From: shriya <shriya@web>
Date: Wed, 6 Dec 2023 15:00:28 +0000 (+0000)
Subject: (no commit message)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=55b54edcf4cefd0cdc0103b1ad3bee318bace2a4;p=libreriscv.git

---

diff --git a/openpower/sv/cookbook/pospopcnt.mdwn b/openpower/sv/cookbook/pospopcnt.mdwn
index 0bd79e478..8d6e2a117 100644
--- a/openpower/sv/cookbook/pospopcnt.mdwn
+++ b/openpower/sv/cookbook/pospopcnt.mdwn
@@ -83,16 +83,20 @@ is to add *vertically*.  Part of the challenge is therefore
 to perform an appropriate transpose of the data, in blocks
 that suit the processor and the ISA capacity.
  
-
+Fig.3 depicts how the data is divided into blocks of 8*8-bit.
+ 
 <img src="/openpower/sv/cookbook/BlockDivision.drawio.svg"
      alt="pospopcnt" width="70%" />
 
-<br />
+Fig.4 shows that a transpose is needed on each block. 
+gbbd instruction is used for implementing the transpose 
+function.
 
 <img src="/openpower/sv/cookbook/Transpose.drawio.svg"
      alt="pospopcnt" width="60%" />
 
 
+
 <img src="/openpower/sv/cookbook/PopcountBlocks.drawio.svg"
      alt="pospopcnt" width="70%" />