tree 1e9d80c6ba3d5716903acfed6b3e3ac409c0c1a2
parent 7eb2c1126be93152fb5ca8c56a94397b30cdbb65
author Rupert Swarbrick <rswarbrick@lowrisc.org> 1597679200 +0100
committer Rupert Swarbrick <rswarbrick@gmail.com> 1597856587 +0100

[otbn] Avoid getting stuck in otbn-rig

This avoids painting ourselves into a corner with straight-line
instructions. Once we start generating jumps, there's a possibility of
ending up with e.g. a current PC of 100 and some other instructions
already defined at address 104. Then we *have* to generate a jump or
an ECALL, or we'll crash into stuff that's already defined (causing
infinite loops and other badness when you try to run the test!).

Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>