| Rev |
Log message |
Author |
Age |
Path |
| 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 |
4390d 20h |
/ |
| 26 |
Added extra check to make sure fetcher works properly after memory write |
earlz |
4390d 21h |
/ |
| 25 |
Wait for memory state now works as expected, and opcode `mov [reg], immd` works now |
earlz |
4391d 01h |
/ |
| 24 |
Good news, mov to IP actually works as expected! |
earlz |
4391d 18h |
/ |
| 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 |
4391d 19h |
/ |
| 22 |
Added to process sensitivity list to avoid warning and added ELSE for IR so it doesn't generate a latch |
earlz |
4392d 11h |
/ |
| 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 |
4392d 11h |
/ |
| 20 |
fuck it. All sorts of broken, will try to fix it tomorrow |
earlz |
4393d 11h |
/ |
| 19 |
Got beginning of core/decoder for the CPU |
earlz |
4393d 12h |
/ |
| 18 |
Finished memory controller |
earlz |
4396d 22h |
/ |
| 17 |
Added fetch component for fetching from memory to instruction register
Added additional testing for carryover to make sure it's correct |
earlz |
4397d 11h |
/ |
| 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 |
4400d 14h |
/ |
| 15 |
Added README, LICENSE, and the (so far not created) incdec component |
earlz |
4402d 11h |
/ |
| 14 |
Added ALU with all the operations we'll need. Synthesizes as well trivially |
earlz |
4402d 19h |
/ |
| 13 |
Forgot about the new library I added |
earlz |
4402d 22h |
/ |
| 12 |
registerfile has ports for every register now
makefile now uses GHW file format for gtkwave instead of VCD |
earlz |
4402d 23h |
/ |
| 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 |
4406d 12h |
/ |
| 10 |
Just committing so I can keep this original that passes simulation, but still synthesizes to LUTs |
earlz |
4406d 12h |
/ |
| 9 |
Trying to add a byte-enable to the RAM. Used Xilinx's template for it, but ghdl won't pass the testbench |
earlz |
4406d 20h |
/ |
| 8 |
Added blockram for inferring actual block RAM.
Now we need a memory controller, not a crappy memory emulation thing |
earlz |
4407d 20h |
/ |
