From: lkcl Date: Wed, 28 Sep 2022 01:10:35 +0000 (+0100) Subject: (no commit message) X-Git-Tag: opf_rfc_ls005_v1~275 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ca29af1117e2ae633ef838a83f2cc3f402ceadb7;p=libreriscv.git --- diff --git a/openpower/sv/remap.mdwn b/openpower/sv/remap.mdwn index 472dfc6ff..44c0f7992 100644 --- a/openpower/sv/remap.mdwn +++ b/openpower/sv/remap.mdwn @@ -888,8 +888,9 @@ the starting Vector point of the operation to the next register it can be seen that the offset of 0-7 would be sufficient. Unfortunately however some operations are EXTRA2-encoded it is **not possible** to increase the GPR/FPR register number by one, because EXTRA2-encoding -of GPR/FPR Vector numbers are restricted to even numbering. The -additional offset range (8-15) helps overcome this limitation.* +of GPR/FPR Vector numbers are restricted to even numbering. +For CR Fields the EXTRA2 encoding is even more sparse. +The additional offset range (8-15) helps overcome these limitations.* *Hardware Implementor's note: with the offsets only being immediates and with register numbering being entirely immediate as well it is