22 lines
374 B
ArmAsm
Executable File
22 lines
374 B
ArmAsm
Executable File
! insb() - Input a byte array Author: Kees J. Bot
|
|
! 18 Mar 1996
|
|
! void insb(U16_t port, void *buf, size_t count);
|
|
|
|
.sect .text
|
|
.define _insb
|
|
_insb:
|
|
push bp
|
|
mov bp, sp
|
|
cld
|
|
push di
|
|
mov dx, 4(bp) ! port
|
|
mov di, 6(bp) ! buf
|
|
mov cx, 8(bp) ! byte count
|
|
jcxz 1f
|
|
0: inb dx ! input 1 byte
|
|
stosb ! write 1 byte
|
|
loop 0b ! many times
|
|
1: pop di
|
|
pop bp
|
|
ret
|