A2osX/LIB/LIBPAK.S.txt

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2019-09-19 15:22:14 +00:00
NEW
AUTO 3,1
.LIST OFF
.OP 65C02
.OR $2000
2019-12-03 15:42:17 +00:00
.TF lib/libpak
*--------------------------------------
2021-01-12 21:14:13 +00:00
.INB inc/macros.i
.INB inc/a2osx.i
.INB inc/libpak.i
*--------------------------------------
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STATS .EQ 0
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*--------------------------------------
ZPSrcPtr .EQ ZPLIB
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ZPDstPtr .EQ ZPLIB+2
ZPStatPtr .EQ ZPLIB+4
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ZPSrcBLPtr .EQ ZPLIB+6
ZPCnt .EQ ZPLIB+8
ZPBLCnt .EQ ZPLIB+10
*--------------------------------------
* 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
.DA 0
.DA 0
.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1 .DA LIB.LOAD
.DA LIB.UNLOAD
.DA Pak
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.DO STATS=1
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L.MSG.Stats .DA MSG.Stats
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L.MSG.TopBytes .DA MSG.TopBytes
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.FIN
.DA 0
*--------------------------------------
LIB.LOAD
LIB.UNLOAD clc
rts
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*/--------------------------------------
* # Pak
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* ##ASM
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* `>PUSHW StatPtr`
* `>PUSHW DstPtr`
* `>PUSHW SrcLen`
* `>PUSHW SrcPtr`
* `>LIBCALL hLIBPAK,Pak`
* ## RETURN VALUE
* CC, Y,A = CLEN
* CS, Pak failure
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*\--------------------------------------
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Pak >PULLW Pak.SrcPtr
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>PULLW Pak.Shnk+S.PAKSHNK.ULEN
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>PULLW ZPDstPtr
>PULLW ZPStatPtr
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* Reset Byte counters
ldx #0
.1 stz Pak.CntL,x
stz Pak.CntH,x
inx
bne .1
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ldx #S.PAKSTAT.PASS2+1
.2 stz Pak.Stat,x Reset Stats
dex
bpl .2
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2019-09-27 14:53:44 +00:00
* PASS #1 : no store, update byte counters
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stz Pak.bPass2
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jsr Pak.Out.Init Initialize properly for first "PutBit" Call
bcs .9
2018-02-09 07:04:19 +00:00
jsr Pak.Run
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2019-10-11 13:06:33 +00:00
jsr Pak.ComputeLenBits
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jsr Pak.BuildTOPTable
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2019-10-14 05:23:09 +00:00
.DO STATS=1
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jsr Pak.PrintStats
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.FIN
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* PASS #2 : store with TOP bytes
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dec Pak.bPass2
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jsr Pak.Out.Init Initialize properly for first "PutBit" Call
2019-10-15 15:32:50 +00:00
bcs .9
2018-02-08 16:39:56 +00:00
2018-02-09 07:04:19 +00:00
jsr Pak.Run
bcs .9
2019-10-03 15:39:08 +00:00
2019-10-16 06:09:13 +00:00
jsr Pak.Out.Close
bcs .9
2018-02-08 16:39:56 +00:00
ldy #S.PAKSTAT-1
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.7 lda Pak.Stat,y
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sta (ZPStatPtr),y
dey
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bpl .7
2019-10-11 13:53:03 +00:00
2019-11-05 13:36:10 +00:00
.DO STATS=1
jsr Pak.PrintStats
.FIN
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>LDYA Pak.Stat+S.PAKSTAT.PASS2
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clc
2018-02-09 07:04:19 +00:00
2019-11-05 13:36:10 +00:00
.DO STATS=1
rts
.FIN
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2019-11-05 13:36:10 +00:00
.9
.DO STATS=1
jsr Pak.PrintStats
sec
.FIN
rts
*--------------------------------------
Pak.Out.Init lda Pak.Shnk+S.PAKSHNK.ULEN
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eor #$ff
sta Pak.SrcCnt
sta Pak.DstCnt
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lda Pak.Shnk+S.PAKSHNK.ULEN+1
eor #$ff
sta Pak.SrcCnt+1
sta Pak.DstCnt+1
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2019-11-05 13:36:10 +00:00
bit Pak.bPass2
bpl .8
lda Pak.Shnk+S.PAKSHNK.BLBITS
jsr Pak.Out.PutByte
bcs .9
lda Pak.Shnk+S.PAKSHNK.ULEN
jsr Pak.Out.PutByte
bcs .9
lda Pak.Shnk+S.PAKSHNK.ULEN+1
jsr Pak.Out.PutByte
bcs .9
lda Pak.Shnk+S.PAKSHNK.TOPCNT
jsr Pak.Out.PutByte
bcs .9
tax
ldy #0
.1 lda Pak.Shnk+S.PAKSHNK.TOPBYTES,y
jsr Pak.Out.PutByte
bcs .9
iny
dex
bne .1
lda #$80
sta Pak.Out.Mask
stz Pak.Out.Byte
.8 clc
.9 rts
*--------------------------------------
Pak.Run >LDYA Pak.SrcPtr
>STYA ZPSrcPtr
stz Pak.BL.Longest
stz Pak.BL.Farest
stz Pak.BL.Farest+1
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ldx #S.PAKSTAT.TOP8
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2019-10-04 15:47:26 +00:00
.1 stz Pak.Stat,x Reset Stats
inx
cpx #S.PAKSTAT
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bne .1
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2019-10-02 15:21:03 +00:00
Pak.Run.1 inc Pak.SrcCnt
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bne .1
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2019-10-02 15:21:03 +00:00
inc Pak.SrcCnt+1
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beq .8 0 byte left...
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.1 jsr Pak.ScanBL
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bcs .20
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2019-10-11 13:06:33 +00:00
jsr Pak.PutBL
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bcs .9
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ldy Pak.BestBLLen
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.6 tya
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clc
adc ZPSrcPtr
sta ZPSrcPtr
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bcc .7
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inc ZPSrcPtr+1
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.7 tya
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clc
2018-02-08 16:39:56 +00:00
adc Pak.SrcCnt
sta Pak.SrcCnt
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bcc .1
2018-02-08 16:39:56 +00:00
inc Pak.SrcCnt+1
2019-10-02 15:21:03 +00:00
bmi .1
2019-10-10 15:52:45 +00:00
2019-10-13 08:35:31 +00:00
.8 clc
2019-10-02 15:21:03 +00:00
.9 rts
2019-10-09 15:43:31 +00:00
.20 lda (ZPSrcPtr) Not found...
jsr Pak.PutByte8
bcs .9
inc ZPSrcPtr
bne Pak.Run.1
inc ZPSrcPtr+1
bra Pak.Run.1
2019-10-07 15:49:03 +00:00
*--------------------------------------
2019-10-09 05:45:36 +00:00
Pak.ScanBL >LDYA Pak.SrcPtr Start at beginning of Src buf
>STYA ZPSrcBLPtr
lda #$ff
sta Pak.bBLFound
stz Pak.BestBLLen
.1 lda ZPSrcBLPtr
sec
sbc ZPSrcPtr
sta ZPBLCnt
lda ZPSrcBLPtr+1
sbc ZPSrcPtr+1
sta ZPBLCnt+1 ZPSrcBLPtr < !BlCnt < ZPSrcPtr
bcs .8 ZPSrcBLPtr = ZPSrcPtr, exit
>LDYA Pak.SrcCnt make sure not going past End Buffer
>STYA ZPCnt while reading ahead
ldy #0 ...or Y = BL.MAX
.2 inc ZPBLCnt
bne .3
inc ZPBLCnt+1
beq .6 ZPSrcBLPtr = ZPSrcPtr
.3 inc ZPCnt
bne .4
inc ZPCnt+1
beq .6 Last Src Data
.4 lda (ZPSrcPtr),y
cmp (ZPSrcBLPtr),y
bne .6 End of string matching
.5 iny
cpy #BL.MAX
bne .2 Max BL len
.6 cpy #BL.MIN
bcc .7 not long enough
cpy Pak.BestBLLen
bcc .7 not better ...
* beq .7 !!! same...but closer !!!
sty Pak.BestBLLen
lda ZPSrcPtr
sec
sbc ZPSrcBLPtr
sta Pak.BestBL
lda ZPSrcPtr+1
sbc ZPSrcBLPtr+1
sta Pak.BestBL+1
stz Pak.bBLFound
.7 inc ZPSrcBLPtr
bne .1
inc ZPSrcBLPtr+1
bra .1
.8 rol Pak.bBLFound
rts
*--------------------------------------
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Pak.ComputeLenBits
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ldx #0
lda Pak.BL.Longest
beq .10
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2019-10-15 15:32:50 +00:00
ldx #3
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2019-10-07 15:49:03 +00:00
dec
dec
dec
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beq .10
ldx #8
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2019-10-07 15:49:03 +00:00
.1 asl
bcs .10
dex
bra .1
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.10 stx Pak.BL.LenBits
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ldx #0
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ldy #0
lda Pak.BL.Farest+1
beq .22
ldy #8
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ldx #8
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.2 asl
bcs .4
dey
bra .2
.22 lda Pak.BL.Farest
2019-10-14 05:23:09 +00:00
beq .4
ldx #8
2019-10-07 15:49:03 +00:00
.3 asl
bcs .4
dex
bra .3
.4 stx Pak.BL.OfsBitsL
sty Pak.BL.OfsBitsH
2019-10-09 15:43:31 +00:00
lda Pak.BL.LenBits
asl
asl
asl
asl
adc Pak.BL.OfsBitsL
adc Pak.BL.OfsBitsH
ora #$80
sta Pak.Shnk+S.PAKSHNK.BLBITS
2019-10-07 15:49:03 +00:00
rts
2018-02-08 16:39:56 +00:00
*--------------------------------------
2019-10-04 15:47:26 +00:00
Pak.BuildTOPTable
ldy #0
.1 stz Pak.Cnt Init best score to 0
stz Pak.Cnt+1
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2019-10-04 15:47:26 +00:00
sec
ror Pak.bStop
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ldx #0
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2019-10-04 15:47:26 +00:00
.2 lda Pak.CntL,x
ora Pak.CntH,x
beq .3
stz Pak.bStop
lda Pak.Cnt
cmp Pak.CntL,x is it better at X
lda Pak.Cnt+1
sbc Pak.CntH,x
bcs .3 not better or equal...
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2019-10-14 05:23:09 +00:00
stx Pak.Top.Best save new score index...
2019-10-03 15:39:08 +00:00
2019-10-04 15:47:26 +00:00
lda Pak.CntL,x
sta Pak.Cnt ...and value
lda Pak.CntH,x
sta Pak.Cnt+1
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2019-10-04 15:47:26 +00:00
.3 inx
bne .2
bit Pak.bStop
bmi .8
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lda Pak.Top.Best
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sta Pak.Shnk+S.PAKSHNK.TOPBYTES,y
tax
stz Pak.CntL,x Discard this entry
stz Pak.CntH,x
iny
2019-10-11 13:53:03 +00:00
cpy #TOP.MAX
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bne .1
2019-10-14 05:23:09 +00:00
.8 sty Pak.Shnk+S.PAKSHNK.TOPCNT
2019-10-15 15:32:50 +00:00
Pak.BuildTOPTable.RTS
2019-10-03 15:39:08 +00:00
rts
*--------------------------------------
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Pak.PutBL ldx #S.PAKSTAT.BL
jsr Pak.UpdateStats
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2019-10-07 15:49:03 +00:00
lda Pak.BestBLLen
cmp Pak.BL.Longest
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bcc .1
2019-10-07 15:49:03 +00:00
sta Pak.BL.Longest
2019-10-15 15:32:50 +00:00
.1 ldy Pak.BestBL
2019-10-07 15:49:03 +00:00
cpy Pak.BL.Farest
lda Pak.BestBL+1
pha
sbc Pak.BL.Farest+1
pla
2019-10-15 15:32:50 +00:00
bcc .2
2019-10-03 15:39:08 +00:00
2019-10-07 15:49:03 +00:00
>STYA Pak.BL.Farest
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2019-10-15 15:32:50 +00:00
.2 bit Pak.bPass2
bmi .3
2019-10-07 15:49:03 +00:00
ldx #S.PAKSTAT.PASS1 Assume 1 BL worse case is 3 bytes
jsr Pak.UpdateStats
jsr Pak.UpdateStats
jsr Pak.UpdateStats
clc
rts
2019-10-07 15:49:03 +00:00
2019-10-15 15:32:50 +00:00
.3 ldy #PAK.B.BL.W
2019-10-08 15:58:43 +00:00
lda #PAK.B.BL
jsr Pak.Out.PutYBits
2019-10-15 15:32:50 +00:00
bcs Pak.BuildTOPTable.RTS
ldy Pak.BL.OfsBitsL
lda Pak.BestBL
jsr Pak.Out.PutYBits
bcs Pak.BuildTOPTable.RTS
2019-10-07 15:49:03 +00:00
ldy Pak.BL.OfsBitsH
2019-10-15 15:32:50 +00:00
beq .4
2019-10-07 15:49:03 +00:00
lda Pak.BestBL+1
jsr Pak.Out.PutYBits
2019-10-15 15:32:50 +00:00
bcs Pak.BuildTOPTable.RTS
2019-10-07 15:49:03 +00:00
2019-10-15 15:32:50 +00:00
.4 ldy Pak.BL.LenBits
2019-10-07 15:49:03 +00:00
lda Pak.BestBLLen
dec
dec
dec
2019-10-10 15:52:45 +00:00
jmp Pak.Out.PutYBits
2018-02-08 16:39:56 +00:00
*--------------------------------------
2019-10-14 05:23:09 +00:00
Pak.PutByte8 bit Pak.bPass2
2019-10-10 15:52:45 +00:00
bmi Pak.PutByte8.2
2019-10-02 15:21:03 +00:00
2019-10-08 15:58:43 +00:00
.5 tax
inc Pak.CntL,x
bne .6
2019-10-02 15:21:03 +00:00
2019-10-07 15:49:03 +00:00
inc Pak.CntH,x
2019-10-08 15:58:43 +00:00
2019-10-13 08:35:31 +00:00
.6 ldx #S.PAKSTAT.BYTE8
2019-10-07 15:49:03 +00:00
jsr Pak.UpdateStats
2019-10-13 08:35:31 +00:00
ldx #S.PAKSTAT.PASS1
2019-10-02 15:21:03 +00:00
jsr Pak.UpdateStats
clc
rts
2019-10-15 15:32:50 +00:00
2019-10-14 05:23:09 +00:00
Pak.PutByte8.2 ldy Pak.Shnk+S.PAKSHNK.TOPCNT
2019-11-05 13:36:10 +00:00
beq .2 No TOP Table
2018-02-09 07:04:19 +00:00
2019-09-27 14:53:44 +00:00
.1 cmp Pak.Shnk+S.PAKSHNK.TOPBYTES-1,y
2018-02-09 07:04:19 +00:00
beq .3
dey
2019-10-04 15:47:26 +00:00
bne .1
2018-02-09 07:04:19 +00:00
2019-11-05 13:36:10 +00:00
.2 ldx #S.PAKSTAT.BYTE8
2019-10-13 08:35:31 +00:00
jsr Pak.UpdateStats
2019-10-10 15:52:45 +00:00
2019-10-13 08:35:31 +00:00
pha
ldy #PAK.B.BYTE8.W
lda #PAK.B.BYTE8
jsr Pak.Out.PutYBits
pla
2019-10-10 15:52:45 +00:00
bcs .9
2019-10-13 08:35:31 +00:00
ldy #8
jmp Pak.Out.PutYBits
.3 dey Range 0-31
2019-10-04 15:47:26 +00:00
tya
2019-09-27 14:53:44 +00:00
lsr
lsr
lsr
2019-10-13 08:35:31 +00:00
tax Range 0-3
2019-10-11 06:40:08 +00:00
2019-09-27 14:53:44 +00:00
tya
and #7
ora TOP.Bits,x
ldy TOP.BitCnt,x
2019-10-15 15:32:50 +00:00
.4 pha
2019-10-11 06:40:08 +00:00
2019-09-27 14:53:44 +00:00
lda TOP.Stat,x
tax
jsr Pak.UpdateStats
2019-10-11 06:40:08 +00:00
pla
2019-09-25 15:34:43 +00:00
jmp Pak.Out.PutYBits
2019-10-10 15:52:45 +00:00
.9 rts
*--------------------------------------
2019-10-03 15:39:08 +00:00
Pak.Out.Close bit Pak.Out.Mask
bmi .8
2019-10-17 10:36:45 +00:00
2019-10-03 15:39:08 +00:00
lda Pak.Out.Byte
2019-10-17 10:36:45 +00:00
bra Pak.Out.PutByte
2019-10-03 15:39:08 +00:00
.8 clc
rts
*--------------------------------------
Pak.Out.PutYBits
2019-10-10 15:52:45 +00:00
phy
.1 cpy #8
beq .2
asl
iny
bra .1
.2 ply
2019-10-14 15:58:16 +00:00
.3 asl
pha
2019-10-10 15:52:45 +00:00
2019-10-11 06:40:08 +00:00
bcc .4
2019-10-14 15:58:16 +00:00
2019-10-03 15:39:08 +00:00
lda Pak.Out.Mask
tsb Pak.Out.Byte
2019-10-11 06:40:08 +00:00
.4 lsr Pak.Out.Mask
bcc .5
2019-10-03 15:39:08 +00:00
ror Pak.Out.Mask
2019-10-10 15:52:45 +00:00
lda Pak.Out.Byte
2019-10-14 15:58:16 +00:00
stz Pak.Out.Byte
2019-10-15 15:32:50 +00:00
2019-10-10 15:52:45 +00:00
jsr Pak.Out.PutByte
2019-10-03 15:39:08 +00:00
2019-10-11 06:40:08 +00:00
.5 pla
bcs .9
dey
2019-10-14 15:58:16 +00:00
bne .3
2019-10-11 06:40:08 +00:00
* clc
2021-01-13 16:57:41 +00:00
rts
.9 lda #E.BUF
sec
rts
2019-10-03 15:39:08 +00:00
*--------------------------------------
Pak.Out.PutByte inc Pak.DstCnt
bne .1
inc Pak.DstCnt+1
beq .9
.1 sta (ZPDstPtr)
inc ZPDstPtr
2019-10-16 06:09:13 +00:00
2019-10-03 15:39:08 +00:00
bne .2
inc ZPDstPtr+1
.2 inc Pak.Stat+S.PAKSTAT.PASS2
bne .8
inc Pak.Stat+S.PAKSTAT.PASS2+1
.8 clc
rts
2021-01-13 16:57:41 +00:00
.9 lda #E.BUF
sec
2019-10-03 15:39:08 +00:00
rts
*--------------------------------------
2018-02-08 16:39:56 +00:00
Pak.UpdateStats inc Pak.Stat,x
bne .8
2018-02-08 16:39:56 +00:00
inc Pak.Stat+1,x
.8 rts
*--------------------------------------
2019-10-14 05:23:09 +00:00
.DO STATS=1
2019-10-07 15:49:03 +00:00
Pak.PrintStats lda Pak.BL.OfsBitsL
2019-10-04 15:47:26 +00:00
clc
2019-10-07 15:49:03 +00:00
adc Pak.BL.OfsBitsH
2019-10-04 15:47:26 +00:00
>PUSHA
2019-10-07 15:49:03 +00:00
>PUSHW Pak.BL.Farest
>PUSHB Pak.BL.LenBits
>PUSHB Pak.BL.Longest
2019-10-09 15:43:31 +00:00
>PUSHW Pak.Stat+S.PAKSTAT.BL
2019-10-11 13:06:33 +00:00
ldx #S.PAKSTAT.BYTE8
2019-10-02 15:21:03 +00:00
.1 >PUSHW Pak.Stat,x
dex
dex
bpl .1
2019-10-14 05:23:09 +00:00
>PUSHW Pak.Shnk+S.PAKSHNK.ULEN
>PUSHBI 23
2019-10-02 15:21:03 +00:00
>LDYA L.MSG.Stats
2020-02-28 07:21:46 +00:00
>SYSCALL PrintF
2019-10-02 15:21:03 +00:00
2019-10-13 08:35:31 +00:00
ldx #TOP.MAX-1
2019-10-02 15:21:03 +00:00
2019-10-13 08:35:31 +00:00
.2 >PUSHB Pak.Shnk+S.PAKSHNK.TOPBYTES,x
2019-10-02 15:21:03 +00:00
dex
bpl .2
2019-10-14 05:23:09 +00:00
>PUSHB Pak.Shnk+S.PAKSHNK.TOPCNT
2019-10-13 08:35:31 +00:00
2019-10-11 13:53:03 +00:00
>PUSHBI TOP.MAX+1
>LDYA L.MSG.TopBytes
2020-02-28 07:21:46 +00:00
>SYSCALL PrintF
2019-11-05 13:36:10 +00:00
bit Pak.bPass2
bpl .9
>DEBUG
.9 rts
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.FIN
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*--------------------------------------
CS.END
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*--------------------------------------
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.DO STATS=1
MSG.Stats .AS "\r\nLength : %5D\r\n"
.AS "Pass 1 : %5D\r\n"
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.AS "Pass 2 : %5D\r\n"
.AS "Top 8 : %5D\r\n"
.AS "Top 16 : %5D\r\n"
.AS "Top 24 : %5D\r\n"
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.AS "Top 32 : %5D\r\n"
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.AS "Byte 8 : %5D\r\n"
.AZ "BL : %5D, Longest : %d (%d bits), Farest : %D (%d bits)\r\n"
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MSG.TopBytes .AS "Top : (%2d) %h.%h.%h.%h.%h.%h.%h.%h %h.%h.%h.%h.%h.%h.%h.%h\r\n"
.AZ " %h.%h.%h.%h.%h.%h.%h.%h %h.%h.%h.%h.%h.%h.%h.%h\r\n"
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.FIN
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TOP.Bits .DA #PAK.B.TOP8,#PAK.B.TOP16,#PAK.B.TOP24,#PAK.B.TOP32
TOP.BitCnt .DA #PAK.B.TOP8.W,#PAK.B.TOP16.W,#PAK.B.TOP24.W,#PAK.B.TOP32.W
TOP.Stat .DA #S.PAKSTAT.TOP8,#S.PAKSTAT.TOP16,#S.PAKSTAT.TOP24,#S.PAKSTAT.TOP32
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*--------------------------------------
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Pak.SrcPtr .BS 2
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Pak.SrcCnt .BS 2
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Pak.DstCnt .BS 2
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Pak.bPass2 .BS 1
Pak.BL.Longest .BS 1
Pak.BL.Farest .BS 2
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Pak.BL.LenBits .BS 1
Pak.BL.OfsBitsL .BS 1
Pak.BL.OfsBitsH .BS 1
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Pak.bBLFound .BS 1
Pak.BestBLLen .BS 1
Pak.BestBL .BS 2
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Pak.Top.Best .BS 1
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Pak.Cnt .BS 2
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Pak.bStop .BS 1
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Pak.Out.Byte .BS 1
Pak.Out.Mask .BS 1
*--------------------------------------
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Pak.CntL .BS 256
Pak.CntH .BS 256
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Pak.Shnk .BS S.PAKSHNK
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Pak.Stat .BS S.PAKSTAT
*--------------------------------------
MAN
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SAVE usr/src/lib/libpak.s
ASM