Rainbow Electronics AT89C2051 - Manual (Page 7)

Microcontroller
5-53
Pint Sized Computer
Although tiny by any scale of measure, the Virtual machine
behaves the way you would expect any self respecting pro-
cessor to behave, virtual or not. More to the point, the Vir-
tual Machine in actuality is a fully functional computer sys-
tem. You would be hard pressed to find a smaller, fully
functional, computer with comparable capability that ade-
quately supports the C programming language.
Using surface mount manufacturing techniques, a fully
operational computer can be constructed to fit into an area
the size of a postage stamp. The Virtual Machine’s large
program memory space, combined with its secondary I
2
C
memory/peripheral bus, makes the architecture suitable for
handling a number of relatively ambitious embedded
projects. Its minuscule size allows it to be placed any-
where.
Sources
If you are interested in experimenting with the Virtual
Machine concept, a fully operational PC based Virtual
Machine simulator, C compiler with libraries, and assem-
bler are available for downloading from the the Dunfield
Development Systems bulletin board at (613) 256-6289.
For availability of the Virtual Machine processor, develop-
ment system, and support software contact Mid-Tech Com-
puting Devices USA; P.O. Box 218; Stafford, CT 06075
(860) 684-2442.
To obtain the listing 1 and listing 2 codes, please download
from Atmel’s Web Site or BBS.