14 lines
223 B
ArmAsm
Executable file
14 lines
223 B
ArmAsm
Executable file
! inb() - Input one byte Author: Kees J. Bot
|
|
! 18 Mar 1996
|
|
! unsigned inb(U16_t port);
|
|
|
|
.sect .text
|
|
.define _inb
|
|
_inb:
|
|
push bp
|
|
mov bp, sp
|
|
mov dx, 4(bp) ! port
|
|
inb dx ! read 1 byte
|
|
xorb ah, ah
|
|
pop bp
|
|
ret
|