fix listdir

README.md

@@ -3,9 +3,9 @@
 A very cool language
 
 ## Huh?
-* Indentation-based syntax
+* Clean indentation-based syntax
 * Compiles to x86_64 Assembly
-* Sometimes works
+* Almost works
 
 ## Syntax
 ```rust

src/codegen_x86_64.rs

@@ -210,7 +210,9 @@ _builtin_listdir:
     call strdup
     mov rsi, rax
     mov rdi, rbx
+    mov [rsp], rbx
     call Array.push
+    mov rbx, [rsp]
     jmp ._builtin_listdir.1
 ._builtin_listdir.3:
     mov rdi, r14

test.zr

@@ -11,7 +11,7 @@ func run_test[x: String] : Void
     printf(" %ldms\n", build_end_time - build_start_time)
 
     if strcmp(x, "guess_number.zr") == 0 || strcmp(x, "tcp_server.zr") == 0
-        printf("\033[93mSkipping %s...\033[0m\n")
+        printf("\033[93mSkipping %s...\033[0m\n", x)
     else
         let run_start_time: I64 = OS.time()
         if system("./out") != 0