NTR_Launcher/BootLoader/source/clear_mem.s
ApacheThunder e561b44b7f Merged improvements from NitroHax
The following commits were merged:

0fe83d2b25

a87af83597

47ea3da285

66740e751a

No new problems were intreduced however this did not resolve the failure
to boot/read slot-1.
2017-02-14 15:17:25 -06:00

45 lines
1.1 KiB
ArmAsm
Executable File

@ NitroHax -- Cheat tool for the Nintendo DS
@ Copyright (C) 2008 Michael "Chishm" Chisholm
@
@ This program is free software: you can redistribute it and/or modify
@ it under the terms of the GNU General Public License as published by
@ the Free Software Foundation, either version 3 of the License, or
@ (at your option) any later version.
@
@ This program is distributed in the hope that it will be useful,
@ but WITHOUT ANY WARRANTY; without even the implied warranty of
@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
@ GNU General Public License for more details.
@
@ You should have received a copy of the GNU General Public License
@ along with this program. If not, see <http://www.gnu.org/licenses/>.
@ void arm7_clearmem (void* loc, size_t len);
@ Clears memory using an stmia loop
#include <nds/asminc.h>
.arm
BEGIN_ASM_FUNC arm7_clearmem
add r1, r0, r1
stmfd sp!, {r4-r9}
mov r2, #0
mov r3, #0
mov r4, #0
mov r5, #0
mov r6, #0
mov r7, #0
mov r8, #0
mov r9, #0
clearmem_loop:
stmia r0!, {r2-r9}
cmp r0, r1
blt clearmem_loop
ldmfd sp!, {r4-r9}
bx lr