From 60847519361ca7dbd2b10ee584cb07d5732bc51f Mon Sep 17 00:00:00 2001
From: AJR <ajrhacker@users.noreply.github.com>
Date: Mon, 11 Dec 2017 02:43:32 -0500
Subject: [PATCH] Add BITSWAP4 and BITSWAP12 for future use (nw)

---
 src/emu/emucore.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/emu/emucore.h b/src/emu/emucore.h
index 1782ac8726d..212bf31c849 100644
--- a/src/emu/emucore.h
+++ b/src/emu/emucore.h
@@ -263,7 +263,9 @@ template <unsigned B, typename T, typename... U> T bitswap(T val, U... b)
 }
 
 // explicit versions that check number of bit position arguments
+template <typename T, typename... U> constexpr T BITSWAP4(T val, U... b) {  return bitswap<4U>(val, b...); }
 template <typename T, typename... U> constexpr T BITSWAP8(T val, U... b) {  return bitswap<8U>(val, b...); }
+template <typename T, typename... U> constexpr T BITSWAP12(T val, U... b) {  return bitswap<12U>(val, b...); }
 template <typename T, typename... U> constexpr T BITSWAP16(T val, U... b) {  return bitswap<16U>(val, b...); }
 template <typename T, typename... U> constexpr T BITSWAP24(T val, U... b) {  return bitswap<24U>(val, b...); }
 template <typename T, typename... U> constexpr T BITSWAP32(T val, U... b) {  return bitswap<32U>(val, b...); }