+##### To panic, we print panicmsg (with help from the BIOS) and spin.
+panic: .code16 # We only panic in real mode.
+ movw $panicmsg, %si
+ movb $0xe, %ah
+ xorb %bh, %bh
+1: lodsb
+ test %al, %al
+2: jz 2b # Spin.
+ int $0x10
+ jmp 1b
+
+panicmsg:
+ .ascii "Loader panic!\r\n"
+ .byte 0
+
+##### Command-line arguments inserted by another utility.
+##### The loader doesn't use these, but we note their
+##### location here for easy reference.
+ .org 0x200 - 0x80
+cmd_line: