diff options
Diffstat (limited to 'ports/sysdeps/arm/arm-features.h')
| -rw-r--r-- | ports/sysdeps/arm/arm-features.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/arm-features.h b/ports/sysdeps/arm/arm-features.h index 31801cf408..139a40368b 100644 --- a/ports/sysdeps/arm/arm-features.h +++ b/ports/sysdeps/arm/arm-features.h @@ -36,4 +36,8 @@ at runtime (or that we never care about its state) and so need not be checked for. */ +/* A more-specific arm-features.h file may define ARM_ALWAYS_BX to indicate + that instructions using pc as a destination register must never be used, + so a "bx" (or "blx") instruction is always required. */ + #endif /* arm-features.h */ |