43 lines
1.8 KiB
C++
43 lines
1.8 KiB
C++
/****************************************************************************
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* *
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* Project64 - A Nintendo 64 emulator. *
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* http://www.pj64-emu.com/ *
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* Copyright (C) 2016 Project64. All rights reserved. *
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* Copyright (C) 2012 Bobby Smiles *
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* Copyright (C) 2009 Richard Goedeken *
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* Copyright (C) 2002 Hacktarux *
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* *
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* License: *
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* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
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* version 2 of the License, or (at your option) any later version. *
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* *
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****************************************************************************/
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#include "stdafx.h"
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#include <string.h>
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/**
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* During IPL3 stage of CIC x105 games, the RSP performs some checks and transactions
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* necessary for booting the game.
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*
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* We only implement the needed DMA transactions for booting.
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*
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* Found in Banjo-Tooie, Zelda, Perfect Dark, ...)
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**/
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void cicx105_ucode(CHle * hle)
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{
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/* memcpy is okay to use because access constrains are met (alignment, size) */
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unsigned int i;
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unsigned char *dst = hle->dram() + 0x2fb1f0;
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unsigned char *src = hle->imem() + 0x120;
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/* dma_read(0x1120, 0x1e8, 0x1e8) */
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memcpy(hle->imem() + 0x120, hle->dram() + 0x1e8, 0x1f0);
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/* dma_write(0x1120, 0x2fb1f0, 0xfe817000) */
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for (i = 0; i < 24; ++i)
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{
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memcpy(dst, src, 8);
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dst += 0xff0;
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src += 0x8;
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}
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} |