Bug 1043

Summary:	ls009 research: DCT REMAP may have redundant modes
Product:	Libre-SOC's first SoC	Reporter:	Luke Kenneth Casson Leighton <lkcl>
Component:	Specification	Assignee:	Luke Kenneth Casson Leighton <lkcl>
Status:	RESOLVED FIXED
Severity:	enhancement	CC:	libre-soc-isa
Priority:	---
Version:	unspecified
Hardware:	Other
OS:	Linux
See Also:	https://bugs.libre-soc.org/show_bug.cgi?id=1042 https://bugs.libre-soc.org/show_bug.cgi?id=1027
NLnet milestone:	NLnet.2022-08-051.OPF	total budget (EUR) for completion of task and all subtasks:	2000
budget (EUR) for this task, excluding subtasks' budget:	2000	parent task for budget allocation:	1011
child tasks for budget allocation:		The table of payments (in EUR) for this task; TOML format:	[red] amount = 1000 submitted = 2023-06-24 paid = 2023-06-28 [lkcl] amount = 1000 submitted = 2023-06-22
Bug Depends on:
Bug Blocks:	1042

Description Luke Kenneth Casson Leighton 2023-03-28 01:33:14 BST

the ls009 RFC is underway but some of the REMAP Modes
need a comprehensive review to check if they are redundant,
and if so to remove them.

this is important because the svshape instruction is under
pressure and there are future capabilities that need adding.

Comment 1 Luke Kenneth Casson Leighton 2023-04-02 23:16:08 BST

sorted, completed review and removed the two redundant options.
a number of unit tests were removed, they had duplicates with
the more efficient DCT modes.  one setvl unit test also used
the legacy mode .