Basic condition code guide: CMP src,dest dest < src LT CS dest <= src LE LS dest == src EQ EQ dest != src NE NE dest > src GT HI dest >= src GE CC signed--^ ^--unsigned TST dest dest == 0 EQ dest != 0 NE dest >= 0 PL dest < 0 MI BTST #bit,dest bit == 1 NE bit == 0 EQ VS - overflow VC - no overflow RA - branch always Enjoy! -Kyzer/CSG, 49 Fairview Road, AB22 8ZG, Scotland.