From: Jacob Lifshay <programmerjake@gmail.com>
Date: Mon, 6 Nov 2023 02:15:03 +0000 (-0800)
Subject: detect duplicate instructions
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4c35231597f4400787c504373e58c24fa439196d;p=openpower-isa.git

detect duplicate instructions
---

diff --git a/src/openpower/decoder/pseudo/pagereader.py b/src/openpower/decoder/pseudo/pagereader.py
index e0c6cf20..736034f4 100644
--- a/src/openpower/decoder/pseudo/pagereader.py
+++ b/src/openpower/decoder/pseudo/pagereader.py
@@ -359,6 +359,9 @@ class ISA:
         op = copy(d)
         op['regs'] = regs
         op['opcode'] = opcode
+        if opcode in self.instr:
+            raise IOError("Duplicate instruction: %s\nin both %s and %s" % (
+                opcode, self.instr[opcode].page, op['page']))
         self.instr[opcode] = Ops(**op)
 
         # create list of instructions by form