Emulate BBC Model B and Master computers.
Changed screen mode detection routine so that on RISC OS 6 it now uses BeebIt's own mode 7 emulation.
Correctly implements CLI/SEI/PLP so Empire Strikes Back will run.
BeebIt is a freeware BBC Micro computer emulator for RISC OS versions 3.0 and above.
It emulates Acorn BBC Model B, BBC Model B+ and BBC Master 128 computers.