From 9bc8d85795b8a658917c5fed2e89b4f4b779c678 Mon Sep 17 00:00:00 2001
From: Adrian Conlon <Adrian.conlon@gmail.com>
Date: Tue, 12 Nov 2019 22:40:21 +0000
Subject: [PATCH] Tidy the Z80 RES implementation a little.

Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
---
 Z80/src/Z80.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Z80/src/Z80.cpp b/Z80/src/Z80.cpp
index ae2b7de..11597bb 100644
--- a/Z80/src/Z80.cpp
+++ b/Z80/src/Z80.cpp
@@ -459,7 +459,7 @@ void EightBit::Z80::bit(uint8_t& f, const int n, const uint8_t operand) {
 uint8_t EightBit::Z80::res(const int n, const uint8_t operand) {
 	ASSUME(n >= 0);
 	ASSUME(n <= 7);
-	return operand & ~Chip::bit(n);
+	return clearBit(operand, Chip::bit(n));
 }
 
 uint8_t EightBit::Z80::set(const int n, const uint8_t operand) {