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changed exception behavior a little bit

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@813 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
fires.gc
2008-10-09 20:17:10 +00:00
parent d4f8f0d3ae
commit 12d3810203
4 changed files with 128 additions and 43 deletions
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147
Source/Plugins/Plugin_DSP_LLE/Src/gdsp_interpreter.cpp
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@ -138,37 +138,10 @@ void gdsp_reset()
}
uint8 gdsp_exceptions = 0;
void gdsp_generate_exception(uint8 level)
{
_dbg_assert_msg_(!g_dsp.exception_in_progress_hack, "assert while exception");
dsp_reg_store_stack(DSP_STACK_C, g_dsp.pc);
dsp_reg_store_stack(DSP_STACK_D, g_dsp.r[R_SR]);
g_dsp.pc = level * 2;
g_dsp.exception_in_progress_hack = true;
}
uint32 gdsp_exception_ready = 0;
void gdsp_exception(uint8 level)
{
switch (level & 0x7)
{
case 0x5: // ACCA > ACCH exception
if (g_dsp.r[R_SR] & 0x200)
{
gdsp_exception_ready = level;
}
break;
default:
break;
}
gdsp_exceptions |= 1 << level;
}
@ -247,7 +220,7 @@ void gdsp_loop_step()
dsp_op[opc >> 12](opc);
}
void Hacks();
void gdsp_step()
{
g_dsp.step_counter++;
@ -286,15 +259,33 @@ void gdsp_step()
{
if (dsp_SR_is_flag_set(FLAG_ENABLE_INTERUPT) && (g_dsp.exception_in_progress_hack == false))
{
// level 7 is the interrupt exception
gdsp_generate_exception(7);
g_dsp.cr &= ~0x0002;
UpdateCachedCR();
}
// level 7 is the interrupt exception
gdsp_exception_ready = 7;
}
// check exceptions
if ((gdsp_exceptions > 0) && (!g_dsp.exception_in_progress_hack))
{
for (uint8 i=0; i<8; i++)
{
if (gdsp_exceptions & (1<<i))
{
_dbg_assert_msg_(!g_dsp.exception_in_progress_hack, "assert while exception");
dsp_reg_store_stack(DSP_STACK_C, g_dsp.pc);
dsp_reg_store_stack(DSP_STACK_D, g_dsp.r[R_SR]);
g_dsp.pc = i * 2;
gdsp_exceptions &= ~(1<<i);
g_dsp.exception_in_progress_hack = true;
break;
}
}
}
}
@ -340,3 +331,93 @@ void gdsp_stop()
gdsp_running = false;
}
///////////////////////////////////////////////////////////////////////////////
//
// From fires for fires :)
//
//
#include "disassemble.h"
#include "WaveFile.h"
#include "Mixer.h"
uint16 r30 = 0, r31 = 0;
void PanicAlert(const char* text, ...);
extern WaveFileWriter g_wave_writer;
extern uint16 dsp_swap16(uint16 x);
void Hacks()
{
// if (g_wave_writer.GetAudioSize() > 1024*1024*1)
/* if (g_dsp.pc == 0x165)
{
PanicAlert("Opcode_06");
}
if (g_dsp.pc == 0x43b)
{
PanicAlert("Opcode_14");
}
if (g_dsp.pc == 0xb37)
{
PanicAlert("Opcode_08");
}*/
/* if (g_dsp.pc == 0x1bc)
{
r30 = g_dsp.r[30];
r31 = g_dsp.r[31];
}
else if (g_dsp.pc == 0x384)
{
// if ((r30 == 0x1bc) && (r31 == 0xaff))
{
//PanicAlert("%x, %x", r30, r31);
const int numSamples = 0x280;
static short Buffer[numSamples];
uint16 bufferAddr = 0x280; //dsp_dmem_read(0xe44);
for (int i=0; i<numSamples; i++)
{
Buffer[i] = dsp_dmem_read(bufferAddr+i);
}
g_wave_writer.AddStereoSamples(Buffer, numSamples/2); // 2 channels
if (g_wave_writer.GetAudioSize() > 1024*1024*2)
{
//PanicAlert("%x", bufferAddr);
g_wave_writer.Stop();
exit(1);
}
}
} */
if (g_dsp.pc == 0x468)
{
int numSamples = g_dsp.r[25] / 2;
uint16 bufferAddr = g_dsp.r[27];
// PanicAlert("%x %x", bufferAddr, numSamples);
short samples[1024];
for (int i=0; i<numSamples; i++)
{
samples[i] = dsp_dmem_read(bufferAddr+i);
}
Mixer_PushSamples(samples, numSamples / 2, 32000); //sample_rate);
g_wave_writer.AddStereoSamples(samples, numSamples/2); // 2 channels
if (g_wave_writer.GetAudioSize() > 1024*1024*2)
{
//PanicAlert("%x", bufferAddr);
g_wave_writer.Stop();
exit(1);
}
}
}