Implement first basic interrupt handler

tools/generate_sd_card.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+set -e
+
+# Config
+IMAGE_NAME="sd.img"
+IMAGE_SIZE_MB=64
+FIRMWARE_DIR="./firmware_files"
+
+
+# Clean up existing image
+if [ -f "$IMAGE_NAME" ]; then
+    echo "[*] Removing existing $IMAGE_NAME..."
+    rm -f "$IMAGE_NAME"
+fi
+
+# Create empty image
+echo "[*] Creating ${IMAGE_SIZE_MB}MB SD image..."
+dd if=/dev/zero of="$IMAGE_NAME" bs=1M count=$IMAGE_SIZE_MB
+
+# Format image as FAT32
+echo "[*] Formatting image as FAT32..."
+mformat -i sd.img -F ::
+
+# Copy all files from firmware_files/ into root of SD image
+echo "[*] Copying files from '$FIRMWARE_DIR' to image..."
+mcopy -i "$IMAGE_NAME" -s "$FIRMWARE_DIR"/* ::/
+
+echo "[✓] SD card image '$IMAGE_NAME' is ready."