diff options
Diffstat (limited to '')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/X64/Mwait.nasm | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/X64/Mwait.nasm b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/X64/Mwait.nasm new file mode 100644 index 00000000..10303c43 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseLib/X64/Mwait.nasm @@ -0,0 +1,35 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> +; SPDX-License-Identifier: BSD-2-Clause-Patent +; +; Module Name: +; +; Mwait.Asm +; +; Abstract: +; +; AsmMwait function +; +; Notes: +; +;------------------------------------------------------------------------------ + + DEFAULT REL + SECTION .text + +;------------------------------------------------------------------------------ +; UINT64 +; EFIAPI +; AsmMwait ( +; IN UINTN Eax, +; IN UINTN Ecx +; ); +;------------------------------------------------------------------------------ +global ASM_PFX(AsmMwait) +ASM_PFX(AsmMwait): + mov eax, ecx + mov ecx, edx + DB 0xf, 1, 0xc9 ; mwait + ret + |