example: Hazard3 CPU

The Hazard3 RISC-V CPU comes with SVA assertions.  This script downloads the
RTL, and runs ebmc to check them.

examples/Hazard3/Hazard3.sh

@@ -0,0 +1,95 @@
+#!/bin/sh
+
+# abort on error
+set -e
+
+# clone Hazard3 repo if not done yet
+if [ ! -e Hazard3/.git ] ; then
+  git clone https://github.com/Wren6991/Hazard3
+  (cd Hazard3 ; git checkout v1.0)
+fi
+
+cd Hazard3
+
+ebmc -I hdl \
+  -D HAZARD3_ASSERTIONS --bound 0 --top hazard3_alu \
+  hdl/arith/hazard3_alu.v \
+  hdl/arith/hazard3_priority_encode.v \
+  hdl/arith/hazard3_onehot_encode.v \
+  hdl/arith/hazard3_onehot_priority.v \
+  hdl/arith/hazard3_shift_barrel.v
+
+# expected elaboration-time constant, but got `hazard3_muldiv_seq.properties.i'
+# $past, for loop
+# ebmc -I hdl -D HAZARD3_ASSERTIONS --systemverilog --bound 0 hdl/arith/hazard3_muldiv_seq.v
+
+ebmc -I hdl \
+  -D HAZARD3_ASSERTIONS --bound 0 \
+  hdl/arith/hazard3_shift_barrel.v
+
+# conflicting assignment types
+if false ; then
+ebmc -I hdl -I test/formal/riscv-formal/tb -I test/formal/instruction_fetch_match \
+  -D HAZARD3_ASSERTIONS --systemverilog --bound 0 --top hazard3_core \
+  hdl/hazard3_core.v \
+  hdl/arith/hazard3_alu.v \
+  hdl/arith/hazard3_priority_encode.v \
+  hdl/arith/hazard3_onehot_priority.v \
+  hdl/arith/hazard3_onehot_priority_dynamic.v \
+  hdl/arith/hazard3_onehot_encode.v \
+  hdl/arith/hazard3_shift_barrel.v \
+  hdl/arith/hazard3_branchcmp.v \
+  hdl/hazard3_csr.v \
+  hdl/hazard3_irq_ctrl.v \
+  hdl/hazard3_decode.v \
+  hdl/hazard3_instr_decompress.v \
+  hdl/hazard3_frontend.v
+fi
+
+# conflicting assignment types
+if false ; then
+ebmc -I hdl -I test/formal/riscv-formal/tb -I test/formal/instruction_fetch_match \
+  -D HAZARD3_ASSERTIONS --systemverilog --bound 0 \
+  hdl/hazard3_cpu_2port.v \
+  hdl/hazard3_core.v \
+  hdl/arith/hazard3_alu.v \
+  hdl/arith/hazard3_branchcmp.v \
+  hdl/arith/hazard3_priority_encode.v \
+  hdl/arith/hazard3_onehot_encode.v \
+  hdl/arith/hazard3_onehot_priority.v \
+  hdl/arith/hazard3_onehot_priority_dynamic.v \
+  hdl/arith/hazard3_shift_barrel.v \
+  hdl/hazard3_csr.v \
+  hdl/hazard3_irq_ctrl.v \
+  hdl/hazard3_decode.v \
+  hdl/hazard3_instr_decompress.v \
+  hdl/hazard3_frontend.v
+fi
+
+# four properties fail
+if false ; then
+ebmc -I hdl -D HAZARD3_ASSERTIONS --systemverilog --bound 0 --top hazard3_csr \
+  hdl/hazard3_csr.v \
+  hdl/hazard3_irq_ctrl.v \
+  hdl/arith/hazard3_onehot_encode.v \
+  hdl/arith/hazard3_onehot_priority.v \
+  hdl/arith/hazard3_onehot_priority_dynamic.v
+fi
+
+ebmc -I hdl \
+  -D HAZARD3_ASSERTIONS --bound 0 --top hazard3_decode \
+  hdl/hazard3_decode.v \
+  hdl/hazard3_instr_decompress.v
+
+# conflicting assignment types
+# ebmc -I hdl -D HAZARD3_ASSERTIONS --systemverilog --bound 0 hdl/hazard3_frontend.v
+
+# property disabled by config
+# ebmc -I hdl -D HAZARD3_ASSERTIONS --bound 0 hdl/hazard3_instr_decompress.v
+
+# property fails
+if false ; then
+ebmc -I hdl \
+  -D HAZARD3_ASSERTIONS --bound 0 \
+  hdl/hazard3_power_ctrl.v
+fi