fix comment

R=rsc
CC=golang-dev
https://golang.org/cl/203053

diff --git a/src/pkg/runtime/runtime.h b/src/pkg/runtime/runtime.h
index 2182ef31913608d89c097aa1845935cd13a2d8af..2d6d42ee62796c7df71e9ab0a61f89d9fbe45e06 100644 (file)
--- a/src/pkg/runtime/runtime.h
+++ b/src/pkg/runtime/runtime.h
@@ -74,7 +74,7 @@ typedef       struct  Hchan           Hchan;
  *
  * amd64: allocated downwards from R15
  * x86: allocated upwards from 0(FS)
- * arm: allocated upwards from R9
+ * arm: allocated downwards from R10
  *
  * every C file linked into a Go program must include runtime.h
  * so that the C compiler knows to avoid other uses of these registers.