blob: f1515e8c849e625ef5bfdec8ea81cfd73b8e97ef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
title CpuIoAccess.asm
;------------------------------------------------------------------------------
;
; Copyright (c) 2006 - 2007, Intel Corporation
; All rights reserved. This program and the accompanying materials
; are licensed and made available under the terms and conditions of the BSD License
; which accompanies this distribution. The full text of the license may be found at
; http://opensource.org/licenses/bsd-license.php
;
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
;
; Module Name:
; CpuIoAccess.asm
;
; Abstract:
; CPU IO Abstraction
;
;------------------------------------------------------------------------------
.code
;------------------------------------------------------------------------------
; UINT8
; CpuIoRead8 (
; UINT16 Port // rcx
; )
;------------------------------------------------------------------------------
CpuIoRead8 PROC PUBLIC
xor eax, eax
mov dx, cx
in al, dx
ret
CpuIoRead8 ENDP
;------------------------------------------------------------------------------
; VOID
; CpuIoWrite8 (
; UINT16 Port, // rcx
; UINT32 Data // rdx
; )
;------------------------------------------------------------------------------
CpuIoWrite8 PROC PUBLIC
mov eax, edx
mov dx, cx
out dx, al
ret
CpuIoWrite8 ENDP
END
|