Rename dirs

[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / SwitchStack.asm

diff --git a/MdePkg/Library/BaseLib/X64/SwitchStack.asm b/MdePkg/Library/BaseLib/X64/SwitchStack.asm
new file mode 100644 (file)
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+++ b/MdePkg/Library/BaseLib/X64/SwitchStack.asm
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+;------------------------------------------------------------------------------\r
+;\r
+; Copyright (c) 2006, Intel Corporation\r
+; All rights reserved. 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
+; Module Name:\r
+;\r
+;   SwitchStack.Asm\r
+;\r
+; Abstract:\r
+;\r
+;------------------------------------------------------------------------------\r
+\r
+    .code\r
+\r
+;------------------------------------------------------------------------------\r
+; Routine Description:\r
+;\r
+;   Routine for switching stacks with 1 parameter\r
+;\r
+; Arguments:\r
+;\r
+;   (rcx) EntryPoint    - Entry point with new stack.\r
+;   (rdx) Context       - Parameter for entry point.\r
+;   (r8)  Context2      - Parameter2 for entry point.\r
+;   (r9)  NewStack      - Pointer to new stack.\r
+;\r
+; Returns:\r
+;\r
+;   None\r
+;\r
+;------------------------------------------------------------------------------\r
+SwitchStack PROC\r
+    mov     rax, rcx\r
+    mov     rcx, rdx\r
+    mov     rdx, r8\r
+    lea     rsp, [r9 - 20h]\r
+    call    rax\r
+SwitchStack ENDP\r
+\r
+    END\r