yaxpeax-x86/CHANGELOG, branch 1.0.0 yaxpeax x86 decoder update changelog for 1.0 release 2021-07-04T23:30:33+00:00 iximeow me@iximeow.net 2021-07-04T23:30:33+00:00 61e625b85ff51fea84550788489993c33dff432c 






fix ShowContextual rendering error with stale data and operands, publish 0.2.2
2021-05-17T02:00:03+00:00

iximeow
me@iximeow.net

2021-05-17T02:00:03+00:00

beff8d0f33bc4152422c175ff720fdba0dc021da












0.2.1
2021-05-07T07:13:58+00:00

iximeow
me@iximeow.net

2021-05-07T07:13:58+00:00

e483a562a84204e4e1dd2543e080e9f879a89d82












bump to 0.2.0 and write a changelog
2021-03-23T07:20:14+00:00

iximeow
me@iximeow.net

2021-03-23T07:20:14+00:00

ea5da6beadca3ba63729f03fc40a284e890ccbc7












support xchg AX/reg
2021-01-16T02:41:16+00:00

iximeow
me@iximeow.net

2021-01-16T02:40:31+00:00

6232e8b1daf7067cb2e8065687530d5f88ecb46d












small perf tweaks
2021-01-16T02:21:19+00:00

iximeow
me@iximeow.net

2021-01-16T02:15:04+00:00

d8083b08dc987adeda73fb13298383c6cf519596

clearing reg_rrr and reg_mmm more efficiently is an extremely small win,
but a win

read_imm_signed generally should inline well and runs afoul of some
heuristic. inlining gets about 8% improved throughput on the
(unrealistic) in-repo benchmark

it would be great to be able to avoid bounds checks somehow; it looks
like they alone are another ~10% of decode time. i'm not sure how to
pull that off while retaining the generic iterator parameter. might just
not be possible.





clearing reg_rrr and reg_mmm more efficiently is an extremely small win,
but a win

read_imm_signed generally should inline well and runs afoul of some
heuristic. inlining gets about 8% improved throughput on the
(unrealistic) in-repo benchmark

it would be great to be able to avoid bounds checks somehow; it looks
like they alone are another ~10% of decode time. i'm not sure how to
pull that off while retaining the generic iterator parameter. might just
not be possible.







fix several missing or invalid decodings among 0f01 opcodes
2021-01-15T22:52:11+00:00

iximeow
me@iximeow.net

2021-01-15T22:52:11+00:00

f057c712f91b215034fe84fa0f22694aaa8dffb3

* `mwaitx`, `monitorx`, `rdpru`, and `clzero` are now supported
* swapgs is no longer decoded in protected mode
* rdpkru and wrpkru are no longer decoded if mod bits != 11





* `mwaitx`, `monitorx`, `rdpru`, and `clzero` are now supported
* swapgs is no longer decoded in protected mode
* rdpkru and wrpkru are no longer decoded if mod bits != 11







fix decoding of rex-prefixed modrm+sib operands selecting index 0b100 and base 0b101
2020-11-20T02:13:24+00:00

iximeow
me@iximeow.net

2020-11-20T02:13:24+00:00

81e9b93aab9217cf7cb508f64b19fc1c0df024b5

for memory operands with a base, index, and displacement either
the wrong base would be selected (register number ignored, so only
`*ax` or `r8*` would be reported), or yaxpeax-x86 would report a
base register is present when it is not (`RegIndexBaseScaleDisp`
when the operand is actually `RegScaleDisp`)

thank you to Evan Johnson for catching and reporting this bug!

also bump crate version to 0.1.4 as this will be immediately tagged and
released.





for memory operands with a base, index, and displacement either
the wrong base would be selected (register number ignored, so only
`*ax` or `r8*` would be reported), or yaxpeax-x86 would report a
base register is present when it is not (`RegIndexBaseScaleDisp`
when the operand is actually `RegScaleDisp`)

thank you to Evan Johnson for catching and reporting this bug!

also bump crate version to 0.1.4 as this will be immediately tagged and
released.







fix misdecode of instructions in opcode 0x80
2020-10-27T07:57:33+00:00

iximeow
me@iximeow.net

2020-10-27T07:57:33+00:00

39aaebeb48c30b96b4ff8b66663a1452e2571426












add RegSpec constructors, consts, and const fns
2020-08-15T20:15:29+00:00

iximeow
me@iximeow.net

2020-08-15T20:15:29+00:00

fb9ead64e6c7d96c02627b01b6a85921e2d8f7a4