ShuriZma
/
dolphin
mirror of https://github.com/dolphin-emu/dolphin.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

DSPLLE: comments and logging clean up 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3693 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee 2009-07-06 18:15:01 +00:00
parent 45771c8614
commit c44dabfe8b
5 changed files with 73 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
Source/Core/Core/Src/HW/DSP.cpp
View File

@ -16,10 +16,13 @@
// http://code.google.com/p/dolphin-emu/
// AID / AUDIO_DMA controls pushing audio out to the SRC and then the speakers.
// The audio DMA pushes audio through a small FIFO 32 bytes at a time, as needed.
// The audio DMA pushes audio through a small FIFO 32 bytes at a time, as
// needed.
// The SRC behind the fifo eats stereo 16-bit data at a sample rate of 32khz,
// that is, 4 bytes at 32 khz, which is 32 bytes at 4 khz. We thereforce schedule an
// event that runs at 4khz, that eats audio from the fifo. Thus, we have homebrew audio.
// that is, 4 bytes at 32 khz, which is 32 bytes at 4 khz. We thereforce
// schedule an event that runs at 4khz, that eats audio from the fifo. Thus, we
// have homebrew audio.
// The AID interrupt is set when the fifo STARTS a transfer. It latches address
// and count into internal registers and starts copying. This means that the
@ -236,9 +239,8 @@ void Read16(u16& _uReturnValue, const u32 _iAddress)
}
switch (_iAddress & 0xFFFF)
{
// ==================================================================================
// AI_REGS 0x5000+
// ==================================================================================
case DSP_MAIL_TO_DSP_HI:
_uReturnValue = dsp_plugin->DSP_ReadMailboxHigh(true);
return;
@ -260,9 +262,7 @@ void Read16(u16& _uReturnValue, const u32 _iAddress)
(dsp_plugin->DSP_ReadControlRegister() & DSP_CONTROL_MASK);
return;
// ==================================================================================
// AR_REGS 0x501x+
// ==================================================================================
case 0x5012:
_uReturnValue = g_AR_MODE;
return;
@ -282,11 +282,10 @@ void Read16(u16& _uReturnValue, const u32 _iAddress)
case AR_DMA_CNT_H: _uReturnValue = g_arDMA.Cnt.Hex >> 16; return;
case AR_DMA_CNT_L: _uReturnValue = g_arDMA.Cnt.Hex & 0xFFFF; return;
// ==================================================================================
// DMA_REGS 0x5030+
// ==================================================================================
case AUDIO_DMA_BYTES_LEFT:
// Hmm. Would be stupid to ask for bytes left. Assume it wants blocks left.
// Hmm. Would be stupid to ask for bytes left. Assume it wants
// blocks left.
_uReturnValue = g_audioDMA.BlocksLeft;
return;
@ -320,10 +319,8 @@ void Write16(const u16 _Value, const u32 _Address)
switch(_Address & 0xFFFF)
{
// ==================================================================================
// DSP Regs 0x5000+
// ==================================================================================
// DSP Regs 0x5000+
case DSP_MAIL_TO_DSP_HI:
dsp_plugin->DSP_WriteMailboxHigh(true, _Value);
break;
@ -340,9 +337,7 @@ void Write16(const u16 _Value, const u32 _Address)
_dbg_assert_msg_(DSPINTERFACE, 0, "W16: DSP_MAIL_FROM_DSP_LO");
break;
// ==================================================================================
// Control Register
// ==================================================================================
case DSP_CONTROL:
{
UDSPControl tmpControl;
@ -380,11 +375,8 @@ void Write16(const u16 _Value, const u32 _Address)
}
break;
// ==================================================================================
// AR_REGS 0x501x+
// DMA back and forth between ARAM and RAM
// ==================================================================================
case 0x5012:
g_AR_MODE = _Value;
break;
@ -418,10 +410,8 @@ void Write16(const u16 _Value, const u32 _Address)
Update_ARAM_DMA();
break;
// ==================================================================================
// Audio DMA_REGS 0x5030+
// This is the DMA that goes straight out the speaker.
// ==================================================================================
case AUDIO_DMA_START_HI:
g_audioDMA.SourceAddress = (g_audioDMA.SourceAddress & 0xFFFF) | (_Value<<16);
break;
@ -459,25 +449,27 @@ void Write16(const u16 _Value, const u32 _Address)
void UpdateAudioDMA()
{
if (g_audioDMA.AudioDMAControl.Enabled && g_audioDMA.BlocksLeft) {
// Read audio at g_audioDMA.ReadAddress in RAM and push onto an external audio fifo in the emulator,
// to be mixed with the disc streaming output. If that audio queue fills up, we delay the emulator.
// Read audio at g_audioDMA.ReadAddress in RAM and push onto an
// external audio fifo in the emulator, to be mixed with the disc
// streaming output. If that audio queue fills up, we delay the
// emulator.
// TO RESTORE OLD BEHAVIOUR, COMMENT OUT THIS LINE
dsp_plugin->DSP_SendAIBuffer(g_audioDMA.ReadAddress, AudioInterface::GetDSPSampleRate());
g_audioDMA.ReadAddress += 32;
g_audioDMA.BlocksLeft--;
if (!g_audioDMA.BlocksLeft) {
// No need to turn off the DMA - we can only get here if we had blocks left when we
// entered this function, and no longer have any.
// Latch new parameters
// No need to turn off the DMA - we can only get here if we had
// blocks left when we entered this function, and no longer have
// any. Latch new parameters
g_audioDMA.BlocksLeft = g_audioDMA.AudioDMAControl.NumBlocks;
g_audioDMA.ReadAddress = g_audioDMA.SourceAddress;
// DEBUG_LOG(DSPLLE, "ADMA read addresses: %08x", g_audioDMA.ReadAddress);
GenerateDSPInterrupt(DSP::INT_AID);
}
} else {
// Send silence. Yeah, it's a bit of a waste to sample rate convert silence.
// or hm. Maybe we shouldn't do this :)
// Send silence. Yeah, it's a bit of a waste to sample rate convert
// silence. or hm. Maybe we shouldn't do this :)
// dsp->DSP_SendAIBuffer(0, AudioInterface::GetDSPSampleRate());
}
}
@ -504,10 +496,8 @@ void Write32(const u32 _iValue, const u32 _iAddress)
switch (_iAddress & 0xFFFF)
{
// ==================================================================================
// AR_REGS - i dont know why they are accessed 32 bit too ...
// ==================================================================================
// AR_REGS - i dont know why they are accessed 32 bit too ...
case AR_DMA_MMADDR_H:
g_arDMA.MMAddr = _iValue;
break;
@ -528,9 +518,8 @@ void Write32(const u32 _iValue, const u32 _iAddress)
}
}
// __________________________________________________________________________________________________
// UpdateInterrupts
//
void UpdateInterrupts()
{
if ((g_dspState.DSPControl.AID & g_dspState.DSPControl.AID_mask) ||
@ -613,21 +602,21 @@ void Update_ARAM_DMA()
GenerateDSPInterrupt(INT_ARAM);
}
// =============================================================
// This is how it works: The game has written sound to RAM, the DSP will read it with
// this function. SamplePos in the plugin is double the value given here because it
// works on a nibble level. In Wii addresses can eather be for MEM1 or MEM2, when it wants
// to read from MEM2 it adds 0x2000000 (in nibble terms) to get up to the MEM2 hardware
// address. But in our case we use a second pointer and adjust the value down to 0x00...
// -------------------
// This is how it works: The game has written sound to RAM, the DSP will read
// it with this function. SamplePos in the plugin is double the value given
// here because it works on a nibble level. In Wii addresses can eather be for
// MEM1 or MEM2, when it wants to read from MEM2 it adds 0x2000000 (in nibble
// terms) to get up to the MEM2 hardware address. But in our case we use a
// second pointer and adjust the value down to 0x00...
u8 ReadARAM(u32 _iAddress)
{
//LOGV(DSPINTERFACE, 0, "ARAM (r) 0x%08x", _iAddress);
//DEBUG_LOG(DSPINTERFACE, 0, "ARAM (r) 0x%08x", _iAddress);
// _dbg_assert_(DSPINTERFACE,(_iAddress) < ARAM_SIZE);
if (SConfig::GetInstance().m_LocalCoreStartupParameter.bWii)
{
//LOGV(DSPINTERFACE, 0, "ARAM (r) 0x%08x 0x%08x 0x%08x", WII_MASK, _iAddress, (_iAddress & WII_MASK));
//DEBUG_LOG(DSPINTERFACE, 0, "ARAM (r) 0x%08x 0x%08x 0x%08x", WII_MASK, _iAddress, (_iAddress & WII_MASK));
// Does this make any sense?
if (_iAddress > WII_MASK)
@ -649,7 +638,7 @@ void WriteARAM(u8 value, u32 _uAddress)
{
if (SConfig::GetInstance().m_LocalCoreStartupParameter.bWii)
{
//LOGV(DSPINTERFACE, 0, "ARAM (w) 0x%08x 0x%08x 0x%08x", WII_MASK, _iAddress, (_iAddress & WII_MASK));
//DEBUG_LOG(DSPINTERFACE, 0, "ARAM (w) 0x%08x 0x%08x 0x%08x", WII_MASK, _iAddress, (_iAddress & WII_MASK));
// Does this make any sense?
if (_uAddress > WII_MASK)
@ -686,4 +675,4 @@ void WriteARAM(u8 _iValue, u32 _iAddress)
}*/
} // end of namespace DSP
// ===================

18
Source/Core/DSPCore/Src/DSPAccelerator.cpp
View File

@ -106,12 +106,12 @@ u16 dsp_read_accelerator()
u16 val;
// let's do the "hardware" decode
// DSP_FORMAT is interesting - the Zelda ucode seems to indicate that the bottom
// two bits specify the "read size" and the address multiplier.
// The bits above that may be things like sign extention and do/do not use ADPCM.
// It also remains to be figured out whether there's a difference between the usual
// accelerator "read address" and 0xd3.
// let's do the "hardware" decode DSP_FORMAT is interesting - the Zelda
// ucode seems to indicate that the bottom two bits specify the "read size"
// and the address multiplier. The bits above that may be things like sign
// extention and do/do not use ADPCM. It also remains to be figured out
// whether there's a difference between the usual accelerator "read
// address" and 0xd3.
switch (gdsp_ifx_regs[DSP_FORMAT])
{
case 0x00: // ADPCM audio
@ -146,9 +146,9 @@ u16 dsp_read_accelerator()
DSPCore_SetException(EXP_4);
DSPCore_SetException(EXP_ACCOV);
// Somehow, YN1 and YN2 must be initialized with their "loop" values, so yeah,
// it seems likely that we should raise an exception to let the DSP program do that,
// at least if DSP_FORMAT == 0x0A.
// Somehow, YN1 and YN2 must be initialized with their "loop" values,
// so yeah, it seems likely that we should raise an exception to let
// the DSP program do that, at least if DSP_FORMAT == 0x0A.
}
gdsp_ifx_regs[DSP_ACCAH] = Address >> 16;

32
Source/Core/DSPCore/Src/DSPCore.cpp
View File

@ -153,51 +153,59 @@ void DSPCore_SetException(u8 level)
g_dsp.exceptions |= 1 << level;
}
// Comming from the CPU
void DSPCore_CheckExternalInterrupt()
{
// check if there is an external interrupt
if (g_dsp.cr & CR_EXTERNAL_INT && !g_dsp.exception_in_progress_hack)
{
#ifdef DEBUG_EXP
NOTICE_LOG(DSPLLE, "trying External interupt fired");
NOTICE_LOG(DSPLLE, "Firing external interrupt");
#endif
if (dsp_SR_is_flag_set(SR_EXT_INT_ENABLE))
{
#ifdef DEBUG_EXP
NOTICE_LOG(DSPLLE, "External interupt fired");
#endif
// level 7 is the interrupt exception
// Signal the SPU about new mail
DSPCore_SetException(EXP_INT);
g_dsp.cr &= ~CR_EXTERNAL_INT;
} else {
#ifdef DEBUG_EXP
ERROR_LOG(DSPLLE, "External interupt firing failed");
#endif
}
}
}
void DSPCore_CheckExceptions()
{
// it's unclear what to do when there are two exceptions are the same time
// but for sure they should not be called together therefore the
// g_dsp.exception_in_progress_hack
if (g_dsp.exceptions != 0 && !g_dsp.exception_in_progress_hack) {
#ifdef DEBUG_EXP
NOTICE_LOG(DSPLLE, "trying exception %d fired", g_dsp.exceptions);
NOTICE_LOG(DSPLLE, "Firing exception %d", g_dsp.exceptions);
#endif
// check exceptions
// check exceptions should it be 0..7 or 7..0?
for (int i = 0; i < 8; i++) {
// Seems 7 must pass or zelda dies
// Seems exp int is not masked by sr_int_enable
if (dsp_SR_is_flag_set(SR_INT_ENABLE) || i == EXP_INT) {
if (g_dsp.exceptions & (1 << i)) {
_assert_msg_(MASTER_LOG, !g_dsp.exception_in_progress_hack, "assert while exception");
// store pc and sr until RTI
dsp_reg_store_stack(DSP_STACK_C, g_dsp.pc);
dsp_reg_store_stack(DSP_STACK_D, g_dsp.r[DSP_REG_SR]);
g_dsp.pc = i * 2;
g_dsp.pc = i * 2;
g_dsp.exceptions &= ~(1 << i);
#ifdef DEBUG_EXP
NOTICE_LOG(DSPLLE, "exception %d fired");
#endif
g_dsp.exception_in_progress_hack = true;
break;
}
} else {
#ifdef DEBUG_EXP
ERROR_LOG(DSPLLE, "Firing exception %d failed");
#endif
}
}
}

17
Source/Core/DSPCore/Src/DSPHWInterface.cpp
View File

@ -90,14 +90,9 @@ void gdsp_mbox_write_l(u8 mbx, u16 val)
#ifdef DEBUG_EXP
if (mbx == GDSP_MBOX_DSP)
{
NOTICE_LOG(DSPLLE, " - DSP writes mail to mbx low %i: 0x%08x (pc=0x%04x)", mbx, gdsp_mbox_peek(GDSP_MBOX_DSP), g_dsp.pc);
//DSPHost_InterruptRequest();
//DSPCore_SetException(EXP_INT);
NOTICE_LOG(DSPLLE, "DSP(WM) B:%i M:0x%08x (pc=0x%04x)", mbx, gdsp_mbox_peek(GDSP_MBOX_DSP), g_dsp.pc);
} else {
NOTICE_LOG(DSPLLE, " - CPU writes mail to mbx low %i: 0x%08x (pc=0x%04x)", mbx, gdsp_mbox_peek(GDSP_MBOX_CPU), g_dsp.pc);
// DSPHost_InterruptRequest();
// DSPCore_SetException(EXP_INT);
NOTICE_LOG(DSPLLE, "CPU(WM) B:%i M:0x%08x (pc=0x%04x)", mbx, gdsp_mbox_peek(GDSP_MBOX_DSP), g_dsp.pc);
}
#endif
}
@ -124,13 +119,9 @@ u16 gdsp_mbox_read_l(u8 mbx)
#ifdef DEBUG_EXP
if (mbx == GDSP_MBOX_DSP)
{
NOTICE_LOG(DSPLLE, "- DSP reads mail from mbx %i: %08x (pc=0x%04x)", mbx, gdsp_mbox_peek(mbx), g_dsp.pc);
// DSPCore_SetException(EXP_INT);
// DSPHost_InterruptRequest();
NOTICE_LOG(DSPLLE, "DSP(RM) B:%i M:0x%08x (pc=0x%04x)", mbx, gdsp_mbox_peek(GDSP_MBOX_DSP), g_dsp.pc);
} else {
NOTICE_LOG(DSPLLE, "- CPU reads mail from mbx %i: %08x (pc=0x%04x)", mbx, gdsp_mbox_peek(mbx), g_dsp.pc);
// DSPCore_SetException(EXP_INT);
// DSPHost_InterruptRequest();
NOTICE_LOG(DSPLLE, "CPU(RM) B:%i M:0x%08x (pc=0x%04x)", mbx, gdsp_mbox_peek(GDSP_MBOX_DSP), g_dsp.pc);
}
#endif

12
Source/Core/DSPCore/Src/DSPInterpreter.cpp
View File

@ -80,6 +80,7 @@ void HandleLoop()
const u16 rCallAddress = g_dsp.r[DSP_REG_ST0];
const u16 rLoopAddress = g_dsp.r[DSP_REG_ST2];
if (g_dsp.pc == (rLoopAddress + opSize[rLoopAddress]))
{
rLoopCounter--;
@ -148,7 +149,8 @@ void Run()
// This one has basic idle skipping, and checks breakpoints.
int RunCyclesDebug(int cycles)
{
// First, let's run a few cycles with no idle skipping so that things can progress a bit.
// First, let's run a few cycles with no idle skipping so that things can
// progress a bit.
for (int i = 0; i < 8; i++)
{
if (g_dsp.cr & CR_HALT)
@ -231,7 +233,8 @@ int RunCycles(int cycles)
cycles--;
}
// Next, let's run a few cycles with idle skipping, so that we can skip idle loops.
// Next, let's run a few cycles with idle skipping, so that we can skip
// idle loops.
for (int i = 0; i < 8; i++)
{
if (g_dsp.cr & CR_HALT)
@ -242,8 +245,9 @@ int RunCycles(int cycles)
cycles--;
}
// Now, run the rest of the block without idle skipping. It might trip into a
// idle loop and if so we waste some time here. Might be beneficial to slice even further.
// Now, run the rest of the block without idle skipping. It might trip into
// a idle loop and if so we waste some time here. Might be beneficial to
// slice even further.
while (cycles > 0)
{
Step();