mirror of https://github.com/acidanthera/audk.git
121 lines
3.9 KiB
NASM
121 lines
3.9 KiB
NASM
;------------------------------------------------------------------------------
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;
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; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
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; Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
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;
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; SPDX-License-Identifier: BSD-2-Clause-Patent
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;
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;------------------------------------------------------------------------------
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DEFAULT REL
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SECTION .text
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;------------------------------------------------------------------------------
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; VOID
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; EFIAPI
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; IoReadFifo8 (
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; IN UINTN Port, // rcx
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; IN UINTN Size, // rdx
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; OUT VOID *Buffer // r8
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(IoReadFifo8)
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ASM_PFX(IoReadFifo8):
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cld
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xchg rcx, rdx
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xchg rdi, r8 ; rdi: buffer address; r8: save rdi
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rep insb
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mov rdi, r8 ; restore rdi
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ret
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;------------------------------------------------------------------------------
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; VOID
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; EFIAPI
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; IoReadFifo16 (
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; IN UINTN Port, // rcx
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; IN UINTN Size, // rdx
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; OUT VOID *Buffer // r8
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(IoReadFifo16)
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ASM_PFX(IoReadFifo16):
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cld
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xchg rcx, rdx
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xchg rdi, r8 ; rdi: buffer address; r8: save rdi
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rep insw
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mov rdi, r8 ; restore rdi
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ret
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;------------------------------------------------------------------------------
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; VOID
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; EFIAPI
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; IoReadFifo32 (
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; IN UINTN Port, // rcx
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; IN UINTN Size, // rdx
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; OUT VOID *Buffer // r8
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(IoReadFifo32)
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ASM_PFX(IoReadFifo32):
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cld
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xchg rcx, rdx
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xchg rdi, r8 ; rdi: buffer address; r8: save rdi
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rep insd
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mov rdi, r8 ; restore rdi
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ret
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;------------------------------------------------------------------------------
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; VOID
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; EFIAPI
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; IoWriteFifo8 (
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; IN UINTN Port, // rcx
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; IN UINTN Size, // rdx
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; IN VOID *Buffer // r8
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(IoWriteFifo8)
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ASM_PFX(IoWriteFifo8):
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cld
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xchg rcx, rdx
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xchg rsi, r8 ; rsi: buffer address; r8: save rsi
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rep outsb
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mov rsi, r8 ; restore rsi
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ret
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;------------------------------------------------------------------------------
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; VOID
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; EFIAPI
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; IoWriteFifo16 (
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; IN UINTN Port, // rcx
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; IN UINTN Size, // rdx
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; IN VOID *Buffer // r8
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(IoWriteFifo16)
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ASM_PFX(IoWriteFifo16):
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cld
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xchg rcx, rdx
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xchg rsi, r8 ; rsi: buffer address; r8: save rsi
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rep outsw
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mov rsi, r8 ; restore rsi
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ret
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;------------------------------------------------------------------------------
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; VOID
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; EFIAPI
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; IoWriteFifo32 (
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; IN UINTN Port, // rcx
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; IN UINTN Size, // rdx
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; IN VOID *Buffer // r8
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; );
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;------------------------------------------------------------------------------
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global ASM_PFX(IoWriteFifo32)
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ASM_PFX(IoWriteFifo32):
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cld
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xchg rcx, rdx
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xchg rsi, r8 ; rsi: buffer address; r8: save rsi
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rep outsd
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mov rsi, r8 ; restore rsi
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ret
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