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[/] [zipcpu/] [trunk/] [rtl/] [core/] [memops.v] - Rev 36

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36 *Lots* of changes to increase processing speed and remove pipeline stalls.

Removed the useless flash cache, replacing it with a proper DMA controller.

"make test" in the main directory now runs a test program in Verilator and
reports on the results.
dgisselq 2429d 20h /zipcpu/trunk/rtl/core/memops.v
3 Rebuilt the pipefetch (instruction fetch/cache module) so that it will
let go of the bus if the memory unit wants it to execute an instruction.
Pipefetch will then grab the bus back whtn the memory unit is done, so things
otherwise continue as they were before.

Other tweaks were made to try to reduce code complexity.
dgisselq 2484d 18h /zipcpu/trunk/rtl/core/memops.v
2 An initial load. No promises of what works or not, but this is where the
project is at.
dgisselq 2485d 11h /zipcpu/trunk/rtl/core/memops.v

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