Commit Graph

66 Commits

Author SHA1 Message Date
e429f252a5 Merge branch 'z80' 2022-09-27 22:28:12 +02:00
f6642f07c9 more config options, unpack error handling, fuzzing v0.2.0-pre3 2022-09-27 17:16:05 +02:00
8715dede0e add --eof-in-length option 2022-09-26 23:41:17 +02:00
b12c8f8d93 add parameter to print out margin for overlapped unpacking 2022-09-25 23:44:03 +02:00
af5fe898bf add --no-repeated-offsets to help v0.2.0-pre2 2022-09-25 16:24:24 +02:00
331857a711 add option to disable repeated offsets 2022-09-25 16:23:11 +02:00
12e6f95fe8 add remaining encoding config options + presets for x86 and z80 v0.2.0-pre1 2022-09-24 22:00:50 +02:00
23872b3222 implement encoding options 2022-09-24 20:52:39 +02:00
ced6cc8c32 some more risc-v optimizations 2022-09-24 08:45:14 +02:00
8c9e4311b9 first (poorly optimized) risc-v unpacker 2022-09-23 22:40:47 +02:00
31c31bdcfb clean up command line interface 2022-09-21 22:45:06 +02:00
8f33ae0b1e add reverse compression option 2022-09-21 21:37:30 +02:00
f5fc9bd005 implement optional parity contexts 2022-09-20 23:24:19 +02:00
cc41feb5cd alternative way to write state/prob update 2022-09-19 18:33:02 +02:00
c8924456aa -r reverses both input and output 2022-09-18 23:38:41 +02:00
7b0e22f459 Merge pull request #3 from ped7g/z80_ped7g
backward unpacker + example extended
2022-09-18 23:24:28 +02:00
5c7aee046a optimize decode_bit some more -> 166b 2022-09-18 23:11:26 +02:00
Peter Helcmanovsky (Ped)
165f593a11 z80_unpacker: (codestyle) whitespace + temporary label rename 2022-09-18 23:04:37 +02:00
Peter Helcmanovsky (Ped)
d4bce4bf7c z80_unpacker: optimisation: -3B and ~-10T in decode_bit = 174B
unpack zx48.rom is now ~22.6s (from 23.0s)
(performance version is now 199 bytes, zx48.rom unpack 19.4s -> 19.0s)
2022-09-18 22:54:10 +02:00
612084a5bf decode_length returns negative value -> 172b 2022-09-18 22:36:31 +02:00
ad731c2e75 Merge pull request #4 from Ferdi265/master
unpack_armv6m: update comment headers and remove unneeded pushed register
2022-09-18 18:51:37 +02:00
Ferdinand Bachmann
52f9778c0f unpack_armv6m: update comment headers and remove unneeded pushed register 2022-09-18 18:49:20 +02:00
49a611e8ba some more optimizations -> 176 bytes 2022-09-18 17:17:37 +02:00
2f820316e3 change prob_index update to save two instructions -> 184b 2022-09-18 16:27:21 +02:00
5bc3f88564 invert was_match -> 188 bytes 2022-09-18 15:58:31 +02:00
434769b591 simple dev setup for asm unpackers 2022-09-18 15:40:23 +02:00
Peter Helcmanovsky (Ped)
b13fa05413 z80_unpacker: add backward variant of unpacker + example extended 2022-09-18 00:23:14 +02:00
Peter Helcmanovsky (Ped)
3c773aca8d z80_unpacker: add performance variant of depacker 2022-09-16 03:38:03 +02:00
a5406deb30 Merge pull request #2 from ped7g/z80_ped7g
Z80 ped7g - few more optimisations for current variant of packer
2022-09-16 00:26:55 +02:00
Peter Helcmanovsky (Ped)
9211544cb9 z80_unpacker: add resulting snapshot file to example 2022-09-15 18:37:06 +02:00
Peter Helcmanovsky (Ped)
3fa9e0fa12 z80_unpacker: optimisations: 0B, -13T in decode_bit (stays 177B) 2022-09-15 18:22:33 +02:00
Peter Helcmanovsky (Ped)
aa3fad4d80 z80_unpacker: optimisations: -3B and ~-24T in decode_bit = 177B 2022-09-15 18:22:32 +02:00
Peter Helcmanovsky (Ped)
6624940ed9 z80_unpacker: optimisations: -2B and -27T in decode_bit = 180B 2022-09-15 18:22:32 +02:00
Peter Helcmanovsky (Ped)
c3a9773e5c z80_unpacker: optimisations: -1B in unpack implementation = 182B 2022-09-15 18:22:31 +02:00
Peter Helcmanovsky (Ped)
a75a35efb2 z80_unpacker: probs context-size for offset/length numbers as EQU 2022-09-15 18:22:27 +02:00
540a91d1ba forgot to add back -l 9 2022-09-15 00:18:30 +02:00
e7aaf1491a add old-prob-update to compare script, add reverse option 2022-09-14 23:51:38 +02:00
a1dabaf7f9 add simple script to compare compression of variants 2022-09-14 23:41:14 +02:00
75e375fb1f Merge branch 'ped7g-z80_ped7g' into z80 2022-09-14 09:03:28 +02:00
Peter Helcmanovsky (Ped)
c7ea11bce3 z80_unpacker: optimisations: -2B in unpack implementation = 183B 2022-09-14 01:44:04 +02:00
Peter Helcmanovsky (Ped)
02d20867ee z80_unpacker: optimisations: -2B in unpack implementation = 185B 2022-09-14 01:01:56 +02:00
Peter Helcmanovsky (Ped)
511ddefc08 z80_unpacker: optimisations: -4T per offset/length bit decoded
making the 256-alignment of probs array even more baked-in, but there
was no real chance to get rid of that any way
2022-09-14 00:01:51 +02:00
Peter Helcmanovsky (Ped)
d30baaa91f z80_unpacker: optimisations: -1B by keeping write_ptr in DE' 2022-09-13 23:57:59 +02:00
Peter Helcmanovsky (Ped)
919a892ef0 z80_unpacker: optimisations: -1B by decode_length returning CF=0 2022-09-13 23:25:03 +02:00
Peter Helcmanovsky (Ped)
ea5c0b1b15 z80_unpacker: optimisations: shorter >>4 in probs update 2022-09-13 23:15:18 +02:00
Peter Helcmanovsky (Ped)
a19ec2abb7 z80_unpacker: optimisations: remove .offset init
first offset is mandatory in packed data
2022-09-13 22:53:15 +02:00
Peter Helcmanovsky (Ped)
7b051113e1 z80_unpacker: initial working version with screen-slideshow example 2022-09-13 22:12:03 +02:00
f1f1c64a76 implement simplified prob update, update unpack.c 2022-09-10 12:01:42 +02:00
36cb6d77b5 BE bitstream, flip bit encoding 2022-09-10 11:31:09 +02:00
629c5fce7d optimize c_unpacker state update a bit, add -b flag to --help 2022-09-09 19:10:31 +02:00