A2osX/SYS/KERNEL.S.DIR.txt

553 lines
11 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
* In :
* X = #SYSCall
* Y,A = PATH (PSTR)
* Out :
* CC : Y,A = PTR to S.DIR
* CS : A = EC
*--------------------------------------
K.OPENDIRYA jsr PFT.CheckPathYA
>STYA ZPQuickPtr2
>STYA MLICALL.PARAMS+1 For MLIOPEN
>PUSHWI S.DIR.PRODOS
>PUSHBI S.MEM.F.INIT0
jsr K.GetMem
bcs .9
>STYA ZPQuickPtr1
stx K.OPENDIRYA.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 >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.OPENDIRYA.hDIR
clc
rts
.98 pha save MLI error
jsr K.CLOSEDIRA.1
pla get back MLI error
sec
.99 rts
*--------------------------------------
K.OPENDIRYA.hDIR .BS 1
*--------------------------------------
* In :
* A = hDIR
* Out :
* CC : X = hDIREND, Y,A = PTR to S.DIRENT
* CS : A = EC, A = 0 : no more entry
*--------------------------------------
K.READDIRA.hMem .BS 1
K.READDIRA.hDIRENT .BS 1
K.READDIRA.BufSize .BS 2
K.READDIRA.EL .BS 1
K.READDIRA.EBP .BS 1
K.READDIRA.EC .BS 2
K.READDIRA.ECIB .BS 1
K.READDIRA.EC2Return .BS 1
*--------------------------------------
K.READDIRA jsr PFT.CheckDirA
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
>PUSHWI 256 Get a 256 bytes buffer for ONLINE call...
>PUSHBI 0
jsr K.GetMem
bcs .99
stx K.READDIRA.hMem
>STYA MLICALL.PARAMS+2
>STYA ZPQuickPtr2 For PASS #1 & #2
>MLICALL MLIONLINE
bcc .10
.98 jsr K.READDIRA.CLN
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 .98
.3 lda (ZPQuickPtr2)
and #$0F
beq .88
tax
>LDYAI ZPQuickPtr4 Store actual PTR for MLIGETFILEINFO
>STYA MLICALL.PARAMS+1
txa
inc
jsr K.READDIRA.AddToBuf
lda #'/'
jsr K.READDIRA.AddToBuf
ldy #1
.4 lda (ZPQuickPtr2),y
jsr K.READDIRA.AddToBuf
iny
dex
bne .4
>MLICALL MLIGETFILEINFO
bcs .80
.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
jsr K.READDIRA.CLN Discard ONLINE BUFFER
lda K.READDIRA.hDIRENT
tax
jmp K.GetMemPtrA
*--------------------------------------
K.READDIRA.DIR ldy #S.DIR.PRODOS.REF
lda (ZPQuickPtr1),y
sta MLICALL.PARAMS+1
>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 #$1f+3
ldx #3
.1 lda (ZPQuickPtr2),y Get K.READDIRA.EL.... From Block
sta K.READDIRA.EL,x
dey
dex
bpl .1
bra .4
.98 jsr K.READDIRA.CLN
sec
.99 rts
.2 ldy #S.DIR.PRODOS.EL+3
ldx #3
.3 lda (ZPQuickPtr1),y get this session parameters from S.DIR
sta K.READDIRA.EL,x
dey
dex
bpl .3
.4 ldx K.READDIRA.EC
cpx K.READDIRA.EBP
lda K.READDIRA.EC+1
sbc #0
bcc .5 We have less than EPB to read
ldx K.READDIRA.EBP
.5 stx K.READDIRA.ECIB
stz K.READDIRA.EC2Return
lda #1 For Ending 0
sta K.READDIRA.BufSize
stz K.READDIRA.BufSize+1
* pass #1 compute BufSize.....
K.READDIRA.DIR1 lda (ZPQuickPtr2) X = EntryCount In This Block
beq .7 Free slot....goto next
tay save LEN
and #$F0 get storage_type
cmp #$F0 Volume header ?
beq .1
cmp #$E0 directory header ?
beq .2
inc K.READDIRA.EC2Return regular DIR or File....
tya
and #$F get filename len
sec add "#<filename>" + S.STAT
adc #S.STAT
.HS 2C bit abs
.1 lda #2+S.STAT add "1." string + S.STAT
.HS 2C bit abs
.2 lda #2+S.STAT+3+S.STAT add "1." + S.STAT + "2.." + S.STAT...
clc
adc K.READDIRA.BufSize
sta K.READDIRA.BufSize
bcc .7
inc K.READDIRA.BufSize+1
.7 lda ZPQuickPtr2
clc
adc K.READDIRA.EL
sta ZPQuickPtr2
bcc .8
inc ZPQuickPtr2+1
.8 dex
bne K.READDIRA.DIR1
* pass #2 Fill Buffer...
K.READDIRA.DIR2 jsr K.READDIRA.GetBuf
bcs .98
ldy #S.DIR.PRODOS.EL Check if first run....
lda (ZPQuickPtr1),y
bne .73
lda (ZPQuickPtr3)
and #$F0
cmp #$F0 Vol Header ?
bne .72
jsr K.READDIRA.ADD.
bra .78
.72 cmp #$E0 Dir Header ?
bne .73
jsr K.READDIRA.ADD.
jsr K.READDIRA.ADD..
bra .78
.73 lda K.READDIRA.EC
sec
sbc #1
sta K.READDIRA.EC
bcs .74
lda K.READDIRA.EC+1
sbc #0
sta K.READDIRA.EC+1 CC, we reached $ffff
bcc .80 no more file to list...
.74 lda (ZPQuickPtr3)
beq .78
and #$F0
cmp #$D0 Directory ?
bne .75
jsr K.READDIRA.ADDD
bra .78
.75 jsr K.READDIRA.ADDF
.78 lda ZPQuickPtr3
clc
adc K.READDIRA.EL
sta ZPQuickPtr3
bcc .79
inc ZPQuickPtr3+1
.79 dec K.READDIRA.ECIB
bne .72
.80
* lda #0 S.MEM.F.INIT0 already did this
* sta (ZPQuickPtr4) Ending 0
ldx #3
ldy #S.DIR.PRODOS.EL+3
.8 lda K.READDIRA.EL,x Store back this session prameters to S.DIR
sta (ZPQuickPtr1),y
dey
dex
bpl .8
jsr K.READDIRA.CLN Discard READBUFFER
lda K.READDIRA.hDIRENT
tax
jmp K.GetMemPtrA
.98 jsr K.READDIRA.CLN
sec
rts
*--------------------------------------
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. lda #1
jsr K.READDIRA.AddToBuf
lda #'.' filename="1."
jsr K.READDIRA.AddToBuf
jsr K.READDIRA.ClrStat
lda #$0F
sta KrnBuf256+S.STAT.PRODOS.TYPE
ldy #$25 total_blocks
lda (ZPQuickPtr3),y
sta KrnBuf256+S.STAT.BLOCKS
iny
lda (ZPQuickPtr3),y
sta KrnBuf256+S.STAT.BLOCKS+1
bra K.READDIRA.ADDSTAT
*--------------------------------------
K.READDIRA.ADD..
lda #2
jsr K.READDIRA.AddToBuf
lda #'.' filename="2.."
jsr K.READDIRA.AddToBuf
jsr K.READDIRA.AddToBuf
jsr K.READDIRA.ClrStat
lda #$0F
sta KrnBuf256+S.STAT.PRODOS.TYPE
bra K.READDIRA.ADDSTAT
*--------------------------------------
K.READDIRA.ADDD jsr K.READDIRA.AddFNToBuf
jsr K.READDIRA.ClrStat
lda #$0F
sta KrnBuf256+S.STAT.PRODOS.TYPE
bra K.READDIRA.ADDSTAT
*--------------------------------------
K.READDIRA.ADDF jsr K.READDIRA.AddFNToBuf
jsr K.READDIRA.ClrStat
ldy #$10 type
lda (ZPQuickPtr3),y
sta KrnBuf256+S.STAT.PRODOS.TYPE
ldy #$1F auxtype
lda (ZPQuickPtr3),y
sta KrnBuf256+S.STAT.PRODOS.AUXTYPE
iny
lda (ZPQuickPtr3),y
sta KrnBuf256+S.STAT.PRODOS.AUXTYPE+1
*--------------------------------------
K.READDIRA.AddStat
ldy #S.STAT-1
.1 lda KrnBuf256,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 KrnBuf256,x
dey
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
*--------------------------------------
ldy #S.STAT.BLKSIZE+1
lda #2 Block size is $200 for ProDOS
sta (ZPQuickPtr3),y
*--------------------------------------
* In :
* A = hDIR
*--------------------------------------
K.CLOSEDIRA jsr PFT.CheckDirA
pha
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 pla
jsr K.FreeMemA
clc
rts
*--------------------------------------
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