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be402aa8f7
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Project: updated copyright notices and README and fixed a few spelling mistakes
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2024-02-10 15:52:13 +00:00 |
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df5b9c13ea
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Project: Removed some unused verilator warning restrictions and a TODO comment
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2023-12-06 02:46:39 +00:00 |
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63ea29e399
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Peripherals/Memory: Added support for the litedram DDR memory controller, created a new memory map and updated all relevant code and files including the addition of rudimentary wait state support for the cpu (BIU)
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2023-12-03 19:24:39 +00:00 |
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f07e0e7c1f
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Processor/Instructions: Added support for the IN <immediate> instruction. Also changed some stuff in system.v to add more devices in the IO/Memory space
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2023-11-25 04:12:05 +00:00 |
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aedefddb5d
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Project: The cpu finally works perfectly now even at full speed as far as i can tell! I made the ram and register writes synchronous which fixed the weird issues I had, then I added -abc9 to yosys so that nextpnr can actually route the cpu at full speed and increased the display fifo since the cpu is so fast now!!
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2023-11-15 18:43:56 +00:00 |
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29bc2e6d96
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Project: Cleaned up some code and run the project through aspell
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2023-11-15 14:37:46 +00:00 |
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4c130a8d63
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Added back removed warnings to verilator since we have now fixed those issues
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2023-11-12 00:07:33 +00:00 |
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01dcbfa7a1
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The CPU works on real hardware for the first time! I added an adjustment for ram size, added control for a led and a test program for it. On the fpga board there is an actual led there that I used to verify functionality
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2023-11-06 08:13:36 +00:00 |
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df2975fa09
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Fixed a lot of "conflicting driver" issues but I had to roll back an optimisation
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2023-11-04 11:04:22 +00:00 |
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c7ddf3fa9e
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More small fixes
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2023-11-04 08:31:05 +00:00 |
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934e2f5a36
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Fixed a bunch of things wrong with fpga_top.v and gated off some more simulation-only code
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2023-11-02 23:46:12 +00:00 |
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08aac5c7b6
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Removed some code that wasn't meant for synthesis and fixed important bug in Makefile
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2023-11-02 22:19:15 +00:00 |
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43f3e16ca4
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Removed all instances of inout since from what i understand it's mostly synthesisable
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2023-11-02 21:48:12 +00:00 |
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5feee9de57
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Added support to the build system for synthesising, place and routing, serialising and uploading the design to a Lattice ECP5 OrangeCrab FPGA
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2023-11-02 00:29:14 +00:00 |
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3ec90b1843
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Added version stamp and last commit to json log
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2023-11-01 06:03:53 +00:00 |
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3a63e916f5
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Added cycles to waveform capture for icarus verilog
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2023-10-31 19:32:35 +00:00 |
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49335a2c2f
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Fixed a small bug in log generation and did some cleanup
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2023-10-31 19:01:34 +00:00 |
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8a62b89a13
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Fixed small bug with json data reporting and improved slightly the graphs
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2023-10-30 08:01:03 +00:00 |
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42c319d55d
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Lots of cleanup mainly on processor.v
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2023-06-01 02:13:55 +01:00 |
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0bf00df07c
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Fixed clock cycle and instruction counter overflow
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2023-05-23 09:27:46 +01:00 |
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e74d73ed58
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Added reporting of branches on the stat json files and improved the plotting script
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2023-05-21 03:00:27 +01:00 |
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07d2a80b2e
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Added code to record statistics and a tool to plot them
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2023-05-14 16:06:33 +01:00 |
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da51dd6da7
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First draft of a bus interface unit in an effort to make the CPU pipelined. Currently supports code prefetching
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2023-05-07 13:34:15 +01:00 |
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f4b22951d0
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Cleaned up some pieces of code and fixed a bug
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2023-05-04 00:49:04 +01:00 |
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aabe62b4c9
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Added missing copyright and license notice
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2023-03-09 06:13:34 +00:00 |
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11624ca2d2
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Added the OUT instruction to be able to properly address I/O and moved printing logic to a device on the I/O space. Also added IRET which is basically just a RET in this case
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2023-03-09 06:03:13 +00:00 |
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9de83fd7c1
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Added partial support for the software interrupt INT instruction
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2023-03-08 07:26:28 +00:00 |
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99cbc49e95
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Wrote a more complete testbench for verilator, switched from lx2 to fst and fixed cpu clock frequency calculation
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2023-03-05 00:10:55 +00:00 |
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5705b8e8a5
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Added support for Verilator!
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2023-03-04 08:37:43 +00:00 |
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