From: Shriya Sharma <shriya@redsemiconductor.com>
Date: Wed, 22 Nov 2023 14:05:30 +0000 (+0000)
Subject: Added English language description for cbsdtd instruction
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=07a25fc48163d3adf3813bfb64222e4d124d3f7d;p=openpower-isa.git

Added English language description for cbsdtd instruction
---

diff --git a/openpower/isa/bcd.mdwn b/openpower/isa/bcd.mdwn
index 20e1fc24..0e926839 100644
--- a/openpower/isa/bcd.mdwn
+++ b/openpower/isa/bcd.mdwn
@@ -87,6 +87,17 @@ Pseudo-code:
       result[n+22:n+31] <- BCD_TO_DPD(src[n+20:n+31])
     RA <- result[64-XLEN:63]
 
+Description:
+
+    The low-order 24 bits of each word of register RS con-
+    tain six, 4-bit BCD fields which are converted to two
+    declets; each set of two declets is placed into the
+    low-order 20 bits of the corresponding word in RA. The
+    high-order 12 bits in each word of RA are set to 0.
+
+    If a 4-bit BCD field has a value greater than 9 the
+    results are undefined.
+
 Special Registers Altered:
 
     None