IntelFrameworkPkg/DxeIoLibCpuIo: Add new Fifo routines in IoLib class

[mirror_edk2.git] / OvmfPkg / Library / QemuFwCfgLib / Ia32 / IoLibExAsm.nasm

;------------------------------------------------------------------------------\r
;\r
; Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r
; This program and the accompanying materials\r
; are licensed and made available under the terms and conditions of the BSD License\r
; which accompanies this distribution.  The full text of the license may be found at\r
; http://opensource.org/licenses/bsd-license.php.\r
;\r
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
;\r
;------------------------------------------------------------------------------\r
\r
    SECTION .text\r
\r
;------------------------------------------------------------------------------\r
;  VOID\r
;  EFIAPI\r
;  IoReadFifo8 (\r
;    IN UINTN                  Port,\r
;    IN UINTN                  Size,\r
;    IN VOID                   *Buffer\r
;    );\r
;------------------------------------------------------------------------------\r
global ASM_PFX(IoReadFifo8)\r
ASM_PFX(IoReadFifo8):\r
\r
    mov     dx, [esp + 4]\r
    mov     ecx, [esp + 8]\r
    push    edi\r
    mov     edi, [esp + 16]\r
rep insb\r
    pop     edi\r
    ret\r
\r
;------------------------------------------------------------------------------\r
;  VOID\r
;  EFIAPI\r
;  IoWriteFifo8 (\r
;    IN UINTN                  Port,\r
;    IN UINTN                  Size,\r
;    IN VOID                   *Buffer\r
;    );\r
;------------------------------------------------------------------------------\r
global ASM_PFX(IoWriteFifo8)\r
ASM_PFX(IoWriteFifo8):\r
\r
    mov     dx, [esp + 4]\r
    mov     ecx, [esp + 8]\r
    push    esi\r
    mov     esi, [esp + 16]\r
rep outsb\r
    pop     esi\r
    ret\r
\r