rv32i: respect conf.debug_instruction setting

.github/workflows/jupyterlite.yml

@@ -1,100 +0,0 @@
-name: Deploy JupiterLite Page
-
-on:
-  # Trigger the workflow on push or pull request,
-  # but only for the master branch
-  push:
-    branches:
-      - master
-  pull_request:
-    branches:
-      - master
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout RiscEmu
-        uses: actions/checkout@v3
-        with:
-          path: riscemu
-
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: '3.10'
-
-      - name: Install dependencies
-        run: |
-          python -m pip install jupyterlite[all] libarchive-c build pyodide-build
-          
-      - name: Build RiscEmu source distribution
-        run: |
-          cd riscemu
-          python setup.py sdist
-
-      # Pyodide is cached, so cloned only if not present in the cache, otherwise
-      # just checked out to whatever desired version and partially rebuilt.
-
-      - name: Restore cached Pyodide tree
-        id: cache-pyodide
-        uses: actions/cache@v3
-        with:
-          path: pyodide
-          key: pyodide
-          
-      - name: Clone pyodide if not cached
-        if: steps.cache-pyodide.outputs.cache-hit != 'true'
-        run: git clone https://github.com/pyodide/pyodide.git
-
-      # Clean the xDSL and FrozenList package folders, generate their skeletons
-      # and do the necessary updates before building.
-      - name: Build custom Pyodide distribution
-        run: |
-          
-          cd pyodide
-          git fetch --all
-          git checkout 0.22.0a3
-          python -m pip install -r requirements.txt
-          sudo apt update && sudo apt install f2c
-          
-          rm -rf packages/riscemu
-          pyodide skeleton pypi riscemu
-          
-          PYODIDE_PACKAGES="riscemu" make
-
-      - name: Build the JupyterLite site
-        run: |
-          mkdir content
-          cp riscemu/docs/* content -r
-          cp riscemu/examples content -r
-          
-          rm -rf pyodide/pyodide
-          mkdir pyodide/pyodide
-          mv pyodide/dist pyodide/pyodide/pyodide
-          
-          python -m jupyter lite build --contents content --pyodide pyodide/pyodide
-
-      - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
-        with:
-          path: ./_output
-
-  deploy:
-    needs: build
-    if: github.ref == 'refs/heads/master' && github.event_name == 'push'
-    permissions:
-      pages: write
-      id-token: write
-
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-
-    runs-on: ubuntu-latest
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v1
-
-

README.md

@@ -31,8 +31,6 @@ Hello world
 Program exited with code 0
 ```
 
-If you want to run it from a python script, here is [an online demo](https://AntonLydike.github.io/riscemu/lab/index.html?path=PythonDemo.ipynb).
-
 The [`read` syscall](docs/syscalls.md) defaults to readline behaviour. Reading "true chunks" (ignoring newlines) is currently not supported.  
 
 See the docs on [asembly](docs/assembly.md) for more detail on how to write assembly code for this emulator.

docs/PythonDemo.ipynb

@@ -1,53 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Using RiscEmu from Python\n",
-    "\n",
-    "Here is how you can run some assembly through RiscEmu from Python.\n",
-    "\n",
-    "This example is using [this fibonacci assembly](examples/fibs.asm)."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "from riscemu import RunConfig, UserModeCPU, RV32I, RV32M, AssemblyFileLoader\n",
-    "\n",
-    "cfg = RunConfig(debug_instruction=False, verbosity=50)\n",
-    "cpu = UserModeCPU((RV32I, RV32M), cfg)\n",
-    "\n",
-    "loader = AssemblyFileLoader.instantiate('examples/fibs.asm', [])\n",
-    "cpu.load_program(loader.parse())\n",
-    "\n",
-    "cpu.launch(cpu.mmu.programs[-1], True)"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.10.7"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 4
-}

examples/fibs.asm

@@ -10,6 +10,7 @@ main:
         addi    s2, zero, 56    ; last storage index
         addi    t0, zero, 1     ; t0 = F_{i}
         addi    t1, zero, 1     ; t1 = F_{i+1}
+        ebreak                  ; launch debugger
 loop:
         sw      t0, fibs(s1)    ; save
         add     t2, t1, t0      ; t2 = F_{i+2}
@@ -18,6 +19,7 @@ loop:
         addi    s1, s1, 4       ; increment storage pointer
         blt     s1, s2, loop    ; loop as long as we did not reach array length
         ; exit gracefully
+        ebreak                  ; launch debugger
         addi    a0, zero, 0
         addi    a7, zero, 93
-        scall                   ; exit with code 0
+        scall                   ; exit with code 0

riscemu/instructions/instruction_set.py

@@ -77,8 +77,8 @@ class InstructionSet(ABC):
         ASSERT_LEN(ins.args, 3)
         if signed:
             return ins.get_reg(0), \
-                   Int32(self.get_reg_content(ins, 1)), \
+                   self.get_reg_content(ins, 1), \
-                   Int32(self.get_reg_content(ins, 2))
+                   self.get_reg_content(ins, 2)
         else:
             return ins.get_reg(0), \
                    UInt32(self.get_reg_content(ins, 1)), \