682 lines
17 KiB
C++
682 lines
17 KiB
C++
/****************************************************************************
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* *
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* Project 64 - A Nintendo 64 emulator. *
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* http://www.pj64-emu.com/ *
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* Copyright (C) 2012 Project64. All rights reserved. *
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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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* *
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****************************************************************************/
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#include "stdafx.h"
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int CPifRamSettings::m_RefCount = 0;
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bool CPifRamSettings::m_bShowPifRamErrors = false;
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CPifRamSettings::CPifRamSettings()
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{
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m_RefCount += 1;
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if (m_RefCount == 1)
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{
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g_Settings->RegisterChangeCB(Debugger_ShowPifErrors,NULL,RefreshSettings);
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RefreshSettings(NULL);
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}
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}
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CPifRamSettings::~CPifRamSettings()
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{
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m_RefCount -= 1;
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if (m_RefCount == 0)
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{
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g_Settings->UnregisterChangeCB(Debugger_ShowPifErrors,NULL,RefreshSettings);
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}
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}
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void CPifRamSettings::RefreshSettings(void *)
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{
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m_bShowPifRamErrors = g_Settings->LoadBool(Debugger_ShowPifErrors);
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}
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CPifRam::CPifRam( bool SavesReadOnly ) :
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CEeprom(SavesReadOnly)
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{
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Reset();
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}
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CPifRam::~CPifRam()
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{
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}
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void CPifRam::Reset()
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{
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memset(m_PifRam,0,sizeof(m_PifRam));
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memset(m_PifRom,0,sizeof(m_PifRom));
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}
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void CPifRam::n64_cic_nus_6105(char challenge[], char respone[], int length)
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{
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static char lut0[0x10] = {
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0x4, 0x7, 0xA, 0x7, 0xE, 0x5, 0xE, 0x1,
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0xC, 0xF, 0x8, 0xF, 0x6, 0x3, 0x6, 0x9
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};
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static char lut1[0x10] = {
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0x4, 0x1, 0xA, 0x7, 0xE, 0x5, 0xE, 0x1,
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0xC, 0x9, 0x8, 0x5, 0x6, 0x3, 0xC, 0x9
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};
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char key, *lut;
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int i, sgn, mag, mod;
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for (key = 0xB, lut = lut0, i = 0; i < length; i++)
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{
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respone[i] = (key + 5 * challenge[i]) & 0xF;
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key = lut[respone[i]];
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sgn = (respone[i] >> 3) & 0x1;
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mag = ((sgn == 1) ? ~respone[i] : respone[i]) & 0x7;
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mod = (mag % 3 == 1) ? sgn : 1 - sgn;
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if (lut == lut1 && (respone[i] == 0x1 || respone[i] == 0x9))
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{
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mod = 1;
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}
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if (lut == lut1 && (respone[i] == 0xB || respone[i] == 0xE))
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{
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mod = 0;
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}
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lut = (mod == 1) ? lut1 : lut0;
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}
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}
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void CPifRam::PifRamRead()
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{
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if (m_PifRam[0x3F] == 0x2)
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{
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return;
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}
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CONTROL * Controllers = g_Plugins->Control()->PluginControllers();
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int Channel = 0;
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for (int CurPos = 0; CurPos < 0x40; CurPos ++)
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{
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switch (m_PifRam[CurPos])
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{
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case 0x00:
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Channel += 1;
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if (Channel > 6)
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{
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CurPos = 0x40;
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}
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break;
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case 0xFE: CurPos = 0x40; break;
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case 0xFF: break;
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case 0xB4: case 0x56: case 0xB8: break; /* ??? */
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default:
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if ((m_PifRam[CurPos] & 0xC0) == 0)
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{
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if (Channel < 4)
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{
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if (Controllers[Channel].Present && Controllers[Channel].RawData)
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{
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if (g_Plugins->Control()->ReadController)
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{
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g_Plugins->Control()->ReadController(Channel,&m_PifRam[CurPos]);
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}
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}
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else
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{
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ReadControllerCommand(Channel,&m_PifRam[CurPos]);
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}
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}
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CurPos += m_PifRam[CurPos] + (m_PifRam[CurPos + 1] & 0x3F) + 1;
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Channel += 1;
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}
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else
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{
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if (bShowPifRamErrors())
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{
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g_Notify->DisplayError(stdstr_f("Unknown Command in PifRamRead(%X)",m_PifRam[CurPos]).ToUTF16().c_str());
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}
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CurPos = 0x40;
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}
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break;
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}
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}
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if (g_Plugins->Control()->ReadController)
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{
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g_Plugins->Control()->ReadController(-1,NULL);
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}
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}
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void CPifRam::PifRamWrite()
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{
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CONTROL * Controllers = g_Plugins->Control()->PluginControllers();
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int Channel = 0, CurPos;
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if ( m_PifRam[0x3F] > 0x1)
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{
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switch (m_PifRam[0x3F])
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{
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case 0x02:
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// format the 'challenge' message into 30 nibbles for X-Scale's CIC code
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{
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char Challenge[30], Response[30];
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for (int i = 0; i < 15; i++)
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{
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Challenge[i*2] = (m_PifRam[48+i] >> 4) & 0x0f;
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Challenge[i*2+1] = m_PifRam[48+i] & 0x0f;
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}
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n64_cic_nus_6105(Challenge, Response, CHALLENGE_LENGTH - 2);
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QWORD ResponseValue = 0;
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m_PifRam[46] = m_PifRam[47] = 0x00;
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for (int z = 8; z > 0; z--)
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{
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ResponseValue = (ResponseValue << 8) | ((Response[(z - 1)*2] << 4) + Response[(z - 1)*2+1]);
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}
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std::memcpy(&m_PifRam[48], &ResponseValue, sizeof(QWORD));
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ResponseValue = 0;
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for (int z = 7; z > 0; z--)
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{
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ResponseValue = (ResponseValue << 8) | ((Response[((z + 8) - 1)*2] << 4) + Response[((z + 8) - 1)*2+1]);
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}
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std::memcpy(&m_PifRam[56], &ResponseValue, sizeof(QWORD));
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}
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break;
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case 0x08:
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m_PifRam[0x3F] = 0;
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g_Reg->MI_INTR_REG |= MI_INTR_SI;
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g_Reg->SI_STATUS_REG |= SI_STATUS_INTERRUPT;
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g_Reg->CheckInterrupts();
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break;
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case 0x10:
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memset(m_PifRom,0,0x7C0);
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break;
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case 0x30:
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m_PifRam[0x3F] = 0x80;
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break;
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case 0xC0:
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memset(m_PifRam,0,0x40);
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break;
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default:
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if (bShowPifRamErrors())
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{
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g_Notify->DisplayError(stdstr_f("Unkown PifRam control: %d",m_PifRam[0x3F]).ToUTF16().c_str());
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}
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}
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return;
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}
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for (CurPos = 0; CurPos < 0x40; CurPos++)
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{
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switch (m_PifRam[CurPos])
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{
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case 0x00:
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Channel += 1;
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if (Channel > 6)
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{
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CurPos = 0x40;
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}
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break;
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case 0xFE: CurPos = 0x40; break;
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case 0xFF: break;
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case 0xB4: case 0x56: case 0xB8: break; /* ??? */
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default:
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if ((m_PifRam[CurPos] & 0xC0) == 0)
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{
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if (Channel < 4)
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{
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if (Controllers[Channel].Present && Controllers[Channel].RawData)
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{
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if (g_Plugins->Control()->ControllerCommand)
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{
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g_Plugins->Control()->ControllerCommand(Channel,&m_PifRam[CurPos]);
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}
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}
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else
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{
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ProcessControllerCommand(Channel,&m_PifRam[CurPos]);
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}
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}
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else if (Channel == 4)
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{
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EepromCommand(&m_PifRam[CurPos]);
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}
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else
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{
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if (bShowPifRamErrors())
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{
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g_Notify->DisplayError(L"Command on channel 5?");
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}
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}
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CurPos += m_PifRam[CurPos] + (m_PifRam[CurPos + 1] & 0x3F) + 1;
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Channel += 1;
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}
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else
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{
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if (bShowPifRamErrors())
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{
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g_Notify->DisplayError(stdstr_f("Unknown Command in PifRamWrite(%X)",m_PifRam[CurPos]).ToUTF16().c_str());
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}
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CurPos = 0x40;
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}
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break;
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}
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}
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m_PifRam[0x3F] = 0;
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if (g_Plugins->Control()->ControllerCommand)
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{
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g_Plugins->Control()->ControllerCommand(-1,NULL);
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}
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}
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void CPifRam::SI_DMA_READ()
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{
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BYTE * PifRamPos = m_PifRam;
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BYTE * RDRAM = g_MMU->Rdram();
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uint32_t & SI_DRAM_ADDR_REG = (uint32_t &)g_Reg->SI_DRAM_ADDR_REG;
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if ((int32_t)SI_DRAM_ADDR_REG > (int32_t)g_System->RdramSize())
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{
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if (bShowPifRamErrors())
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{
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g_Notify->DisplayError(__FUNCTIONW__ L"\nSI_DRAM_ADDR_REG not in RDRam space");
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}
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return;
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}
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PifRamRead();
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SI_DRAM_ADDR_REG &= 0xFFFFFFF8;
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if ((int32_t)SI_DRAM_ADDR_REG < 0)
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{
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int32_t count, RdramPos;
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RdramPos = (int32_t)SI_DRAM_ADDR_REG;
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for (count = 0; count < 0x40; count++, RdramPos++)
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{
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if (RdramPos < 0)
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{
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continue;
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}
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RDRAM[RdramPos ^ 3] = m_PifRam[count];
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}
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}
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else
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{
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for (size_t i = 0; i < 64; i++)
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{
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RDRAM[(SI_DRAM_ADDR_REG + i) ^ 3] = PifRamPos[i];
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}
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}
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if (g_LogOptions.LogPRDMAMemStores)
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{
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int32_t count;
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char HexData[100], AsciiData[100], Addon[20];
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LogMessage("\tData DMAed to RDRAM:");
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LogMessage("\t--------------------");
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for (count = 0; count < 16; count ++ )
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{
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if ((count % 4) == 0)
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{
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sprintf(HexData,"\0");
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sprintf(AsciiData,"\0");
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}
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sprintf(Addon,"%02X %02X %02X %02X",
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m_PifRam[(count << 2) + 0], m_PifRam[(count << 2) + 1],
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m_PifRam[(count << 2) + 2], m_PifRam[(count << 2) + 3] );
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strcat(HexData,Addon);
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if (((count + 1) % 4) != 0)
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{
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sprintf(Addon,"-");
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strcat(HexData,Addon);
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}
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sprintf(Addon,"%c%c%c%c",
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m_PifRam[(count << 2) + 0], m_PifRam[(count << 2) + 1],
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m_PifRam[(count << 2) + 2], m_PifRam[(count << 2) + 3] );
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strcat(AsciiData,Addon);
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if (((count + 1) % 4) == 0)
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{
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LogMessage("\t%s %s",HexData, AsciiData);
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}
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}
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LogMessage("");
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}
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if (g_System->bDelaySI())
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{
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g_SystemTimer->SetTimer(CSystemTimer::SiTimer, 0x900, false);
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}
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else
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{
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g_Reg->MI_INTR_REG |= MI_INTR_SI;
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g_Reg->SI_STATUS_REG |= SI_STATUS_INTERRUPT;
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g_Reg->CheckInterrupts();
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}
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}
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void CPifRam::SI_DMA_WRITE()
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{
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uint8_t * PifRamPos = m_PifRam;
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uint32_t & SI_DRAM_ADDR_REG = (uint32_t &)g_Reg->SI_DRAM_ADDR_REG;
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if ((int32_t)SI_DRAM_ADDR_REG > (int32_t)g_System->RdramSize())
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{
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if (bShowPifRamErrors())
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{
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g_Notify->DisplayError(L"SI DMA\nSI_DRAM_ADDR_REG not in RDRam space");
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}
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return;
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}
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SI_DRAM_ADDR_REG &= 0xFFFFFFF8;
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uint8_t * RDRAM = g_MMU->Rdram();
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if ((int32_t)SI_DRAM_ADDR_REG < 0)
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{
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int32_t RdramPos = (int32_t)SI_DRAM_ADDR_REG;
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for (int32_t count = 0; count < 0x40; count++, RdramPos++)
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{
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if (RdramPos < 0)
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{
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m_PifRam[count] = 0; continue;
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}
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m_PifRam[count] = RDRAM[RdramPos ^ 3];
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}
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}
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else
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{
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for (size_t i = 0; i < 64; i++)
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{
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PifRamPos[i] = RDRAM[(SI_DRAM_ADDR_REG + i) ^ 3];
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}
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}
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if (g_LogOptions.LogPRDMAMemLoads)
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{
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int32_t count;
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char HexData[100], AsciiData[100], Addon[20];
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LogMessage("");
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LogMessage("\tData DMAed to the Pif Ram:");
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LogMessage("\t--------------------------");
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for (count = 0; count < 16; count ++ )
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{
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if ((count % 4) == 0)
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{
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sprintf(HexData,"\0");
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sprintf(AsciiData,"\0");
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}
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sprintf(Addon,"%02X %02X %02X %02X",
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m_PifRam[(count << 2) + 0], m_PifRam[(count << 2) + 1],
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m_PifRam[(count << 2) + 2], m_PifRam[(count << 2) + 3] );
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strcat(HexData,Addon);
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if (((count + 1) % 4) != 0)
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{
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sprintf(Addon,"-");
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strcat(HexData,Addon);
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}
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sprintf(Addon,"%c%c%c%c",
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m_PifRam[(count << 2) + 0], m_PifRam[(count << 2) + 1],
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m_PifRam[(count << 2) + 2], m_PifRam[(count << 2) + 3] );
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strcat(AsciiData,Addon);
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if (((count + 1) % 4) == 0)
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{
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LogMessage("\t%s %s",HexData, AsciiData);
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}
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}
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LogMessage("");
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}
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PifRamWrite();
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if (g_System->bDelaySI())
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{
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g_SystemTimer->SetTimer(CSystemTimer::SiTimer, 0x900, false);
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}
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else
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{
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g_Reg->MI_INTR_REG |= MI_INTR_SI;
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g_Reg->SI_STATUS_REG |= SI_STATUS_INTERRUPT;
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g_Reg->CheckInterrupts();
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}
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}
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void CPifRam::ProcessControllerCommand ( int Control, BYTE * Command)
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{
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CONTROL * Controllers = g_Plugins->Control()->PluginControllers();
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switch (Command[2])
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{
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case 0x00: // check
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case 0xFF: // reset & check ?
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if ((Command[1] & 0x80) != 0)
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{
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break;
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}
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if (bShowPifRamErrors())
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{
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if (Command[0] != 1)
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{
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g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
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}
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if (Command[1] != 3)
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{
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g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
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}
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}
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if (Controllers[Control].Present == TRUE)
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{
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Command[3] = 0x05;
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Command[4] = 0x00;
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switch ( Controllers[Control].Plugin)
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{
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case PLUGIN_TANSFER_PAK:
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case PLUGIN_RUMBLE_PAK:
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case PLUGIN_MEMPAK:
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case PLUGIN_RAW:
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Command[5] = 1; break;
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default: Command[5] = 0; break;
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}
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}
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else
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{
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Command[1] |= 0x80;
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}
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break;
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case 0x01: // read controller
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if (bShowPifRamErrors())
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{
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if (Command[0] != 1)
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{
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g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
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}
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if (Command[1] != 4)
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{
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g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
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}
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}
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if (Controllers[Control].Present == FALSE)
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{
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Command[1] |= 0x80;
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}
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break;
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case 0x02: //read from controller pack
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if (g_LogOptions.LogControllerPak)
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{
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LogControllerPakData("Read: Before Gettting Results");
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}
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if (bShowPifRamErrors())
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{
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if (Command[0] != 3)
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{
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g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
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}
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if (Command[1] != 33)
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{
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g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
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}
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}
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if (Controllers[Control].Present == TRUE)
|
|
{
|
|
switch (Controllers[Control].Plugin)
|
|
{
|
|
case PLUGIN_RUMBLE_PAK: Rumblepak::ReadFrom(Command); break;
|
|
case PLUGIN_MEMPAK: Mempak::ReadFrom(Control, Command); break;
|
|
case PLUGIN_TANSFER_PAK: /* TODO */; break;
|
|
case PLUGIN_RAW: if (g_Plugins->Control()->ControllerCommand) { g_Plugins->Control()->ControllerCommand(Control, Command); } break;
|
|
default:
|
|
memset(&Command[5], 0, 0x20);
|
|
}
|
|
|
|
if (Controllers[Control].Plugin != PLUGIN_RAW)
|
|
{
|
|
Command[0x25] = Mempak::CalculateCrc(&Command[5]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Command[1] |= 0x80;
|
|
}
|
|
if (g_LogOptions.LogControllerPak)
|
|
{
|
|
LogControllerPakData("Read: After Gettting Results");
|
|
}
|
|
break;
|
|
case 0x03: //write controller pak
|
|
if (g_LogOptions.LogControllerPak)
|
|
{
|
|
LogControllerPakData("Write: Before Processing");
|
|
}
|
|
if (bShowPifRamErrors())
|
|
{
|
|
if (Command[0] != 35)
|
|
{
|
|
g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
|
|
}
|
|
if (Command[1] != 1)
|
|
{
|
|
g_Notify->DisplayError(L"What am I meant to do with this Controller Command");
|
|
}
|
|
}
|
|
if (Controllers[Control].Present == TRUE)
|
|
{
|
|
switch (Controllers[Control].Plugin)
|
|
{
|
|
case PLUGIN_MEMPAK: Mempak::WriteTo(Control, Command); break;
|
|
case PLUGIN_RUMBLE_PAK: Rumblepak::WriteTo(Control, Command); break;
|
|
case PLUGIN_TANSFER_PAK: /* TODO */; break;
|
|
case PLUGIN_RAW: if (g_Plugins->Control()->ControllerCommand) { g_Plugins->Control()->ControllerCommand(Control, Command); } break;
|
|
}
|
|
|
|
if (Controllers[Control].Plugin != PLUGIN_RAW)
|
|
{
|
|
Command[0x25] = Mempak::CalculateCrc(&Command[5]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Command[1] |= 0x80;
|
|
}
|
|
if (g_LogOptions.LogControllerPak)
|
|
{
|
|
LogControllerPakData("Write: After Processing");
|
|
}
|
|
break;
|
|
default:
|
|
if (bShowPifRamErrors())
|
|
{
|
|
g_Notify->DisplayError(stdstr_f("Unknown ControllerCommand %d",Command[2]).ToUTF16().c_str());
|
|
}
|
|
}
|
|
}
|
|
|
|
void CPifRam::ReadControllerCommand (int Control, BYTE * Command) {
|
|
CONTROL * Controllers = g_Plugins->Control()->PluginControllers();
|
|
|
|
switch (Command[2])
|
|
{
|
|
case 0x01: // read controller
|
|
if (Controllers[Control].Present == TRUE)
|
|
{
|
|
if (bShowPifRamErrors())
|
|
{
|
|
if (Command[0] != 1) { g_Notify->DisplayError(L"What am I meant to do with this Controller Command"); }
|
|
if (Command[1] != 4) { g_Notify->DisplayError(L"What am I meant to do with this Controller Command"); }
|
|
}
|
|
|
|
const DWORD buttons = g_BaseSystem->GetButtons(Control);
|
|
std::memcpy(&Command[3], &buttons, sizeof(DWORD));
|
|
}
|
|
break;
|
|
case 0x02: //read from controller pack
|
|
if (Controllers[Control].Present == TRUE)
|
|
{
|
|
switch (Controllers[Control].Plugin)
|
|
{
|
|
case PLUGIN_RAW: if (g_Plugins->Control()->ReadController) { g_Plugins->Control()->ReadController(Control, Command); } break;
|
|
}
|
|
}
|
|
break;
|
|
case 0x03: //write controller pak
|
|
if (Controllers[Control].Present == TRUE)
|
|
{
|
|
switch (Controllers[Control].Plugin)
|
|
{
|
|
case PLUGIN_RAW: if (g_Plugins->Control()->ReadController) { g_Plugins->Control()->ReadController(Control, Command); } break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CPifRam::LogControllerPakData (char * Description)
|
|
{
|
|
BYTE * PIF_Ram = g_MMU->PifRam();
|
|
|
|
int count, count2;
|
|
char HexData[100], AsciiData[100], Addon[20];
|
|
LogMessage("\t%s:",Description);
|
|
LogMessage("\t------------------------------");
|
|
for (count = 0; count < 16; count ++ )
|
|
{
|
|
if ((count % 4) == 0)
|
|
{
|
|
sprintf(HexData,"\0");
|
|
sprintf(AsciiData,"\0");
|
|
}
|
|
sprintf(Addon,"%02X %02X %02X %02X",
|
|
PIF_Ram[(count << 2) + 0], PIF_Ram[(count << 2) + 1],
|
|
PIF_Ram[(count << 2) + 2], PIF_Ram[(count << 2) + 3] );
|
|
strcat(HexData,Addon);
|
|
if (((count + 1) % 4) != 0)
|
|
{
|
|
sprintf(Addon,"-");
|
|
strcat(HexData,Addon);
|
|
}
|
|
|
|
Addon[0] = 0;
|
|
for (count2 = 0; count2 < 4; count2++)
|
|
{
|
|
if (PIF_Ram[(count << 2) + count2] < 30)
|
|
{
|
|
strcat(Addon,".");
|
|
}
|
|
else
|
|
{
|
|
sprintf(Addon,"%s%c",Addon,PIF_Ram[(count << 2) + count2]);
|
|
}
|
|
}
|
|
strcat(AsciiData,Addon);
|
|
|
|
if (((count + 1) % 4) == 0)
|
|
{
|
|
LogMessage("\t%s %s",HexData, AsciiData);
|
|
}
|
|
}
|
|
LogMessage("");
|
|
}
|