remove some comments introduced by tools.
[mirror_edk2.git] / MdeModulePkg / Universal / DebugSupportDxe / ipf / Ds64Macros.i
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c1f23d63 1//++\r
2// Copyright (c) 2006, Intel Corporation \r
3// All rights reserved. This program and the accompanying materials \r
4// are licensed and made available under the terms and conditions of the BSD License \r
5// which accompanies this distribution. The full text of the license may be found at \r
6// http://opensource.org/licenses/bsd-license.php \r
7// \r
8// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
9// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
10// \r
11// Module Name:\r
12//\r
13// Ds64Macros.i\r
14//\r
15// Abstract:\r
16//\r
17// This is set of macros used in calculating offsets in the IVT\r
18//\r
19// Revision History:\r
20//\r
21//--\r
22\r
23#define EXCPT_EXTERNAL_INTERRUPT 12\r
24#define MASK_0_4 0x000000000000001F // mask bits 0 through 4\r
25#define SLOT0 0\r
26#define SLOT1 1\r
27#define SLOT2 2\r
28\r
29#define PSR_DT 17\r
30#define PSR_TB 26\r
31#define PSR_RT 27\r
32#define PSR_IS 34\r
33#define PSR_IT 36\r
34#define PSR_IC 13\r
35#define PSR_I 14\r
36#define PSR_SS 40\r
37#define PSR_BN 44\r
38#define PSR_RI_MASK 0x60000000000\r
39\r
40#define EXCPT_EXTERNAL_INTERRUPT 12\r
41\r
42#define SCRATCH_REG0 r23\r
43#define SCRATCH_REG1 r24\r
44#define SCRATCH_REG2 r25\r
45#define SCRATCH_REG3 r26\r
46#define SCRATCH_REG4 r27\r
47#define SCRATCH_REG5 r28\r
48#define SCRATCH_REG6 r29\r
49#define PR_REG r30\r
50#define B0_REG r31\r
51\r
52\r
53// EXT_INT_OFFSET is the offset of the external interrupt entry in the IVT\r
54#define EXT_INT_ENTRY_OFFSET 0x03000\r
55\r
56// PATCH_ENTRY_OFFSET is the offset into the IVT of the entry that is coopted (stolen)\r
57// for use by the handler. The entire entry is restored when the handler is\r
58// unloaded.\r
59#define PATCH_ENTRY_OFFSET 0x03400\r
60\r
61// PATCH_BUNDLES is the number of bundles actually in the patch\r
62#define NUM_PATCH_BUNDLES ((EndPatchCode - PatchCode) / 0x10)\r
63\r
64// A hard coded branch back into the external interrupt IVT entry's second bundle\r
65// is put here, just in case the original bundle zero did not have a branch\r
66// This is the last bundle in the reserved IVT entry\r
67#define FAILSAFE_BRANCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - 0x10)\r
68\r
69// the original external interrupt IVT entry bundle zero is copied and relocated\r
70// here... also in the reserved IVT entry\r
71// This is the second-to-last bundle in the reserved IVT entry\r
72#define RELOCATED_EXT_INT (PATCH_ENTRY_OFFSET + 0x400 - 0x20)\r
73\r
74// The patch is actually stored at the end of IVT:PATCH_ENTRY. The PATCH_OFFSET\r
75// is the offset into IVT where the patch is actually stored. It is carefully\r
76// located so that when we run out of patch code, the next bundle is the\r
77// relocated bundle 0 from the original external interrupt handler\r
78#define PATCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCode ) - 0x20)\r
79\r
80#define PATCH_RETURN_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCodeRet ) - 0x20)\r
81\r
82// PATCH_BRANCH is used only in the new bundle that is placed at the beginning\r
83// of the external interrupt IVT entry.\r
84#define PATCH_BRANCH (PATCH_OFFSET - EXT_INT_ENTRY_OFFSET)\r
85\r