DEB
#define DEB(x,y) if (i596_debug & (x)) y
#define DEB(x, y) if (i596_debug & (x)) { y; }
#define DEB(x) x
#define DEB(x)
#define DEB(x) x
#define DEB(x)
DEB(
#define DEB(a) a
#define DEB(a)