From 16b4fbd209d71bdb1a066bacd03a9ccd1cf3d16c Mon Sep 17 00:00:00 2001
From: Jan Tuomi <jans.tuomi@gmail.com>
Date: Mon, 10 Apr 2023 15:02:50 +0300
Subject: Add stack ops, subroutines

---
 src/ucode.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/ucode.py')

diff --git a/src/ucode.py b/src/ucode.py
index 10dd853..9745a7e 100755
--- a/src/ucode.py
+++ b/src/ucode.py
@@ -65,8 +65,8 @@ ucode = [
   # BRI 1000 XFFI IIII IIII
   branch([*fetch, US_RS, 0, 0, 0, 0, 0],
          [*fetch, IM_M|LI_OE|PC_IE, US_RS, 0, 0, 0, 0]),
-  # NOP 1001 XXXX XXXX XXXX
-  nop(),
+  # LPC 1001 TTTX XXXX XXXX
+  not_branch([*fetch, PC_OE|RW_IE, US_RS, 0, 0, 0, 0]),
   # NOP 1010 XXXX XXXX XXXX
   nop(),
   # NOP 1011 XXXX XXXX XXXX
-- 
cgit v1.3