From c02584440bef747f0bf5668778533dbf0b2ab75b Mon Sep 17 00:00:00 2001
From: Bob Supnik <Bob@supnik.org>
Date: Sun, 19 Feb 2017 21:39:02 -0800
Subject: [PATCH] PDP8: Change RESET CPU to clear L'AC

As discussed in #400 and described in the maintenance manuals and/or
schematics for all five PDP-8 models (8, 8/S, 8/I, 8/E, 8/A).
---
 PDP8/pdp8_cpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/PDP8/pdp8_cpu.c b/PDP8/pdp8_cpu.c
index 3597cc49..743fd51a 100644
--- a/PDP8/pdp8_cpu.c
+++ b/PDP8/pdp8_cpu.c
@@ -25,6 +25,7 @@
 
    cpu          central processor
 
+   13-Feb-17    RMS     RESET clear L'AC, per schematics
    28-Jan-17    RMS     Renamed switch register variable to SR, per request
    18-Sep-16    RMS     Added alternate dispatch table for non-contiguous devices
    17-Sep-13    RMS     Fixed boot in wrong field problem (Dave Gesswein)
@@ -1372,6 +1373,7 @@ return reason;
 
 t_stat cpu_reset (DEVICE *dptr)
 {
+saved_LAC = 0;
 int_req = (int_req & ~INT_ION) | INT_NO_CIF_PENDING;
 saved_DF = IB = saved_PC & 070000;
 UF = UB = gtf = emode = 0;