14 lines
264 B
ArmAsm
14 lines
264 B
ArmAsm
/* inb() - Input one byte Author: Kees J. Bot */
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/* 18 Mar 1996 */
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/* unsigned inb(U16_t port); */
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#include <machine/asm.h>
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ENTRY(inb)
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push %ebp
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movl %esp, %ebp
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movl 8(%ebp), %edx /* port */
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xorl %eax, %eax
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inb %dx /* read 1 byte */
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pop %ebp
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ret
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