mirror of
https://github.com/ApacheThunder/XuluMenu.git
synced 2025-06-18 19:45:45 -04:00
2550af0c99
* Can now boot stage2 (in safe block mode) if holding L-Shoulder + R-Shoulder + A + B + DPAD Up on boot. This allows using built in stage2 usb update mode for "bootleg" style N-Cards that have Xulumenu installed. * This button combo will not do anything for regular N-Card users as they already have a proper stage2 section on nand and it will always end up booting to USB update mode with this button combo before xulumenu can boot.
46 lines
1.5 KiB
ArmAsm
46 lines
1.5 KiB
ArmAsm
@ NitroHax -- Cheat tool for the Nintendo DS
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@ Copyright (C) 2008 Michael "Chishm" Chisholm
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@
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@ This program is free software: you can redistribute it and/or modify
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@ it under the terms of the GNU General Public License as published by
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@ the Free Software Foundation, either version 3 of the License, or
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@ (at your option) any later version.
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@
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@ This program is distributed in the hope that it will be useful,
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@ but WITHOUT ANY WARRANTY; without even the implied warranty of
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@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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@ GNU General Public License for more details.
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@
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@ You should have received a copy of the GNU General Public License
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@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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@ Clears ICache and Dcache, and resets the protection units
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@ Originally written by Darkain, modified by Chishm
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#include <nds/asminc.h>
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.arm
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BEGIN_ASM_FUNC arm9_clearCache
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@ Clean and flush cache
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mov r1, #0
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outer_loop:
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mov r0, #0
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inner_loop:
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orr r2, r1, r0
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mcr p15, 0, r2, c7, c14, 2
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add r0, r0, #0x20
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cmp r0, #0x400
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bne inner_loop
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add r1, r1, #0x40000000
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cmp r1, #0x0
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bne outer_loop
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mov r3, #0
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mcr p15, 0, r3, c7, c5, 0 @ Flush ICache
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mcr p15, 0, r3, c7, c6, 0 @ Flush DCache
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mcr p15, 0, r3, c7, c10, 4 @ empty write buffer
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bx lr
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