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[/] [tinycpu/] [trunk/] - Rev 26

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26 Added extra check to make sure fetcher works properly after memory write earlz 4525d 02h /tinycpu/trunk/
25 Wait for memory state now works as expected, and opcode `mov [reg], immd` works now earlz 4525d 07h /tinycpu/trunk/
24 Good news, mov to IP actually works as expected! earlz 4526d 00h /tinycpu/trunk/
23 Added top module for testing how our memory and cpu will work together. (hint: success)
Messing around with a small timing issue in core
earlz 4526d 00h /tinycpu/trunk/
22 Added to process sensitivity list to avoid warning and added ELSE for IR so it doesn't generate a latch earlz 4526d 16h /tinycpu/trunk/
21 The core_tb testbench finally passes. It probably doesn't synthesize, or even pass other testbenches, but it passes that one damn it. earlz 4526d 16h /tinycpu/trunk/
20 fuck it. All sorts of broken, will try to fix it tomorrow earlz 4527d 16h /tinycpu/trunk/
19 Got beginning of core/decoder for the CPU earlz 4527d 18h /tinycpu/trunk/
18 Finished memory controller earlz 4531d 03h /tinycpu/trunk/
17 Added fetch component for fetching from memory to instruction register
Added additional testing for carryover to make sure it's correct
earlz 4531d 17h /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 4534d 19h /tinycpu/trunk/
15 Added README, LICENSE, and the (so far not created) incdec component earlz 4536d 17h /tinycpu/trunk/
14 Added ALU with all the operations we'll need. Synthesizes as well trivially earlz 4537d 01h /tinycpu/trunk/
13 Forgot about the new library I added earlz 4537d 04h /tinycpu/trunk/
12 registerfile has ports for every register now
makefile now uses GHW file format for gtkwave instead of VCD
earlz 4537d 04h /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 4540d 18h /tinycpu/trunk/
10 Just committing so I can keep this original that passes simulation, but still synthesizes to LUTs earlz 4540d 18h /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 4541d 02h /tinycpu/trunk/
8 Added blockram for inferring actual block RAM.
Now we need a memory controller, not a crappy memory emulation thing
earlz 4542d 01h /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 4542d 03h /tinycpu/trunk/

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