MdePkg/Library/BaseLib/Ipf/AccessDbr.s File Reference
Detailed Description
IPF specific Debug Breakpoint Registers accessing functions
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: AccessDbr.s
AsmReadDbr
This routine is used to Reads the current value of Data Breakpoint Register (DBR).
Arguments :
On Entry : The 8-bit DBR index to read.
Return Value: The current value of DBR by Index.
.text
.type AsmReadDbr,
.proc AsmReadDbr
.regstk 1, 0, 0, 0
AsmReadDbr::
mov r8 = dbr[in0];;
br.ret.dpnt b0;;
.endp AsmReadDbr
AsmWriteDbr
This routine is used to write the current value to Data Breakpoint Register (DBR).
Arguments :
On Entry : The 8-bit DBR index to read.
The value should be written to DBR
Return Value: The value written to DBR.
.text
.type AsmWriteDbr,
.proc AsmWriteDbr
.regstk 2, 0, 0, 0
AsmWriteDbr::
mov dbr[in0] = in1
mov r8 = in1;;
srlz.d;;
br.ret.dpnt b0;;
.endp AsmWriteDbr
AsmReadIbr
This routine is used to Reads the current value of Instruction Breakpoint Register (IBR).
Arguments :
On Entry : The 8-bit IBR index.
Return Value: The current value of IBR by Index.
.text
.type AsmReadIbr,
.proc AsmReadIbr
.regstk 1, 0, 0, 0
AsmReadIbr::
mov r8 = ibr[in0];;
br.ret.dpnt b0;;
.endp AsmReadIbr
AsmWriteIbr
This routine is used to write the current value to Instruction Breakpoint Register (IBR).
Arguments :
On Entry : The 8-bit IBR index.
The value should be written to IBR
Return Value: The value written to IBR.
.text
.type AsmWriteIbr,
.proc AsmWriteIbr
.regstk 2, 0, 0, 0
AsmWriteIbr::
mov ibr[in0] = in1
mov r8 = in1;;
srlz.i;;
br.ret.dpnt b0;;
.endp AsmWriteIbr