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protected mode works, return to real-mode triple faults
[com32] / src / startup.asm
1         bits 32
2         section .text
3
4         global startup
5 startup:
6         mov ebx, 0xb8000
7         mov byte [ebx], '@'
8 .waitkey:
9         in al, 64h
10         test al, 1
11         jz .waitkey
12         in al, 60h
13         ret
14
15 ; vi:set ts=8 sts=8 sw=8 ft=nasm:
simple DOS protected mode experiment