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[/] [zipcpu/] [trunk/] [rtl/] [core/] [cpuops.v] - Rev 12

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12 Bunch of changes while trying to get a hello world program:
1. Right shifts by 32 or more now result in zero, or all of the top bit in the
case of ASRs.
2. zdump now properly includes addresses with dumped lines.
3. zparser now properly handles immediate values via the .DAT instruction.
dgisselq 3225d 12h /zipcpu/trunk/rtl/core/cpuops.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 3226d 18h /zipcpu/trunk/rtl/core/cpuops.v
2 An initial load. No promises of what works or not, but this is where the
project is at.
dgisselq 3227d 11h /zipcpu/trunk/rtl/core/cpuops.v

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