From 65b571997dd6d8235c5c2186650726fbefe65f49 Mon Sep 17 00:00:00 2001 From: Luke Kenneth Casson Leighton Date: Fri, 24 Jun 2022 15:17:27 +0100 Subject: [PATCH] sigh, bm not mode argument to bmask plus the offsets (sub-fields) of bm were completely wrong --- openpower/isa/av.mdwn | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/openpower/isa/av.mdwn b/openpower/isa/av.mdwn index 6d13b90c..862c26ec 100644 --- a/openpower/isa/av.mdwn +++ b/openpower/isa/av.mdwn @@ -174,15 +174,15 @@ Special Registers Altered: BM2-Form -* bmask RT,RA,RB,mode +* bmask RT,RA,RB,bm Pseudo-code: if _RB = 0 then mask <- [1] * XLEN - else mask = (RB) + else mask <- (RB) a1 <- (RA) & mask - if mode[1] then a1 <- ¬ra - mode2 <- mode[2:3] + if bm[0] then a1 <- ¬ra + mode2 <- bm[1:2] if mode2 = 0 then a2 <- (¬ra)+1 if mode2 = 1 then a2 <- ra-1 if mode2 = 2 then a2 <- ra+1 @@ -190,7 +190,7 @@ Pseudo-code: a1 <- a1 & mask a2 <- a2 & mask # select operator - mode3 <- mode[3:4] + mode3 <- bm[3:4] if mode3 = 0 then result <- a1 | a2 if mode3 = 1 then result <- a1 & a2 if mode3 = 2 then result <- a1 ^ a2 -- 2.30.2