bit abs
|
||
.2 lda #2+S.STAT+3+S.STAT add "1." + S.STAT + "2.." + S.STAT...
|
||
|
||
clc
|
||
adc K.ReadDir.BufSize
|
||
sta K.ReadDir.BufSize
|
||
bcc .3
|
||
|
||
inc K.ReadDir.BufSize+1
|
||
.3 inx
|
||
bne .7
|
||
|
||
iny
|
||
bra K.ReadDir.DIR2 we reached last entry in whole DIR
|
||
|
||
.7 lda ZPPtr2
|
||
clc
|
||
adc K.ReadDir.EL
|
||
sta ZPPtr2
|
||
bcc .8
|
||
|
||
inc ZPPtr2+1
|
||
|
||
.8 dec K.ReadDir.ECIB
|
||
bne K.ReadDir.DIR1
|
||
* pass #2 Fill Buffer...(ZPPtr1 & Ptr2 can now be trashed)
|
||
K.ReadDir.DIR2 jsr K.ReadDir.GetBuf
|
||
bcs .9
|
||
|
||
lda K.ReadDir.EPB
|
||
sta K.ReadDir.ECIB
|
||
|
||
.1 lda (ZPPtr3)
|
||
beq .7 Empty slot, skip
|
||
|
||
and #$F0
|
||
cmp #$F0 Vol Header ?
|
||
bne .2
|
||
|
||
jsr K.ReadDir.ADD.
|
||
bra .4
|
||
|
||
.2 cmp #$E0 Dir Header ?
|
||
bne .3
|
||
|
||
jsr K.ReadDir.ADD.
|
||
jsr SHARED.DirEnt2Stat
|
||
jsr K.ReadDir.AddStat
|
||
jsr K.ReadDir.ADD..
|
||
bra .4
|
||
|
||
.3 jsr K.ReadDir.AddFNToBuf
|
||
|
||
.4 jsr SHARED.DirEnt2Stat
|
||
jsr K.ReadDir.AddStat
|
||
|
||
lda K.ReadDir.EC decrease global counter...
|
||
sec
|
||
sbc #1
|
||
sta K.ReadDir.EC
|
||
lda K.ReadDir.EC+1
|
||
sbc #0
|
||
sta K.ReadDir.EC+1
|
||
ora K.ReadDir.EC
|
||
beq .8 0! no more files in DIR
|
||
|
||
.7 dec K.ReadDir.ECIB 0! no more file in block
|
||
beq .8
|
||
|
||
lda ZPPtr3
|
||
clc
|
||
adc K.ReadDir.EL
|
||
sta ZPPtr3
|
||
bcc .1
|
||
|
||
inc ZPPtr3+1
|
||
bra .1
|
||
|
||
.9 jsr K.ReadDir.CLN
|
||
sec
|
||
rts
|
||
|
||
.8 ldx #3
|
||
ldy #S.FD.DIR.EL+3
|
||
|
||
.81 lda K.ReadDir.EL,x Store back this session prameters to S.DIR
|
||
sta (pFD),y
|
||
dey
|
||
dex
|
||
bpl .81
|
||
|
||
jsr K.ReadDir.CLN Discard READBUFFER
|
||
|
||
K.ReadDir.EXIT ldx #$ff Self Modified : hDIRENT
|
||
txa
|
||
jmp K.GetMemPtr
|
||
*--------------------------------------
|
||
K.ReadDir.CLN pha
|
||
lda K.ReadDir.hMem
|
||
jsr K.FreeMem
|
||
pla
|
||
rts
|
||
*--------------------------------------
|
||
K.ReadDir.GetBuf
|
||
>LDYA K.ReadDir.BufSize Get a BufSize bytes buffer for storing results
|
||
K.ReadDir.GetBufYA
|
||
jsr K.GetMem0 make sure 0 filled
|
||
bcs .9
|
||
stx K.ReadDir.EXIT+1
|
||
>STYA ZPPtr4
|
||
.9 rts
|
||
*--------------------------------------
|
||
K.ReadDir.ADD. ldx #1 filename="1."
|
||
.HS 2C bit abs
|
||
K.ReadDir.ADD..
|
||
ldx #2 filename="2.."
|
||
lda #'.'
|
||
|
||
.1 jsr K.ReadDir.AddToBuf Add X dot(s)
|
||
dex
|
||
bne .1
|
||
|
||
txa
|
||
jmp K.ReadDir.AddToBuf Add Ending 0
|
||
*--------------------------------------
|
||
K.ReadDir.AddFNToBuf
|
||
ldy #$1C version/min_version for lowercase bitmap
|
||
lda (ZPPtr3),y check bxxxxxxx.xxxxxxxx...
|
||
bpl .7 not set, no lowercase bitmap present
|
||
|
||
pha
|
||
iny
|
||
lda (ZPPtr3),y
|
||
pha
|
||
|
||
lda #$1
|
||
sta .2+1
|
||
|
||
ldy #15
|
||
|
||
.1 pla
|
||
.2 bit #$ff
|
||
pha
|
||
beq .3
|
||
|
||
lda (ZPPtr3),y
|
||
ora #$20 convert a-z to A-Z adding from $4x to $6x
|
||
sta (ZPPtr3),y
|
||
|
||
.3 asl .2+1
|
||
bne .4
|
||
|
||
rol .2+1
|
||
pla
|
||
|
||
.4 dey
|
||
bne .1
|
||
|
||
pla
|
||
.7 lda (ZPPtr3)
|
||
and #$0F get filename len
|
||
tax
|
||
ldy #1
|
||
|
||
.8 lda (ZPPtr3),y
|
||
jsr K.ReadDir.AddToBuf
|
||
iny
|
||
dex
|
||
bne .8
|
||
|
||
txa
|
||
* jsr K.ReadDir.AddToBuf
|
||
|
||
* rts
|
||
*--------------------------------------
|
||
K.ReadDir.AddToBuf
|
||
sta (ZPPtr4)
|
||
inc ZPPtr4
|
||
bne .8
|
||
inc ZPPtr4+1
|
||
.8 rts
|
||
*--------------------------------------
|
||
K.ReadDir.AddStat
|
||
ldy #0
|
||
|
||
.1 lda K.S.STAT,y
|
||
jsr K.ReadDir.AddToBuf
|
||
iny
|
||
cpy #S.STAT
|
||
bne .1
|
||
|
||
rts
|
||
*/-------------------------------------
|
||
* # CloseDir
|
||
* ## C
|
||
* `void closedir(hDIR);`
|
||
* ## ASM
|
||
* `lda hDIR`
|
||
* `>SYSCALL closedir`
|
||
* ## RETURN VALUE
|
||
* none, always succeed.
|
||
*\-------------------------------------
|
||
*K.CloseDir .EQ K.FClose
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE USR/SRC/SYS/KERNEL.S.DIRENT
|
||
LOAD USR/SRC/SYS/KERNEL.S
|
||
ASM
|