From 2e2d2b30046f8146a25d93d3ce1e34f12a000f41 Mon Sep 17 00:00:00 2001
From: Andy CA6JAU <juribeparada@gmail.com>
Date: Wed, 4 Jul 2018 23:42:07 -0400
Subject: [PATCH] Optimizing bit memory ring buffer

---
 BitRB.cpp | 17 +++++++++++------
 version.h |  2 +-
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/BitRB.cpp b/BitRB.cpp
index 0aa8ae5..0b56a65 100644
--- a/BitRB.cpp
+++ b/BitRB.cpp
@@ -21,6 +21,11 @@ Boston, MA  02110-1301, USA.
 
 #include "BitRB.h"
 
+const uint8_t BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U};
+
+#define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7])
+#define READ_BIT1(p,i)    (p[(i)>>3] & BIT_MASK_TABLE[(i)&7])
+
 CBitRB::CBitRB(uint16_t length) :
 m_length(length),
 m_bits(NULL),
@@ -30,8 +35,8 @@ m_tail(0U),
 m_full(false),
 m_overflow(false)
 {
-  m_bits    = new uint8_t[length];
-  m_control = new uint8_t[length];
+  m_bits    = new uint8_t[length / 8U];
+  m_control = new uint8_t[length / 8U];
 }
 
 uint16_t CBitRB::getSpace() const
@@ -68,8 +73,8 @@ bool CBitRB::put(uint8_t bit, uint8_t control)
     return false;
   }
 
-  m_bits[m_head]    = bit;
-  m_control[m_head] = control;
+  WRITE_BIT1(m_bits, m_head, bit);
+  WRITE_BIT1(m_control, m_head, control);
 
   m_head++;
   if (m_head >= m_length)
@@ -86,8 +91,8 @@ bool CBitRB::get(uint8_t& bit, uint8_t& control)
   if (m_head == m_tail && !m_full)
     return false;
 
-  bit     = m_bits[m_tail];
-  control = m_control[m_tail];
+  bit     = READ_BIT1(m_bits, m_tail);
+  control = READ_BIT1(m_control, m_tail);
 
   m_full = false;
 
diff --git a/version.h b/version.h
index 9f0ada2..128b230 100644
--- a/version.h
+++ b/version.h
@@ -24,7 +24,7 @@
 
 #define VER_MAJOR       "1"
 #define VER_MINOR       "4"
-#define VER_REV         "0"
+#define VER_REV         "1"
 #define VERSION_DATE    "20180705"
 
 #if defined(ZUMSPOT_ADF7021)