24 Jun
2003
24 Jun
'03
8:40 p.m.
In message FD2AC9A020DDD51194710008C7089B20053D4CA9@dlee17.itg.ti.com you wrote:
possibly reset....instead it just locked up. Tracing the code I see that the exception code in start.S for all ARM ports uses r8 as a frame pointer. This is NOT allowed as r8 is reserved as the global data pointer....given the way the ARM code currently operates I don't see why this has to be, but
What is it you don't see? Why we reserve R8 for global data?
it might be handy if someone was trying to use C before the memory controller was up (this is not the case for the ARM code today).
...but may change any day. As soon as there is a little time left for "nice to have" things.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
Program maintenance is an entropy-increasing process, and even its
most skilfull execution only delays the subsidence of the system into
unfixable obsolescence. - Fred Brooks, "The Mythical Man Month"