cog/Frameworks/lazyusf2/lazyusf2/ri/rdram_detection_hack.c

48 lines
2.1 KiB
C

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Mupen64plus - rdram_detection_hack.c *
* Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ *
* Copyright (C) 2014 Bobby Smiles *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "usf/usf.h"
#include "usf/usf_internal.h"
#include "rdram_detection_hack.h"
#include "ri_controller.h"
#include "main/main.h"
#include "si/si_controller.h"
#include <stdint.h>
/* HACK: force detected RDRAM size
* This hack is triggered just before initial ROM loading (see pi_controller.c)
*
* Proper emulation of RI/RDRAM subsystem is required to avoid this hack.
*/
void force_detected_rdram_size_hack(usf_state_t * state)
{
uint32_t address = (state->g_si.pif.cic.version != CIC_X105)
? 0x318
: 0x3f0;
state->g_ri.rdram.dram[address/4] = (uint32_t) state->g_ri.rdram.dram_size;
}