From 0dfb0011dd9d7e485ecbc8727f71d2f82b946930 Mon Sep 17 00:00:00 2001 From: red031000 Date: Sun, 24 May 2020 18:12:56 +0100 Subject: OS_protectionUnit.c --- arm9/lib/src/OS_protectionUnit.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 arm9/lib/src/OS_protectionUnit.c (limited to 'arm9/lib/src/OS_protectionUnit.c') diff --git a/arm9/lib/src/OS_protectionUnit.c b/arm9/lib/src/OS_protectionUnit.c new file mode 100644 index 00000000..be57dcd6 --- /dev/null +++ b/arm9/lib/src/OS_protectionUnit.c @@ -0,0 +1,21 @@ +// +// Created by red031000 on 2020-05-24. +// + +#include "function_target.h" + +ARM_FUNC asm void OS_EnableProtectionUnit(void) +{ + mrc p15, 0x0, r0, c1, c0, 0x0 + orr r0, r0, #0x1 + mcr p15, 0x0, r0, c1, c0, 0x0 + bx lr +} + +ARM_FUNC asm void OS_DisableProtectionUnit(void) +{ + mrc p15, 0x0, r0, c1, c0, 0x0 + bic r0, r0, #0x1 + mcr p15, 0x0, r0, c1, c0, 0x0 + bx lr +} -- cgit v1.2.3