public void cmpa_ex()
    {
        int t,r;
    	t=EXTBYTE();
    	r = m6809.a - t;
    	CLR_NZVC();
    	SET_FLAGS8(m6809.a,t,r);
        if(m6809log!=null) fprintf(m6809log,"M6809#%d cmpa_ex :PC:%d,PPC:%d,A:%d,B:%d,D:%d,DP:%d,U:%d,S:%d,X:%d,Y:%d,CC:%d,EA:%d\n", cpu_getactivecpu(),m6809.pc,m6809.ppc,m6809.a,m6809.b,getDreg(),m6809.dp,m6809.u,m6809.s,m6809.x,m6809.y,m6809.cc,ea);
 
    }