ci: mipsevm Go test workflow

.github/workflows/test.yml

+
+on: [push, pull_request]
+name: Go Test
+jobs:
+  go-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-go@v3
+        with:
+          go-version: 1.20.x
+      - uses: actions/checkout@v3
+      - name: Install libunicorn
+        working-directory: .
+        run: make libunicorn
+      - uses: actions/cache@v3
+        with:
+          # In order:
+          # * Module download cache
+          # * Build cache (Linux)
+          # * Build cache (Mac)
+          # * Build cache (Windows)
+          path: |
+            ~/go/pkg/mod
+            ~/.cache/go-build
+            ~/Library/Caches/go-build
+            ~\AppData\Local\go-build
+          key: ${{ runner.os }}-go-${{ matrix.go-version }}-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-${{ matrix.go-version }}-
+      - name: Build examples
+        working-directory: ./example
+        run: make bin/minimal.elf
+      - name: mipsevm tests
+        working-directory: ./mipsevm
+        run: go test ./...

.gitmodules

+[submodule "unicorn"]
+	path = unicorn
+	url = https://github.com/unicorn-engine/unicorn.git

Makefile

 SHELL := /bin/bash
 
-build: submodules libunicorn minigeth_mips minigeth_prefetch mipsevm contracts
+build: submodules libunicorn mipsevm contracts
 .PHONY: build
 
 submodules:
@@ -38,21 +38,10 @@ libunicorn_rebuild:
 	make libunicorn
 .PHONY: libunicorn_rebuild
 
-minigeth_mips:
-	cd mipigo && ./build.sh
-.PHONY: minigeth_mips
-
-minigeth_prefetch:
-	cd minigeth && go build
-.PHONY: minigeth_prefetch
-
 mipsevm:
 	cd mipsevm && go build
 .PHONY: mipsevm
 
-contracts: nodejs
-	npx hardhat compile
-.PHONY: contracts
 
 nodejs:
 	if [ -x "$$(command -v pnpm)" ]; then \

unicorn @ 7b8c63df

+Subproject commit 7b8c63dfe650b5d4d2bf684526161971925e6350