From: Dmitry Selyutin <dmitry.selyutin@3mdeb.com>
Date: Sat, 4 Sep 2021 18:05:40 +0000 (+0000)
Subject: comparefixed: switch cmpeqb to XLEN
X-Git-Tag: xlen-bcd~7
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=50d4746ad7b654efd29afe0a4eae8c78b41ffd8a;p=openpower-isa.git

comparefixed: switch cmpeqb to XLEN
---

diff --git a/openpower/isa/comparefixed.mdwn b/openpower/isa/comparefixed.mdwn
index ea4248cb..af92870a 100644
--- a/openpower/isa/comparefixed.mdwn
+++ b/openpower/isa/comparefixed.mdwn
@@ -127,15 +127,10 @@ X-Form
 Pseudo-code:
 
     src1 <- GPR[RA]
-    src1 <- src1[56:63]
-    match <- ((src1 = (RB)[00:07]) |
-              (src1 = (RB)[08:15]) |
-              (src1 = (RB)[16:23]) |
-              (src1 = (RB)[24:31]) |
-              (src1 = (RB)[32:39]) |
-              (src1 = (RB)[40:47]) |
-              (src1 = (RB)[48:55]) |
-              (src1 = (RB)[56:63]))
+    src1 <- src1[XLEN-8:XLEN-1]
+    match <- 0b0
+    for i = 0 to ((XLEN/8)-1)
+        match <- (match | (src1 = (RB)[8*i:8*i+7]))
     CR[4*BF+32] <- 0b0
     CR[4*BF+33] <- match
     CR[4*BF+34] <- 0b0