[UPGRADE REPOSITORY]

Add CFU implementation files
For mult_wfifos, multp_wfifos and multp
Through nextpnr

Update implementation.yml to perform the bitstream generation in CI

.github/workflows/Implementation.yml

@@ -208,3 +208,43 @@ jobs:
           name: multp_wfifos_wishbone_100t
           path: ./neorv32_multp_wfifos_wishbone_100t.bit
 
+  impl_mults_cfu_35t:
+    runs-on: ubuntu-latest
+    env:
+      Board: 35t
+
+    steps:
+
+      - name: '🧰 Checkout'
+        uses: actions/checkout@v4
+
+      - uses: docker://ghcr.io/unike267/containers/impl-arty:latest
+        with:
+          args: ./impl/nextpnr/impl_mults_cfu.sh
+
+      - name: '📤 Upload artifact'
+        uses: actions/upload-artifact@v4
+        with:
+          name: mults_cfu_35t
+          path: ./neorv32_mults_cfu_35t.bit
+
+  impl_mults_cfu_100t:
+    runs-on: ubuntu-latest
+    env:
+      Board: 100t
+
+    steps:
+
+      - name: '🧰 Checkout'
+        uses: actions/checkout@v4
+
+      - uses: docker://ghcr.io/unike267/containers/impl-arty:latest
+        with:
+          args: ./impl/nextpnr/impl_mults_cfu.sh
+
+      - name: '📤 Upload artifact'
+        uses: actions/upload-artifact@v4
+        with:
+          name: mults_cfu_100t
+          path: ./neorv32_mults_cfu_100t.bit
+

impl/nextpnr/impl_mults_cfu.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+
+set -ex
+
+cd $(dirname "$0")
+
+if [[ -z "${Board}" ]]; then
+  Arty='35t'
+elif [[ $Board == '35t' ]]; then
+  Arty='35t'
+elif [[ $Board == '100t' ]]; then
+  Arty='100t'
+else
+  echo "Error Board must be 35t or 100t"
+  exit
+fi
+echo "Selected board is" $Arty
+
+apt update -qq
+
+apt install -y git
+
+cd ../..
+
+git clone --recursive https://github.com/stnolting/neorv32-setups
+
+mv rtl/mult/CFU/neorv32_application_image.vhd neorv32-setups/neorv32/rtl/core
+mv rtl/mult/CFU/neorv32_cpu_cp_cfu.vhd neorv32-setups/neorv32/rtl/core
+
+mkdir -p build
+
+echo "Analyze NEORV32 CPU + MULT(P) via CFU"
+
+ghdl -i --std=08 --workdir=build --work=neorv32  ./neorv32-setups/neorv32/rtl/core/*.vhd
+ghdl -i --std=08 --workdir=build --work=neorv32  ./neorv32-setups/neorv32/rtl/core/mem/neorv32_dmem.default.vhd
+ghdl -i --std=08 --workdir=build --work=neorv32  ./neorv32-setups/neorv32/rtl/core/mem/neorv32_imem.default.vhd
+ghdl -i --std=08 --workdir=build --work=neorv32 ./rtl/mult/*.vhd
+ghdl -i --std=08 --workdir=build --work=neorv32 ./rtl/multp/*.vhd
+ghdl -i --std=08 --workdir=build --work=neorv32 ./rtl/mult/CFU/neorv32_mults_cfu.vhd
+ghdl -m --std=08 --workdir=build --work=neorv32 neorv32_mults_cfu
+
+echo "Synthesis with yosys and ghdl as module"
+
+yosys -m ghdl -p 'ghdl --std=08 --workdir=build --work=neorv32 neorv32_mults_cfu; synth_xilinx -nodsp -nolutram -flatten -abc9 -arch xc7 -top neorv32_mults_cfu; write_json neorv32_mults_cfu.json' 
+
+if [[ $Arty == '35t' ]]; then
+  echo "Place and route"
+  nextpnr-xilinx --chipdb /usr/local/share/nextpnr/xilinx-chipdb/xc7a35t.bin --xdc impl/nextpnr/arty.xdc --json neorv32_mults_cfu.json --write neorv32_mults_cfu_routed.json --fasm neorv32_mults_cfu.fasm
+  echo "Generate bitstream"
+  ../../prjxray/utils/fasm2frames.py --part xc7a35tcsg324-1 --db-root /usr/local/share/nextpnr/prjxray-db/artix7 neorv32_mults_cfu.fasm > neorv32_mults_cfu.frames
+  ../../prjxray/build/tools/xc7frames2bit --part_file /usr/local/share/nextpnr/prjxray-db/artix7/xc7a35tcsg324-1/part.yaml --part_name xc7a35tcsg324-1 --frm_file neorv32_mults_cfu.frames --output_file neorv32_mults_cfu_35t.bit
+elif [[ $Arty == '100t' ]]; then
+  echo "Place and route"
+  nextpnr-xilinx --chipdb /usr/local/share/nextpnr/xilinx-chipdb/xc7a100t.bin --xdc impl/nextpnr/arty.xdc --json neorv32_mults_cfu.json --write neorv32_mults_cfu_routed.json --fasm neorv32_mults_cfu.fasm
+  echo "Generate bitstream"
+  ../../prjxray/utils/fasm2frames.py --part xc7a100tcsg324-1 --db-root /usr/local/share/nextpnr/prjxray-db/artix7 neorv32_mults_cfu.fasm > neorv32_mults_cfu.frames
+  ../../prjxray/build/tools/xc7frames2bit --part_file /usr/local/share/nextpnr/prjxray-db/artix7/xc7a100tcsg324-1/part.yaml --part_name xc7a100tcsg324-1 --frm_file neorv32_mults_cfu.frames --output_file neorv32_mults_cfu_100t.bit
+fi
+
+echo "Implementation completed"