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