From 5bf13c7f48fe91c7902ce50250bc1a5a2398a2ae Mon Sep 17 00:00:00 2001 From: red031000 Date: Fri, 23 Jul 2021 01:11:15 +0100 Subject: separate out libs to libc, libnns and NitroSDK --- arm9/lib/NitroSDK/src/OS_protectionUnit.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 arm9/lib/NitroSDK/src/OS_protectionUnit.c (limited to 'arm9/lib/NitroSDK/src/OS_protectionUnit.c') diff --git a/arm9/lib/NitroSDK/src/OS_protectionUnit.c b/arm9/lib/NitroSDK/src/OS_protectionUnit.c new file mode 100644 index 00000000..66811a1e --- /dev/null +++ b/arm9/lib/NitroSDK/src/OS_protectionUnit.c @@ -0,0 +1,18 @@ +#include "function_target.h" +#include "OS_protectionUnit.h" + +ARM_FUNC asm void OS_EnableProtectionUnit(void) +{ + mrc p15, 0x0, r0, c1, c0, 0x0 //Control Register + orr r0, r0, #0x1 + mcr p15, 0x0, r0, c1, c0, 0x0 //Control Register + bx lr +} + +ARM_FUNC asm void OS_DisableProtectionUnit(void) +{ + mrc p15, 0x0, r0, c1, c0, 0x0 //Control Register + bic r0, r0, #0x1 + mcr p15, 0x0, r0, c1, c0, 0x0 //Control Register + bx lr +} -- cgit v1.2.3