#define F info->stream
/* Sign-extend a 16-bit number in an int. */
-#define SIGN_BITS (8 * sizeof (int) - 16)
-#define sign_extend(x) (((x) << SIGN_BITS) >> SIGN_BITS)
+#define sign_extend(x) ((((x) & 0xffff) ^ 0x8000) - 0x8000)
static int
read_word (bfd_vma memaddr, int *word, disassemble_info *info)