From: lkcl <lkcl@web>
Date: Sat, 22 Apr 2023 08:44:16 +0000 (+0100)
Subject: (no commit message)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d1b78293162c318c51d4c287f44bd50055a0bdea;p=libreriscv.git

---

diff --git a/openpower/sv/svp64_quirks.mdwn b/openpower/sv/svp64_quirks.mdwn
index e855ab66f..75f3d98bd 100644
--- a/openpower/sv/svp64_quirks.mdwn
+++ b/openpower/sv/svp64_quirks.mdwn
@@ -662,14 +662,7 @@ As pointed out in the [[sv/ldst]] page there is limited space in only
 * LD/ST Immediate has no individual control over src/dest zeroing,
   whereas LD/ST Indexed does.
 * Post-Increment is not possible with Saturation or Data-Dependent Fail-First
-
-These are not insurmountable problems: there do exist workarounds.
-For example it is possible to set up Matrix REMAP to perform the same
-job as Pack/Unpack, at which point the LD/ST "Saturation" mode may
-be used, saving on costly intermediary registers *at double the LD
-width* if a Saturated MV had to be involved. Store on the other hand
-it is extremely likely that an arithmetic operation already computed
-a Saturated Vector of results, so is less of a problem than Load.
+* Element-Strided LD/ST Indexed is not possible with Data-Dependent Fail-First.
 
 Also, the LD/ST Indexed Mode can be element-strided (RB as
 a Scalar, times