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| author | iximeow <me@iximeow.net> | 2021-08-13 22:20:29 -0700 |
|---|---|---|
| committer | iximeow <me@iximeow.net> | 2021-08-13 22:20:29 -0700 |
| commit | a6db35d444af1d2af5fc55961aa8785e17a90e30 (patch) | |
| tree | c3b32e5ea7f7a1bbd396cd9f49f31f25b9034525 /docs/0001-AnnotatingDecoder.md | |
| parent | b85a987a56602c7733e3f8a86990a33644a97bf5 (diff) | |
janitorial typo cleanup
Diffstat (limited to 'docs/0001-AnnotatingDecoder.md')
| -rw-r--r-- | docs/0001-AnnotatingDecoder.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/0001-AnnotatingDecoder.md b/docs/0001-AnnotatingDecoder.md index ed544f7..bea57c3 100644 --- a/docs/0001-AnnotatingDecoder.md +++ b/docs/0001-AnnotatingDecoder.md @@ -55,9 +55,9 @@ where `FieldDescription` lets callers that operate generically over spans do *so ### implementation -i've added WIP support for span reporting to `msp430`, `ia64`, and `x86` decoders. i extended `yaxpeax-dis` to [make pretty lines](https://twitter.com/iximeow/status/1423930207614889984). more could be said about that; `id`-order is expected to be, roughtly, the order an instruction is decoded. some instructions sets keep the "first" bits as the low-order bits, some others use the higher bits. so respecting `id`-order necessarily means some instruction sets will have fields "backwards" and make lines extra confusing. +i've added WIP support for span reporting to `msp430`, `ia64`, and `x86` decoders. i extended `yaxpeax-dis` to [make pretty lines](https://twitter.com/iximeow/status/1423930207614889984). more could be said about that; `id`-order is expected to be, roughtly, the order an instruction is decoded. some instructions sets keep the "first" bits as the low-order bits, some others use the higher bits first. so respecting `id`-order necessarily means some instruction sets will have fields "backwards" and make lines extra confusing. -decoders probably ought to indicate boundaries for significant parts of decoding, lest large instructions [like itanium](https://twitter.com/iximeow/status/1424092536071618561) be a nebulous mess. maybe `FieldDescription` could have a `is_separator()` to know when an element (and its bit range) indicates the end of part of an instruction? +decoders probably ought to indicate boundaries for significant parts of decoding, lest large instructions [like itanium](https://twitter.com/iximeow/status/1424092536071618561) be a nebulous mess. maybe `FieldDescription` could have an `is_separator()` to know when an element (and its bit range) indicates the end of part of an instruction? for the most part, things work great. `yaxpeax-x86` had a minor performance regression. tracking it down wasn't too bad: the first one was because `sink` is a fifth argument for a non-inlined function. at this point most ABIs start spilling to memory. so an unused `sink` caused an extra stack write. this was a measurable overhead. the second regression was again pretty simple looking at `disas-bench` builds: |