[BOX32] Fix ARPL (0x63) semantics and add regression test#3513
Merged
ptitSeb merged 2 commits intoptitSeb:mainfrom Feb 14, 2026
Merged
[BOX32] Fix ARPL (0x63) semantics and add regression test#3513ptitSeb merged 2 commits intoptitSeb:mainfrom
ptitSeb merged 2 commits intoptitSeb:mainfrom
Conversation
In 32-bit mode, opcode 0x63 is ARPL Ew, Gw, not MOVSXD.\n\nImplement correct ARPL behavior (conditional update of RPL + ZF only) in the interpreter and ARM64 dynarec, and update opcode memory access decode for 32-bit mode.
Add an ARPL 0x63 regression test for BOX32 builds.\n\nThe test validates conditional RPL update and ZF-only flag behavior (other status flags preserved).
Owner
|
Oh, nice! Thanks for the analysis and fix! |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This PR fixes incorrect handling of opcode
0x63in 32-bit mode (BOX32): it isARPL Ew, Gw(notMOVSXD).Changes:
0x63in 32-bit mode.tests32/extensions/arplregression test.This addresses: #2739
Fixes #2739.