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path: root/test/protected_mode/mod.rs
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2023-12-16fix incorrect register selection for `vpmovm2*` with `rex.b` setiximeow
2023-12-16abnormal memory sizes for keylocker instructions are not bugsiximeow
new `does_not_decode_invalid_registers` fuzzer found other bugs! the 384-bit accesses for 128b keylocker instructions are an otherwise-unknown size and had a memory size of `BUG`. they are not bugs. give the memory size a real name.
2023-12-15more RegSpec constructor validation, fix bug in x86_64 1b reg specsiximeow
* the first four 1-byte registers, `al`, `cl`, `dl`, `bl`, can be constructed in two ways that produce "identical" `RegSpec` that are.. not. e.g. `RegSpec::al() != Regspec::rb(0)` even though `RegSpec::al().name() == RegSpec::rb(0).name()`. this corrects the `rb` constructor at least, but instructions like `4830c0` and `30c0` still produce incompatible versions of `al`. * also fix register numbering used explicit qword-sized RegSpec constructors, r12 and r13 used to produce r8 and r9
2023-07-24fix handling of lar/lsl source registeriximeow
2023-07-23fix inconsistently-poreted memory access size of vcvt{,t}{sd,si}iximeow
2023-07-16forward 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!
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.
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
2021-12-17do not panic on negative compressed displacements, i mean it!!iximeow
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
2021-08-21fix negative relative branches (again!!! +- is bad!!!)iximeow
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.
2021-07-22fix incorrect decodes with scas and 67-prefixes1.0.4iximeow
2021-07-04handle vzeroupper/vzeroall, reject vzero* with nonzero vvvviximeow
2021-07-04support xacquire/xrelease prefixingiximeow
2021-07-04fix several incorrect tests and docs in 64- and 32-bit modesiximeow
2021-07-03update protected_mode to match long_mode docs, apisiximeow
2021-07-03more carefully test mmx operand sizesiximeow
2021-07-03be more strict about denying invalid operandsiximeow
2021-07-03support AMD `sev_snp`iximeow
2021-07-03add hresetiximeow
2021-07-01reallocate OperandCode, convert disparate registers to arrayiximeow
also remove redundant assignments of operand_count and some OperandSpec, bulk-assign all registers and operands on entry to `read_instr`. this all, taken together, shaves off about 7 cycles per decode.
2021-06-28round out x86_32 support - avx2, avx, memory sizesiximeow
2021-06-28protected mode memory sizesiximeow
also some long-mode cleanup in corresponding areas
2021-06-27protected-mode avx512iximeow
2021-03-22port long-mode decoder updates to protected-modeiximeow
2021-03-21update protected mode tests (this breaks them horribly. next commit will fix.)iximeow
2021-01-15support xchg AX/reg0.1.5iximeow
2021-01-15fix several missing or invalid decodings among 0f01 opcodesiximeow
* `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
2020-11-19fix decoding of rex-prefixed modrm+sib operands selecting index 0b100 and ↵0.1.4iximeow
base 0b101 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.
2020-10-27fix misdecode of instructions in opcode 0x800.1.3iximeow
2020-08-09adjust public interface: public items should all be stableiximeow
`OperandCode` (obviously) wildly varies depending on how i feel on a given week, so it's now hidden to avoid people depending on numerical values of its discriminants. `RegisterBank` got a similar treatment with a new `RegisterClass` struct that's suitable for public use.
2020-08-09reject instructions made invalid by lock prefixesiximeow
2020-08-09support salc, get segment register numbers rightiximeow
2020-08-09tests for cltsiximeow
2020-08-09add 32-bit-only instructionsiximeow
2020-08-09port updates to protected-mode decoderiximeow
2020-08-09update protected mode testsiximeow
2020-05-23fix important memory decode error in long modeiximeow
add tests for modrm/sib decoding, xsave extensions
2020-05-23add SHA, BMI1, and BMI2, complete XSAVE extension supportiximeow
additionally: cmpcxchg{8,16}b, rdrand, rdseed, rdpid, {rd,wr}{fs,gs}base
2020-05-21add sha, lzcnt, tsx, f16c, svm, movbe, adx, and prefetchw extensionsiximeow
also add builders to get decoders appropriate for specific microarchitectures from intel and amd * low-power architectures are not yet present
2020-05-03add width() to ask width of an x86 operandiximeow
this is largely wrong for memory operands, which require more invasive changes
2020-05-03that instruction is cwd, not cbdiximeow
2020-05-03bump yaxpeax-arch to 0.0.4, use AddressDiff, fix warnings in ffiiximeow
2020-03-22yaxpeax-x86 decodes in 32-bit mode nowiximeow