From 7c9455251d7275cc63217c0fe39fcaef13edffab Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Fri, 19 Aug 2016 17:34:01 -0400
Subject: [PATCH] Fixed reload for the lower-frequency audio channels.

---
 Components/6560/6560.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Components/6560/6560.cpp b/Components/6560/6560.cpp
index bd07fa194..6d56c386c 100644
--- a/Components/6560/6560.cpp
+++ b/Components/6560/6560.cpp
@@ -97,7 +97,7 @@ static uint8_t noise_pattern[] = {
 
 #define shift(r) _shift_registers[r] = (_shift_registers[r] << 1) | (((_shift_registers[r]^0x80)&_control_registers[r]) >> 7)
 #define increment(r) _shift_registers[r] = (_shift_registers[r]+1)%8191
-#define update(r, m, up) _counters[r]++; if((_counters[r] >> m) == 0x7f) { up(r); _counters[r] = _control_registers[r]&0x7f; }
+#define update(r, m, up) _counters[r]++; if((_counters[r] >> m) == 0x7f) { up(r); _counters[r] = (unsigned int)(_control_registers[r]&0x7f) << m; }
 
 void Speaker::get_samples(unsigned int number_of_samples, int16_t *target)
 {