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https://github.com/rvtr/ctr_firmware.git
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c087e62b84
git-svn-id: file:///Volumes/Transfer/gigaleak_20231201/2020-09-30%20-%20paladin.7z/paladin/ctr_firmware@181 b871894f-2f95-9b40-918c-086798483c85
91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*---------------------------------------------------------------------------*
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Project: CtrBrom - OS
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File: os_protectionUnit.c
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Copyright 2009 Nintendo. All rights reserved.
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These coded instructions, statements, and computer programs contain
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proprietary information of Nintendo of America Inc. and/or Nintendo
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Company Ltd., and are protected by Federal copyright law. They may
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not be disclosed to third parties or copied or duplicated in any form,
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in whole or in part, without the prior written consent of Nintendo.
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$Date:: $
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$Rev$
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$Author$
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*---------------------------------------------------------------------------*/
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#include <brom/os.h>
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#include <brom/code32.h>
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//======================================================================
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// protection unit
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//======================================================================
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/*---------------------------------------------------------------------------*
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Name: osEnableProtectionUnit
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Description: enable protection unit
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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asm void osEnableProtectionUnit( void )
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{
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mrc p15, 0, r0, c1, c0, 0
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orr r0, r0, #HW_C1_PROTECT_UNIT_ENABLE
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mcr p15, 0, r0, c1, c0, 0
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bx lr
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}
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/*---------------------------------------------------------------------------*
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Name: osDisableProtectionUnit
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Description: disable protection unit
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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asm void osDisableProtectionUnit( void )
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{
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mrc p15, 0, r0, c1, c0, 0
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bic r0, r0, #HW_C1_PROTECT_UNIT_ENABLE
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mcr p15, 0, r0, c1, c0, 0
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bx lr
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}
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/*---------------------------------------------------------------------------*
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Name: i_osFinalizeProtectionUnit
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Description: finalize protection unit
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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asm void i_osFinalizeProtectionUnit( void )
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{
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// <20>v<EFBFBD><76><EFBFBD>e<EFBFBD>N<EFBFBD>V<EFBFBD><56><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>j<EFBFBD>b<EFBFBD>g<EFBFBD><67><EFBFBD>L<EFBFBD><4C><EFBFBD>b<EFBFBD>V<EFBFBD><56><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>BITCM <20><> DTCM<43>͗L<CD97><4C>
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ldr r0, = HW_C1_ITCM_ENABLE | HW_C1_DTCM_ENABLE | HW_C1_EXCEPT_VEC_UPPER | HW_C1_SB1_BITSET
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mcr p15, 0, r0, c1, c0, 0
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// ITCM<43>̊<EFBFBD><CC8A>蓖<EFBFBD>Ă<EFBFBD><C482><EFBFBD><EFBFBD><EFBFBD>
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// mov r0, #0
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// mcr p15, 0, r0, c6, c5, 0
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// DTCM<43>̊<EFBFBD><CC8A>蓖<EFBFBD>Ă<EFBFBD><C482><EFBFBD><EFBFBD><EFBFBD>
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// mov r0,#0
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// mcr p15, 0, r0, c9, c1, 0
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// <20>L<EFBFBD><4C><EFBFBD>b<EFBFBD>V<EFBFBD><56><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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mov r0, #0
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mcr p15, 0, r0, c7, c5, 0 // <20><><EFBFBD>߃L<DF83><4C><EFBFBD>b<EFBFBD>V<EFBFBD><56>
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mcr p15, 0, r0, c7, c6, 0 // <20>f<EFBFBD>[<5B>^<5E>L<EFBFBD><4C><EFBFBD>b<EFBFBD>V<EFBFBD><56>
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// <20><><EFBFBD>C<EFBFBD>g<EFBFBD>o<EFBFBD>b<EFBFBD>t<EFBFBD>@ <20>G<EFBFBD><47><EFBFBD>v<EFBFBD>e<EFBFBD>B<EFBFBD>҂<EFBFBD>
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mcr p15, 0, r0, c7, c10, 4
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bx lr
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}
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