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| author | Clifford Wolf <clifford@clifford.at> | 2016-08-30 11:24:04 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2016-08-30 11:24:04 +0200 |
| commit | 6af226a385f898395389d71c9faadde130a17853 (patch) | |
| tree | 36df1a9f7c4da37400611bbdbbf2989f6afafb73 | |
| parent | dc9b100814a9b4be684457e4ea74ef9940276a4f (diff) | |
| download | picorv32-6af226a385f898395389d71c9faadde130a17853.tar.gz picorv32-6af226a385f898395389d71c9faadde130a17853.zip | |
Using fast mul in dhrystone benchmark
| -rw-r--r-- | README.md | 6 | ||||
| -rw-r--r-- | dhrystone/testbench.v | 1 |
2 files changed, 3 insertions, 4 deletions
@@ -345,11 +345,11 @@ When `BARREL_SHIFTER` is activated, a shift operation takes as long as any other ALU operation. The following dhrystone benchmark results are for a core with enabled -`ENABLE_MUL`, `ENABLE_DIV`, and `BARREL_SHIFTER` options. +`ENABLE_FAST_MUL`, `ENABLE_DIV`, and `BARREL_SHIFTER` options. -Dhrystone benchmark results: 0.505 DMIPS/MHz (888 Dhrystones/Second/MHz) +Dhrystone benchmark results: 0.521 DMIPS/MHz (916 Dhrystones/Second/MHz) -For the Dhrystone benchmark the average CPI is 4.208. +For the Dhrystone benchmark the average CPI is 4.081. PicoRV32 Native Memory Interface diff --git a/dhrystone/testbench.v b/dhrystone/testbench.v index b767a9e..7744b0d 100644 --- a/dhrystone/testbench.v +++ b/dhrystone/testbench.v @@ -28,7 +28,6 @@ module testbench; picorv32 #( .BARREL_SHIFTER(1), - .ENABLE_MUL(1), .ENABLE_FAST_MUL(1), .ENABLE_DIV(1), .PROGADDR_RESET('h10000), |