GitHub - joncampbell123/minx86dec: Small x86 opcode decoder library

Branches Tags

Name		Name	Last commit message	Last commit date
Latest commit History 432 Commits
LICENSE		LICENSE
Makefile		Makefile
README		README
TODO		TODO
buildall.sh		buildall.sh
cleantree		cleantree
core286.c		core286.c
core286.h		core286.h
core386.c		core386.c
core386.h		core386.h
core386am.c		core386am.c
core386am.h		core386am.h
core386ibmslc.c		core386ibmslc.c
core386ibmslc.h		core386ibmslc.h
core486.c		core486.c
core486.h		core486.h
core486a.c		core486a.c
core486a.h		core486a.h
core486am.c		core486am.c
core486am.h		core486am.h
core486cyrix.c		core486cyrix.c
core486cyrix.h		core486cyrix.h
core486ibmslc.c		core486ibmslc.c
core486ibmslc.h		core486ibmslc.h
core486ibmslc2.c		core486ibmslc2.c
core486ibmslc2.h		core486ibmslc2.h
core586.c		core586.c
core586.h		core586.h
core586mmx.c		core586mmx.c
core586mmx.h		core586mmx.h
core586pro.c		core586pro.c
core586pro.h		core586pro.h
core5x86_cyrix.c		core5x86_cyrix.c
core5x86_cyrix.h		core5x86_cyrix.h
core686.c		core686.c
core686.h		core686.h
core6x86_cyrix.c		core6x86_cyrix.c
core6x86_cyrix.h		core6x86_cyrix.h
core8086.c		core8086.c
core8086.h		core8086.h
coreall.c		coreall.c
coreall.h		coreall.h
coreall_x64.c		coreall_x64.c
coreall_x64.h		coreall_x64.h
corenecv20.c		corenecv20.c
corenecv20.h		corenecv20.h
decode286.c		decode286.c
decode386.c		decode386.c
decode386am.c		decode386am.c
decode386ibmslc.c		decode386ibmslc.c
decode486.c		decode486.c
decode486a.c		decode486a.c
decode486am.c		decode486am.c
decode486cyrix.c		decode486cyrix.c
decode486ibmslc.c		decode486ibmslc.c
decode486ibmslc2.c		decode486ibmslc2.c
decode586.c		decode586.c
decode586mmx.c		decode586mmx.c
decode586pro.c		decode586pro.c
decode5x86_cyrix.c		decode5x86_cyrix.c
decode686.c		decode686.c
decode6x86_cyrix.c		decode6x86_cyrix.c
decode8086.c		decode8086.c
decodeall.c		decodeall.c
decodeall_x64.c		decodeall_x64.c
decodenecv20.c		decodenecv20.c
disasm-cmp		disasm-cmp
encoreall.c		encoreall.c
encoreall.h		encoreall.h
fuzz-random-test		fuzz-random-test
fuzz-random-test-all		fuzz-random-test-all
git-source-pickup.pl		git-source-pickup.pl
git-update-all		git-update-all
git-update-all-wo-push		git-update-all-wo-push
iit387.c		iit387.c
iit387.h		iit387.h
make.sh		make.sh
opcodes.h		opcodes.h
opcodes_str.h		opcodes_str.h
recode1.asm		recode1.asm
recode286.c		recode286.c
recode386.c		recode386.c
recode386am.c		recode386am.c
recode486.c		recode486.c
recode486a.c		recode486a.c
recode486am.c		recode486am.c
recode586.c		recode586.c
recode8086.c		recode8086.c
recodeall.c		recodeall.c
recodenecv20.c		recodenecv20.c
score8086.c		score8086.c
score8086.h		score8086.h
sdecode8086.c		sdecode8086.c
state.h		state.h
string.c		string.c
svn-add-all		svn-add-all
test-headers.c		test-headers.c
test1.asm		test1.asm
test2.asm		test2.asm
test3.asm		test3.asm

Repository files navigation

Minimalist 80x86 decompiler library.
Use for any program or tool you write to decompile opcodes.
Written in plain C for speed and lightness.

core8086.c             8086/8088 decoding engine
corenecv20.c           80186 NEC V20/V30 decoding engine
core286.c              286 decoding engine
core386.c              386 decoding engine
core386am.c            AMD Am386 decoding engine
core486.c              486 decoding engine
core486a.c             486 Step A decoding engine
core486am.c            AMD Am486 decoding engine
core486cyrix.c         Cyrix decodign engine 486 level
core586.c              Pentium decoding engine
core5x86_cyrix.c       Cyrix decoding engine 5x86
core586pro.c           Pentium Pro decoding engine
core686.c              686 or higher-level (Pentium II or higher) decoding engine
core6x86_cyrix.c       Cyrix decoding engine 6x86 (including Cyrix MMX)
coreall.c              General-purpose x86 decoding engine (all instructions, except those replaced by newer instructions)
coreall_x64.c          General-purpose x86-64 decoding engine (for decoding instructions in 64-bit long mode)

And using the same library, you can also ENCODE opcodes, using the decompiled instruction struct.
This makes it easy to implement assemblers, dynamic recompilers and JIT engines.

encoreall.c            General-purpose x86 encoding engine (all instructions, including those that overlap)