.

lib/code.c

@@ -1,11 +1,20 @@
 #include "priv.h"
 
 #include <stdlib.h>
+#include <stdio.h>
+
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#  error Sorry, big endian architectures are not supported at this time.
+#endif
+
+#define MAGIC 0xa7d6e9b1
 
 struct Code {
+    uint8_t* bytecode;
+    size_t   bytecode_sz;
 };
 
-Code* code_new(uint8_t* bytecode, size_t bytecode_sz)
+Code* code_new()
 {
     Code* code = xcalloc(1, sizeof(Code));
     return code;
@@ -16,6 +25,23 @@ void code_destroy(Code* code)
     free(code);
 }
 
+TYC_RESULT code_load_bytecode(Code* code, uint8_t* bytecode, size_t bytecode_sz)
+{
+    // TODO - linking
+
+    if (bytecode_sz < 24)
+        return T_ERR_BYTECODE_TOO_SMALL;
+
+    uint32_t magic = *(uint32_t*) &bytecode[0];
+    if (magic != MAGIC)
+        return T_ERR_BYTECODE_INVALID_MAGIC;
+
+    code->bytecode = bytecode;
+    code->bytecode_sz = bytecode_sz;
+
+    return T_OK;
+}
+
 size_t code_n_consts(Code const* code)
 {
     return 0;  // TODO