 bart
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8b4880efa4
Progress on read function for BRFS.
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8 meses atrás |
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bart
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7fa4131bf9
Added open function to BRFS, new stdlib functions for basename dirname and strrchr
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8 meses atrás |
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bart
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3a5ff93ec6
BRFS now does not keep track of directory anymore. Added path traversal and more.
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8 meses atrás |
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bart
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693251f982
Added changedir and listdir functionality to BRFS.
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8 meses atrás |
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bart
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6b31f51206
Added file and dir creation to BRFS.
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8 meses atrás |
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bart
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01a00e1603
Update new repo link, add requirements.txt.
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8 meses atrás |
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bart
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d6f7dcb26d
Added initial code for BRFS (custom RAM filesystem).
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8 meses atrás |
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bart
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0fd222280a
Added halfres rendering mode to gpu and mu. Added millis counter to mu. Raycaster now renders at half resolution and many improvements. Now at 40 to 70fps.
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1 ano atrás |
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bart
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7cfd77a292
Added fps counter to raycaster
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1 ano atrás |
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bart
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33d828b6b9
All rendering of textured raycaster now done in assembly for significant speed improvement.
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1 ano atrás |
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bart
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d2b53bb5e8
Added dark side of wall in raycaster. Moved data to data folder. Minor code improvements and prep for assembly screen render function.
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1 ano atrás |
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bart
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4e7cdb1216
Changed pixelplane to 24 bit colors. Updated texture generator and raycaster to 24 bit color.
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1 ano atrás |
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bart
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55b5818582
Textured raycaster is now fast enough for a demo.
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1 ano atrás |
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bart
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9ac6dafd0f
POC texture rendering in raycaster. No code optimization yet so it is very slow.
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1 ano atrás |
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bart
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f746bbd20d
Added movement to raycaster. Speed improvements to raycaster and script to precalculate direction and plane values for rotation, for each degree.
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1 ano atrás |
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bart
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0eba720aeb
Initial working POC of a simple raycaster engine.
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1 ano atrás |
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bart
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69d109e653
Added hardware signed and unsigned integer division and modulo. Created simple integer calculator to test. Updated several programs and BDOS to use new division hardware while keeping software calculation as legacy functions.
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1 ano atrás |
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bart
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f3f3a43044
Added fixed-point signed divider to MU. Integrated into FPCALC.
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1 ano atrás |
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bart
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ddd3d60235
Added Fixed-Point BCC library, including a FPCALC application to test it. MULTFP instruction is added to assembler, and some library functions were added during development.
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1 ano atrás |
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bart
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3af9eecaa9
Added signed fixed point multiplication to ALU.
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1 ano atrás |
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bart
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9294ee0605
Removed unused PLLs from quartus design. Replaced main PLL with Cyclone V PLL.
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1 ano atrás |
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bart
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f78729ea77
Fixed L2 cache state machine issue which was only present in the previous commit.
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1 ano atrás |
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bart
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82a433530c
Reverted L2 cache size to 1024 words for easier debugging.
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1 ano atrás |
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bart
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da2bff2ea2
Removed/disabled NTSC from design, as the tiny HDMI monitor is practically always used. Also greatly increased L2 cache size, although no performance benefits for the relatively small programs I currently use for benchmarking.
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1 ano atrás |
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bart
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2287e54c6b
Integrated valid bits into cache block ram. Reset now iteratively clears the entire cache. Allows for much lower FPGA usage and better timings. Should be able to greatly increase cache size as there is an abundance of BRAM.
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1 ano atrás |
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bart
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2fe0518bb3
Improved interrupt timing/alignment, fixing bug where interrupts are not allowed during the UART bootloader.
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1 ano atrás |
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bart
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52f2819774
Removed leftover ccache instructions from debugging instability problems. Commented out required ccache instructions for when L1I cache returns in the future.
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1 ano atrás |
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bart
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9a285550c0
Updated documentation a bit, added newlines to BENCH, removed wrong comments from L2cache.v
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1 ano atrás |
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bart
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88681ec5d0
New arbiter that further improves performance by removing latency for instruction memory access. Created instability again, which I found to be caused by bad interrupt timings. Fixed by changing the interruptValid wire to use branch_MEM for alignment. I do not know why this fixed all problems as it is very hard to simulate this issue. L1 cache should be possible again!
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1 ano atrás |
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bart
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add43b75da
L2 cache at 100MHz now greatly increases performance. Attempted to create l1i and l1d cache, but becomes unstable and the issue is difficult to similate/replicate. Therefore, all l1 cache is now bypassed and the code can be found in l1cacheUnstable.v. As no l1 cache anymore, I removed some ccache statements to increase performance as this instruction currently does nothing.
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1 ano atrás |
