public void rorb()
    {
        int r;
    	r = ((m6809.cc & CC_C) << 7)&0xFF;
    	CLR_NZC();
    	m6809.cc |= (m6809.b & CC_C);
    	r = (r | m6809.b >> 1)&0xFF;
    	SET_NZ8(r);
    	m6809.b = r&0xFF;
        if(m6809log!=null) fprintf(m6809log,"M6809#%d rorb :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);    
    }