Basic working version generates sounds and graphics

boot.S

@@ -0,0 +1,21 @@
+.cpu arm1176jzf-s
+.section ".text.boot"
+
+.global _start
+
+_start:
+    // 1. Set up the stack pointer
+    // The Pi 1 has 512MB RAM (usually), stack grows down from a safe high address.
+    // We'll set it to 0x8000 (where the kernel starts) and let it grow down.
+    mov sp, #0x8000
+
+    // 2. Clear BSS (Uninitialized variables) - Skipped for minimal "Stupid" version
+    // but good practice usually.
+
+    // 3. Jump to C code
+    bl kernel_main
+
+    // 4. Halt if main returns
+halt:
+    wfe
+    b halt