An MMU effectively performs virtual memory management, handling at the same time memory protection, arbitration and, in simpler computer architectures ( especially 8-bit systems ), bank switching.
32.
The Theory of Operation described the details of the operation of the system, including the CRT controller, floppy disk controller, serial communications, memory bank switching, and connector pinouts.
33.
Since early " Revision A " Apple IIe motherboards were incapable of supporting the bank switching needed for the enhanced graphics mode, the block needed to be removed to disable the feature.
34.
Most other computers of the time with more than 64 KB of memory addressing were limited to bank switching where much if not all the 64 KB was simply swapped for another section of memory.
35.
A larger problem was that the designers of the MSX standard bank switching protocol did not prescribe to hardware manufacturers in which banks the cartridges and, more importantly, the RAM should be found.
36.
The solutions are for ATM, POS, Inter Bank and Multi Bank Switching & Controllers, Internet Banking, Inward & Outward Remittance Systems, Reconciliation and Settlement and a variety of other related solutions.
37.
To fit potentially much more memory than the 384 kB of free address space would allow, a bank switching scheme was devised, where only selected parts of the additional memory would be accessible at the same time.
38.
After Atari installed a circuit to fix a compatibility issue with the 2600 version of " Dark Chambers ", it subsequently caused incompatibility with the Supercharger and some other games that use the FE bank switching method.
39.
"' Bank switching "'is a technique used in computer design to increase the amount of usable memory beyond the amount directly addressable by the start a system from diskette could be switched out when no longer needed.
40.
:: : I would not agree that tighter computer resources are particularly hard to write unless we are talking 14-bit CPU with bank switching trying to handle floating point in realtime with only a few kB of flash available.
