THE BBC EMULATOR 0.3
This program emulates, or rather attempts to emulate, the behaviour 
of a BBC Microcomputer Model B with 32K of RAM, a paged ROM board 
with up to 16 paged ROMs and sideways RAM capability, and two disk
 drives. It does not support tapes, joysticks, serial or parallel
 port, speech, the ADC, the 1MHz bus, or anything else which involves 
plugging in hardware not mentioned above. It does emulate the 6845
 and Video ULA chips, the System and User 6522 VIAs (with some exceptions)
 and the sound chip. This is all the hardware that is required to get
 most software working.