MdeModulePkg: Replace Opcode with the corresponding instructions.

[mirror_edk2.git] / MdeModulePkg / Universal / DebugSupportDxe / Ia32 / AsmFuncs.nasm

diff --git a/MdeModulePkg/Universal/DebugSupportDxe/Ia32/AsmFuncs.nasm b/MdeModulePkg/Universal/DebugSupportDxe/Ia32/AsmFuncs.nasm
index cfb418748ffc1902c5c403ab834eda7742cab436..07fc912fe82df52b798089d41baacd612a6d62b3 100644 (file)
--- a/MdeModulePkg/Universal/DebugSupportDxe/Ia32/AsmFuncs.nasm
+++ b/MdeModulePkg/Universal/DebugSupportDxe/Ia32/AsmFuncs.nasm
@@ -1,7 +1,7 @@
 ;/** @file\r
 ;  Low leve IA32 specific debug support functions.\r
 ;\r
-;  Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
+;  Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>\r
 ;  SPDX-License-Identifier: BSD-2-Clause-Patent\r
 ;\r
 ;**/\r
@@ -26,20 +26,6 @@
 \r
 %define FXSTOR_FLAG 0x1000000         ; bit cpuid 24 of feature flags\r
 \r
-;; The FXSTOR and FXRSTOR commands are used for saving and restoring the x87,\r
-;; MMX, SSE, SSE2, etc registers.  The initialization of the debugsupport driver\r
-;; MUST check the CPUID feature flags to see that these instructions are available\r
-;; and fail to init if they are not.\r
-\r
-;; fxstor [edi]\r
-%macro FXSTOR_EDI 0\r
-                         db 0xf, 0xae, 00000111y ; mod = 00, reg/op = 000, r/m = 111 = [edi]\r
-%endmacro\r
-\r
-;; fxrstor [esi]\r
-%macro FXRSTOR_ESI 0\r
-                         db 0xf, 0xae, 00001110y ; mod = 00, reg/op = 001, r/m = 110 = [esi]\r
-%endmacro\r
 SECTION .data\r
 \r
 global ASM_PFX(OrigVector)\r
@@ -348,7 +334,7 @@ ExtraPushDone:
                 ; IMPORTANT!! The debug stack has been carefully constructed to\r
                 ; insure that esp and edi are 16 byte aligned when we get here.\r
                 ; They MUST be.  If they are not, a GP fault will occur.\r
-                FXSTOR_EDI\r
+                fxsave  [edi]\r
 \r
 ;; UEFI calling convention for IA32 requires that Direction flag in EFLAGs is clear\r
                 cld\r
@@ -372,7 +358,7 @@ ExtraPushDone:
 \r
 ;; FX_SAVE_STATE_IA32 FxSaveState;\r
                 mov     esi, esp\r
-                FXRSTOR_ESI\r
+                fxrstor [esi]\r
                 add     esp, 512\r
 \r
 ;; UINT32  Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;\r