From ff94c18a919a1160288433e5d3e2f2b2a6f907d4 Mon Sep 17 00:00:00 2001
From: SarahW <pcem@pcem-emulator.co.uk>
Date: Sat, 24 Feb 2018 14:44:24 +0000
Subject: [PATCH] PIT readback of timer with mode 3 and gate disabled now reads
 the counter directly rather than converting the emulator timer value. Fixes
 101 error on Compaq Portable Plus.

---
 src/pit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pit.c b/src/pit.c
index e479f31..90dab32 100644
--- a/src/pit.c
+++ b/src/pit.c
@@ -310,7 +310,7 @@ static int pit_read_timer(PIT *pit, int t)
 {
         timer_clock();
 //        pclog("pit_read_timer: t=%i using_timer=%i m=%i\n", t, pit.using_timer[t], pit.m[t]);
-        if (pit->using_timer[t])
+        if (pit->using_timer[t] && !(pit->m[t] == 3 && !pit->gate[t]))
         {
                 int read = (int)((pit->c[t] + ((1 << TIMER_SHIFT) - 1)) / PITCONST) >> TIMER_SHIFT;
                 if (pit->m[t] == 2)