336 lines
10 KiB
C++
336 lines
10 KiB
C++
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/****************************************************************************
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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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* *
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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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#include "mem.h"
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#include "ucodes.h"
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#include <memory.h>
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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/* helper functions prototypes */
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static unsigned int sum_bytes(const uint8_t *bytes, uint32_t size);
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CHle::CHle(const RSP_INFO & Rsp_Info) :
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m_dram(Rsp_Info.RDRAM),
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m_dmem(Rsp_Info.DMEM),
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m_imem(Rsp_Info.IMEM),
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m_mi_intr(Rsp_Info.MI_INTR_REG),
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m_sp_mem_addr(Rsp_Info.SP_MEM_ADDR_REG),
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m_sp_dram_addr(Rsp_Info.SP_DRAM_ADDR_REG),
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m_sp_rd_length(Rsp_Info.SP_RD_LEN_REG),
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m_sp_wr_length(Rsp_Info.SP_WR_LEN_REG),
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m_sp_status(Rsp_Info.SP_STATUS_REG),
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m_sp_dma_full(Rsp_Info.SP_DMA_FULL_REG),
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m_sp_dma_busy(Rsp_Info.SP_DMA_BUSY_REG),
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m_sp_pc(Rsp_Info.SP_PC_REG),
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m_sp_semaphore(Rsp_Info.SP_SEMAPHORE_REG),
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m_dpc_start(Rsp_Info.DPC_START_REG),
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m_dpc_end(Rsp_Info.DPC_END_REG),
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m_dpc_current(Rsp_Info.DPC_CURRENT_REG),
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m_dpc_status(Rsp_Info.DPC_STATUS_REG),
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m_dpc_clock(Rsp_Info.DPC_CLOCK_REG),
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m_dpc_bufbusy(Rsp_Info.DPC_BUFBUSY_REG),
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m_dpc_pipebusy(Rsp_Info.DPC_PIPEBUSY_REG),
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m_dpc_tmem(Rsp_Info.DPC_TMEM_REG),
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m_CheckInterrupts(Rsp_Info.CheckInterrupts),
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m_ProcessDList(Rsp_Info.ProcessDList),
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m_ProcessAList(Rsp_Info.ProcessAList),
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m_ProcessRdpList(Rsp_Info.ProcessRdpList),
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m_ShowCFB(Rsp_Info.ShowCFB),
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m_AudioHle(false),
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m_GraphicsHle(true),
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m_ForwardAudio(false),
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m_ForwardGFX(true)
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{
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//m_AudioHle = ReadCfgInt("Settings", "AudioHle", false);
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//m_GraphicsHle = ReadCfgInt("Settings", "GraphicsHle", true);
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memset(&m_alist_buffer, 0, sizeof(m_alist_buffer));
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memset(&m_alist_audio, 0, sizeof(m_alist_audio));
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memset(&m_alist_naudio, 0, sizeof(m_alist_naudio));
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memset(&m_alist_nead, 0, sizeof(m_alist_nead));
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memset(&m_mp3_buffer, 0, sizeof(m_mp3_buffer));
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}
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CHle::~CHle()
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{
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}
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void CHle::rsp_break(unsigned int setbits)
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{
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*m_sp_status |= setbits | SP_STATUS_BROKE | SP_STATUS_HALT;
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if ((*m_sp_status & SP_STATUS_INTR_BREAK))
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{
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*m_mi_intr |= MI_INTR_SP;
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m_CheckInterrupts();
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}
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}
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void CHle::hle_execute(void)
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{
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if (is_task())
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{
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if (!try_fast_task_dispatching())
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{
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normal_task_dispatching();
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}
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rsp_break(SP_STATUS_SIG2);
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}
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else
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{
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non_task_dispatching();
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rsp_break(0);
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}
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}
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/* local functions */
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static unsigned int sum_bytes(const uint8_t * bytes, unsigned int size)
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{
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unsigned int sum = 0;
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const unsigned char *const bytes_end = bytes + size;
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while (bytes != bytes_end)
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{
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sum += *bytes++;
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}
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return sum;
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}
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/**
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* Try to figure if the RSP was launched using osSpTask* functions
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* and not run directly (in which case DMEM[0xfc0-0xfff] is meaningless).
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*
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* Previously, the ucode_size field was used to determine this,
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* but it is not robust enough (hi Pokemon Stadium !) because games could write anything
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* in this field : most ucode_boot discard the value and just use 0xf7f anyway.
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*
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* Using ucode_boot_size should be more robust in this regard.
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**/
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bool CHle::is_task(void)
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{
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return (*dmem_u32(this, TASK_UCODE_BOOT_SIZE) <= 0x1000);
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}
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bool CHle::try_fast_task_dispatching(void)
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{
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/* identify task ucode by its type */
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switch (*dmem_u32(this, TASK_TYPE))
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{
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case 1:
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if (m_ForwardGFX)
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{
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m_ProcessDList();
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return true;
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}
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break;
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case 2:
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if (m_AudioHle)
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{
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m_ProcessAList();
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return true;
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}
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else if (try_fast_audio_dispatching())
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{
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return true;
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}
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break;
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case 7:
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m_ShowCFB();
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return true;
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}
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return false;
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}
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bool CHle::try_fast_audio_dispatching(void)
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{
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/* identify audio ucode by using the content of ucode_data */
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uint32_t ucode_data = *dmem_u32(this, TASK_UCODE_DATA);
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uint32_t v;
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if (*dram_u32(this, ucode_data) == 0x00000001)
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{
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if (*dram_u32(this, ucode_data + 0x30) == 0xf0000f00)
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{
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v = *dram_u32(this, ucode_data + 0x28);
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switch (v)
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{
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case 0x1e24138c: /* audio ABI (most common) */
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alist_process_audio(this);
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return true;
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case 0x1dc8138c: /* GoldenEye */
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alist_process_audio_ge(this);
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return true;
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case 0x1e3c1390: /* BlastCorp, DiddyKongRacing */
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alist_process_audio_bc(this);
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return true;
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default:
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WarnMessage("ABI1 identification regression: v=%08x", v);
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}
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}
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else
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{
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v = *dram_u32(this, ucode_data + 0x10);
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switch (v)
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{
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case 0x11181350: /* MarioKart, WaveRace (E) */
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alist_process_nead_mk(this);
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return true;
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case 0x111812e0: /* StarFox (J) */
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alist_process_nead_sfj(this);
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return true;
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case 0x110412ac: /* WaveRace (J RevB) */
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alist_process_nead_wrjb(this);
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return true;
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case 0x110412cc: /* StarFox/LylatWars (except J) */
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alist_process_nead_sf(this);
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return true;
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case 0x1cd01250: /* FZeroX */
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alist_process_nead_fz(this);
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return true;
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case 0x1f08122c: /* YoshisStory */
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alist_process_nead_ys(this);
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return true;
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case 0x1f38122c: /* 1080<38> Snowboarding */
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alist_process_nead_1080(this);
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return true;
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case 0x1f681230: /* Zelda OoT / Zelda MM (J, J RevA) */
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alist_process_nead_oot(this);
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return true;
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case 0x1f801250: /* Zelda MM (except J, J RevA, E Beta), PokemonStadium 2 */
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alist_process_nead_mm(this);
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return true;
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case 0x109411f8: /* Zelda MM (E Beta) */
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alist_process_nead_mmb(this);
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return true;
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case 0x1eac11b8: /* AnimalCrossing */
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alist_process_nead_ac(this);
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return true;
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case 0x00010010: /* MusyX v2 (IndianaJones, BattleForNaboo) */
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musyx_v2_task(this);
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return true;
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default:
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WarnMessage("ABI2 identification regression: v=%08x", v);
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}
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}
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}
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else
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{
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v = *dram_u32(this, ucode_data + 0x10);
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switch (v)
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{
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case 0x00000001: /* MusyX v1
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RogueSquadron, ResidentEvil2, PolarisSnoCross,
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TheWorldIsNotEnough, RugratsInParis, NBAShowTime,
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HydroThunder, Tarzan, GauntletLegend, Rush2049 */
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musyx_v1_task(this);
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return true;
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case 0x0000127c: /* naudio (many games) */
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alist_process_naudio(this);
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return true;
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case 0x00001280: /* BanjoKazooie */
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alist_process_naudio_bk(this);
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return true;
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case 0x1c58126c: /* DonkeyKong */
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alist_process_naudio_dk(this);
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return true;
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case 0x1ae8143c: /* BanjoTooie, JetForceGemini, MickeySpeedWayUSA, PerfectDark */
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alist_process_naudio_mp3(this);
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return true;
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case 0x1ab0140c: /* ConkerBadFurDay */
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alist_process_naudio_cbfd(this);
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return true;
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default:
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WarnMessage("ABI3 identification regression: v=%08x", v);
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}
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}
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return false;
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}
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void CHle::normal_task_dispatching(void)
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{
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const unsigned int sum =
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sum_bytes((const uint8_t *)dram_u32(this, *dmem_u32(this, TASK_UCODE)), min(*dmem_u32(this, TASK_UCODE_SIZE), 0xf80) >> 1);
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switch (sum) {
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/* StoreVe12: found in Zelda Ocarina of Time [misleading task->type == 4] */
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case 0x278:
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/* Nothing to emulate */
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return;
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/* GFX: Twintris [misleading task->type == 0] */
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case 0x212ee:
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if (m_ForwardGFX)
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{
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m_ProcessDList();
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return;
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}
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break;
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/* JPEG: found in Pokemon Stadium J */
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case 0x2c85a:
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jpeg_decode_PS0(this);
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return;
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/* JPEG: found in Zelda Ocarina of Time, Pokemon Stadium 1, Pokemon Stadium 2 */
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case 0x2caa6:
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jpeg_decode_PS(this);
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return;
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/* JPEG: found in Ogre Battle, Bottom of the 9th */
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case 0x130de:
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case 0x278b0:
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jpeg_decode_OB(this);
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return;
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}
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WarnMessage("unknown OSTask: sum: %x PC:%x", sum, *m_sp_pc);
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#ifdef ENABLE_TASK_DUMP
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dump_unknown_task(this, sum);
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#endif
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}
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void CHle::non_task_dispatching(void)
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{
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const unsigned int sum = sum_bytes(m_imem, 44);
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if (sum == 0x9e2)
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{
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/* CIC x105 ucode (used during boot of CIC x105 games) */
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cicx105_ucode(this);
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return;
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}
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WarnMessage("unknown RSP code: sum: %x PC:%x", sum, *m_sp_pc);
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#ifdef ENABLE_TASK_DUMP
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dump_unknown_non_task(hle, sum);
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#endif
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}
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#if defined(_WIN32) && defined(_DEBUG)
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#include <Windows.h>
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#endif
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void CHle::VerboseMessage(const char *message, ...)
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{
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#if defined(_WIN32) && defined(_DEBUG)
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// These can get annoying.
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#if 0
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MessageBox(NULL, message, "HLE Verbose Message", MB_OK);
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#endif
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#endif
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}
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void CHle::WarnMessage(const char *message, ...)
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{
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#if defined(_WIN32) && defined(_DEBUG)
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MessageBox(NULL, message, "HLE Warning Message", MB_OK);
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#endif
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}
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