Re: Why is __cpu_simple_lock_t an unsigned char?

[Matt Thomas <matt%3am-software.com@localhost>]

On Nov 5, 2008, at 11:21 PM, Heikki Krogerus wrote:

> This probably is a silly quistion, I know, but how should the ldrex/ 
> strex be
> handled in the future? Our ARM1136JF-S does not seem to support  
> ldrexb/strexb
> instructions.
>
> Thumb does not support the swp instruction.

because armv4 and later have swpb (swap byte).