rflags included in register definitions for x86

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
45/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
cpp
Domain
reverse-engineering

Research direction

Locate the x86 register definitions and the corresponding full-width register list, then compare the x86 entries with x86-64. Confirm the intended architecture-specific treatment of rflags and bnd0-3; done means x86 no longer includes invalid or inconsistent register entries.

Written by the indexing model from the issue text.

Description

Version and Platform (required):

  • Binary Ninja Version: 5.3.8622-dev
  • Edition: Commercial
  • OS: MacOS
  • OS Version: Tahoe 26.1
  • CPU Architecture: M2

Bug Description:
For the x86 architecture, the rflags register is included in the list of registers but is not included in the list of full width registers.

I don't believe that rflags is a valid register for x86. It only exits for x86-64. The register should be removed for the x86 architecture.

I also noticed that bnd0-3 are included in the register definitions for x86 but are not included in the full width registers.

Dominant language
C++
Stars
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Forks
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Avg merge
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Merged PRs (30d)
19

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