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[/] [tinycpu/] [trunk/] - Rev 17

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17 Added fetch component for fetching from memory to instruction register
Added additional testing for carryover to make sure it's correct
earlz 4419d 03h /tinycpu/trunk/
16 Renamed incdec to carryover (see design for why).
carryover should be done, though may change the "straight through on disable" behavior to instead leaving it floating depending on how things go later with coding.
earlz 4422d 06h /tinycpu/trunk/
15 Added README, LICENSE, and the (so far not created) incdec component earlz 4424d 03h /tinycpu/trunk/
14 Added ALU with all the operations we'll need. Synthesizes as well trivially earlz 4424d 11h /tinycpu/trunk/
13 Forgot about the new library I added earlz 4424d 14h /tinycpu/trunk/
12 registerfile has ports for every register now
makefile now uses GHW file format for gtkwave instead of VCD
earlz 4424d 15h /tinycpu/trunk/
11 Finally, it synthesizes to BRAM.. Possibly need to fix how the DataOut syncs with WriteEnable and Address though if I plan to both read and write on the same clock edge earlz 4428d 04h /tinycpu/trunk/
10 Just committing so I can keep this original that passes simulation, but still synthesizes to LUTs earlz 4428d 04h /tinycpu/trunk/
9 Trying to add a byte-enable to the RAM. Used Xilinx's template for it, but ghdl won't pass the testbench earlz 4428d 12h /tinycpu/trunk/
8 Added blockram for inferring actual block RAM.
Now we need a memory controller, not a crappy memory emulation thing
earlz 4429d 11h /tinycpu/trunk/
7 Changed memory to fix bound check error
Decreased size of RAM since 4096 bytes of RAM would require an FPGA with more than 32K flip-flops (mine has ~4000)
earlz 4429d 13h /tinycpu/trunk/
6 Reworked memory code to hopefully synthesize better earlz 4429d 17h /tinycpu/trunk/
5 Modified registerfile to be dual-port for both read and write earlz 4430d 04h /tinycpu/trunk/
4 Added internal memory interface
Updated design
earlz 4430d 12h /tinycpu/trunk/
3 Updated registerfile to have 2 read ports
Added super rough design document mainly just for brainstorming
earlz 4431d 04h /tinycpu/trunk/
2 Initial commit earlz 4431d 05h /tinycpu/trunk/
1 The project and the structure was created root 4431d 08h /tinycpu/trunk/

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