From fe385da850d7bcff8f6a416fe44cd21a7ac82a45 Mon Sep 17 00:00:00 2001 From: Charles Papon Date: Mon, 16 Sep 2019 14:22:33 +0200 Subject: [PATCH] Fix Artix7 FMax, my apologies for that, was due to a bad scripting using Kintex 7 instead --- README.md | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/README.md b/README.md index e595cbe..2af47aa 100644 --- a/README.md +++ b/README.md @@ -66,51 +66,51 @@ The CPU configurations used below can be found in the `src/scala/vexriscv/demo` ``` VexRiscv smallest (RV32I, 0.52 DMIPS/Mhz, no datapath bypass, no interrupt) -> - Artix 7 -> 324 Mhz 496 LUT 505 FF + Artix 7 -> 233 Mhz 494 LUT 505 FF Cyclone V -> 193 Mhz 347 ALMs Cyclone IV -> 179 Mhz 730 LUT 494 FF iCE40 -> 92 Mhz 1130 LC VexRiscv smallest (RV32I, 0.52 DMIPS/Mhz, no datapath bypass) -> - Artix 7 -> 328 Mhz 539 LUT 562 FF + Artix 7 -> 232 Mhz 538 LUT 562 FF Cyclone V -> 189 Mhz 387 ALMs Cyclone IV -> 175 Mhz 829 LUT 550 FF iCE40 -> 85 Mhz 1292 LC VexRiscv small and productive (RV32I, 0.82 DMIPS/Mhz) -> - Artix 7 -> 324 Mhz 701 LUT 531 FF + Artix 7 -> 226 Mhz 689 LUT 531 FF Cyclone V -> 145 Mhz 499 ALMs Cyclone IV -> 150 Mhz 1,111 LUT 525 FF iCE40 -> 63 Mhz 1596 LC VexRiscv small and productive with I$ (RV32I, 0.70 DMIPS/Mhz, 4KB-I$) -> - Artix 7 -> 336 Mhz 764 LUT 562 FF + Artix 7 -> 230 Mhz 734 LUT 564 FF Cyclone V -> 145 Mhz 511 ALMs Cyclone IV -> 144 Mhz 1,145 LUT 531 FF iCE40 -> 66 Mhz 1680 LC VexRiscv full no cache (RV32IM, 1.21 DMIPS/Mhz 2.30 Coremark/Mhz, single cycle barrel shifter, debug module, catch exceptions, static branch) -> - Artix 7 -> 326 Mhz 1544 LUT 977 FF + Artix 7 -> 219 Mhz 1537 LUT 977 FF Cyclone V -> 139 Mhz 958 ALMs - Cyclone IV -> 135 Mhz 2,011 LUT 968 FF + Cyclone IV -> 135 Mhz 2,011 LUT 968 FF VexRiscv full (RV32IM, 1.21 DMIPS/Mhz 2.30 Coremark/Mhz with cache trashing, 4KB-I$,4KB-D$, single cycle barrel shifter, debug module, catch exceptions, static branch) -> - Artix 7 -> 279 Mhz 1686 LUT 1172 FF + Artix 7 -> 193 Mhz 1706 LUT 1172 FF Cyclone V -> 144 Mhz 1,128 ALMs Cyclone IV -> 133 Mhz 2,298 LUT 1,096 FF VexRiscv full max dmips/mhz -> (RV32IM, 1.44 DMIPS/Mhz 2.70 Coremark/Mhz,, 16KB-I$,16KB-D$, single cycle barrel shifter, debug module, catch exceptions, dynamic branch prediction in the fetch stage, branch and shift operations done in the Execute stage) -> - Artix 7 -> 193 Mhz 1758 LUT 1094 FF + Artix 7 -> 140 Mhz 1767 LUT 1128 FF Cyclone V -> 90 Mhz 1,089 ALMs Cyclone IV -> 79 Mhz 2,336 LUT 1,048 FF VexRiscv full with MMU (RV32IM, 1.24 DMIPS/Mhz 2.35 Coremark/Mhz, with cache trashing, 4KB-I$, 4KB-D$, single cycle barrel shifter, debug module, catch exceptions, dynamic branch, MMU) -> - Artix 7 -> 239 Mhz 2029 LUT 1585 FF + Artix 7 -> 161 Mhz 1985 LUT 1585 FF Cyclone V -> 124 Mhz 1,319 ALMs Cyclone IV -> 122 Mhz 2,710 LUT 1,501 FF VexRiscv linux balanced (RV32IMA, 1.21 DMIPS/Mhz 2.27 Coremark/Mhz, with cache trashing, 4KB-I$, 4KB-D$, single cycle barrel shifter, catch exceptions, static branch, MMU, Supervisor, Compatible with mainstream linux) -> - Artix 7 -> 249 Mhz 2549 LUT 2014 FF + Artix 7 -> 170 Mhz 2530 LUT 2013 FF Cyclone V -> 125 Mhz 1,618 ALMs Cyclone IV -> 116 Mhz 3,314 LUT 2,016 FF @@ -296,7 +296,7 @@ You can find some FPGA projects which instantiate the Briey SoC here (DE1-SoC, D Here are some measurements of Briey SoC timings and area : ``` - Artix 7 -> 275 Mhz 3072 LUT 3291 FF + Artix 7 -> 186 Mhz 3138 LUT 3328 FF Cyclone V -> 139 Mhz 2,175 ALMs Cyclone IV -> 129 Mhz 4,337 LUT 3,170 FF ``` @@ -351,13 +351,13 @@ Here are some timing and area measurements of the Murax SoC: ``` Murax interlocked stages (0.45 DMIPS/Mhz, 8 bits GPIO) -> - Artix 7 -> 313 Mhz 1039 LUT 1200 FF + Artix 7 -> 215 Mhz 1044 LUT 1202 FF Cyclone V -> 173 Mhz 737 ALMs Cyclone IV -> 144 Mhz 1,484 LUT 1,206 FF iCE40 -> 64 Mhz 2422 LC (nextpnr) MuraxFast bypassed stages (0.65 DMIPS/Mhz, 8 bits GPIO) -> - Artix 7 -> 323 Mhz 1241 LUT 1301 FF + Artix 7 -> 229 Mhz 1269 LUT 1302 FF Cyclone V -> 159 Mhz 864 ALMs Cyclone IV -> 137 Mhz 1,688 LUT 1,241 FF iCE40 -> 66 Mhz 2799 LC (nextpnr)