Changeset 54254 in vbox for trunk/src/VBox/Runtime/common/asm

Timestamp:

Feb 17, 2015 10:58:55 PM (10 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

98321

Message:

Added ASMGetIdtrLimit.

File:

• trunk/src/VBox/Runtime/common/asm/ASMGetIdtrLimit.asm (copied) (copied from trunk/src/VBox/Runtime/common/asm/ASMGetIDTR.asm ) (3 diffs)

trunk/src/VBox/Runtime/common/asm/ASMGetIdtrLimit.asm

@@ -1 +1 @@
 ; $Id$
 ;; @file
-; IPRT - ASMGetIDTR().
+; IPRT - ASMGetIdtrLimit().
 ;
 
 ;
-; Copyright (C) 2006-2013 Oracle Corporation
+; Copyright (C) 2006-2015 Oracle Corporation
 ;
 ; This file is part of VirtualBox Open Source Edition (OSE), as
@@ -28 +28 @@
 ;* Header Files                                                                *
 ;*******************************************************************************
+%define RT_ASM_WITH_SEH64
 %include "iprt/asmdefs.mac"
 
@@ -34 +35 @@
 ;;
 ; Gets the content of the IDTR CPU register.
-; @param    pIdtr   Where to store the IDTR contents.
-;                   msc=rcx, gcc=rdi, x86=[esp+4]
+; @returns  IDTR.LIMIT in ax
 ;
-BEGINPROC_EXPORTED ASMGetIDTR
-%ifdef ASM_CALL64_MSC
-        mov     rax, rcx
-%elifdef ASM_CALL64_GCC
-        mov     rax, rdi
-%elifdef RT_ARCH_X86
-        mov     eax, [esp + 4]
-%else
- %error "Undefined arch?"
-%endif
-        sidt    [xAX]
+BEGINPROC_EXPORTED ASMGetIdtrLimit
+        sub     xSP, 18h
+        SEH64_ALLOCATE_STACK 18h
+SEH64_END_PROLOGUE
+        sidt    [xSP + 6]
+        mov     ax, [xSP + 6]
+        add     xSP, 18h
         ret
-ENDPROC ASMGetIDTR
+ENDPROC ASMGetIdtrLimit