commit 800f1f7b0393d61fb03aad776e79e8f801014512
Author: Thomas Bernard <miniupnp@free.fr>
Date:   Sat Nov 23 16:32:04 2019 +0100

    silent "unused parameter" warning
    
    6502.c:379:53: warning: unused parameter 'object' [-Wunused-parameter]
      379 | #define INSTRUCTION(name) static zuint8 name(M6502 *object)
          |                                              ~~~~~~~^~~~~~
    6502.c:766:1: note: in expansion of macro 'INSTRUCTION'
      766 | INSTRUCTION(illegal) {return 2;}
          | ^~~~~~~~~~~

diff --git a/sources/6502.c b/sources/6502.c
index 9a95cf0..6b8f8d5 100644
--- a/sources/6502.c
+++ b/sources/6502.c
@@ -763,7 +763,7 @@ INSTRUCTION(brk)
 	}
 
 
-INSTRUCTION(illegal) {return 2;}
+INSTRUCTION(illegal) {(void)object;	return 2;}
 
 
 /* MARK: - Instruction Function Table */