this new information to correctly resolve destination (b<mark) references. See the email archives for further discussion on why
this is required.
Hopefully this should finally resolve the Fcode backward branch problem; at least all previous incorrect resolutions now appear
correct and the Fcode evaluator no longer crashes or gets stuck in a loop while attempting to boot Milax.
git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@641 f158a5a8-5612-0410-a976-696ce0be7e32
According to the specification, the destination for a backwards Fcode branch must be resolved from the bottom rather than the
top of the cstack. The existing version of the code was simply doing a swap, and so nesting any branches within a backward branch
would fail since the wrong destination would be resolved from the stack.
This patch adds a new cstack-startdepth variable to keep track of the cstack base location within an execution context
(setup-tmp-comp and execute-tmp-comp) and alters the backward branches to make use of it.
With this patch in place, Milax under Qemu doesn't crash anymore but sits in an infinite loop reading sectors from the CDROM.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@638 f158a5a8-5612-0410-a976-696ce0be7e32
- dummy implementations for peek, poke, ms and get-msecs
git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@617 f158a5a8-5612-0410-a976-696ce0be7e32
Mark Cave-Ayland