Commit Graph
3 Commits
Author SHA1 Message Date
oskarlgsandClaude Opus 5.5 206aaa56cb fix(relinker): decode near branches with an operand-size prefix as AMD does
66 E8, 66 E9 and 66 0F 80-8F without REX.W take a 16-bit displacement on
AMD processors, the console included. Every near relative branch with that
prefix truncates its target to 16 bits, so the decoder reports no branch
target for it and stubs refuse to move it.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016TFMtUC4L4wMS4eeEqaNSR
2026-10-17 20:58:29 +00:00
Claude feb19a844d fix(relinker): decode 3DNow! instructions with their ModRM and opcode suffix
0F 0F was decoded as a two-byte instruction. 3DNow! instructions are
0F 0F ModRM [SIB] [displacement] imm8, the trailing byte selecting the
operation (AMD64 Architecture Programmer's Manual Volume 3, Appendix A,
3DNow! opcodes).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VZWLdTjf1S57iLgn2rcaFb
2026-10-11 22:21:32 +00:00
Arvind FrøilandandClaude Opus 5.5 0858f01429 test(relinker): check decoder lengths against an LLVM-generated table
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-08 21:09:18 +09:00