WiiFlow_Lite/resources/extldr/cache.c

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/*
TinyLoad - a simple region free (original) game launcher in 4k
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
/* This code comes from the Twilight Hack */
// Copyright 2008-2009 Segher Boessenkool <segher@kernel.crashing.org>
// Copyright 2008-2009 Hector Martin <marcan@marcansoft.com>
#include "types.h"
void sync_before_read(void *p, u32 len)
{
u32 a, b;
a = (u32)p & ~0x1f;
b = ((u32)p + len + 0x1f) & ~0x1f;
for ( ; a < b; a += 32)
asm("dcbi 0,%0" : : "b"(a) : "memory");
asm("sync ; isync");
}
void sync_after_write(const void *p, u32 len)
{
u32 a, b;
a = (u32)p & ~0x1f;
b = ((u32)p + len + 0x1f) & ~0x1f;
for ( ; a < b; a += 32)
asm("dcbf 0,%0" : : "b"(a));
asm("sync ; isync");
}