📄 kbraw.s
字号:
/* Poll keyboard through BIOS. Returns ascii char in low byte, scan code
* in high byte. If low byte == 0, character is "extended ascii"
*/
.global _kbraw
_kbraw:
movb $1,%ah
int $0x16
je L0
movb $0,%ah
int $0x16
andl $0x0000ffff,%eax
ret
L0: xorl %eax,%eax
ret
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