6502/lzsa
1
0
Fork 0
mirror of https://github.com/emmanuel-marty/lzsa.git synced 2024-11-22 05:33:58 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #33 from specke/master

Browse Source 
-1 byte
This commit is contained in:
Emmanuel Marty 2019-10-11 10:18:05 +02:00 committed by GitHub
commit 6adf92fc88
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
asm/z80/unlzsa2_small.asm
View File

@ -1,11 +1,12 @@
; ;
; Size-optimized LZSA2 decompressor by spke & uniabis (140 bytes) ; Size-optimized LZSA2 decompressor by spke & uniabis (139 bytes)
; ;
; ver.00 by spke for LZSA 1.0.0 (02-09/06/2019, 145 bytes); ; ver.00 by spke for LZSA 1.0.0 (02-09/06/2019, 145 bytes);
; ver.01 by spke for LZSA 1.0.5 (24/07/2019, added support for backward decompression); ; ver.01 by spke for LZSA 1.0.5 (24/07/2019, added support for backward decompression);
; ver.02 by uniabis (30/07/2019, 144(-1) bytes, +3.3% speed and support for Hitachi HD64180); ; ver.02 by uniabis (30/07/2019, 144(-1) bytes, +3.3% speed and support for Hitachi HD64180);
; ver.03 by spke for LZSA 1.0.7 (01/08/2019, 140(-4) bytes, -1.4% speed and small re-organization of macros); ; ver.03 by spke for LZSA 1.0.7 (01/08/2019, 140(-4) bytes, -1.4% speed and small re-organization of macros);
; ver.04 by spke for LZSA 1.1.0 (26/09/2019, removed usage of IY, added full revision history) ; ver.04 by spke for LZSA 1.1.0 (26/09/2019, removed usage of IY, added full revision history)
; ver.05 by spke for LZSA 1.1.1 (11/10/2019, 139(-1) bytes, +0.1% speed)
; ;
; The data must be compressed using the command line compressor by Emmanuel Marty ; The data must be compressed using the command line compressor by Emmanuel Marty
; The compression is done as follows: ; The compression is done as follows:
@ -148,8 +149,8 @@ CASE1xx cp %11000000 : jr nc,CASE11x
CASE10x: call ReadNibble CASE10x: call ReadNibble
ld d,a : ld a,c ld d,a : ld a,c
cp %10100000 : rl d cp %10100000 ;: rl d
dec d : dec d : DB #CA ; jr OffsetReadE ; #CA is JP Z,.. to skip all commands in CASE110 before jr OffsetReadE dec d : rl d : DB #CA ; jr OffsetReadE ; #CA is JP Z,.. to skip all commands in CASE110 before jr OffsetReadE
CASE110: ld d,(hl) : NEXT_HL : jr OffsetReadE CASE110: ld d,(hl) : NEXT_HL : jr OffsetReadE