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//++
// Copyright (c) 2006, Intel Corporation
// All rights reserved. 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.
//
// Module Name:
//
// Ds64Macros.i
//
// Abstract:
//
// This is set of macros used in calculating offsets in the IVT
//
// Revision History:
//
//--
#define EXCPT_EXTERNAL_INTERRUPT 12
#define MASK_0_4 0x000000000000001F // mask bits 0 through 4
#define SLOT0 0
#define SLOT1 1
#define SLOT2 2
#define PSR_DT 17
#define PSR_TB 26
#define PSR_RT 27
#define PSR_IS 34
#define PSR_IT 36
#define PSR_IC 13
#define PSR_I 14
#define PSR_SS 40
#define PSR_BN 44
#define PSR_RI_MASK 0x60000000000
#define EXCPT_EXTERNAL_INTERRUPT 12
#define SCRATCH_REG0 r23
#define SCRATCH_REG1 r24
#define SCRATCH_REG2 r25
#define SCRATCH_REG3 r26
#define SCRATCH_REG4 r27
#define SCRATCH_REG5 r28
#define SCRATCH_REG6 r29
#define PR_REG r30
#define B0_REG r31
// EXT_INT_OFFSET is the offset of the external interrupt entry in the IVT
#define EXT_INT_ENTRY_OFFSET 0x03000
// PATCH_ENTRY_OFFSET is the offset into the IVT of the entry that is coopted (stolen)
// for use by the handler. The entire entry is restored when the handler is
// unloaded.
#define PATCH_ENTRY_OFFSET 0x03400
// PATCH_BUNDLES is the number of bundles actually in the patch
#define NUM_PATCH_BUNDLES ((EndPatchCode - PatchCode) / 0x10)
// A hard coded branch back into the external interrupt IVT entry's second bundle
// is put here, just in case the original bundle zero did not have a branch
// This is the last bundle in the reserved IVT entry
#define FAILSAFE_BRANCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - 0x10)
// the original external interrupt IVT entry bundle zero is copied and relocated
// here... also in the reserved IVT entry
// This is the second-to-last bundle in the reserved IVT entry
#define RELOCATED_EXT_INT (PATCH_ENTRY_OFFSET + 0x400 - 0x20)
// The patch is actually stored at the end of IVT:PATCH_ENTRY. The PATCH_OFFSET
// is the offset into IVT where the patch is actually stored. It is carefully
// located so that when we run out of patch code, the next bundle is the
// relocated bundle 0 from the original external interrupt handler
#define PATCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCode ) - 0x20)
#define PATCH_RETURN_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCodeRet ) - 0x20)
// PATCH_BRANCH is used only in the new bundle that is placed at the beginning
// of the external interrupt IVT entry.
#define PATCH_BRANCH (PATCH_OFFSET - EXT_INT_ENTRY_OFFSET)
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