IntelFrameworkModulePkg LegacyBiosDxe: Convert Ia32/InterruptTable.asm to NASM
The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
Ia32/InterruptTable.asm to Ia32/InterruptTable.nasm.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/IA32/InterruptTable.nasm b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/IA32/InterruptTable.nasm
new file mode 100644
index 0000000..979185b
--- /dev/null
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/IA32/InterruptTable.nasm
@@ -0,0 +1,70 @@
+;; @file
+; Interrupt Redirection Template
+;
+; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+;
+; This program and the accompanying materials
+; are licensed and made available under the terms and conditions
+; of the BSD License which accompanies this distribution. The
+; full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;;
+
+SECTION .text
+
+;----------------------------------------------------------------------------
+; Procedure: InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F
+;
+; Input: None
+;
+; Output: None
+;
+; Prototype: VOID
+; InterruptRedirectionTemplate (
+; VOID
+; );
+;
+; Saves: None
+;
+; Modified: None
+;
+; Description: Contains the code that is copied into low memory (below 640K).
+; This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f.
+; This template must be copied into low memory, and the IDT entries
+; 0x68-0x6F must be point to the low memory copy of this code. Each
+; entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily
+; computed.
+;
+;----------------------------------------------------------------------------
+
+global ASM_PFX(InterruptRedirectionTemplate)
+ASM_PFX(InterruptRedirectionTemplate):
+ int 0x8
+ DB 0xcf ; IRET
+ nop
+ int 0x9
+ DB 0xcf ; IRET
+ nop
+ int 0xa
+ DB 0xcf ; IRET
+ nop
+ int 0xb
+ DB 0xcf ; IRET
+ nop
+ int 0xc
+ DB 0xcf ; IRET
+ nop
+ int 0xd
+ DB 0xcf ; IRET
+ nop
+ int 0xe
+ DB 0xcf ; IRET
+ nop
+ int 0xf
+ DB 0xcf ; IRET
+ nop
+
