mirror of
https://github.com/melonDS-emu/melonDS.git
synced 2025-07-23 06:10:03 -06:00
b1c2665c39
* SCFG_BIOS now selects between NDS and DSi BIOS Allowing experimental direct boot. * - making NWRAM Priorities work as in the HW - fixed loading DSi stage2 Bootloader when in direct boot (should not be loaded) and might interfere with the image loaded into the (N)WRAM previously * NWRAM and SCFG Registers are now write-guarded by the corresponding SCFG_EXT7/9 Bits * removed debugging remainder * Moved NDSHeader dependent SCFG initialization into the new DSi::SetupDirectBoot function called from NDS::SetupDirectBoot when ConsoleType is DSi * removed redundant SCFG_BIOS bit checks * Set of changes from RSDuck's review * removed a forgotten comment * - removed the guarded debug outputs for NWRAM - NWRAM writes to bank and window registers now apply their write masks. - added comment on an existing TODO within the code describing, why this is OK - fixed initial NWRAM bank reset just accessing set A * NWRAM not mapped to 03... range if bit25 in SCFG_EXT is cleared * removed NWRAM write block on cleared bit25 in SCFG_EXT * changed type of iterator for MapNWRAM_x functions from s8 to int * - reduced calculations/comparisons on NWRAM write operations - changed u8 to unsigned int for an iterator MapNWRAM_x Co-authored-by: Tim Seidel <t.seidel@kts-systeme.de>
118 lines
2.7 KiB
C++
118 lines
2.7 KiB
C++
/*
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Copyright 2016-2021 Arisotura
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef DSI_H
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#define DSI_H
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#include "NDS.h"
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#include "DSi_SD.h"
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namespace DSi
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{
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extern u16 SCFG_BIOS;
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extern u16 SCFG_Clock9;
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extern u32 SCFG_EXT[2];
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extern u8 ARM9iBIOS[0x10000];
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extern u8 ARM7iBIOS[0x10000];
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extern u8 eMMC_CID[16];
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extern u64 ConsoleID;
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extern DSi_SDHost* SDMMC;
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extern DSi_SDHost* SDIO;
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extern FILE* SDMMCFile;
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extern FILE* SDIOFile;
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const u32 NWRAMSize = 0x40000;
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extern u8* NWRAM_A;
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extern u8* NWRAM_B;
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extern u8* NWRAM_C;
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extern u8* NWRAMMap_A[2][4];
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extern u8* NWRAMMap_B[3][8];
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extern u8* NWRAMMap_C[3][8];
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extern u32 NWRAMStart[2][3];
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extern u32 NWRAMEnd[2][3];
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extern u32 NWRAMMask[2][3];
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bool Init();
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void DeInit();
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void Reset();
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void SetupDirectBoot();
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void SoftReset();
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bool LoadBIOS();
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bool LoadNAND();
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void CloseDSiNAND();
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void RunNDMAs(u32 cpu);
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void StallNDMAs();
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bool NDMAsInMode(u32 cpu, u32 mode);
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bool NDMAsRunning(u32 cpu);
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void CheckNDMAs(u32 cpu, u32 mode);
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void StopNDMAs(u32 cpu, u32 mode);
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void MapNWRAM_A(u32 num, u8 val);
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void MapNWRAM_B(u32 num, u8 val);
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void MapNWRAM_C(u32 num, u8 val);
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void MapNWRAMRange(u32 cpu, u32 num, u32 val);
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u8 ARM9Read8(u32 addr);
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u16 ARM9Read16(u32 addr);
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u32 ARM9Read32(u32 addr);
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void ARM9Write8(u32 addr, u8 val);
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void ARM9Write16(u32 addr, u16 val);
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void ARM9Write32(u32 addr, u32 val);
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bool ARM9GetMemRegion(u32 addr, bool write, NDS::MemRegion* region);
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u8 ARM7Read8(u32 addr);
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u16 ARM7Read16(u32 addr);
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u32 ARM7Read32(u32 addr);
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void ARM7Write8(u32 addr, u8 val);
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void ARM7Write16(u32 addr, u16 val);
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void ARM7Write32(u32 addr, u32 val);
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bool ARM7GetMemRegion(u32 addr, bool write, NDS::MemRegion* region);
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u8 ARM9IORead8(u32 addr);
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u16 ARM9IORead16(u32 addr);
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u32 ARM9IORead32(u32 addr);
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void ARM9IOWrite8(u32 addr, u8 val);
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void ARM9IOWrite16(u32 addr, u16 val);
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void ARM9IOWrite32(u32 addr, u32 val);
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u8 ARM7IORead8(u32 addr);
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u16 ARM7IORead16(u32 addr);
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u32 ARM7IORead32(u32 addr);
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void ARM7IOWrite8(u32 addr, u8 val);
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void ARM7IOWrite16(u32 addr, u16 val);
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void ARM7IOWrite32(u32 addr, u32 val);
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}
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#endif // DSI_H
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