A2osX/SYS/KERNEL.S.DIR.txt

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*/--------------------------------------
* #OpenDirYA
* ##In:
* Y,A = PATH (PSTR)
* ##Out:
* CC : success
* A = hDIR
* CS : error
* A = EC
*\--------------------------------------
K.OpenDirYA jsr PFT.CheckPathYA
>STYA ZPQuickPtr2
>STYA MLICALL.PARAMS+1 For GETFILEINFO,MLIOPEN
>PUSHWI S.DIR.PRODOS
>PUSHBI S.MEM.F.INIT0
jsr K.GetMem
bcs .9
>STYA ZPQuickPtr1
stx K.ReadDirA.hDir
lda (ZPQuickPtr2)
cmp #1 One char ?
bne .7 No, Go open dir....
tay Y=1
lda (ZPQuickPtr2),y
cmp #'/' Root required ?
beq .8 Yes, Go for ONLINE Call (S.DIR.PRODOS.REF=0)
lda #SYSMGR.ERRSYN
sec
.9 rts
.7 >MLICALL MLIGETFILEINFO
bcs .98 file/dir does not exists....quit
lda MLICALL.PARAMS+4
cmp #$0F Directory ?
bne .98
>PUSHWI 1024 get a ProDOS IOBUF
>PUSHBI S.MEM.F.ALIGN+S.MEM.F.NOMOVE
jsr K.GetMem
bcs .98
>STYA MLICALL.PARAMS+3 Save Ptr to IOBUF for MLIOPEN call
txa
ldy #S.DIR.PRODOS.IOBUF
sta (ZPQuickPtr1),y
>MLICALL MLIOPEN
bcs .98
lda MLICALL.PARAMS+5 get ref_num
ldy #S.DIR.PRODOS.REF
sta (ZPQuickPtr1),y
.8 lda K.ReadDirA.hDir
clc
rts
.98 pha save MLI error
jsr K.CloseDirA.1
pla get back MLI error
sec
.99 rts
*/--------------------------------------
* #ReadDirA
* ##In:
* A = hDIR
* ##Out:
* CC : success
* X = hDIRENT
* Y,A = PTR to S.DIRENT
* CS : error
* A = EC
* note : A = 0 means no more entry
*\--------------------------------------
K.ReadDirA.hDir .BS 1
K.ReadDirA.hMem .BS 1
K.ReadDirA.hDIRENT .BS 1
K.ReadDirA.BufSize .BS 2
K.ReadDirA.ECIB .BS 1
*--S.DIR Cache ------------------------
K.ReadDirA.EL .BS 1
K.ReadDirA.EPB .BS 1
K.ReadDirA.EC .BS 2
*--------------------------------------
K.ReadDirA jsr PFT.CheckDirA
sta K.ReadDirA.hDir
jsr K.GetMemPtrA
>STYA ZPQuickPtr1
ldy #S.DIR.F
lda (ZPQuickPtr1),y
and #S.DIR.F.NOMORE
bne .9
ldy #S.DIR.PRODOS.REF
lda (ZPQuickPtr1),y
beq K.ReadDirA.ROOT
jmp K.ReadDirA.DIR
.9 lda #0
sec CS,A=0 no more entry
rts
*--------------------------------------
K.ReadDirA.ROOT stz MLICALL.PARAMS+1 All Volumes
>LDYAI KrnBuf256
>STYA MLICALL.PARAMS+2
>STYA ZPQuickPtr2
>MLICALL MLIONLINE
bcc .10
sec
.99 rts
* pass #1 compute BufSize.....
.10 lda #1 +1 for Ending 0
sta K.ReadDirA.BufSize
stz K.ReadDirA.BufSize+1
stz K.ReadDirA.EC
ldy #0
.1 lda (ZPQuickPtr2),y
and #$0F
beq .2
inc K.ReadDirA.EC increase entry count
sec Add Filelen +1
adc #S.STAT will ends with CC
adc K.ReadDirA.BufSize
sta K.ReadDirA.BufSize
bcc .2
inc K.ReadDirA.BufSize+1
.2 tya
clc
adc #16
tay
bcc .1 loop until 256 bytes scanned
* pass #2 Fill Buffer...
jsr K.ReadDirA.GetBuf
bcs .99
.3 lda (ZPQuickPtr2)
and #$0F
beq .88
tax
jsr K.ReadDirA.AddToBuf
inc
sta KrnOut256
lda #'/'
sta KrnOut256+1
ldy #1
.4 lda (ZPQuickPtr2),y
sta KrnOut256+1,y
jsr K.ReadDirA.AddToBuf
iny
dex
bne .4
jsr K.ReadDirA.ClrStat
lda (ZPQuickPtr2)
asl DRIVE in Carry
pha
lda #0
rol
inc
sta KrnSTAT+S.STAT.PRODOS.DRIVE
pla
lsr CC
lsr
lsr
lsr
lsr
sta KrnSTAT+S.STAT.PRODOS.SLOT
>LDYAI KrnOut256
>STYA MLICALL.PARAMS+1
>MLICALL MLIGETFILEINFO
sta KrnSTAT+S.STAT.PRODOS.DEVSTATUS
bcs .80
>LDYA MLICALL.PARAMS+5 AUXTYPE=TOTAL BLOCKS
>STYA KrnSTAT+S.STAT.PRODOS.DEVBLOCKS
>LDYA MLICALL.PARAMS+8
>STYA KrnSTAT+S.STAT.BLOCKS
.80 jsr K.ReadDirA.ADDSTAT
.88 lda ZPQuickPtr2
clc
adc #16
sta ZPQuickPtr2
bcc .89
inc ZPQuickPtr2+1
.89 dec K.ReadDirA.EC
bne .3
* lda #0 done by S.MEM.F.INIT0
* sta (ZPQuickPtr4) Ending 0
ldy #S.DIR.F
lda #S.DIR.F.NOMORE
sta (ZPQuickPtr1),y
lda K.ReadDirA.hDIRENT
tax
jmp K.GetMemPtrA
*--------------------------------------
K.ReadDirA.DIR sta MLICALL.PARAMS+1 A=#S.DIR.PRODOS.REF
>PUSHWI 512 Get a 512 bytes buffer for reading dir...
>PUSHBI 0
jsr K.GetMem
bcs .99
stx K.ReadDirA.hMem
>STYA MLICALL.PARAMS+2 For reading
pha
tya
* clc CC from K.GetMem
adc #4 Skip 4 bytes linked list
sta ZPQuickPtr2 PTR to Buffer for PASS #1
sta ZPQuickPtr3 PTR to Buffer for PASS #2
pla
adc #0
sta ZPQuickPtr2+1 PTR to Buffer for PASS #1
sta ZPQuickPtr3+1 PTR to Buffer for PASS #2
>LDYAI 512
>STYA MLICALL.PARAMS+4
>MLICALL MLIREAD Read A block from directory
bcs .98
ldy #S.DIR.PRODOS.EL Check if first run....
lda (ZPQuickPtr1),y
bne .2 no, we have all we need....
ldy #$1f+3
ldx #3
.1 lda (ZPQuickPtr2),y Get K.ReadDirA.EL.... From Block
sta K.ReadDirA.EL,x
dey
dex
bpl .1
inc K.ReadDirA.EC Add one to EC because we include VOL/DIR Header
bne .4
inc K.ReadDirA.EC+1 ...and ProDOS does NOT include header entry in EC
bra .4
.98 jsr K.ReadDirA.CLN
sec
.99 rts
.2 ldy #S.DIR.PRODOS.EL+3
ldx #3
.3 lda (ZPQuickPtr1),y get this session parameters from S.DIR
sta K.ReadDirA.EL,x
dey
dex
bpl .3
.4 lda K.ReadDirA.EC
eor #$ff
tax
lda K.ReadDirA.EC+1
eor #$ff
tay
inx Any entry remaining ?
bne .5
iny
beq .98 no...exit
* pass #1 compute BufSize...
.5 lda K.ReadDirA.EPB
sta K.ReadDirA.ECIB
lda #1 For Ending 0
sta K.ReadDirA.BufSize
stz K.ReadDirA.BufSize+1
K.ReadDirA.DIR1 lda (ZPQuickPtr2) X = EntryCount In This Block
beq .7 Free slot....goto next
and #$F0 get storage_type
cmp #$F0 Volume header ?
beq .1
cmp #$E0 directory header ?
beq .2
lda (ZPQuickPtr2) regular DIR or File, get LEN
and #$F compute filename len
sec add "#<filename>" + S.STAT
adc #S.STAT
.HS 2C bit abs
.1 lda #2+S.STAT add "1." string + S.STAT
.HS 2C bit abs
.2 lda #2+S.STAT+3+S.STAT add "1." + S.STAT + "2.." + S.STAT...
clc
adc K.ReadDirA.BufSize
sta K.ReadDirA.BufSize
bcc .3
inc K.ReadDirA.BufSize+1
.3 inx
bne .7
iny
bra K.ReadDirA.DIR2 we reached last entry in whole DIR
.7 lda ZPQuickPtr2
clc
adc K.ReadDirA.EL
sta ZPQuickPtr2
bcc .8
inc ZPQuickPtr2+1
.8 dec K.ReadDirA.ECIB
bne K.ReadDirA.DIR1
* pass #2 Fill Buffer...(ZPQuickPtr1 & Ptr2 can now be trashed)
K.ReadDirA.DIR2 jsr K.ReadDirA.GetBuf
bcs .9
lda K.ReadDirA.EPB
sta K.ReadDirA.ECIB
.1 lda (ZPQuickPtr3)
beq .7 Empty slot, skip
and #$F0
cmp #$F0 Vol Header ?
bne .2
jsr K.ReadDirA.ADD.
bra .6
.2 cmp #$E0 Dir Header ?
bne .3
jsr K.ReadDirA.ADD.
jsr K.ReadDirA.ADD..
bra .6
.3 jsr K.ReadDirA.AddFNToBuf
jsr K.ReadDirA.ClrStat
lda (ZPQuickPtr3)
and #$F0
cmp #$D0 Directory ?
bne .5
jsr K.ReadDirA.ADDD
bra .6
.5 jsr K.ReadDirA.ADDF
.6 lda K.ReadDirA.EC decrease global counter...
sec
sbc #1
sta K.ReadDirA.EC
lda K.ReadDirA.EC+1
sbc #0
sta K.ReadDirA.EC+1
ora K.ReadDirA.EC
beq .8 0! no more files in DIR
.7 dec K.ReadDirA.ECIB 0! no more file in block
beq .8
lda ZPQuickPtr3
clc
adc K.ReadDirA.EL
sta ZPQuickPtr3
bcc .1
inc ZPQuickPtr3+1
bra .1
.9 jsr K.ReadDirA.CLN
sec
rts
.8
* lda #0 S.MEM.F.INIT0 already did this
* sta (ZPQuickPtr4) Ending 0
lda K.ReadDirA.hDir Restore ZPQuickPtr1 trashed by STR API calls
jsr K.GetMemPtrA
>STYA ZPQuickPtr1
ldx #3
ldy #S.DIR.PRODOS.EL+3
.81 lda K.ReadDirA.EL,x Store back this session prameters to S.DIR
sta (ZPQuickPtr1),y
dey
dex
bpl .81
jsr K.ReadDirA.CLN Discard READBUFFER
lda K.ReadDirA.hDIRENT
tax
jmp K.GetMemPtrA
*--------------------------------------
K.ReadDirA.CLN pha
lda K.ReadDirA.hMem
jsr K.FreeMemA
pla
rts
*--------------------------------------
K.ReadDirA.GetBuf
>PUSHW K.ReadDirA.BufSize Get a BufSize bytes buffer for storing results
>PUSHBI S.MEM.F.INIT0 make sure 0 filled
jsr K.GetMem
bcs .9
stx K.ReadDirA.hDIRENT
>STYA ZPQuickPtr4
.9 rts
*--------------------------------------
K.ReadDirA.ADD. ldx #1 filename="1."
.HS 2C bit abs
K.ReadDirA.ADD..
ldx #2 filename="2.."
txa
jsr K.ReadDirA.AddToBuf Add LEN
lda #'.'
.1 jsr K.ReadDirA.AddToBuf Add X dot(s)
dex
bne .1
jsr K.ReadDirA.ClrStat
* ldy #$25 total_blocks
* lda (ZPQuickPtr3),y
* sta KrnSTAT+S.STAT.BLOCKS
* iny
* lda (ZPQuickPtr3),y
* sta KrnSTAT+S.STAT.BLOCKS+1
*--------------------------------------
K.ReadDirA.ADDD lda #$0F
sta KrnSTAT+S.STAT.PRODOS.TYPE
lda /S.STAT.MODE.DIR
sta KrnSTAT+S.STAT.MODE+1
bra K.ReadDirA.AddAccess
*--------------------------------------
K.ReadDirA.ADDF lda /S.STAT.MODE.REG
sta KrnSTAT+S.STAT.MODE+1
ldx #ADDF.DST-ADDF.SRC
.1 ldy ADDF.SRC-1,x
lda (ZPQuickPtr3),y
ldy ADDF.DST-1,x
sta KrnSTAT,y
dex
bpl .1
*--------------------------------------
K.ReadDirA.AddAccess
ldy #$1E ProDOS Access
lda (ZPQuickPtr3),y
ldx #0
bit #$01 ProDOS R
beq .2
ldx #S.STAT.MODE.RO
.2 bit #$C2 ProDOS D,Rn,W
beq .3
txa
ora #S.STAT.MODE.XO+S.STAT.MODE.WO
.HS 89 bit imm to skip txa
.3 txa
sta KrnSTAT+S.STAT.MODE
*--------------------------------------
K.ReadDirA.AddTime
>PUSHWI KrnSTAT+S.STAT.CTIME
lda #$18 creation Date/time
jsr K.ReadDirA.ConvertTime
>PUSHWI KrnSTAT+S.STAT.MTIME
lda #$21 mod Date/time
jsr K.ReadDirA.ConvertTime
*--------------------------------------
K.ReadDirA.AddStat
ldy #S.STAT-1
.1 lda KrnSTAT,y
sta (ZPQuickPtr4),y
dey
bpl .1
lda ZPQuickPtr4
clc
adc #S.STAT
sta ZPQuickPtr4
bcc .8
inc ZPQuickPtr4+1
.8 rts
*--------------------------------------
K.ReadDirA.ClrStat
ldx #S.STAT-1
.1 stz KrnSTAT,x
dex
bpl .1
rts
*--------------------------------------
K.ReadDirA.AddFNToBuf
lda (ZPQuickPtr3)
and #$0F get filename len
tax
jsr K.ReadDirA.AddToBuf
ldy #1
.1 lda (ZPQuickPtr3),y
jsr K.ReadDirA.AddToBuf
iny
dex
bne .1
rts
*--------------------------------------
K.ReadDirA.AddToBuf
sta (ZPQuickPtr4)
inc ZPQuickPtr4
bne .8
inc ZPQuickPtr4+1
.8 rts
*--------------------------------------
K.ReadDirA.ConvertTime
clc
adc ZPQuickPtr3
tay
lda ZPQuickPtr3+1
adc #0
>PUSHYA
jmp K.PTime2Time Will destroy Ptr1 & Ptr2 !!!!
*--------------------------------------
ADDF.SRC .HS 1013141516171f20
ADDF.DST .DA #S.STAT.PRODOS.TYPE,#S.STAT.BLOCKS,#S.STAT.BLOCKS+1
.DA #S.STAT.SIZE,#S.STAT.SIZE+1,#S.STAT.SIZE+2
.DA #S.STAT.PRODOS.AUXTYPE,#S.STAT.PRODOS.AUXTYPE+1
*/-------------------------------------
* #CloseDirA
* ##In:
* A = hDIR
* ##Out:
* none, always succeed.
*\-------------------------------------
K.CloseDirA jsr PFT.CheckDirA
sta K.ReadDirA.hDir
jsr K.GetMemPtrA
>STYA ZPQuickPtr1
K.CloseDirA.1 ldy #S.DIR.PRODOS.REF
lda (ZPQuickPtr1),y
beq .1
sta MLICALL.PARAMS+1
>MLICALL MLICLOSE
.1 ldy #S.DIR.PRODOS.IOBUF
lda (ZPQuickPtr1),y
beq .2
jsr K.FreeMemA
.2 ldaK.ReadDirA.hDir
jmp K.FreeMemA
*/-------------------------------------
* #MKDirYA
* ##In:
* Y,A = DIR name
* ##Out:
* CC : success
* CS : error
* A = EC
*\-------------------------------------
K.MKDirYA jsr PFT.CheckPathYA
>STYA MLICALL.PARAMS+1
lda #S.FILEINFO.ACCESS.FULL
sta MLICALL.PARAMS+S.FILEINFO.ACCESS
lda #S.FILEINFO.TYPE.DIR
sta MLICALL.PARAMS+S.FILEINFO.TYPE
lda #S.FILEINFO.STORETYPE.DIR
sta MLICALL.PARAMS+S.FILEINFO.STORETYPE
>MLICALL MLICREATE
rts
*--------------------------------------
MAN
SAVE SYS/KERNEL.S.DIR
LOAD SYS/KERNEL.S
ASM