From: Cesar Strauss <cestrauss@gmail.com>
Date: Sun, 7 Mar 2021 20:55:39 +0000 (-0300)
Subject: Fix missing NIA update on ISACaller
X-Git-Tag: convert-csv-opcode-to-binary~89
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bdfa4c5dadd75b197cf009b5ae95f5e3f17bc176;p=soc.git

Fix missing NIA update on ISACaller

The effect of this bug was mostly hidden because NIA is later updated at
the end of the SV Loop, in call(). However, in a VL==0 loop, the effect
is apparent, as PC is incremented by 4 instead of 8.
---

diff --git a/src/soc/decoder/isa/caller.py b/src/soc/decoder/isa/caller.py
index 00f5c8eb..849879b3 100644
--- a/src/soc/decoder/isa/caller.py
+++ b/src/soc/decoder/isa/caller.py
@@ -1130,6 +1130,7 @@ class ISACaller:
                               pfx.insn[7].value == 0b1 and
                               pfx.insn[9].value == 0b1)
         self.pc.update_nia(self.is_svp64_mode)
+        self.namespace['NIA'] = self.pc.NIA
         if not self.is_svp64_mode:
             return