Bug 356

Summary:	fu POWER9 pipeline unit tests need to test RA=0
Product:	Libre-SOC's first SoC	Reporter:	Luke Kenneth Casson Leighton <lkcl>
Component:	Source Code	Assignee:	Luke Kenneth Casson Leighton <lkcl>
Status:	CONFIRMED ---
Severity:	enhancement	CC:	libre-soc-bugs
Priority:	---
Version:	unspecified
Hardware:	PC
OS:	Mac OS
See Also:	https://bugs.libre-soc.org/show_bug.cgi?id=334 https://bugs.libre-soc.org/show_bug.cgi?id=336 https://bugs.libre-soc.org/show_bug.cgi?id=350
NLnet milestone:	---	total budget (EUR) for completion of task and all subtasks:	0
budget (EUR) for this task, excluding subtasks' budget:	0	parent task for budget allocation:
child tasks for budget allocation:		The table of payments (in EUR) for this task; TOML format:
Bug Depends on:
Bug Blocks:	310, 313, 314, 315, 323, 324, 325, 330, 339, 348, 383

Description Luke Kenneth Casson Leighton 2020-05-28 11:43:29 BST

some of the instructions act differently when RA=0 (this means pass in a
zero-immediate to RA rather than the contents of register 0).  tests
for both zero-immediate-A and also for actually ensuring that RA=0 reads
register 0 are needed.

see https://git.libre-soc.org/?p=soc.git;a=blob;f=src/soc/fu/alu/test/test_pipe_caller.py;hb=HEAD

and others in soc/fu/*/test/test_pipe_caller.py

Comment 1 Luke Kenneth Casson Leighton 2020-07-22 15:49:16 BST