From ae7fd6a060c9bb1ce9db83f8eb23fa19e8fa0e7a Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Wed, 14 Dec 2022 22:26:37 -0600
Subject: Implement branch history (simulation only)

---
 sim/sim.py | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'sim')

diff --git a/sim/sim.py b/sim/sim.py
index 03d45c7..b45ca7e 100755
--- a/sim/sim.py
+++ b/sim/sim.py
@@ -73,12 +73,18 @@ all_regs = [
     ('far', 'far'),
     ('fsr', 'fsr'),
     ('dacr', 'dacr'),
+    ('bh0', 'bh0'),
+    ('bh1', 'bh1'),
+    ('bh2', 'bh2'),
+    ('bh3', 'bh3'),
     ]
 
 regs = {}
 read_reg = lambda r: regs.setdefault(r, 0)
 
+do_output = None
 output_buffer = None
+
 def out(*args, **kwargs):
     global output_buffer
 
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