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Memory Map

Memory map (hardware):
(taken from Keith Wilkins 'internal.txt')

0000-7fff

Cartridge ROM Space, the CART line is also gated with ~E to produce a signal that can be fed directly to the output enable of a ROM. This address range is not gated with the read-write line but this line is fed to the cartridge connector. (r/w)

8000-C7FF

Unmapped space.

C800-CFFF

Vectrex RAM Space 1Kx8, shadowed twice. (r/w)

D000-D7FF

6522VIA shadowed 128 times (r/w)

D800-DFFF

Don't use this area. Both the 6522 and RAM are selected in any reads/writes to this area.

E000-FFFF

System ROM Space 8Kx8 (r/w)

C800-C880

is RAM used by the vectrex BIOS for housekeeping. (see appendix B) CBEA-CBFE is RAM used by the vectrex BIOS for housekeeping. (see appendix B)

C880-CBEA

is RAM that can be used by the programmer!

E000-EFFF

is ROM, the built in game MINE STORM.

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