mirror of https://github.com/acidanthera/audk.git
119 lines
3.2 KiB
ArmAsm
119 lines
3.2 KiB
ArmAsm
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/// @file
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/// IPF specific Debug Breakpoint Registers accessing functions
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///
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/// Copyright (c) 2006, Intel Corporation
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/// All rights reserved. This program and the accompanying materials
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/// are licensed and made available under the terms and conditions of the BSD License
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/// which accompanies this distribution. The full text of the license may be found at
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/// http://opensource.org/licenses/bsd-license.php
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///
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/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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///
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/// Module Name: AccessDbr.s
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///
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///
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//---------------------------------------------------------------------------------
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//++
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// AsmReadDbr
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//
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// This routine is used to Reads the current value of Data Breakpoint Register (DBR).
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//
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// Arguments :
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//
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// On Entry : The 8-bit DBR index to read.
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//
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// Return Value: The current value of DBR by Index.
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//
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//--
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//----------------------------------------------------------------------------------
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.text
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.type AsmReadDbr, @function
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.proc AsmReadDbr
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.regstk 1, 0, 0, 0
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AsmReadDbr::
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mov r8 = dbr[in0];;
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br.ret.dpnt b0;;
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.endp AsmReadDbr
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//---------------------------------------------------------------------------------
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//++
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// AsmWriteDbr
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//
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// This routine is used to write the current value to Data Breakpoint Register (DBR).
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//
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// Arguments :
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//
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// On Entry : The 8-bit DBR index to read.
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// The value should be written to DBR
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//
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// Return Value: The value written to DBR.
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//
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//--
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//----------------------------------------------------------------------------------
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.text
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.type AsmWriteDbr, @function
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.proc AsmWriteDbr
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.regstk 2, 0, 0, 0
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AsmWriteDbr::
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mov dbr[in0] = in1
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mov r8 = in1;;
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srlz.d;;
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br.ret.dpnt b0;;
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.endp AsmWriteDbr
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//---------------------------------------------------------------------------------
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//++
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// AsmReadIbr
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//
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// This routine is used to Reads the current value of Instruction Breakpoint Register (IBR).
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//
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// Arguments :
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//
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// On Entry : The 8-bit IBR index.
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//
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// Return Value: The current value of IBR by Index.
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//
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//--
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//----------------------------------------------------------------------------------
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.text
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.type AsmReadIbr, @function
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.proc AsmReadIbr
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.regstk 1, 0, 0, 0
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AsmReadIbr::
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mov r8 = ibr[in0];;
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br.ret.dpnt b0;;
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.endp AsmReadIbr
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//---------------------------------------------------------------------------------
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//++
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// AsmWriteIbr
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//
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// This routine is used to write the current value to Instruction Breakpoint Register (IBR).
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//
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// Arguments :
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//
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// On Entry : The 8-bit IBR index.
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// The value should be written to IBR
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//
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// Return Value: The value written to IBR.
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//
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//--
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//----------------------------------------------------------------------------------
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.text
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.type AsmWriteIbr, @function
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.proc AsmWriteIbr
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.regstk 2, 0, 0, 0
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AsmWriteIbr::
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mov ibr[in0] = in1
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mov r8 = in1;;
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srlz.i;;
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br.ret.dpnt b0;;
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.endp AsmWriteIbr
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