Add actions, support older gcc

.forgejo/workflows/build.yml

@@ -0,0 +1,32 @@
+on: [push]
+jobs:
+  deploy:
+    runs-on: docker
+    container: debian:bookworm
+    steps:
+      - name: Prepare for installation
+        run: dpkg --add-architecture amd64 && apt update
+      - name: Install prerequisites
+        run: apt install -y git ca-certificates
+      - name: Install toolchain
+        run: apt install -y gcc gcc-x86-64-linux-gnu:arm64 make:arm64
+      - name: Install program dependencies
+        run: apt install -y libelf-dev:arm64 libelf-dev:amd64
+
+      - name: Clone repository
+        run: git clone https://git.m724.eu/Minecon724/criscv.git .
+      - name: Package for x86_64
+        run: CC=x86_64-linux-gnu-gcc PROGRAM_NAME=criscv-x86_64 make && rm -rf build/obj
+      - name: Package for aarch64
+        run: CC=aarch64-linux-gnu-gcc PROGRAM_NAME=criscv-aarch64 make
+
+      - name: No escape from unnecessary nodejs
+        run: apt install -y --no-install-recommends nodejs
+      - name: Upload x86_64 artifact
+        uses: https://github.com/actions/upload-artifact@v3
+        with:
+          path: build/criscv-x86_64
+      - name: Upload aarch64 artifact
+        uses: https://github.com/actions/upload-artifact@v3
+        with:
+          path: build/criscv-aarch64

Makefile

@@ -1,24 +1,14 @@
 # Compiler to use
-CC := gcc
+CC ?= gcc
 
-# Compiler flags:
+CFLAGS = -Wall -Wextra -std=gnu17 -I include
-# -Wall: Enable all warnings
+LDFLAGS = -lelf
-# -Wextra: Enable extra warnings
-# -std=gnu23: Use GNU C23 standard
-# -I include: Add 'include' directory to the include path
-# -O3: Optimize code (level 3)
-# -Wno-unused-variable: Disable warnings for unused variables
-ifeq ($(DEBUG),1)
-  CFLAGS := -Wall -Wextra -std=gnu23 -I include -O0 -g -lelf
-else
-  CFLAGS := -Wall -Wextra -std=gnu23 -I include -O3 -lelf
-endif
 
 # Directory for build outputs
 BUILD_DIR := build
 
 # Name of the output program
-PROGRAM_NAME := criscv
+PROGRAM_NAME ?= criscv
 
 # Find all .c files in the source directory
 SRCS := $(wildcard src/*.c)
@@ -30,16 +20,20 @@ OBJS := $(patsubst src/%.c,$(BUILD_DIR)/obj/%.o,$(SRCS))
 TARGET := $(BUILD_DIR)/$(PROGRAM_NAME)
 
 
+# Default target: build the executable
+all: CFLAGS += -O3
+all: $(TARGET)
+
+# Debug target
+debug: CFLAGS += -O0 -g
+debug: $(TARGET)
 
 # Declare 'all' and 'clean' as phony targets (not files)
-.PHONY: all clean
+.PHONY: all debug clean
-
-# Default target: build the executable
-all: $(TARGET)
 
 # Rule to link object files into the final executable
 $(TARGET): $(OBJS) | $(BUILD_DIR)
-	$(CC) $(CFLAGS) $^ -o $@
+	$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS)
 	du -b $(TARGET)  # Size of the executable in bytes
 
 # Rule to compile source files into object files

include/cpu.h

@@ -5,8 +5,13 @@
 #include <stdint.h>
 
 struct CPU_s {
+    // [32] of 32bit (uint32_t) registers 
     uint32_t registers[32];
+
+    // Points to the byte of current instruction. Also known as pc
     uint32_t programCounter;
+
+    // The address space
     AddressSpace *addressSpace;
 };
 

src/cpu.c

@@ -1,25 +1,14 @@
 #include <stdint.h>
 #include <stdio.h>
+
 #include "address_space.h"
 #include "instruction_executor.h"
 
-struct CPU_s {
+const CPU cpu_default = {
-    // [32] of 32bit (uint32_t) registers 
-    uint32_t registers[32];
-
-    // Points to the byte of current instruction. Also known as pc
-    uint32_t programCounter;
-
-    // The address space
-    AddressSpace *addressSpace;
-} cpu_default = {
     .registers = {0},
     .programCounter = 0
 };
 
-typedef struct CPU_s CPU;
-
-
 CPU create_cpu(AddressSpace *addressSpace) {
     CPU cpu = cpu_default;
     cpu.addressSpace = addressSpace;