【模拟器代码问题】模拟器如何通过代码控制Rom的背景音乐

独孤残云 · 发表于 2009-11-2 22:45:57

求助：模拟器源码中通过哪段代码控制Rom背景音乐的播放？
PS：看过一些模拟器的源码，大概都分为APU、PPU、NES那样几个版块。请大侠告知是哪个模块。感激不尽~~

慵懒悠悠 · 发表于 2009-11-2 22:57:37

看了下VirtualNes的源码，是APU那部分，全称应该是Audio Process Unit

独孤残云 · 发表于 2009-11-8 09:56:34

能否再详细一些呢？本人比较熟悉上层的编程思想，但对于NES的底层算法机制基本是彻头彻尾的外行。
楼上的大侠可否帮我准确定位一下，是哪个.cpp文件中的哪个函数，感激不尽~~
这里有相应的模拟器源码，就当送给大侠了~~
http://kenkao.qupan.com/5096520.html

krizal · 发表于 2009-11-8 11:31:10

原帖由 独孤残云 于 2009-11-8 09:56 发表
+ u; }! s* c" {& ^. F+ {2 H能否再详细一些呢？本人比较熟悉上层的编程思想，但对于NES的底层算法机制基本是彻头彻尾的外行。
, S$ _# q5 Z( ~楼上的大侠可否帮我准确定位一下，是哪个.cpp文件中的哪个函数，感激不尽~~
( u6 m* N. n" J, [, y这里有相应的模拟器源码，就当送给大侠 ...

聲音部分(Audoi Process Unit = APU):
.\NES\APU.cpp
.\NES\APU.h

影像處理部份(Picture Processing Unit = PPU):
.\NES\PPU.cpp
.\NES\PPU.h

如果原碼用C跟ASM混搭也不錯

湘西小人物 · 发表于 2009-11-8 13:03:26

楼上是高手哈哈

独孤残云 · 发表于 2009-11-8 14:38:21

可以的话，希望可以得到krizal团长大人或者哪位大侠的详细赐教，就是指Apu模块下这些函数的具体含义和作用。我对这些NES机制的算法很感兴趣。
感激不尽~~

独孤残云 · 发表于 2009-11-8 14:47:50

这是我手中源码Apu.cpp的内容，敬请赐教：
（由于很多专用术语和算法机理都不明白，所以看不大懂……）
//////////////////////////////////////////////////////////////////////////
//                                                                   //
//    NES APU core                                                 //
//                                                          Norix    //
//                                              written    2002/06/27 //
//                                              last modify ----/--/-- //
//////////////////////////////////////////////////////////////////////////
#include "DebugOut.h"
#include "App.h"
#include "Config.h"

#include "nes.h"
#include "mmu.h"
#include "cpu.h"
#include "ppu.h"
#include "rom.h"
#include "apu.h"

// Volume adjust
// Internal sounds
#define RECTANGLE_VOL (0x0F0)
#define TRIANGLE_VOL (0x130)
#define NOISE_VOL (0x0C0)
#define DPCM_VOL (0x0F0)
// Extra sounds
#define VRC6_VOL (0x0F0)
#define VRC7_VOL (0x130)
#define FDS_VOL (0x0F0)
#define MMC5_VOL (0x0F0)
#define N106_VOL (0x088)
#define FME7_VOL (0x130)

APU::APU( NES* parent )
{
exsound_select = 0;

nes = parent;
internal.SetParent( parent );

last_data = last_diff = 0;

ZEROMEMORY( m_SoundBuffer, sizeof(m_SoundBuffer) );

ZEROMEMORY( lowpass_filter, sizeof(lowpass_filter) );
ZEROMEMORY( &queue, sizeof(queue) );
ZEROMEMORY( &exqueue, sizeof(exqueue) );

for( INT i = 0; i < 16; i++ ) {
m_bMute = TRUE;7 Z% B, k* n  L% @/ P
}4 o; p. k0 I0 n& f+ f
}8 }) o( H3 |+ d; c* S, B! O
  s. `" d6 r6 [* U" B7 F+ c
APU::~APU()
: f5 _6 H+ F  t5 v' }( H3 r{+ @' L5 P2 w" V' `5 S3 i6 c; j
}! ?& P7 B% L5 R4 K0 E

( c8 r, S( _6 G7 r7 Avoid APU::SetQueue( INT writetime, WORD addr, BYTE data )3 m# U' s$ c) M4 e% d1 f
{
" t' V3 m: L3 c' X. r7 r" y6 b queue.data[queue.wrptr].time = writetime;& a0 f. S# `3 r# H  m. P
queue.data[queue.wrptr].addr = addr;
6 I2 u. i# g' a0 p: r queue.data[queue.wrptr].data = data;5 [$ s: @" X) f- U
queue.wrptr++;5 u. N. S  I% v% c# p1 @! o4 l5 w
queue.wrptr&=QUEUE_LENGTH-1;( ~' q/ ?0 e$ Y/ r, V: @3 q
if( queue.wrptr == queue.rdptr ) {1 p5 a9 p  ?' C- Q( `  W% w) i
DEBUGOUT( "queue overflow.\n" );
% R, a& U& ]! r+ B; A) P. G }  }  i0 g2 {" ^1 R# `' b, O
}
! n6 e2 D4 X  {) X3 A' {$ m5 x
0 q& }9 O2 X' aBOOL APU::GetQueue( INT writetime, QUEUEDATA& ret )$ M/ u2 h# u$ g7 |
{( z9 M" O9 L/ W) @, y" h2 d" C7 H* S
if( queue.wrptr == queue.rdptr ) {" W3 g5 U, h( _2 ~& U  Q" q# s/ `
return FALSE;
$ v: x! m  z) y1 {6 q7 i }0 b5 u' m; e0 G# K/ o! ]% @
if( queue.data[queue.rdptr].time <= writetime ) {2 K2 F. ]. y" ]! y# z
ret = queue.data[queue.rdptr];+ J* U" b' {- g
queue.rdptr++;1 Z  s& R8 a2 C, L- r- b/ V3 w
queue.rdptr&=QUEUE_LENGTH-1;
( d& {$ V: G: |, q: m return TRUE;/ V: {# f; r5 z& u8 s8 b1 U2 A/ ~# {
}
1 G: @7 z; _6 x8 N2 r. G return FALSE;5 G0 W3 K" u2 P& e8 ?( [% y
}
3 [9 b2 I  c& L6 I0 B1 v: J% R8 W) L6 S4 n# c' |( c
void APU::SetExQueue( INT writetime, WORD addr, BYTE data )1 _2 \1 `1 ^: K3 Y5 v  N' t
{; d3 N* G5 z' e6 }2 {
exqueue.data[exqueue.wrptr].time = writetime;  e% q1 ^% ^& [4 S
exqueue.data[exqueue.wrptr].addr = addr;
7 h) b; ?8 V2 O# G& } exqueue.data[exqueue.wrptr].data = data;* P& v: M/ O3 p! \5 u; i
exqueue.wrptr++;
: a+ a, G2 T3 `, U8 w# h exqueue.wrptr&=QUEUE_LENGTH-1;, w! a6 h' Z( Q1 i
if( exqueue.wrptr == exqueue.rdptr ) {2 ?0 t0 O8 w5 Y" x' H
DEBUGOUT( "exqueue overflow.\n" );
3 n! f2 m* q1 f  t$ A0 R }
- a0 @1 F) k4 |( X6 d}9 B* R/ O8 X% w. a

4 F& K3 ^' F* b  t! p9 Z! a2 [7 vBOOL APU::GetExQueue( INT writetime, QUEUEDATA& ret )' \9 g$ h( Q: }+ k1 w1 c
{
/ n7 u% d! s. i2 ? if( exqueue.wrptr == exqueue.rdptr ) {
. b$ S) R% j! I9 @ return FALSE;
- T+ ^; g+ C, z) K3 N# S1 r }
: V  `7 h& @, ]9 ~ if( exqueue.data[exqueue.rdptr].time <= writetime ) {% d, J7 `1 n3 ~5 d
ret = exqueue.data[exqueue.rdptr];
$ z- l( W% p$ [ exqueue.rdptr++;
! o  R8 y6 k6 B9 n0 }* r2 @ exqueue.rdptr&=QUEUE_LENGTH-1;
3 Y' V( g% `# M2 ^) g  I2 D: ] return TRUE;
& `! M. C( F0 U. c: W }
3 {7 H! }. R8 z! |/ I return FALSE;
. Z# r) [6 m+ |8 i" k; c: ?}1 H: U3 @, N. S8 `# X6 ?
, ^; V4 ~3 o& G8 r8 m
void APU::QueueClear()
3 q" z2 t) e1 q, f: b) h2 m{8 ]  K* L+ Z# L/ v5 a; {; `* t, j. k( L
ZEROMEMORY( &queue, sizeof(queue) );
+ C3 G  Q$ d' Y6 b0 ~7 ?0 L# z& Y ZEROMEMORY( &exqueue, sizeof(exqueue) );; A8 A4 K1 y' _" Y5 k$ C
}
$ a' Z; {0 E1 V# y; p+ ]( u: G
( l$ j- O- H! m. e* xvoid APU::QueueFlush()
$ C; l7 m8 e: N+ w6 X. h+ K, n' z) m{, n6 A8 T0 m. }. e. c5 C8 _
while( queue.wrptr != queue.rdptr ) {; n* o8 G& z% y2 `1 `9 F' e
WriteProcess( queue.data[queue.rdptr].addr, queue.data[queue.rdptr].data );
# X' w% N' Z& y1 {8 g# k queue.rdptr++;& x8 D) R, {* m! I7 M# x7 P: N" I% g0 f
queue.rdptr&=QUEUE_LENGTH-1;
+ f1 t5 |: ?+ H5 X' z' o9 o }
( y' `4 P! b* U& c; v0 R: y- j$ C  A& K8 A: t+ j) G) V! a
while( exqueue.wrptr != exqueue.rdptr ) {+ `$ v; E5 D" U7 V+ H1 y$ i. I& N
WriteExProcess( exqueue.data[exqueue.rdptr].addr, exqueue.data[exqueue.rdptr].data );
( G: i+ o& r+ v( L0 j* I1 O! [ exqueue.rdptr++;: M$ r5 _, {$ h$ y0 h5 X
exqueue.rdptr&=QUEUE_LENGTH-1;9 Z6 R- i' L+ f: l. }. r: \: H6 U$ I
}
4 U  ~5 h6 p4 T/ t. M. t}
9 k; c6 @+ S  W: C6 v9 A" T# X$ o) k, S
void APU::SoundSetup()
5 s9 _# U% k2 [" D9 i. _2 S; ~{
( W6 H! a" e5 d# f: x- R FLOAT fClock = nes->nescfg->CpuClock;
; j9 b1 [. I9 G+ H0 I. U0 ^7 r INT nRate = (INT)Config.sound.nRate;3 Q( R' f. E$ e, d4 j* E  q
internal.Setup( fClock, nRate );/ x# `- K: r. X0 K1 b) ^' H
vrc6.Setup( fClock, nRate );
+ V& q( f  @5 `% } vrc7.Setup( fClock, nRate );
2 A/ D" B' L, E& h) M mmc5.Setup( fClock, nRate );
6 ~2 E) _% o9 O8 y: i fds.Setup ( fClock, nRate );
. \+ _) c1 v/ C- c/ P; e3 x2 U n106.Setup( fClock, nRate );8 Z4 ~! @! [5 f- \( {
fme7.Setup( fClock, nRate );) |7 r# [- ^+ B; m2 X& M
}
1 M) [  S3 k) p8 l6 _& l; r$ c, j! D% _& u) E. N& W
void APU::Reset()* l+ [5 p# z9 l
{0 ], M1 J. u% B, U& r* ~8 }
ZEROMEMORY( &queue, sizeof(queue) );
0 o# f0 B2 {% ^" l3 P ZEROMEMORY( &exqueue, sizeof(exqueue) );( c1 j0 W  a9 B/ a' H7 N- l6 E

& H- Q; K1 O, R! P elapsed_time = 0;
, J1 ^* i/ v1 v3 o& f8 |3 Z
" K7 ~; `0 F. L% B0 `1 y) C4 O. x FLOAT fClock = nes->nescfg->CpuClock;
& N* k7 ?4 Z# \7 Y INT nRate = (INT)Config.sound.nRate;3 F0 c! b+ m7 Y4 I- ^+ l
internal.Reset( fClock, nRate );" W% E! b. ~' n
vrc6.Reset( fClock, nRate );
5 u6 N& W1 f0 b5 b vrc7.Reset( fClock, nRate );( q6 L" V, Z8 N3 H
mmc5.Reset( fClock, nRate );- P: }4 F, T6 }* B
fds.Reset ( fClock, nRate );
8 Y; X! ~7 w9 \4 g( C: W6 @ n106.Reset( fClock, nRate );
% K& }3 {; ?. @: z( Q8 F% s fme7.Reset( fClock, nRate );
  V0 ^9 |8 U7 C) `6 C% D6 ]. B& a$ S' O6 [/ j" R
SoundSetup();
  g* n2 F+ a" C# p+ ^}- d" g1 v) h7 Y0 _& ]

0 M8 o  T; ^" ^4 fvoid APU::SelectExSound( BYTE data )' Y5 b1 ^# C. H- R
{+ m/ m- L2 i- x+ e8 J7 w* I
exsound_select = data;1 l$ ^$ j4 z7 h" X
}
" j. N0 x. J7 Y* X- c+ `% L
# R- H5 C2 Y. e* f# r( W; G+ W6 uBYTE APU::Read( WORD addr )7 l! T" \% d) G1 T% R
{0 `! p4 ?8 f) w
return internal.SyncRead( addr );
) W6 A5 A" ^7 `, J, e}
, F% w+ w! l0 k9 R2 L, V
void APU::Write( WORD addr, BYTE data ). A: I+ A6 f5 L9 _* A% t1 A# W
{+ f) F/ e! H4 z. y2 P0 V8 Q1 P% ?
// $4018偼VirtuaNES屌桳億乕僩5 f& [; n& d4 d; G
if( addr >= 0x4000 && addr <= 0x401F ) {6 b( G' o0 z+ H
internal.SyncWrite( addr, data );
% i9 I, s; |' S% ? SetQueue( nes->cpu->GetTotalCycles(), addr, data );& N* A% ]3 @: H4 A: Z- u; ?- ^
}1 `( `6 R1 H( C3 N( c1 j: l
}
" y3 Z2 g. s  }
! w4 l2 p2 o, e+ B  T. _$ b; wBYTE APU::ExRead( WORD addr )
; X# V% n  q. K8 b5 R2 z7 B{. `+ l/ |/ D# X8 f
BYTE data = 0;1 R  q' n" ?% y# }
$ ^: }2 q! F: ~" F) _
if( exsound_select & 0x10 ) {$ @  f" l! _* t- K! S3 E! n- k# t  Y
if( addr == 0x4800 ) {; `4 G$ m9 _  e9 ~
SetExQueue( nes->cpu->GetTotalCycles(), 0, 0 );: Y2 Q$ D: [+ f0 J! d6 ^5 }
}5 I' I; V/ k% M7 {0 s2 X
}9 C* p' s8 P/ A7 N# T; L+ H
if( exsound_select & 0x04 ) {
0 f% F  B6 |4 x5 \" Q: R6 k7 N if( addr >= 0x4040 && addr < 0x4100 ) {( g- T8 j% C9 }  J0 v+ ~! @
data = fds.SyncRead( addr );
3 b+ P& ], j$ @/ r }& c# B( ~1 n3 f5 B& T
}) R# @  n+ B! x0 o. Y5 ]6 G5 q0 y
if( exsound_select & 0x08 ) {/ U9 o. e2 u3 B7 ~8 ~) O. ~5 R
if( addr >= 0x5000 && addr <= 0x5015 ) {
6 c% k# l0 V" K  @+ G8 | data = mmc5.SyncRead( addr );
" K  _" N7 h2 A: W6 e) A! |; k2 L }8 K) S. h" D' h
}
& V4 m3 J9 x+ ?8 q: }% k, x' z$ I1 y$ I8 E1 e
return data;1 C. t+ t: Z" f4 b
}
/ h9 d- j: r2 R( B6 e4 V
$ Q! ?5 [: t0 c$ X1 ^& Qvoid APU::ExWrite( WORD addr, BYTE data )- b1 C5 B9 W  N0 _# ]
{  p/ f3 Y; c& m/ a' ]' K" A  b
SetExQueue( nes->cpu->GetTotalCycles(), addr, data );4 W( n# P' k( n; ^3 x; u

: W. \; e& [3 U/ G) M& Y9 G, G if( exsound_select & 0x04 ) {5 y3 H' h0 `, R! b! ]& h
if( addr >= 0x4040 && addr < 0x4100 ) {( d5 L5 r1 t5 [6 C# Y. z7 V0 b8 }
fds.SyncWrite( addr, data );
' g1 ]; l0 g. V* O! \. Q' s7 f2 E }
+ D$ ]: V7 y- ]0 | }# F$ x7 M$ V6 T9 b' g

$ I& N8 O2 ], o( Z2 S5 Y8 L if( exsound_select & 0x08 ) {7 `7 L0 D0 K  a* w/ T6 U& p4 g
if( addr >= 0x5000 && addr <= 0x5015 ) {+ I( @. f% L% [' g6 Z
mmc5.SyncWrite( addr, data );# d% t' _1 L% M+ E6 P$ n2 n
}& u/ }$ ^6 t2 L) f$ m" D2 M( H. R0 R; o' M
}0 F6 q( U2 Q& [
}+ `6 W& I" u* |2 T

3 ?1 f7 h; L, X# Nvoid APU::Sync(), l1 ^6 o4 k5 E1 N
{
1 w7 x1 j; @* z4 f5 |6 `6 K}7 F* [9 |, _  V* b7 A: a

( d, V$ h8 E- j5 |( j% q/ s" z. E: }void APU::SyncDPCM( INT cycles )
4 M$ B* L8 F! }0 A6 F% Y' t{
& j0 `* N) P6 | internal.Sync( cycles );
- u# {, [9 }# Y
/ o& w( i9 y9 K# O8 C if( exsound_select & 0x04 ) {) {. n; M7 J$ x
fds.Sync( cycles );6 K& ]( K6 T9 m( u/ d1 u7 Y& K0 [( ]
}
4 |" c/ q; \$ L5 G2 d if( exsound_select & 0x08 ) {
1 g- S3 ~- Q0 Z. [6 O3 h5 c3 g mmc5.Sync( cycles );5 q3 a* b/ C/ ~( H7 ^
}: M/ m% [. x& @  W
}
! k9 p5 m& Q4 o4 `
" T2 i  w: z. p2 x3 Yvoid APU::WriteProcess( WORD addr, BYTE data )
! L( o: M" ^/ l) c: ]" R{
! d$ a) {. p+ k$ Y- P+ B // $4018偼VirtuaNES屌桳億乕僩/ x3 Q, N( P8 o& U  ~* R' q
if( addr >= 0x4000 && addr <= 0x401F ) {) M: U) G0 p* G
internal.Write( addr, data );
# |0 W- I+ ?: K% u0 v, J0 n1 Z }2 t* d5 `$ `7 J4 `/ D
}
; S% U' m, @& B
9 u: ^1 r& A1 f% e8 d3 [void APU::WriteExProcess( WORD addr, BYTE data )2 _6 {9 ?0 x) v
{
+ E7 M1 E) ?. e: ~8 X6 p if( exsound_select & 0x01 ) {, G2 f! h' E6 N+ k  y) s$ C
vrc6.Write( addr, data );8 \6 s) t2 a7 ^. [( p- T
}. `7 ?; m3 B, k$ f* Q" z
if( exsound_select & 0x02 ) {. ?* m7 j9 L  ^4 |
vrc7.Write( addr, data );
( ?+ @6 w7 \" B7 i- s" f }
& v% r7 }4 |% i9 E- K. s8 V if( exsound_select & 0x04 ) {
- [; k2 [1 ~$ ]$ s) [ fds.Write( addr, data );1 i) T# ?9 d2 Q  t) K* j! T- `& O
}6 o2 y3 t( i' i1 @/ w
if( exsound_select & 0x08 ) {* G0 V! I; q4 q. d: w+ D
mmc5.Write( addr, data );% ~( F- H- L) u
}
, N- U: E5 z! f# R' @4 V if( exsound_select & 0x10 ) {
+ A; c  F2 f% R2 m# Q if( addr == 0x0000 ) {3 o3 X& @) Z# F/ h  B
BYTE dummy = n106.Read( addr );% s* W0 x4 v- n
} else {
$ ^* J* q  o$ \0 [ n106.Write( addr, data );
0 d0 g$ B6 x, @4 g( A' r }2 |( S2 s' p* h% _
}
9 i8 M% h1 @' I7 s if( exsound_select & 0x20 ) {
! r* v% u5 A8 l- p; f& u# I fme7.Write( addr, data );$ R) {8 R7 n  v7 g6 G! m
}* `' M! f  o  O( Q) g1 D" M
}% Z, s$ \( I7 n) N* p) X. B
" i9 s- x) @' f6 v
void APU::Process( LPBYTE lpBuffer, DWORD dwSize )
/ P- B, m/ T3 y/ l3 }; e{
* e: Y/ v( [0 v& O: a( cINT nBits = Config.sound.nBits;
5 t( k" U5 d5 ~4 c# PDWORD dwLength = dwSize / (nBits/8);
( r# X' x6 P* ?" m& ^3 oINT output;9 u2 y0 Y/ T$ N  V: w
QUEUEDATA q;! O) A7 x5 E* G' K: ]3 \" k) d
DWORD writetime;
; X* J* S$ q( E+ N3 O3 T( Z
7 p* ^, E# P+ {- Q) bLPSHORT pSoundBuf = m_SoundBuffer;
0 v+ U* F: m% }" y# {: _INT nCcount = 0;0 o5 _2 Z. m# z. {. D" m
1 ~9 ^5 M/ V: Y' b
INT nFilterType = Config.sound.nFilterType;
8 \" I0 F4 K7 U! v+ q; g& J$ l1 z3 Z# D
if( !Config.sound.bEnable ) {
" n- C8 T' P) }/ {8 C ::FillMemory( lpBuffer, dwSize, (BYTE)(Config.sound.nRate==8?128:0) );
& K9 G2 ^  q5 o return;- k9 i0 p( c( w- e5 V, o
}8 F' a/ g; b# B3 s# B
9 E( l- }0 Z7 F& f$ {/ k1 x
// Volume setup
. O9 Y5 q$ ]% { //  0:Master" E. \+ v- l& e  ?/ }! I8 t3 R4 z. R
//  1:Rectangle 1/ v8 t$ d4 ]0 g; }  p& q
//  2:Rectangle 2  @2 _" b' A& d6 t+ y
//  3:Triangle0 i$ z* [4 u7 S) M' d
//  4:Noise: n8 r% F9 c0 p% F+ G  U4 d* D/ R
//  5:DPCM
* s( s2 I, F+ H+ B$ b# |3 P! v //  6:VRC6$ c3 P0 E0 L- ?* X5 i9 e0 T6 U
//  7:VRC74 d( {. z0 e$ {0 ]$ W  P
//  8:FDS/ [9 ^! T5 M! x' g6 W- l) b
//  9:MMC5% {/ i$ S) _; x& E
// 10:N106  M; |6 q$ m  m" j7 U
// 11:FME7
3 v5 t) }' q. T/ S- b, M INT vol[24];9 |* L* b, G' Y) c
BOOL* bMute = m_bMute;
2 T, L( Y9 |- {' Y8 R  f8 E SHORT* nVolume = Config.sound.nVolume;
, ?1 y8 t" h" `$ I! i& _
; N! v5 |4 J: r, \& F INT nMasterVolume = bMute[0]?nVolume[0]:0;# i  u  R) v, I' O$ {6 q
: `6 v: P; P2 z" a5 \
// Internal' O8 y7 ]0 F, p" ?- N: D4 T
vol[ 0] = bMute[1]?(RECTANGLE_VOL*nVolume[1]*nMasterVolume)/(100*100):0;5 \9 U/ m. V# Q* i6 n) s+ \
vol[ 1] = bMute[2]?(RECTANGLE_VOL*nVolume[2]*nMasterVolume)/(100*100):0;3 R! C9 i. R: H/ {
vol[ 2] = bMute[3]?(TRIANGLE_VOL *nVolume[3]*nMasterVolume)/(100*100):0;& T) c4 h* |7 G  j1 l
vol[ 3] = bMute[4]?(NOISE_VOL *nVolume[4]*nMasterVolume)/(100*100):0;
$ K4 o3 c9 w  p vol[ 4] = bMute[5]?(DPCM_VOL    *nVolume[5]*nMasterVolume)/(100*100):0;; Z9 B! N0 e! a: @1 y

6 A' f; E. u/ e // VRC69 O' h  E) ?( g& `' q( k
vol[ 5] = bMute[6]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;
& L5 a2 b+ y2 s" K( u vol[ 6] = bMute[7]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;
5 N( N$ C! |3 F vol[ 7] = bMute[8]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;
$ t. x' A% n( k# G( j
2 I6 c3 O6 f* t- b // VRC7
5 J5 f+ {: }0 P# k  v0 W vol[ 8] = bMute[6]?(VRC7_VOL*nVolume[7]*nMasterVolume)/(100*100):0;; y  b5 w+ }% I3 x6 H
# T; p( b0 p% |
// FDS3 a0 n! T- X+ J  F& X
vol[ 9] = bMute[6]?(FDS_VOL*nVolume[8]*nMasterVolume)/(100*100):0;2 Z( L8 _' }- ^1 W9 ^6 G

6 i2 _+ {1 W5 p6 f // MMC5
/ N2 ~- }  O, ]0 ^ vol[10] = bMute[6]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;. o. G# n( c- f' h* S
vol[11] = bMute[7]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;
3 Y1 k) ~5 g5 z( O vol[12] = bMute[8]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;
" E7 @) o+ C9 b- r
' ^' \; p) x6 ]/ X1 S // N1066 Z" }3 J8 [! V8 E8 e4 j2 x
vol[13] = bMute[ 6]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;4 H& r$ H) k  t2 M3 C
vol[14] = bMute[ 7]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
& y8 I7 h: z6 l! ]! z vol[15] = bMute[ 8]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;7 F- \+ E' K2 [1 q1 ^! C
vol[16] = bMute[ 9]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
- |+ B, ]0 e( U/ ?$ N vol[17] = bMute[10]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;) {3 j* {6 W2 c: a
vol[18] = bMute[11]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
) E( D. b0 {7 P! } vol[19] = bMute[12]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;% t. m! o5 O. @$ i) I& I
vol[20] = bMute[13]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
; s! I! o6 P! \; v0 D: @+ Y
/ J$ L9 v5 J4 { // FME7# @+ a1 w: i; L0 s5 c+ Q7 ]) u# J
vol[21] = bMute[6]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;0 p6 ^6 [% v: E& S0 c2 p
vol[22] = bMute[7]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;4 z( F) L8 m% r2 `+ {9 p% R
vol[23] = bMute[8]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;
- v) e9 |2 H1 {; E- i! E; c
$ ^: h% c- y1 m5 z, l) Z// double cycle_rate = ((double)FRAME_CYCLES*60.0/12.0)/(double)Config.sound.nRate;5 j" D0 U  w! i  O8 |8 F
double cycle_rate = ((double)nes->nescfg->FrameCycles*60.0/12.0)/(double)Config.sound.nRate;
, H  O) p( N# N6 N1 @6 `* b1 W) D
// CPU僒僀僋儖悢偑儖乕僾偟偰偟傑偭偨帪偺懳嶔張棟/ x# c  Q" ?/ a/ x; x! \, D# b
if( elapsed_time > nes->cpu->GetTotalCycles() ) {
+ x4 d0 x. z/ X2 @) A QueueFlush();
, j5 T1 @$ p+ o6 x$ |: c }
7 `" j/ x9 T. i0 ]( Z
; R+ T. {' P9 g6 x while( dwLength-- ) {
9 Q2 j0 @% H& c" |  K writetime = (DWORD)elapsed_time;
3 m) E' P. }6 A' t9 G  K& D6 J
& _+ j' n; H: O% p while( GetQueue( writetime, q ) ) {
# v6 X9 T1 s, V5 \& B WriteProcess( q.addr, q.data );4 _8 b; U2 I" J4 F/ k0 @$ S
}
1 \9 o$ C/ M" f& }7 i0 ?- k8 f- U" E$ f0 Y1 S. ^7 E7 f
while( GetExQueue( writetime, q ) ) {
: b' x; i. E3 y+ M2 Q, ~ WriteExProcess( q.addr, q.data );
$ i3 k8 |1 \$ m; _% v# L8 B }' j! c7 h  r9 w  `) Q& h
, ?4 ]9 m$ p6 ~3 |/ d
// 0-4:internal 5-7:VRC6 8:VRC7 9:FDS 10-12:MMC5 13-20:N106 21-23:FME7
8 A9 s" o% m9 m% I* V output = 0;
0 d) ?1 _; o& @4 W! k output += internal.Process( 0 )*vol[0];
, W9 S9 J8 K: U! A- T6 U8 W6 J6 n$ i output += internal.Process( 1 )*vol[1];/ M' ?& _- o% ]5 F% h
output += internal.Process( 2 )*vol[2];
, {8 J+ `% J0 Y/ ]8 C output += internal.Process( 3 )*vol[3];  c* d5 Y6 I6 Y8 s
output += internal.Process( 4 )*vol[4];1 F, l! z- }5 w* L* g8 X

9 l2 d9 m' r! L2 ^8 z. Y if( exsound_select & 0x01 ) {
: j; b2 v' L% U- W8 _ output += vrc6.Process( 0 )*vol[5];* r2 O) a3 ?+ d, H0 @
output += vrc6.Process( 1 )*vol[6];  }, {/ }5 [0 ~1 l$ E
output += vrc6.Process( 2 )*vol[7];
, g5 G; _1 I0 M6 V' q }
9 D8 {  }2 T$ j- D  r8 M if( exsound_select & 0x02 ) {3 l% z) m+ F" ~. o/ F$ y! ~
output += vrc7.Process( 0 )*vol[8];
3 W5 S7 n+ H- M3 p% f" Y. c4 y, a }
+ j( J" Y5 e+ Z) @4 S0 ^' @. C if( exsound_select & 0x04 ) {
" j. k& w( [! v4 E! p$ y; F6 ^, f: I output += fds.Process( 0 )*vol[9];" z+ S3 t/ p, ~  r0 K4 A& K
}! j7 }  y2 v% f+ c0 k9 @
if( exsound_select & 0x08 ) {3 p$ [/ ]( L( e( W) Z( V) k$ y
output += mmc5.Process( 0 )*vol[10];
7 A4 y) G# k& x( K output += mmc5.Process( 1 )*vol[11];; n/ M& v5 ^$ H0 m9 H; Q4 f  V
output += mmc5.Process( 2 )*vol[12];4 F8 b8 A8 D5 ?3 r8 o  _* x( y
}
" w8 O  k  R$ K: l8 N  D if( exsound_select & 0x10 ) {( \. x( Z) |/ P0 M
output += n106.Process( 0 )*vol[13];
  Y8 n! e6 C  o output += n106.Process( 1 )*vol[14];) W& M. u& @. s+ k
output += n106.Process( 2 )*vol[15];% Z/ _9 @4 y1 ^: T
output += n106.Process( 3 )*vol[16];
6 K  M2 i( F& \. j, K2 A$ { output += n106.Process( 4 )*vol[17];
, I8 J! K7 Z* x6 q! w( e/ V output += n106.Process( 5 )*vol[18];- V4 b2 C3 K1 @
output += n106.Process( 6 )*vol[19];, H9 l! j" P4 |) {8 w# ~  w$ B
output += n106.Process( 7 )*vol[20];
6 R/ G% z& w7 Y' w* {$ ~ }$ b* _3 r7 ~/ o3 q/ V
if( exsound_select & 0x20 ) {
4 W& E2 J# }# V. r+ [ fme7.Process( 3 ); // Envelope & Noise9 }+ X7 d0 Q) i" h7 n% C, r
output += fme7.Process( 0 )*vol[21];
3 s; Z5 a& V% W output += fme7.Process( 1 )*vol[22];  `, Z4 ?! D- x$ \. e, m1 I
output += fme7.Process( 2 )*vol[23];
% R5 C6 [: e1 J' D& Y }- c0 @+ T! D0 A7 R; b7 o
# p) {, R: b7 v, n: |$ B' C% H/ B
output >>= 8;. h% ^6 e# a, h% W4 T

; r  s8 H5 |5 c5 L if( nFilterType == 1 ) {
# z1 Y. n% P2 n; D //儘乕僷僗僼傿儖僞乕TYPE 1(Simple)
* u9 \# J5 |% b. v  g! z output = (lowpass_filter[0]+output)/2;$ e' ?) ]. c( {. c3 \
lowpass_filter[0] = output;
6 b. Q4 I+ `' G# E& b } else if( nFilterType == 2 ) {6 i" s* J9 O% D" {# e
//儘乕僷僗僼傿儖僞乕TYPE 2(Weighted type 1)
0 q5 p7 ?8 Y2 ]3 v0 k output = (lowpass_filter[1]+lowpass_filter[0]+output)/3;
/ G* [  n; ~: f; ] lowpass_filter[1] = lowpass_filter[0];
7 c  R% a* k5 r lowpass_filter[0] = output;! ~; `$ H& b" m2 D4 ^# v
} else if( nFilterType == 3 ) {
$ x" s$ Y) f0 ]3 l* H. b //儘乕僷僗僼傿儖僞乕TYPE 3(Weighted type 2)
* w, G6 J3 Y5 i; N7 k output = (lowpass_filter[2]+lowpass_filter[1]+lowpass_filter[0]+output)/4;4 P* h/ C! Z+ A- X
lowpass_filter[2] = lowpass_filter[1];
/ z. J: t! m3 V$ E' w lowpass_filter[1] = lowpass_filter[0];+ l: p  H. p; f4 W- j' z3 o! N
lowpass_filter[0] = output;0 w% i; C3 N0 L" g
} else if( nFilterType == 4 ) {
% H' X8 J6 a  I& m: N //儘乕僷僗僼傿儖僞乕TYPE 4(Weighted type 3)
! C4 O( ~; d; W# r  D  E) d output = (lowpass_filter[1]+lowpass_filter[0]*2+output)/4;0 E, b/ o) D* u7 S9 ]( ~
lowpass_filter[1] = lowpass_filter[0];, U# Q. f3 U9 d5 G9 \
lowpass_filter[0] = output;, C+ j( B$ E3 T- Z0 T8 d! D
}/ R# c) q) H4 ]" I* m
2 a; g5 y8 f  h; A+ i
#if 01 j, p8 A$ g: R
// DC惉暘偺僇僢僩
' b* b/ ^- |9 ]; f {; f) t5 F( w) l5 T1 l* b
static double ave = 0.0, max=0.0, min=0.0;
/ x0 w: Z& q1 m5 b) Q$ g double delta;
, \/ V8 B/ K2 d+ p# @! ]( @# ~6 q. ~ delta = (max-min)/32768.0;$ \- A+ k0 P6 b: f; a% G# k' {
max -= delta;
3 Q8 H5 l6 O6 w# Z9 ]- E2 R min += delta;
; ~4 T9 k  s& {# c) ~+ X+ K if( output > max ) max = output;; d# h( U/ ~! l1 T* k1 l0 p4 [; m) l
if( output < min ) min = output;
5 Y* C1 q4 k8 r  n( X/ K3 H4 X- G- [ ave -= ave/1024.0;' i/ T$ ^* V9 N3 E1 j$ i* _
ave += (max+min)/2048.0;
$ e5 S% k& V* \9 B! S2 ?4 l output -= (INT)ave;' Q5 i  u. V' y& X9 T; Z" O
}
4 n, z+ @8 [' _+ \#endif* d3 c7 h7 B! V# W# e3 B/ [
#if 1
  W( D1 q8 G; n! B // DC惉暘偺僇僢僩(HPF TEST): A$ q1 T5 j' S( x* c1 X4 p; r
{& |& _: k4 U- U' [; F
// static double cutoff = (2.0*3.141592653579*40.0/44100.0);
! z; m" E' w, f% I static double cutofftemp = (2.0*3.141592653579*40.0);
, u5 p! @( ~* [ double cutoff = cutofftemp/(double)Config.sound.nRate;
. r, `' z; z& W( C static double tmp = 0.0;
& k4 t* |3 A+ X/ e double in, out;
) u% r/ b$ Z& h9 M3 b0 s. j
( l4 O: G0 w4 r7 r" a. N in = (double)output;; {& P1 Z" G/ E
out = (in - tmp);9 }4 V3 A4 `2 ~/ V- P8 ?9 z
tmp = tmp + cutoff * out;% D- n/ y% ]( H/ H% K" E

: H- `( j% ?  J+ j0 z output = (INT)out;7 p- \) Q. C+ T* ?% n  _8 w
}" p6 O4 n) d  A$ t: M& P
#endif/ N& o% r' x8 m) V' A
#if 04 t+ O! ^/ B& d& l; X6 q* z& E
// 僗僷僀僋僲僀僘偺彍嫀(AGC TEST)* t  r3 n/ O. D# f) o
{
! {4 T8 C" \/ L4 L INT diff = abs(output-last_data);. X6 J, c7 R7 n% ~9 e" n" |
if( diff > 0x4000 ) {
$ ~# \  L8 D( L/ b output /= 4;* r7 `" ]+ Y7 Z% b
} else
  t' e/ a* o3 D1 B8 T) M" ^0 o if( diff > 0x3000 ) {
5 @& v1 s7 T6 \; m output /= 3;
, y; L" x& T- |, k0 [1 C* m } else, u9 i9 U7 S- r. R
if( diff > 0x2000 ) {
6 d3 W9 W$ b9 `) P( d% l- H1 | output /= 2;
$ J( D) J8 R  b# ]; @& F. l }( `% f! h; S+ f+ \; q- q
last_data = output;$ b7 `+ r3 ]2 a( I. L$ M
}
, U2 I) o1 l5 \3 e- r, Q/ |, Z#endif5 X( M4 J1 c2 W6 ?6 l- w6 Y7 i
// Limit
3 Q: _" h) V5 ~5 Y* C" U; L if( output > 0x7FFF ) {
! S/ V& r. O9 d2 X" X output = 0x7FFF;
0 l4 A3 h4 V: x } else if( output < -0x8000 ) {
( N1 H; N; q3 ~+ v$ K output = -0x8000;
! }: t. D& V( ~( Q }, p2 u3 ^6 E6 w: d  N: J
, Q# ^, M$ U% o+ v! R4 B- h
if( nBits != 8 ) {
0 B, Q4 _; D4 G: d# A% i- ] *(SHORT*)lpBuffer = (SHORT)output;
/ @( q. B- y4 F' i lpBuffer += sizeof(SHORT);: q6 j- n; l; q" `4 U
} else {
* T9 {" g& F6 H% ]. L8 H% _ *lpBuffer++ = (output>>8)^0x80;
; |# e' @/ ]; b1 M, R }
3 v4 G0 s. c0 r2 V5 ^, J+ g2 j5 C1 s0 |$ d( z1 g
if( nCcount < 0x0100 )8 }$ K6 U6 |1 ?- @; Q! v* @) V
pSoundBuf[nCcount++] = (SHORT)output;
, F" p& P5 w% n0 u. F
: ^# W) H  I$ k# z! J/ l// elapsedtime += cycle_rate;& o/ L7 v, O# `: p9 z0 m8 X
elapsed_time += cycle_rate;5 N7 E# K  q* \8 \
}# i  \( d+ J/ x0 K8 z

% G1 G- T. _+ M! Y* M9 }: `#if 1- p1 m' @: o* F
if( elapsed_time > ((nes->nescfg->FrameCycles/24)+nes->cpu->GetTotalCycles()) ) {7 w0 i5 m# {# R* Y, m, u9 u( H
elapsed_time = nes->cpu->GetTotalCycles();5 `# D* r7 m; }0 @1 u' t( k- A
}2 `% q8 n! e) y( H- G' E: {
if( (elapsed_time+(nes->nescfg->FrameCycles/6)) < nes->cpu->GetTotalCycles() ) {
3 [/ X" |  n) d elapsed_time = nes->cpu->GetTotalCycles();
1 m8 s) m7 G; \9 y }
4 I; ~- h1 X& u% Z6 x# t; N' C#else" s. F6 S8 H! h
elapsed_time = nes->cpu->GetTotalCycles();: N+ C6 u# U0 z) x! p
#endif
- E2 S% L! J+ ?8 \  k* R}2 ^- Q" O7 Q2 o' ?5 [  W

  Z1 b8 D( F5 R" a7 ~1 R// 僠儍儞僱儖偺廃攇悢庢摼僒僽儖乕僠儞(NSF梡)
; M& L6 F. J) a! BINT APU::GetChannelFrequency( INT no )4 s: G( o  D) P; \, Q# O8 X
{
9 j3 }1 B& d# _" U. b# D if( !m_bMute[0] )
8 ~# c% d% Z0 m9 S& ^$ P return 0;6 _5 r6 U) W4 [" ^0 H- I! g) r

0 ?: t7 r4 d* P% P // Internal" o( |4 y, X* o2 X) E  z# n
if( no < 5 ) {; J7 D4 w- o8 [6 Q9 M" n, l
return m_bMute[no+1]?internal.GetFreq( no ):0;
7 `. o0 x) n8 d2 o" z }
% }9 F2 T* o6 i" j8 m) a# X6 D // VRC6
: t; l! N, ^+ i2 s) B9 \ if( (exsound_select & 0x01) && no >= 0x0100 && no < 0x0103 ) {
' o% Q% x, s% ^/ s return m_bMute[6+(no&0x03)]?vrc6.GetFreq( no & 0x03 ):0;
' u9 [, L/ x6 A }
+ W3 T' S, U4 s // FDS$ Z. b7 G: ]: w- M0 j
if( (exsound_select & 0x04) && no == 0x300 ) {( \5 G, k5 j6 v
return m_bMute[6]?fds.GetFreq( 0 ):0;
! o7 h5 T! w3 p* [7 ? }
& B: j" J* t$ T5 P; ~* b // MMC5
5 [: Q& y! P1 l" L8 E0 C7 @. q if( (exsound_select & 0x08) && no >= 0x0400 && no < 0x0402 ) {
+ z: u, n( ~) o' n$ z return m_bMute[6+(no&0x03)]?mmc5.GetFreq( no & 0x03 ):0;9 D; u; S: ?' [8 Y
}
1 {. [0 m7 y8 b6 E5 n  }* \ // N106
; a& K3 p  ~/ d/ ? if( (exsound_select & 0x10) && no >= 0x0500 && no < 0x0508 ) {5 b5 k$ s9 |9 Z* W/ d, x; x& ]
return m_bMute[6+(no&0x07)]?n106.GetFreq( no & 0x07 ):0;
# X6 T( `- T5 m, _( C* b }1 x# n" c, y$ ]  F+ M+ J
// FME7" @& V, G; \; N% V* O0 _. K# s
if( (exsound_select & 0x20) && no >= 0x0600 && no < 0x0603 ) {; L5 q6 f& W6 {1 p6 l) Y2 P9 _- l
return m_bMute[6+(no&0x03)]?fme7.GetFreq( no & 0x03 ):0;
5 k8 m& a: t! ` }
8 m/ h3 u. f! N' v+ Q2 c // VRC7
, Y* W/ m% T; L& t. P7 {4 P if( (exsound_select & 0x02) && no >= 0x0700 && no < 0x0709 ) {
$ b3 x$ j4 J4 R  A" `2 t- S return m_bMute[6]?vrc7.GetFreq(no&0x0F):0;
0 ~' U) q& F- Y$ g5 b& t }
/ H5 H9 W, b1 N$ N* W return 0;, U6 h6 j, I/ ^$ y+ f+ k
}2 n  ?7 Y4 e7 A# D/ s/ ^+ O5 [  g3 G3 E

; ^5 {4 S- v4 F& j// State Save/Load1 p4 W, Q* N- G& b1 Y% l9 c+ s
void APU::SaveState( LPBYTE p )/ I/ d0 V. _7 L! i( }: g
{5 L5 I: Q6 Z4 L: y
#ifdef _DEBUG, d& F" h! V7 n  n& N; q, u
LPBYTE pold = p;
. b6 h0 H( V: U0 s: t: X0 A) }#endif9 B) m) {3 g. S. Z8 y0 ~) d" P+ ?

& U* Y  y5 s3 r5 S7 R3 t6 r# ] // 帪娫幉傪摨婜偝偣傞堊Flush偡傞# Q* J0 j1 i$ o+ R; P3 p
QueueFlush();- p- ^; F2 L9 s# G' u% ~/ p# U

% }1 k) W* j1 V% H6 w) r" U! x internal.SaveState( p );
; {8 K3 l4 T1 J+ ] p += (internal.GetStateSize()+15)&(~0x0F); // Padding
/ P: F! Y2 g" D6 B  b& k% y& A( J7 v; N( `8 b+ N1 |9 y3 V9 E
// VRC6
0 I  ]7 }! g3 N* ~, Q& U if( exsound_select & 0x01 ) {
1 q: r  `: c8 Q/ Y3 {5 ^4 d" }. N vrc6.SaveState( p );
2 V8 u+ {  ^+ O( q4 G0 i  Z p += (vrc6.GetStateSize()+15)&(~0x0F); // Padding
7 u5 R7 `& E: `0 G) N/ k  `* ^1 u }5 w% C- h7 t  I' U
// VRC7 (not support)+ H1 @& v" T4 X* S
if( exsound_select & 0x02 ) {/ K+ W' J' Q: o
vrc7.SaveState( p );0 O) T$ z) S# m* U( }
p += (vrc7.GetStateSize()+15)&(~0x0F); // Padding
9 @8 ^% _4 D/ i" o }1 t5 S( h& s5 c
// FDS
; v7 ~) K" [) B) c if( exsound_select & 0x04 ) {
; R8 e% f' ?; ?5 x- f fds.SaveState( p );% ~6 u0 C9 q* k/ Q. y9 x
p += (fds.GetStateSize()+15)&(~0x0F); // Padding
" q1 E' j5 O9 m2 s5 C5 V }+ b' G; @$ l& D- J" R/ @$ h: M- ~* K
// MMC57 G+ N# ], A6 Q  Z$ M
if( exsound_select & 0x08 ) {
9 ?8 U, Y# k& D, c+ U- H mmc5.SaveState( p );0 a3 k7 R0 x; e" ?6 L1 W. t
p += (mmc5.GetStateSize()+15)&(~0x0F); // Padding
, W8 ]  Y* g* M# j) W2 i }0 x% ~8 ]. ~* B  r" `
// N1067 T- @7 c' G- R0 G1 ]
if( exsound_select & 0x10 ) {
) h& U4 _+ q# J  w( b& L) s9 b3 R n106.SaveState( p );5 A- f9 z) |2 Q! U. i8 S" A
p += (n106.GetStateSize()+15)&(~0x0F); // Padding, Z- E# o% G: V. t2 j9 t8 B
}+ d; x( A9 w% W% N( n) ]: q0 k( O
// FME7
1 `8 ]% i; q6 d: W if( exsound_select & 0x20 ) {
  d( C2 J2 P5 x2 k$ [ fme7.SaveState( p );4 |  a, V( ^; o( `
p += (fme7.GetStateSize()+15)&(~0x0F); // Padding5 e: C; n- ~0 g
}0 b! @! q7 z& @) r
  u+ \7 H" L  F: Y) x7 |# n) D
#ifdef _DEBUG: P, |+ |8 t* C
DEBUGOUT( "SAVE APU SIZE:%d\n", p-pold );
# l% Q  m' ~) O8 p#endif
+ k1 }/ `/ Q- C, f, J2 ~2 c3 C}2 j* _$ v0 o5 }* E! q8 w
0 F' c6 v* m. |; `4 c- w5 I
void APU::LoadState( LPBYTE p ). T' a4 p. O1 \3 K5 x' E
{
0 I% R- _( K7 o$ U( M1 C // 帪娫幉傪摨婜偝偣傞堊偵徚偡% V- h7 u/ g4 |/ p. E$ w1 d
QueueClear();: @+ Y0 t2 j5 s0 d) c" _4 z$ A& X

+ }8 P4 K4 [, b' {% B$ F internal.LoadState( p );  A! F( m! Z: L8 v2 c; z; a
p += (internal.GetStateSize()+15)&(~0x0F); // Padding
! n: R' `; k$ I7 f' V, F+ c. k2 y% d* M& v5 P7 X, t
// VRC62 ^7 O/ I5 M% E
if( exsound_select & 0x01 ) {
; o/ k2 q& T+ {6 _- @% S vrc6.LoadState( p );
/ ]0 q1 J7 M  }3 b- t( M p += (vrc6.GetStateSize()+15)&(~0x0F); // Padding) Y" l: t+ U  D* |
}
% T% [. z3 S7 ^  ?+ s // VRC7 (not support)
4 z8 H9 O  y* [; ~ if( exsound_select & 0x02 ) {
; e. X4 D- V0 b" A& I# S$ [( k8 g) ? vrc7.LoadState( p );! _  K7 O. O4 r3 |2 u) e
p += (vrc7.GetStateSize()+15)&(~0x0F); // Padding
+ T# h. r4 h6 @' [ }3 s8 A  b2 v9 M( r; R  r
// FDS0 P9 |& i% }5 J- L: E
if( exsound_select & 0x04 ) {: f" L4 Q% N5 l, j' F7 e
fds.LoadState( p );
3 s/ Q3 \8 x/ b& F) W p += (fds.GetStateSize()+15)&(~0x0F); // Padding
2 E8 y5 T, C) |) e# N% g }
) z( J7 d& E( j // MMC5
7 j& a) Q  P: S3 q0 `+ d if( exsound_select & 0x08 ) {& T4 T9 t% r% C2 q8 r
mmc5.LoadState( p );* W* `. n  o' z
p += (mmc5.GetStateSize()+15)&(~0x0F); // Padding
+ s) w, d) p9 _2 W; P }$ {; D- ?$ Q. R$ g
// N106
# t% j+ H3 Z* ~0 u9 m* y1 l9 [ if( exsound_select & 0x10 ) {
7 ?1 k' U8 k9 E, w n106.LoadState( p );. J" h$ d6 l' Y  k
p += (n106.GetStateSize()+15)&(~0x0F); // Padding
1 B( t* Q& l& V9 F# S }9 X" b8 k0 B9 b- W: Y
// FME7
! f8 `. }" d" k2 g8 L0 ?1 y+ o if( exsound_select & 0x20 ) {
- {8 [: g6 [" ~# s2 v' \# ? fme7.LoadState( p );8 |: C7 [5 Y9 S  o$ j# r
p += (fme7.GetStateSize()+15)&(~0x0F); // Padding% ?- r: Q( f& F, u/ j: I% y5 h
}
2 e) q2 L: ?6 d: g* e: Z1 C}

krizal · 发表于 2009-11-8 17:25:37

原帖由 独孤残云 于 2009-11-8 14:38 发表
( M4 k: _* W: f0 |可以的话，希望可以得到krizal团长大人或者哪位大侠的详细赐教，就是指Apu模块下这些函数的具体含义和作用。我对这些NES机制的算法很感兴趣。5 ~/ f. G, p3 w4 S7 P1 U6 ~
感激不尽~~

恩我對模擬器不是很有研究，
雖然要了解源碼內容，可能不是很困難，
不過還是要花時間，個人目前蠻忙碌的。

給你一個朋友的MSN，你可以跟他討論看看，
他本身是程式設計師，也對FC模擬器很有興趣。

MSN我就PM到你的信箱了。

希望你能有所得。

独孤残云 · 发表于 2009-11-9 13:23:59

呵…… 谢过团长大人~~

李伟 · 发表于 2009-11-9 16:02:29

团长的朋友都是神，那团长就是神的boss。

krizal · 发表于 2009-11-20 13:13:25

原帖由 独孤残云 于 2009-11-9 13:23 发表
# U" k) H$ l8 a+ H5 ?4 L+ p呵…… 谢过团长大人~~

哈不客氣，算是順便幫他找個伴，大家可以一起玩。

krizal · 发表于 2009-11-20 13:14:53

原帖由李伟于 2009-11-9 16:02 发表 ! ~8 {, o" u* Y4 r( C" k
团长的朋友都是神，那团长就是神的boss。

哈不敢當，我只是個平凡人，
要吃飯喝水，光吸空氣是不會飽的。。。。 :)

慵懒悠悠 · 发表于 2009-11-20 13:32:35

FC模拟器的部分有个人可以帮你忙
ZYH
QQ：414734306
Mail：zyh-01@126.com

他是ZYH Emulator这个模拟器的作者，只是他用的开发平台是VB，不过就6502的实现原理来说是一样的

独孤残云 · 发表于 2009-11-27 09:48:23

再次对团长大人和悠悠哥的无私帮助表示感谢~~

krizal · 发表于 2009-11-27 19:09:06

原帖由 独孤残云 于 2009-11-27 09:48 发表 ) X+ T6 {4 _ J- _# a
再次对团长大人和悠悠哥的无私帮助表示感谢~~

不客氣 ^_^

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