Why program switches from thumb to ARM

Note: This was originally posted on 24th November 2011 at http://forums.arm.com Hi Everyone I've got beginner question (hope this is right place to do it, if not please direct me). I 've prepared whole...
Why program switches from thumb to ARM

Note: This was originally posted on 24th November 2011 at http://forums.arm.com Hi Everyone I've got beginner question (hope this is right place to do it, if not please direct me). I 've prepared whole...
Why thumb code can only access r0-r7?

Hi Sir, I want to know why thumb code can only access r0-r7, which described in ATPCS? Thanks and best regards, Wenchuan
Why thumb code can only access r0-r7?

Hi Sir, I want to know why thumb code can only access r0-r7, which described in ATPCS? Thanks and best regards, Wenchuan
Why does Cortex-R kernel only support Thumb-2?

Why does Cortex-R kernel only support Thumb-2? Is this attribute has some advantages to the real-time response time?