diff options
| -rw-r--r-- | README.md | 20 | ||||
| -rw-r--r-- | scripts/vivado/synth_area_top.v | 1 |
2 files changed, 11 insertions, 10 deletions
@@ -539,13 +539,13 @@ See `make table.txt` in [scripts/vivado/](scripts/vivado/). |:-------------------- |:----------:| --------------------:| | Xilinx Artix-7T | -1 | 4.8 ns (208 MHz) | | Xilinx Artix-7T | -2 | 3.9 ns (256 MHz) | -| Xilinx Artix-7T | -3 | 3.7 ns (270 MHz) | -| Xilinx Kintex-7T | -1 | 3.4 ns (294 MHz) | -| Xilinx Kintex-7T | -2 | 2.7 ns (370 MHz) | +| Xilinx Artix-7T | -3 | 3.4 ns (294 MHz) | +| Xilinx Kintex-7T | -1 | 3.2 ns (312 MHz) | +| Xilinx Kintex-7T | -2 | 2.5 ns (400 MHz) | | Xilinx Kintex-7T | -3 | 2.6 ns (384 MHz) | | Xilinx Virtex-7T | -1 | 3.0 ns (333 MHz) | -| Xilinx Virtex-7T | -2 | 2.5 ns (400 MHz) | -| Xilinx Virtex-7T | -3 | 2.4 ns (416 MHz) | +| Xilinx Virtex-7T | -2 | 2.7 ns (370 MHz) | +| Xilinx Virtex-7T | -3 | 2.3 ns (434 MHz) | #### Utilization on Xilinx 7-Series FPGAs @@ -553,8 +553,8 @@ The following table lists the resource utilization in area-optimized synthesis for the following three cores: - **PicoRV32 (small):** The `picorv32` module without counter instructions, - with externally latched `mem_rdata`, and without catching of misaligned - memory accesses and illegal instructions. + without two-stage shifts, with externally latched `mem_rdata`, and without + catching of misaligned memory accesses and illegal instructions. - **PicoRV32 (regular):** The `picorv32` module in its default configuration. @@ -565,7 +565,7 @@ See `make area` in [scripts/vivado/](scripts/vivado/). | Core Variant | Slice LUTs | LUTs as Memory | Slice Registers | |:------------------ | ----------:| --------------:| ---------------:| -| PicoRV32 (small) | 828 | 48 | 422 | -| PicoRV32 (regular) | 968 | 48 | 564 | -| PicoRV32 (large) | 1742 | 88 | 1002 | +| PicoRV32 (small) | 775 | 48 | 422 | +| PicoRV32 (regular) | 963 | 48 | 564 | +| PicoRV32 (large) | 1800 | 88 | 1002 | diff --git a/scripts/vivado/synth_area_top.v b/scripts/vivado/synth_area_top.v index 4d2b573..18e6438 100644 --- a/scripts/vivado/synth_area_top.v +++ b/scripts/vivado/synth_area_top.v @@ -14,6 +14,7 @@ module top_small ( picorv32 #( .ENABLE_COUNTERS(0), .LATCHED_MEM_RDATA(1), + .TWO_STAGE_SHIFT(0), .CATCH_MISALIGN(0), .CATCH_ILLINSN(0) ) picorv32 ( |