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[/] [tinycpu/] [trunk/] [src/] [registerfile.vhd] - Rev 39

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28 Ok now registerfile is correct. Only using rising_edge. Now DataOut is the same as DataIn when WriteEnable is asserted.
Some of my tests had to be changed because I was expecting the DataOut to be updated 1 clock cycle after the instruction rather than on the same clock cycle.
Now it's truly single-cycle and without all the weird regIn stuff on the carryovers
earlz 4558d 02h /tinycpu/trunk/src/registerfile.vhd
27 Added a few ALU opcodes and came across a weird propogation delay issue with my registerfile.
As a workaround, I'm trying to use falling_edge instead of rising_edge. We shall see if I regret this later
earlz 4558d 08h /tinycpu/trunk/src/registerfile.vhd
19 Got beginning of core/decoder for the CPU earlz 4561d 01h /tinycpu/trunk/src/registerfile.vhd
12 registerfile has ports for every register now
makefile now uses GHW file format for gtkwave instead of VCD
earlz 4570d 11h /tinycpu/trunk/src/registerfile.vhd
6 Reworked memory code to hopefully synthesize better earlz 4575d 14h /tinycpu/trunk/src/registerfile.vhd
5 Modified registerfile to be dual-port for both read and write earlz 4576d 01h /tinycpu/trunk/src/registerfile.vhd
3 Updated registerfile to have 2 read ports
Added super rough design document mainly just for brainstorming
earlz 4577d 01h /tinycpu/trunk/src/registerfile.vhd
2 Initial commit earlz 4577d 02h /tinycpu/trunk/src/registerfile.vhd

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