提交歷史

作者 SHA1 備註 提交日期
  bart 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. 1 年之前
  bart 4e7cdb1216 Changed pixelplane to 24 bit colors. Updated texture generator and raycaster to 24 bit color. 1 年之前
  bart 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. 1 年之前
  bart f3f3a43044 Added fixed-point signed divider to MU. Integrated into FPCALC. 1 年之前
  bart 3af9eecaa9 Added signed fixed point multiplication to ALU. 1 年之前
  bart f78729ea77 Fixed L2 cache state machine issue which was only present in the previous commit. 1 年之前
  bart 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. 1 年之前
  bart 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. 1 年之前
  bart 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. 1 年之前
  bart 9a6bf3cd52 Improved reset for cache. Disabled l2 cache as it currently reduces performance. Added more CCache instructions to code, although likely not needed. Still instability issues when L1I cache is enabled. 1 年之前
  bart b6831c4209 Added L2 cache (no L1 for now) between CPU and SDRAM controller. No noticable performance difference, can likely be optimized further to reduce cache hit latency. 1 年之前
  bart 28bcde6466 New SDRAM controller that uses both SDRAM chips. Now separate bus from MU for better performance, as controller runs at 100MHz. Also updated some debug code as debugging was needed. Tested working in hardware. 2x performance boost in some cases. 1 年之前
  bart 240770cb51 Progress on asm for bcc with new architecture. Started on SDRAM testbench for new controller. 1 年之前
  bart 1a2f5e6c55 Added qws Quartus file. 1 年之前