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2024-06-23adapt OperandVisitor to protected mode tooiximeow
2024-06-23actually use new can_lock in 32b and 16b modesiximeow
2024-06-23actually use new can_rep in 32b and 16b modesiximeow
2024-06-23port opcode helpers and reordering to 32-bit and 16-bit decodersiximeow
2024-06-23add more conditional inlining for 32-bit and 16-bit decodersiximeow
2024-04-02display opt: mem size labels and minor segment reporting changesiximeow
for mem size labels: add one new "BUG" entry at the start of the array so `mem_size` does not need to be adjusted before being used to look up a string from the `MEM_SIZE_STRINGS` array. it's hard to measure the direct benefit of this, but it shrinks codegen size by a bit and simplfies a bit of assembly.... for segment reporting changes: stos/scas/lods do not actually need special segment override logic. instead, set their use of `es` when decoded, if appropriate. this is potentially ambiguous; in non-64bit modes the sequence `26aa` would decode as `stos` with explicit `es` prefix. this is now identical to simply decoding `aa`, which now also reports that there is an explicit `es` prefix even though there is no prefix on tne instruction. on the other hand, the prefix-reported segment now more accurately describes the memory selector through which memory accesses will happen. seems ok?
2023-12-16fix hreset being disassembled as having second operand of "Nothing"iximeow
just report it having one operand...
2023-07-24fix handling of lar/lsl source registeriximeow
2023-07-23fix inconsistently-poreted memory access size of vcvt{,t}{sd,si}iximeow
2023-07-23fix + better test cvttsd2si+cvtsd2si (misdecode under 64-bit)iximeow
2023-07-16fix indentationiximeow
2023-07-16unify 64-/32-bit moreiximeow
2023-07-16forward changes along to 32-bit decoder...iximeow
2023-03-05add `Opcode::is_jcc`, `Opcode::is_setcc`, and `Opcode::is_cmovcc` helpersiximeow
this request/suggestion comes from [github](https://github.com/iximeow/yaxpeax-x86/issues/29)! thank you!
2023-02-19deprecate `pub fn cs`, which is an intensely embarrassing bug of a functioniximeow
unlike every other function to test if a particular selector is picked by prefixes, `Prefixes::cs` does not return bool, nor does it check the currently-selected prefix. instead, it modifies the decoded `Prefixes` to set the current prefix to `cs`. this has been a bug all the way since 0.0.1 was released. the function now does nothing, and is marked deprecated. in a future 2.x release, the function will be changed to return `bool` and be in-line with other segment selector-checking functions. in the mean time, a new `Prefixes::selects_cs()` does the correct thing. thank you to @meithecatte who pointed this out in https://github.com/iximeow/yaxpeax-x86/issues/28!
2022-12-03roll up decoding loop changes for 16-bit and 32-bit decodersiximeow
this applies * f338c74656f6eef8b3080fa9f249b1cb733fd1a9 * bece19e6a69b158893abbf56a6cac25eb25d9a32 * 6353f58170d28a142e3b012c2c86f684d50dea45 * 67be1c0983244645a3c762b7aa0601f0d0ba4bb3 * 091f1d66ef853d6339a96e43d71c137ee7d3907a as one unit to both the 16-bit and 32-bit decoders.
2022-12-03apply e7f49509 to 16-bit and 32-bit decodersiximeow
2022-12-03apply 2444de11 to 16-bit and 32-bit decodersiximeow
these don't need the extra `rex`-supporting index space, so they don't have it.
2022-09-23Fix some typos.Bruce Mitchener
2022-04-30support 0x9a callf in 16/32-bit modesiximeow
2022-04-24fix a few issues preventing no-std builds from ... buildingiximeow
this includes a `Makefile` that exercises the various crate configs. most annoyingly, several doc comments needed to grow `#[cfg(feature="fmt")]` blocks so docs continue to build with that feature enabled or disabled. carved out a way to run exhaustive tests; they should be written as `#[ignore]`, and then the makefile will run even ignored tests on the expectation that this will run the exhaustive (but slower) suite. exhaustive tests are not yet written. they'll probably involve spanning 4 byte sequences from 0 to 2^32-1.
2022-01-12fuzz DisplayStyle::C and fix corresponding issues1.1.4iximeow
2022-01-02Wrap unsafe functions to catch errors in debug5225225
Closes https://github.com/iximeow/yaxpeax-x86/issues/16
2021-12-19fix incorrect memory size for f30f1e-style nopiximeow
not only did the instruction have wrong data, but if displayed, the formatter would panic.
2021-12-19test that invalid RegSpec constructions panic as expectediximeow
in the process, fix 64-bit rex-byte limit, 32/16-bit mode mask reg limit
2021-12-17write `apply_disp_scale` in a mode-agnostic wayiximeow
`apply_disp_scale` forgot that `wrapping_mul` exists, so we don't need to explicitly write the size of value that `mem_size` should be cast to, in casting to/from a signed integer. taken with `.into()`, we don't need per-architecture stubs to make evex decoding work.
2021-12-16displacements are stored as unsigned, but are functionally signed intsiximeow
so multiplying to expand EVEX compressed offsets can overflow, and that needs to be okay.
2021-10-10support endbr{32,64}iximeow
2021-10-10consistentify doc styleiximeow
2021-10-10export `InstructionDisplayer` (#9)i509VCB
This makes generated docs refer to a type and show said type in the list of all structs rather than rustdoc showing gray text in return types. quote doc references
2021-08-22bump to yaxpeax-arch 0.2.7 and proper field description support1.1.0iximeow
2021-08-22add 16/32-bit opcode/operand boundary desc, consistentify memory descriptionsiximeow
2021-08-21add `AnnotatingDecoder` note to CHANGELOG and publicize descriptionsiximeow
2021-08-21improve relative branch offset formatting for DisplayStyle::Ciximeow
2021-08-21add descriptions for other prefixes, 16-bit addressingiximeow
2021-08-21add description reporting for segment prefixes and opcodes for 32-bit and 16-bitiximeow
2021-08-21report barebones decoder annotation for vex-coded instructionsiximeow
2021-08-21extend decoder annotation through all of 64-, 32-, and 16-bit modesiximeow
2021-08-21extend annotation reporting to 32- and 16-bit modes, kindaiximeow
2021-08-21fix negative relative branches (again!!! +- is bad!!!)iximeow
2021-08-21add push/pop/call/ret mem_size fixes to changelogiximeow
2021-08-21clarify inaccurate 32/16-bit `call/jmp [mem]` mem_sizeiximeow
2021-08-21report memory sizes for push, pop, call, retiximeow
these instructions had memory sizes reported for the operand, if it was a memory operand, but for versions with non-memory operands the decoded `Instruction` would imply that non memory access would happen at all. now, decoded instructions in these cases will report a more useful memory size.
2021-08-14relative branches should be shown as $+offset, not just plain offsetiximeow
while x86 branches of immediates are all relative to PC, other architectures may have absolute branches to immediate addresses, leaving this syntax ambiguous and potentially confusing. yaxpeax prefers to write relative offsets `$+...` as a rule, so uphold that here.
2021-08-14delcare pub const fn constructors for all gp registers, segment registers, ↵iximeow
and ip/flags
2021-07-22fix incorrect decodes with scas and 67-prefixes1.0.4iximeow
2021-07-04update yaxpeax-arch to 0.2.0 and update DecodeError implsiximeow
2021-07-04update crate to rust 2018iximeow
2021-07-04support avx512 registers >=16iximeow
2021-07-04handle vzeroupper/vzeroall, reject vzero* with nonzero vvvviximeow