// Project64 - A Nintendo 64 emulator // https://www.pj64-emu.com/ // Copyright(C) 2001-2021 Project64 // Copyright(C) 2012 Bobby Smiles // Copyright(C) 2009 Richard Goedeken // Copyright(C) 2002 Hacktarux // GNU/GPLv2 licensed: https://gnu.org/licenses/gpl-2.0.html #include "hle.h" #include #if defined(_WIN32) && defined(_DEBUG) #include #endif #include "mem.h" #include "ucodes.h" #include #define min(a, b) (((a) < (b)) ? (a) : (b)) // Helper functions prototypes static unsigned int sum_bytes(const uint8_t * bytes, uint32_t size); CHle::CHle(const RSP_INFO & Rsp_Info) : m_dram(Rsp_Info.RDRAM), m_dmem(Rsp_Info.DMEM), m_imem(Rsp_Info.IMEM), m_mi_intr(Rsp_Info.MI_INTR_REG), m_sp_mem_addr(Rsp_Info.SP_MEM_ADDR_REG), m_sp_dram_addr(Rsp_Info.SP_DRAM_ADDR_REG), m_sp_rd_length(Rsp_Info.SP_RD_LEN_REG), m_sp_wr_length(Rsp_Info.SP_WR_LEN_REG), m_sp_status(Rsp_Info.SP_STATUS_REG), m_sp_dma_full(Rsp_Info.SP_DMA_FULL_REG), m_sp_dma_busy(Rsp_Info.SP_DMA_BUSY_REG), m_sp_pc(Rsp_Info.SP_PC_REG), m_sp_semaphore(Rsp_Info.SP_SEMAPHORE_REG), m_dpc_start(Rsp_Info.DPC_START_REG), m_dpc_end(Rsp_Info.DPC_END_REG), m_dpc_current(Rsp_Info.DPC_CURRENT_REG), m_dpc_status(Rsp_Info.DPC_STATUS_REG), m_dpc_clock(Rsp_Info.DPC_CLOCK_REG), m_dpc_bufbusy(Rsp_Info.DPC_BUFBUSY_REG), m_dpc_pipebusy(Rsp_Info.DPC_PIPEBUSY_REG), m_dpc_tmem(Rsp_Info.DPC_TMEM_REG), m_CheckInterrupts(Rsp_Info.CheckInterrupts), m_ProcessDList(Rsp_Info.ProcessDList), m_ProcessAList(Rsp_Info.ProcessAList), m_ProcessRdpList(Rsp_Info.ProcessRdpList), m_ShowCFB(Rsp_Info.ShowCFB), m_AudioHle(false), m_GraphicsHle(true), m_ForwardAudio(false), m_ForwardGFX(true) { //m_AudioHle = ReadCfgInt("Settings", "AudioHle", false); //m_GraphicsHle = ReadCfgInt("Settings", "GraphicsHle", true); memset(&m_alist_buffer, 0, sizeof(m_alist_buffer)); memset(&m_alist_audio, 0, sizeof(m_alist_audio)); memset(&m_alist_naudio, 0, sizeof(m_alist_naudio)); memset(&m_alist_nead, 0, sizeof(m_alist_nead)); memset(&m_mp3_buffer, 0, sizeof(m_mp3_buffer)); } CHle::~CHle() { } void CHle::rsp_break(unsigned int setbits) { *m_sp_status |= setbits | SP_STATUS_BROKE | SP_STATUS_HALT; if ((*m_sp_status & SP_STATUS_INTR_BREAK)) { *m_mi_intr |= MI_INTR_SP; m_CheckInterrupts(); } } void CHle::hle_execute(void) { if (is_task()) { if (!try_fast_task_dispatching()) { normal_task_dispatching(); } rsp_break(SP_STATUS_SIG2); } else { non_task_dispatching(); rsp_break(0); } } // Local functions static unsigned int sum_bytes(const uint8_t * bytes, unsigned int size) { unsigned int sum = 0; const unsigned char * const bytes_end = bytes + size; while (bytes != bytes_end) { sum += *bytes++; } return sum; } /* TODO: Try to figure if the RSP was launched using osSpTask* functions and not run directly (in which case DMEM[0xfc0-0xfff] is meaningless). Previously, the ucode_size field was used to determine this, but it is not robust enough (hi Pokémon Stadium!) because games could write anything in this field: most ucode_boot discard the value and just use 0xf7f anyway. Using ucode_boot_size should be more robust in this regard. */ bool CHle::is_task(void) { return (*dmem_u32(this, TASK_UCODE_BOOT_SIZE) <= 0x1000); } bool CHle::try_fast_task_dispatching(void) { // Identify task microcode by its type switch (*dmem_u32(this, TASK_TYPE)) { case 1: if (m_ForwardGFX) { m_ProcessDList(); return true; } break; case 2: if (m_AudioHle) { m_ProcessAList(); return true; } else if (try_fast_audio_dispatching()) { return true; } break; case 7: m_ShowCFB(); return true; } return false; } bool CHle::try_fast_audio_dispatching(void) { // Identify audio microcode by using the content of ucode_data uint32_t ucode_data = *dmem_u32(this, TASK_UCODE_DATA); uint32_t v; if (*dram_u32(this, ucode_data) == 0x00000001) { if (*dram_u32(this, ucode_data + 0x30) == 0xf0000f00) { v = *dram_u32(this, ucode_data + 0x28); switch (v) { case 0x1e24138c: // Audio ABI (most common) alist_process_audio(this); return true; case 0x1dc8138c: // GoldenEye 007 alist_process_audio_ge(this); return true; case 0x1e3c1390: // Blast Corp, Diddy Kong Racing alist_process_audio_bc(this); return true; default: WarnMessage("ABI1 identification regression: v=%08x", v); } } else { v = *dram_u32(this, ucode_data + 0x10); switch (v) { case 0x11181350: // Mario Kart, Wave Race (E) alist_process_nead_mk(this); return true; case 0x111812e0: // StarFox 64 (J) alist_process_nead_sfj(this); return true; case 0x110412ac: // Wave Race (J Rev B) alist_process_nead_wrjb(this); return true; case 0x110412cc: // StarFox/LylatWars (except J) alist_process_nead_sf(this); return true; case 0x1cd01250: // F-Zero X alist_process_nead_fz(this); return true; case 0x1f08122c: // Yoshi's Story alist_process_nead_ys(this); return true; case 0x1f38122c: // 1080° Snowboarding alist_process_nead_1080(this); return true; case 0x1f681230: // Zelda Ocarina of Time / Zelda Majora's Mask (J, J Rev A) alist_process_nead_oot(this); return true; case 0x1f801250: // Zelda Majora's Mask (except J, J Rev A, E Beta), Pokémon Stadium 2 alist_process_nead_mm(this); return true; case 0x109411f8: // Zelda Majora's Mask (E Beta) alist_process_nead_mmb(this); return true; case 0x1eac11b8: // Animal Crossing alist_process_nead_ac(this); return true; case 0x00010010: // MusyX v2 (Indiana Jones, Battle For Naboo) musyx_v2_task(this); return true; default: WarnMessage("ABI2 identification regression: v=%08x", v); } } } else { v = *dram_u32(this, ucode_data + 0x10); switch (v) { case 0x00000001: /* MusyX v1 Rogue Squadron, Resident Evil 2, Polaris Sno Cross, The World Is Not Enough, Rugrats In Paris, NBA Show Time, Hydro Thunder, Tarzan, Gauntlet Legend, Rush 2049 */ musyx_v1_task(this); return true; case 0x0000127c: // naudio (many games) alist_process_naudio(this); return true; case 0x00001280: // Banjo Kazooie alist_process_naudio_bk(this); return true; case 0x1c58126c: // Donkey Kong alist_process_naudio_dk(this); return true; case 0x1ae8143c: // Banjo Tooie, Jet Force Gemini, Mickey SpeedWay USA, Perfect Dark alist_process_naudio_mp3(this); return true; case 0x1ab0140c: // Conker's Bad Fur Day alist_process_naudio_cbfd(this); return true; default: WarnMessage("ABI3 identification regression: v=%08x", v); } } return false; } void CHle::normal_task_dispatching(void) { const unsigned int sum = sum_bytes((const uint8_t *)dram_u32(this, *dmem_u32(this, TASK_UCODE)), min(*dmem_u32(this, TASK_UCODE_SIZE), 0xf80) >> 1); switch (sum) { // StoreVe12: found in Zelda Ocarina of Time [misleading task->type == 4] case 0x278: // Nothing to emulate return; // GFX: Twintris [misleading task->type == 0] case 0x212ee: if (m_ForwardGFX) { m_ProcessDList(); return; } break; // JPEG: found in Pokémon Stadium J case 0x2c85a: jpeg_decode_PS0(this); return; // JPEG: found in Zelda Ocarina of Time, Pokémon Stadium 1, Pokémon Stadium 2 case 0x2caa6: jpeg_decode_PS(this); return; // JPEG: found in Ogre Battle, Bottom of the 9th case 0x130de: case 0x278b0: jpeg_decode_OB(this); return; } WarnMessage("Unknown OSTask: sum: %x PC:%x", sum, *m_sp_pc); #ifdef ENABLE_TASK_DUMP dump_unknown_task(this, sum); #endif } void CHle::non_task_dispatching(void) { const unsigned int sum = sum_bytes(m_imem, 44); if (sum == 0x9e2) { // CIC x105 microcode (used during boot of CIC x105 games) cicx105_ucode(this); return; } WarnMessage("Unknown RSP code: sum: %x PC:%x", sum, *m_sp_pc); #ifdef ENABLE_TASK_DUMP dump_unknown_non_task(hle, sum); #endif } void CHle::VerboseMessage(const char * /*message*/, ...) { #if defined(_WIN32) && defined(_DEBUG) // These can get annoying #if 0 MessageBox(NULL, message, "HLE verbose message", MB_OK); #endif #endif } void CHle::WarnMessage(const char * message, ...) { #if defined(_WIN32) && defined(_DEBUG) MessageBoxA(NULL, message, "HLE warning message", MB_OK); #endif }