Merge pull request #108 from ybc-alkaid/main

revise the SPMP spec according to review comments

Merge pull request #107 from ybc-alkaid/main

clarify behavior of reserved xiregs

Merge pull request #105 from ybc-alkaid/main

change specification state to Frozen

Merge pull request #88 from ybc-alkaid/main

update version number

Merge pull request #80 from ybc-alkaid/main

Polish the specification.

Merge pull request #68 from ybc-alkaid/main

polish the text and remove legacy content

Merge pull request #58 from ybc-alkaid/main

v1.0.0-rc3

Merge pull request #51 from ybc-alkaid/main

v1.0.0-rc2 regarding feedback from the ARC and TG

Merge pull request #43 from ybc-alkaid/main

update the spec according to feedbacks from the task group and second-round ARC review

Merge pull request #40 from ybc-alkaid/main

refine accessing logic of spmp[i]cfg.L