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Updated the noise table and DMC table with the new values from nesdevwiki

This commit is contained in:
qeed 2009-06-11 17:55:06 +00:00
parent d31f203d25
commit 27a67f5886
1 changed files with 40 additions and 20 deletions
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58
src/sound.cpp
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@ -92,11 +92,18 @@ static const uint8 lengthtable[0x20]=
10,254, 20, 2, 40, 4, 80, 6, 160, 8, 60, 10, 14, 12, 26, 14,
12, 16, 24, 18, 48, 20, 96, 22, 192, 24, 72, 26, 16, 28, 32, 30
};
static const uint32 NoiseFreqTable[0x10]=
static const uint32 NoiseFreqTableNTSC[0x10] =
{
2,4,8,0x10,0x20,0x30,0x40,0x50,0x65,0x7f,0xbe,0xfe,0x17d,0x1fc,0x3f9,0x7f2
4, 8, 16, 32, 64, 96, 128, 160, 202,
254, 380, 508, 762, 1016, 2034, 4068
};
static const uint32 NoiseFreqTablePAL[0x10] =
{
4, 7, 14, 30, 60, 88, 118, 148, 188,
236, 354, 472, 708, 944, 1890, 3778
};
static const uint32 *NoiseFreqTable;
static const uint32 NTSCDMCTable[0x10]=
{
@ -104,10 +111,16 @@ static const uint32 NTSCDMCTable[0x10]=
190,160,142,128,106, 84 ,72,54
};
/* Previous values for PAL DMC was value - 1,
* I am not certain if this is if FCEU handled
* PAL differently or not, the NTSC values are right,
* so I am assuming that the current value is handled
* the same way NTSC is handled. */
static const uint32 PALDMCTable[0x10]=
{
397, 353, 315, 297, 265, 235, 209, 198,
176, 148, 131, 118, 98, 78, 66, 50,
398, 354, 316, 298, 276, 236, 210, 198,
176, 148, 132, 118, 98, 78, 66, 50
};
// $4010 - Frequency
@ -1063,25 +1076,32 @@ due to that whole MegaMan 2 Game Genie thing.
void FCEUSND_Reset(void)
{
int x;
int x;
IRQFrameMode=0x0;
fhcnt=fhinc;
fcnt=0;
fhcnt=fhinc;
fcnt=0;
nreg=1;
nreg=1;
for(x=0;x<2;x++)
if (PAL)
NoiseFreqTable = NoiseFreqTableNTSC;
else
NoiseFreqTable = NoiseFreqTablePAL;
for(x=0;x<2;x++)
{
wlcount[x]=2048;
if(nesincsize) // lq mode
sqacc[x]=((uint32)2048<<17)/nesincsize;
else
sqacc[x]=1;
sweepon[x]=0;
curfreq[x]=0;
wlcount[x]=2048;
if(nesincsize) // lq mode
sqacc[x]=((uint32)2048<<17)/nesincsize;
else
sqacc[x]=1;
sweepon[x]=0;
curfreq[x]=0;
}
wlcount[2]=1; //2048;
wlcount[3]=2048;
wlcount[2]=1; //2048;
wlcount[3]=2048;
DMCHaveDMA=DMCHaveSample=0;
SIRQStat=0x00;