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533f346f9b
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Build system: Added the ability to simulate an FPGA SoC and fixed all the warning verilator gave of the code previously used only for synthesis.
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2023-12-07 16:39:04 +00:00 |
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8c921380bc
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Peripherals/BuiltinRam: Fixed high impedance warning in yosys
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2023-12-04 17:04:22 +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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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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2c8e8a9d9c
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Added simple support for \n and \r on the HD44780 driver, increased the synthesised mem to fit brainfuck_compiled.asm and made it the default.
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2023-11-12 21:39:27 +00:00 |
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7d2cb5672f
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Reduced numbers to be sorted in gnome_sort.asm to fit in lcd, fixed hlt on real hardware, slowed down cpu, increased lcd fifo and with that I almost got gnome_sort.asm working perfectly on real hardware
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2023-11-12 07:31:05 +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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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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e4ef199b83
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Fixed a memory corruption bug
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2023-05-10 08:35:14 +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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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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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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f60084344e
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Overhauled cpu frontend. Made memory byte addressable (necessary), cleaned up state machine and fixed small bug with MOV
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2023-03-03 06:29:06 +00:00 |
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6e8d951360
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Increased the accessible memory and got the Mandelbrot renderer working under the brainfuck compiler!
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2023-02-24 17:38:23 +00:00 |
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fd4a9b5442
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Fixed register addressing bug, mem read endianness, cleaned up code and added a provisional project logo
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2023-02-19 00:20:53 +00:00 |
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ded47555a5
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Improved build system and project directory structure
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2023-02-16 01:52:02 +00:00 |
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