[fedora-arm] Thumb2 versus Thumb

[Dan Horák]

Andrew Haley píše v Po 16. 04. 2012 v 09:17 +0100: 
> On 04/15/2012 07:01 PM, Steve McIntyre wrote:
> > On Sun, Apr 15, 2012 at 11:42:41AM +0100, Andrew Haley wrote:
> >> Does anyone here know the difference between Thumb2 and Thumb?  I could
> >> extract it from the ISA docs, but I wondered if there was a summary
> >> somewhere.
> > 
> > At the core: Thumb is all 16-bit, Thumb2 is a mix of 16- and 32-bit
> > instructions to allow for more features.
> 
> Sure, I get that, but I've never seen a sid-by-side list of the
> instructions and their formats.  Sure, I could extract it from the ISA
> manual.

Pavel Tisnovsky is writing a series of rather detailed articles about
ARM and the last ones were dedicated to Thumb and Thumb2 [1],
unfortunately it's in czech only :-(


Dan

[1]
http://www.root.cz/clanky/instrukcni-sada-thumb-2-u-mikroprocesoru-arm/