fix(asm): resolve negative numeric PC-relative jumps

Assisted-by: GLM 5.3 Flash
2026-09-23 21:02:50 +02:00
parent 8eed54b3da
commit 7b11c62f53
3 changed files with 74 additions and 1 deletions
@@ -28,6 +28,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  to the document that started it, so renaming a symbol used in a second
  file moved that file's text into the first.  Each edit now applies to the
  document it was collected in.
+- **Negative numeric PC-relative jumps.**  `JMP -3(PC)`, the shape the
+  runtime's exit loops write (sys_linux_amd64.s, sys_netbsd_amd64.s),
+  resolved to nothing: only the forward forms counted.  A negative count
+  now walks the same instruction statements backwards, labels excluded,
+  byte-identical with the toolchain.

 ## [0.35.0] - 2026-09-22