first commit

print.c

@@ -0,0 +1,45 @@
+long print(const void *buf, long count) {
+    asm volatile (
+        "syscall"
+        :
+        : "a"(1), "D"(1), "S"(buf), "d"(count)  // RDI, RSI, RDX are used in x86-64 for write args
+        : "rcx", "r11", "memory"
+    );
+    return 0;
+}
+
+void exit(int e) {
+  asm volatile(
+    "syscall"
+    :
+    : "a"(60), "D"(e)
+    :
+    );
+  for(;;);
+}
+
+
+int main() {
+//void _start() {
+  char *msg = "Hello World!\n";
+  print(msg, 13);
+  return 69;
+}
+void __libc_start_main() {exit(main());}
+
+/*
+#if defined(__x86_64__)
+        printf("Compiled for x86_64 architecture\n");
+    #elif defined(__i386__)
+        printf("Compiled for x86 architecture\n");
+    #elif defined(__arm__)
+        printf("Compiled for ARM architecture\n");
+    #elif defined(__aarch64__)
+        printf("Compiled for ARM64 architecture\n");
+    #elif defined(__mips__)
+        printf("Compiled for ARM architecture\n");
+    #else
+        printf("Unknown architecture\n");
+    #endif
+*/
+