mirror of
https://github.com/A2osX/A2osX.git
synced 2025-02-20 15:29:07 +00:00
333 lines
6.3 KiB
Plaintext
333 lines
6.3 KiB
Plaintext
NEW
|
||
AUTO 3,1
|
||
.LIST OFF
|
||
.OP 65C02
|
||
.OR $2000
|
||
.TF ROOT/UNPAK
|
||
*--------------------------------------
|
||
.INB INC/MACROS.I
|
||
.INB INC/A2OSX.I
|
||
.INB INC/LIBPAK.I
|
||
*--------------------------------------
|
||
ZPPakHdrPtr .EQ ZPBIN
|
||
ZPPakDataPtr .EQ ZPBIN+2
|
||
ZPPakSrcPtr .EQ ZPBIN+4
|
||
|
||
*--------------------------------------
|
||
UNPAK.Mask .EQ ZPBIN+8
|
||
UNPAK.LastByte .EQ ZPBIN+9
|
||
UNPAK.Cnt .EQ ZPBIN+10
|
||
UNPAK.Ofs .EQ ZPBIN+12
|
||
UNPAK.BLOfs .EQ ZPBIN+14
|
||
*--------------------------------------
|
||
* File Header (16 Bytes)
|
||
*--------------------------------------
|
||
CS.START cld
|
||
jmp (.1,x)
|
||
.DA #$61 6502,Level 1 (65c02)
|
||
.DA #1 BIN Layout Version 1
|
||
.DA 0
|
||
.DA CS.END-CS.START CS
|
||
.DA DS.END-DS.START DS
|
||
.DA #64 SS
|
||
.DA #16 ZP
|
||
.DA 0
|
||
*--------------------------------------
|
||
* Relocation Table
|
||
*--------------------------------------
|
||
.1 .DA CS.INIT
|
||
.DA CS.RUN
|
||
.DA CS.DOEVENT
|
||
.DA CS.QUIT
|
||
L.MSG.USAGE .DA MSG.USAGE
|
||
L.MSG.DEBUG .DA MSG.DEBUG
|
||
L.MSG.UnpakErr .DA MSG.UnpakErr
|
||
L.MSG.DEBUG.S3 .DA MSG.DEBUG.S3
|
||
.DA 0
|
||
*--------------------------------------
|
||
CS.INIT clc
|
||
rts
|
||
*--------------------------------------
|
||
CS.RUN ldy #S.PS.ARGC
|
||
lda (pPs),y
|
||
bne CS.RUN.Pak
|
||
|
||
>PUSHBI 0
|
||
>LDYA L.MSG.USAGE
|
||
>SYSCALL printf
|
||
lda #E.SYN
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
.8 sec
|
||
.9 rts
|
||
|
||
.1 >PUSHW.G PAK.Stat+S.PAKSTAT.STORE
|
||
>PUSHW.G PAK.Stat+S.PAKSTAT.S4
|
||
>PUSHW.G PAK.Stat+S.PAKSTAT.S3
|
||
>PUSHW.G PAK.Stat+S.PAKSTAT.REP
|
||
>PUSHW.G PAK.Stat+S.PAKSTAT.BL
|
||
>PUSHW.G PAK.Stat+S.PAKSTAT.PASS2
|
||
>PUSHW.G PAK.Stat+S.PAKSTAT.PASS1
|
||
>PUSHW.G PAK.FileSize
|
||
>PUSHBI 16
|
||
>LDYA L.MSG.DEBUG
|
||
>SYSCALL printf
|
||
*--------------------------------------
|
||
* Y,A = Ptr to Shunk Header:
|
||
* +0 : Flags
|
||
* 10000000 : LZ8 encoded, 1 byte (ESC) follow
|
||
* 01000000 : BS
|
||
*--------------------------------------
|
||
CS.RUN.Unpak lda ZPPakHdrPtr
|
||
clc
|
||
adc #S.PAKSTAT
|
||
sta ZPPakDataPtr
|
||
|
||
lda ZPPakHdrPtr+1
|
||
adc /S.PAKSTAT
|
||
sta ZPPakDataPtr+1
|
||
|
||
lda (ZPPakHdrPtr)
|
||
eor #$ff
|
||
sta UNPAK.Cnt
|
||
|
||
ldy #1
|
||
lda (ZPPakHdrPtr),y
|
||
eor #$ff
|
||
sta UNPAK.Cnt+1
|
||
|
||
lda #$80
|
||
sta UNPAK.Mask
|
||
|
||
>LDA.G PAK.hFileBuf
|
||
>SYSCALL GetMemPtr
|
||
>STYA ZPPakSrcPtr
|
||
|
||
stz UNPAK.Ofs
|
||
stz UNPAK.Ofs+1
|
||
|
||
.1 inc UNPAK.Cnt
|
||
bne .2
|
||
inc UNPAK.Cnt+1
|
||
bne .2
|
||
|
||
lda #0
|
||
sec
|
||
rts
|
||
|
||
.2 lda #'>'
|
||
>SYSCALL PutChar
|
||
|
||
jsr CS.RUN.UnpakGetBitInC
|
||
bcs .3
|
||
*--------------------------------------
|
||
* SHORT3
|
||
ldx #3
|
||
jsr CS.RUN.UnpakGetXBitInA
|
||
clc
|
||
adc #S.PAKHDR.SHORT3
|
||
tay
|
||
lda (ZPPakHdrPtr),y
|
||
sta UNPAK.LastByte
|
||
jsr DEBUG.S3
|
||
jsr CS.RUN.UnpakCmpA
|
||
bcs .9
|
||
bra .1
|
||
|
||
.3 jsr CS.RUN.UnpakGetBitInC
|
||
bcs .4
|
||
*--------------------------------------
|
||
* SHORT4
|
||
ldx #4
|
||
jsr CS.RUN.UnpakGetXBitInA
|
||
clc
|
||
adc #S.PAKHDR.SHORT4
|
||
tay
|
||
lda (ZPPakHdrPtr),y
|
||
sta UNPAK.LastByte
|
||
jsr CS.RUN.UnpakCmpA
|
||
bcs .9
|
||
bra .1
|
||
|
||
.4 jsr CS.RUN.UnpakGetBitInC
|
||
bcs .5
|
||
*--------------------------------------
|
||
* REPn
|
||
ldx #4
|
||
jsr CS.RUN.UnpakGetXBitInA
|
||
tay
|
||
tax
|
||
lda UNPAK.LastByte
|
||
|
||
.41 jsr CS.RUN.UnpakCmpA
|
||
bcs .9
|
||
dey
|
||
bne .41
|
||
|
||
.42 txa
|
||
clc
|
||
adc UNPAK.Cnt
|
||
sta UNPAK.Cnt
|
||
bcc .2
|
||
inc UNPAK.Cnt+1
|
||
bra .2
|
||
|
||
.5 jsr CS.RUN.UnpakGetBitInC
|
||
bcs .6
|
||
*--------------------------------------
|
||
* BACKLINK
|
||
ldx #4
|
||
jsr CS.RUN.UnpakGetXBitInA
|
||
sta UNPAK.BLOfs+1
|
||
jsr CS.RUN.UnpakGetByteInA
|
||
sta UNPAK.BLOfs
|
||
jsr CS.RUN.UnpakGetByteInA
|
||
tax
|
||
tay
|
||
|
||
.51
|
||
bra .42
|
||
*--------------------------------------
|
||
* STOREn
|
||
.6 ldx #4
|
||
jsr CS.RUN.UnpakGetXBitInA
|
||
tay
|
||
tax
|
||
|
||
.61 jsr CS.RUN.UnpakGetByteInA
|
||
dey
|
||
bne .61
|
||
|
||
sta UNPAK.LastByte
|
||
|
||
bra .42
|
||
|
||
.9 >PUSHW UNPAK.Ofs
|
||
>PUSHBI 2
|
||
>LDYA L.MSG.UnpakErr
|
||
>SYSCALL printf
|
||
|
||
lda #0
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
CS.RUN.UnpakGetByteInA
|
||
ldx #8
|
||
*--------------------------------------
|
||
CS.RUN.UnpakGetXBitInA
|
||
lda #0
|
||
|
||
.1 jsr CS.RUN.UnpakGetBitInC
|
||
rol
|
||
dex
|
||
bne .1
|
||
|
||
rts
|
||
*--------------------------------------
|
||
CS.RUN.UnpakGetBitInC
|
||
pha
|
||
clc
|
||
lda (ZPPakDataPtr)
|
||
and UNPAK.Mask
|
||
beq .1
|
||
sec
|
||
|
||
.1 php
|
||
|
||
lsr UNPAK.Mask
|
||
bne .8
|
||
|
||
lda #$80
|
||
sta UNPAK.Mask
|
||
|
||
inc ZPPakDataPtr
|
||
bne .8
|
||
inc ZPPakDataPtr+1
|
||
|
||
.8 plp
|
||
pla
|
||
rts
|
||
*--------------------------------------
|
||
CS.RUN.UnpakCmpA
|
||
cmp (ZPPakSrcPtr)
|
||
bne .9
|
||
inc ZPPakSrcPtr
|
||
bne .1
|
||
inc ZPPakSrcPtr+1
|
||
|
||
.1 inc UNPAK.Ofs
|
||
bne .8
|
||
inc UNPAK.Ofs+1
|
||
|
||
.8 clc
|
||
rts
|
||
|
||
.9 sec
|
||
rts
|
||
*--------------------------------------
|
||
DEBUG.S3 pha
|
||
phx
|
||
phy
|
||
>PUSHA
|
||
>PUSHBI 1
|
||
>LDYA L.MSG.DEBUG.S3
|
||
>SYSCALL printf
|
||
ply
|
||
plx
|
||
pla
|
||
rts
|
||
lda #0
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
CS.DOEVENT sec
|
||
rts
|
||
*--------------------------------------
|
||
CS.QUIT >LDA.G PAK.hFileName
|
||
beq .1
|
||
|
||
>SYSCALL FreeMem
|
||
|
||
.1 >LDA.G PAK.hFileBuf
|
||
beq .2
|
||
|
||
>SYSCALL FreeMem
|
||
|
||
.2 >LDA.G PAK.hOutBuf
|
||
beq .8
|
||
|
||
>SYSCALL FreeMem
|
||
|
||
.8 clc
|
||
rts
|
||
*--------------------------------------
|
||
CS.END
|
||
MSG.USAGE .AS "Usage : UNPAK Archive [DstDir]\r\n"
|
||
*--------------------------------------
|
||
MSG.DEBUG .AS "Src Length : %D\r\n"
|
||
.AS "Pass #1 : %D\r\n"
|
||
.AS "Pass #2 : %D\r\n"
|
||
.AS "BL Count : %D\r\n"
|
||
.AS "REP Count : %D\r\n"
|
||
.AS "S3 Count : %D\r\n"
|
||
.AS "S4 Count : %D\r\n"
|
||
.AZ "STO Count : %D\r\n"
|
||
MSG.UnpakErr .AZ "UnPak Error at Offset : %H\r\n"
|
||
MSG.DEBUG.S3 .AZ "S3:%h\r\n"
|
||
*--------------------------------------
|
||
.DUMMY
|
||
.OR 0
|
||
DS.START
|
||
PAK.hFileName .BS 1
|
||
PAK.FileSize .BS 2
|
||
PAK.hFileBuf .BS 1
|
||
PAK.hOutBuf .BS 1
|
||
PAK.Stat .BS S.PAKSTAT
|
||
DS.END
|
||
.ED
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE BIN/UNPAK.S
|
||
ASM
|