Add RLE

runner/src/main.rs

@@ -164,12 +164,29 @@ unsafe fn write_imports(
     prelude.write(&[0xc9, 0xc3]);
 }
 
-unsafe fn write_starting_state(binary: *mut u8, reader: &mut Reader) {
+unsafe fn write_starting_state(mut out: *mut u8, reader: &mut Reader) {
     let length = reader.read::<u32>() as usize;
-    let ptr = reader.ptr;
-    println!("length: {:?}", length);
 
-    binary.copy_from(ptr, length);
+    let end = out.byte_add(length);
+    while out < end {
+        let code = reader.read::<u8>();
+        if code > 0 {
+            // RLE: repeat
+            let byte = reader.read::<u8>();
+            for i in 0..code {
+                *out = byte;
+                out = out.byte_add(1);
+            }
+        } else {
+            // N literal bytes
+            let count = reader.read::<u8>();
+            for _ in 0..count {
+                let byte = reader.read::<u8>();
+                *out = byte;
+                out = out.byte_add(1);
+            }
+        }
+    }
 }
 
 unsafe fn _main_remote() {