【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
9 W m+ i! j2 D6 C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。
+ g3 N. o7 ]4 S& R" ?( d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~~, b* Z' q9 z( \0 B1 z. S: G( m
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;
9 I% R% T1 H- u) P- V }
5 F( l# `) @7 m5 e: ^}
2 g& W# g! W' j, O' J* [7 T. u' ^( J9 K: m3 {3 h! T. P
APU::~APU()
# n* B8 _9 _" c# e3 N{
; H* J! B' V0 \9 r3 v}
  J8 P9 v% B& i
: u- v6 \$ a  H2 W: H7 u2 G6 O0 Evoid APU::SetQueue( INT writetime, WORD addr, BYTE data )
8 c6 u7 X& B% b/ c1 j{
6 u. P: ^# ^$ K2 F- p% n8 `' [# o' X queue.data[queue.wrptr].time = writetime;8 a: k5 y$ U0 D. A
queue.data[queue.wrptr].addr = addr;
' L% u2 {0 I) K9 Q# O- ^: G- \ queue.data[queue.wrptr].data = data;
3 N8 M/ p( r; h; i3 `+ J. b7 k6 ~$ h queue.wrptr++;2 \* B0 l0 R& V% n
queue.wrptr&=QUEUE_LENGTH-1;  {( j9 u6 O' f1 b; ~. O1 {8 N
if( queue.wrptr == queue.rdptr ) {
1 G2 \. y* J) q6 o7 i( n; x6 f5 a DEBUGOUT( "queue overflow.\n" );
) [0 e4 n2 ^9 w }2 }4 J2 _/ a! ^
}0 B* i5 x5 x$ b* x

2 L" r1 @, m" c, I0 `; ^# TBOOL APU::GetQueue( INT writetime, QUEUEDATA& ret )+ c' i+ `7 I- U- v0 Q- u; T8 L+ r
{0 I$ b2 G6 I+ y- v# P4 m% m( g5 N
if( queue.wrptr == queue.rdptr ) {, \3 w, @: [" M
return FALSE;/ r" W1 H# [8 `+ l/ q
}
. V) r2 k* ?0 ^! O if( queue.data[queue.rdptr].time <= writetime ) {
9 y: \) h. d2 p( T4 {: [ ret = queue.data[queue.rdptr];
/ D$ j; O9 n# M# l queue.rdptr++;
" m( i' p$ Y1 k% @ queue.rdptr&=QUEUE_LENGTH-1;
7 r, O# Z' @- A; U) [ return TRUE;
: k: ~% N3 \$ S+ s4 @ }* Q; R& |, ?9 `; i7 }' `
return FALSE;9 Q$ J% k& k" p4 }" d* }* c* Y
}% ?9 `/ I2 M5 c

, a$ u, w" A, P$ _5 Y" fvoid APU::SetExQueue( INT writetime, WORD addr, BYTE data )
  R- t& b' r1 t+ n) U{
7 y9 |5 K! i7 \+ k2 _ exqueue.data[exqueue.wrptr].time = writetime;7 q( {7 M2 P! B9 |, o  v
exqueue.data[exqueue.wrptr].addr = addr;0 e) Z( k% N" T' M# j9 P
exqueue.data[exqueue.wrptr].data = data;8 P' l) H: ?: `
exqueue.wrptr++;
- u( F/ E4 X: P- ?" y exqueue.wrptr&=QUEUE_LENGTH-1;( _1 c7 s* F( q) J/ X, u0 T( I
if( exqueue.wrptr == exqueue.rdptr ) {
- M5 F  s# o. N: }6 m DEBUGOUT( "exqueue overflow.\n" );
; |. R- C& v, p# H# b* _ }5 \% W' `& `7 l; X& _1 k# Q' s
}/ f' e( i8 B1 t' E( P* o! E
, ^& t# }% E" l
BOOL APU::GetExQueue( INT writetime, QUEUEDATA& ret )5 N2 z) d* Y+ L- K* C% _- \2 r
{+ v$ t7 O/ I! [4 D0 j! @, K, A, p
if( exqueue.wrptr == exqueue.rdptr ) {
" n8 g# B* q9 B3 ~8 ]" P return FALSE;
7 m8 {2 H) K9 ]1 z) i# d9 N }
9 D; ~& D5 Y6 T5 B8 N& q6 g if( exqueue.data[exqueue.rdptr].time <= writetime ) {
1 P* v' s4 n: j( j6 W ret = exqueue.data[exqueue.rdptr];, d3 d; D4 w( [6 {
exqueue.rdptr++;" c  V; Z1 ?& B6 f% b! v/ B
exqueue.rdptr&=QUEUE_LENGTH-1;7 }8 L( Q# K( f7 s# }
return TRUE;' r* L7 h- d2 \' J# L$ y2 T: \
}) {7 t" X% }3 q. G: E9 C
return FALSE;5 s! [7 x( d2 Q7 _, `0 J
}! S, v; X: }6 L
4 a; }+ Y" i4 K4 I/ q
void APU::QueueClear()7 o. |& v3 U2 u9 i* A2 d8 `
{* S5 o0 p; ^/ s2 P( @: Q. F% T
ZEROMEMORY( &queue, sizeof(queue) );7 D7 p& A' |4 x; l* p9 o% L% w
ZEROMEMORY( &exqueue, sizeof(exqueue) );% T- [0 `8 o" ?8 x  K
}9 R( I" y& G  ^' `  r6 S9 f
  p) V5 Z- o: P
void APU::QueueFlush()4 q1 _, t+ e( W: h3 P
{
& e. o9 L7 {5 z1 E" E while( queue.wrptr != queue.rdptr ) {
# ~2 b/ g0 P9 O4 p5 A0 X1 Z1 ? WriteProcess( queue.data[queue.rdptr].addr, queue.data[queue.rdptr].data );/ _9 f  j! m& k& `1 H9 y# M& V
queue.rdptr++;( y; x1 r6 K( |8 \
queue.rdptr&=QUEUE_LENGTH-1;/ a5 `- j2 I$ u% W" V
}
4 F0 J* _9 r% S; [/ B$ G, C% D; @
% B! [  f+ ]1 G) O3 E while( exqueue.wrptr != exqueue.rdptr ) {4 {5 v9 H: s7 O. d
WriteExProcess( exqueue.data[exqueue.rdptr].addr, exqueue.data[exqueue.rdptr].data );2 L$ l4 W/ x, y( A, G4 r* {5 K2 V
exqueue.rdptr++;) E# S, L( @, S; z
exqueue.rdptr&=QUEUE_LENGTH-1;
; P$ ^* s! E/ V! }# m0 H# h }; T( @' o9 H/ O% `. ^" u
}
+ |5 ]9 W+ I2 S/ p! @
. H3 T) J  L6 b- Z3 K4 X% Mvoid APU::SoundSetup()
0 k/ ~9 D: R- s{) u, b* j1 U$ g# Z5 \  |
FLOAT fClock = nes->nescfg->CpuClock;
% B. {3 K) k5 f$ B( N1 C INT nRate = (INT)Config.sound.nRate;. }0 n8 w5 C: t6 R) |& W' S
internal.Setup( fClock, nRate );" o# O+ a2 a. O4 n8 q, `+ a1 i
vrc6.Setup( fClock, nRate );9 g4 [* p4 r& \/ J$ Q9 Q) s% |
vrc7.Setup( fClock, nRate );7 t# @" E; t! D+ f
mmc5.Setup( fClock, nRate );
; ^7 _* L0 ]" M5 A fds.Setup ( fClock, nRate );
8 w7 D1 l" |% R6 I: d+ B" { n106.Setup( fClock, nRate );
; h2 ~$ c0 T6 { fme7.Setup( fClock, nRate );3 k  l1 K1 j; O+ D
}% F/ [2 R& W. i% ~5 W/ R
4 m# v) _7 [! j: y; T
void APU::Reset()0 E) Y9 T" H. M; H5 W
{
3 n  R/ T- I: A5 j1 i ZEROMEMORY( &queue, sizeof(queue) );
- h$ Q, w5 e* ^9 v9 O! d ZEROMEMORY( &exqueue, sizeof(exqueue) );  F# L3 G! f# x. n3 _& {
) N. V; I# g9 O% \2 `4 x
elapsed_time = 0;/ ~$ m6 D9 o  Z7 D& I( Y% d: |

/ @7 i" k( L0 ?  r; P/ A FLOAT fClock = nes->nescfg->CpuClock;
0 e* ~9 p% a! S; _1 B: Y INT nRate = (INT)Config.sound.nRate;
* M. F8 m4 K. t! L4 r internal.Reset( fClock, nRate );
" N& {; D) W  `; C9 o! h vrc6.Reset( fClock, nRate );  j( S5 `# J  [' g
vrc7.Reset( fClock, nRate );: R( ^  R% X9 g
mmc5.Reset( fClock, nRate );
  Z4 ]* V5 ]: y/ _/ @ fds.Reset ( fClock, nRate );
/ U5 s$ f" {/ l1 T9 f) ` n106.Reset( fClock, nRate );
4 E: o+ i) t* Y5 g4 z fme7.Reset( fClock, nRate );
; F/ B8 D+ Y, [4 C8 R
6 |4 {  p( L' ~' \0 }; e SoundSetup();* ?) o2 j) g4 j: [3 u
}' n1 K( m# f2 ~% v9 I# u. d

9 N* l: A2 Y( j) D1 Ovoid APU::SelectExSound( BYTE data )% l) S' |& @# Q- r7 e8 K6 z" h1 x  X* r+ N0 C
{0 y1 C6 p! U6 r9 B0 w
exsound_select = data;- W  L' r1 `- l, ~/ u0 P$ Z7 D* x
}
2 h' P* u3 H% Z8 k
; w; O* G2 Y. c3 _4 R. t0 F& \BYTE APU::Read( WORD addr )
/ W6 H" d+ h! r2 m) [{' v- _. ^9 x. S& S! w
return internal.SyncRead( addr );; ^5 C: k$ K" H& T: t' v
}
4 q: j0 w7 Y! s. z7 F/ U9 O  B9 P
& t7 Y) U. ~* i! cvoid APU::Write( WORD addr, BYTE data )
6 F( \; L" D) P; U$ U" A+ N{2 J9 O0 k' M, w7 Q- |0 D( A
// $4018偼VirtuaNES屌桳億乕僩
' u8 _& e# C( C7 z5 j1 X if( addr >= 0x4000 && addr <= 0x401F ) {9 c) ^/ Z, @* {/ i% e
internal.SyncWrite( addr, data );; Q2 Z8 N( V& ^1 f) d
SetQueue( nes->cpu->GetTotalCycles(), addr, data );. E- L( B9 @8 h% y5 r' N' U
}
0 ^+ S- J6 i) o. I7 g}
3 ]% p2 n9 g4 w( r1 p6 [; ]+ u3 s$ k* x
BYTE APU::ExRead( WORD addr )
{
$ O; D+ G) b' g- yBYTE data = 0;7 U. q: d; ?2 }5 C
; ^! S# c9 s0 Q7 }& s
if( exsound_select & 0x10 ) {4 ~( Z7 a. R- Y5 x( w) b8 G
if( addr == 0x4800 ) {
! I% v/ s4 q* J* `5 D# K+ l3 M SetExQueue( nes->cpu->GetTotalCycles(), 0, 0 );& P% s- l1 i7 s' h# l0 x
}$ D9 k/ C! a6 G0 Y
}, K. q. _, O7 c0 f0 t( B, h
if( exsound_select & 0x04 ) {, W6 u3 J# ]* Z+ e/ V* _0 X
if( addr >= 0x4040 && addr < 0x4100 ) {* O& i  G! [" Q8 W
data = fds.SyncRead( addr );
5 M% Q  m2 d' D2 W# z, O# F0 k. g }
' _# N1 _8 P4 j6 F, B/ I! g) _ }$ x4 X/ V( P: x/ S% Y& z8 L( x
if( exsound_select & 0x08 ) {2 x% i  q, g# u! n. r& y0 w. E
if( addr >= 0x5000 && addr <= 0x5015 ) {& ~1 b& N9 p8 Q5 w, {/ w
data = mmc5.SyncRead( addr );7 f. K! |  Z1 g( |/ [3 M
}/ H8 @9 e4 ~5 f0 R  _
}
& Z( v4 |7 B% R. `3 S, z* z
" L) F  d( p% D7 b8 @* ~) [; a1 }+ { return data;
3 ]6 L3 @2 o* o}3 C. ]/ [5 [9 _0 Q% u% r

+ T) B& o# _- m$ L9 i. b3 f, }6 Avoid APU::ExWrite( WORD addr, BYTE data )
2 i9 [6 ~3 a  z' `; k  H( G{
9 n$ \2 Y- Y' y# p, } SetExQueue( nes->cpu->GetTotalCycles(), addr, data );9 {# V$ ]( y! l: `
7 K7 T) Q1 K  C9 k; ?
if( exsound_select & 0x04 ) {
" X. X8 G# \7 {' S# B% T if( addr >= 0x4040 && addr < 0x4100 ) {5 M! q, k$ @* |
fds.SyncWrite( addr, data );
- W9 |. k* W8 p! k }0 S1 M- K' b5 M* k5 m" `2 Y
}- F8 r- [/ S: B, T" F; X

, }4 B/ p: F, n. o6 c5 O6 H- p( R  k if( exsound_select & 0x08 ) {
+ E$ T! H( n* c if( addr >= 0x5000 && addr <= 0x5015 ) {
* w& r! w* v! H! D3 W7 K+ J mmc5.SyncWrite( addr, data );
2 o( E9 {: f( [  A }1 ?! s/ y3 t) L
}6 Y  j# i) s% O/ F% R% u. ]6 V
}
$ v- V' ]- T4 j% F" ?/ c' A+ j% s6 x( \- f9 O1 p) @6 r8 b$ G2 U
void APU::Sync()
' Z' d: P5 u1 l8 F! ]( e{8 u: @5 Z: y. G  k% u
}
! Y3 Z$ D6 Y) ?3 z7 D; C$ [! G
# I7 R7 H; F' v4 Q! M6 q2 f$ E+ {void APU::SyncDPCM( INT cycles )# A+ Z! `& o9 ]
{* |' W1 D/ e: P' [8 K
internal.Sync( cycles );  j+ t0 M$ l/ E

- _4 `; _4 S( ? if( exsound_select & 0x04 ) {
3 a/ Q6 H' c: h" Y1 l fds.Sync( cycles );
( t! ^' Q" Q; c. Y* Q/ @% {& N }
5 A; G7 o! l/ ]# q0 ? if( exsound_select & 0x08 ) {
8 P- [! ]* H5 N mmc5.Sync( cycles );3 Z8 _, r! H; y" ]+ A8 C# u5 g1 ?9 L
}$ D; R* l; e! x9 ?4 _
}; E* o& ~4 a/ q( a% }
/ c* ?5 [; O0 Q4 n* \- M6 y
void APU::WriteProcess( WORD addr, BYTE data )
9 U/ |3 h# u8 b% T5 X{5 W2 v2 x: a  w3 m
// $4018偼VirtuaNES屌桳億乕僩6 y& b% |' x% ?+ C" R0 l
if( addr >= 0x4000 && addr <= 0x401F ) {
! T+ T$ N9 a7 j! r6 ]2 H internal.Write( addr, data );5 q0 L  d" m/ ~$ Y! L
}
$ q( q# P' |% X3 A6 `8 c5 H}
% a( b! F2 L4 `  _
) _8 H2 o6 O2 D4 nvoid APU::WriteExProcess( WORD addr, BYTE data )
( C4 K: O2 ^, j% K4 o' Y% T* N{5 Y6 U( r  {, k5 x( V* i- ]& o
if( exsound_select & 0x01 ) {) o% Z( C9 D/ }: w
vrc6.Write( addr, data );. q0 Q1 h! O- x) Q9 h' k: E0 F8 M6 @6 u
}
. a  F, u$ w9 f' ? if( exsound_select & 0x02 ) {
; f# L, A5 m% k' o5 ` vrc7.Write( addr, data );% d+ [0 ^. w+ D3 \# {+ v
}
3 C( E0 ~0 N: G0 r if( exsound_select & 0x04 ) {
3 G  I7 W6 A5 Z- R! m* x4 I. M fds.Write( addr, data );
3 A3 t6 l6 q9 w/ A' I }5 r5 ]  @$ V" m" ~* k; j! ]4 \/ b
if( exsound_select & 0x08 ) {
. p  q; m) l5 s/ U5 ~: Y mmc5.Write( addr, data );, X) I$ i' Q% s# c( j' n8 ~  Y
}
( z, Y4 [6 b/ [* s. {6 D0 s if( exsound_select & 0x10 ) {
' H  t/ q8 |4 E: z5 z) P if( addr == 0x0000 ) {
# ^6 P' Z0 c+ C- y BYTE dummy = n106.Read( addr );
( h& m* K% M/ G9 \! { } else {
: x: Y! w  ?7 z' l  U" r( v n106.Write( addr, data );
- ^2 B) M& O. f/ I' E6 g2 p7 | }
8 g/ O* P$ ?7 I }
/ C9 ^1 ~( j% r; ^ if( exsound_select & 0x20 ) {
* D* m& H# i0 M. L6 r fme7.Write( addr, data );
# V; }1 G* i5 N- R$ P8 z }, I% G( e+ e+ ^
}" d$ m* J' [; N
/ Y9 [& }+ J1 m
void APU::Process( LPBYTE lpBuffer, DWORD dwSize )
# }" n  j: A$ ^, r{
; _+ v  d9 r, b6 f' F, F9 fINT nBits = Config.sound.nBits;
4 U! u, S; N( B2 f; _8 h- t' PDWORD dwLength = dwSize / (nBits/8);
2 }) A. `; T; s# f+ _+ GINT output;
; O# ?7 M& S1 Z) I. i7 H. gQUEUEDATA q;
9 o9 n3 \/ G; @! PDWORD writetime;6 d+ y! a5 |7 N! _7 @- [# z
4 V! `3 a2 f8 n# |$ i1 q
LPSHORT pSoundBuf = m_SoundBuffer;
1 `2 x+ H0 l6 H. ^+ N: a! N) QINT nCcount = 0;
7 I3 _7 U3 _: Q# I) a9 ?% o: ]- G# L8 v' P3 Z) w" `
INT nFilterType = Config.sound.nFilterType;
( L1 l  b2 d6 W0 B" L
# b. P, m4 C! k8 M if( !Config.sound.bEnable ) {
7 u% C0 y! ~! |7 k; v  C# U ::FillMemory( lpBuffer, dwSize, (BYTE)(Config.sound.nRate==8?128:0) );
4 [; X, Z0 a6 a0 q- e3 B  I return;
8 `/ u: u* v% z5 ]% ^. B }
# o  Q( S* y, l9 x
* ~4 v  \4 }& l1 q // Volume setup
/ X# W# z5 t/ U1 b: v6 x: E //  0:Master
5 B5 A8 c' q0 I3 J: {! w9 j# U //  1:Rectangle 1* p" G" u  [2 M- a
//  2:Rectangle 2
( v9 \- h+ J7 ~. Q7 [8 h9 a* f //  3:Triangle5 H8 s3 V% T7 E0 s" m. j
//  4:Noise
& {: p# l3 d( U' T9 Z: D7 l( j //  5:DPCM
1 `8 f" F' y) N //  6:VRC6: [) P8 ~5 t8 H) W* `
//  7:VRC7/ j# ^3 @0 ~6 X. b  J* ~; m; U
//  8:FDS# {( n  g7 H6 O8 s( ?2 @- m2 a
//  9:MMC5
% F, ^( K3 |  r$ s0 g8 ` // 10:N106
" f) |# m* f8 Q2 I) ?! z // 11:FME7& R! Y1 n+ W4 n% E3 h. j( Z2 n6 W
INT vol[24];( O9 H" y( E& r4 y; |
BOOL* bMute = m_bMute;- y& X5 R) z+ C# `2 S  x- V
SHORT* nVolume = Config.sound.nVolume;
' I" I5 x6 j1 R7 x) U2 W- s! ?
" v8 `* i6 A! y- ]- r INT nMasterVolume = bMute[0]?nVolume[0]:0;  k$ G% t9 p! A3 B
& ]2 J& l, f1 z: j% G, t
// Internal
5 L' U  f) F" x& f" e+ I  ] vol[ 0] = bMute[1]?(RECTANGLE_VOL*nVolume[1]*nMasterVolume)/(100*100):0;* o: N+ t+ l1 o- D
vol[ 1] = bMute[2]?(RECTANGLE_VOL*nVolume[2]*nMasterVolume)/(100*100):0;  O1 L1 b0 k# h- v0 T
vol[ 2] = bMute[3]?(TRIANGLE_VOL *nVolume[3]*nMasterVolume)/(100*100):0;. `9 t5 q) W1 W. o: l9 j& h, x
vol[ 3] = bMute[4]?(NOISE_VOL *nVolume[4]*nMasterVolume)/(100*100):0;' L$ n8 H3 ?# ?4 Z. Q/ Y- ^
vol[ 4] = bMute[5]?(DPCM_VOL    *nVolume[5]*nMasterVolume)/(100*100):0;9 d, R& }& ^: D+ x6 f8 _2 s1 w

9 x7 t9 E5 \8 w, s  J& J // VRC6& l/ H% U7 p8 \* i1 _% e/ p
vol[ 5] = bMute[6]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;
3 K& \; f2 d2 J# i4 M vol[ 6] = bMute[7]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;) {$ w! ?9 H7 e) I; l$ ?8 x! F* s
vol[ 7] = bMute[8]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;" C6 L# n* A" |

5 c! B2 W/ w' s4 U7 t! B // VRC7) Q: n; a) o* Q. }9 w
vol[ 8] = bMute[6]?(VRC7_VOL*nVolume[7]*nMasterVolume)/(100*100):0;# b- L4 y/ W1 x' K

2 u! i. p( A, B9 E/ H8 V+ A6 ~/ s // FDS
6 j: X+ o4 W1 h vol[ 9] = bMute[6]?(FDS_VOL*nVolume[8]*nMasterVolume)/(100*100):0;5 j% y& {. W# h; _, R' V: n# u0 `
. H& Q, I* y1 {( ^
// MMC5
5 k+ f# k! j$ O vol[10] = bMute[6]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;
6 |5 s9 J* w! a, X5 n. ]; O vol[11] = bMute[7]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;) M# y3 n/ B) ^/ k
vol[12] = bMute[8]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;
* D( z; r3 v" A* A9 g! R$ B2 Z' a& [$ m0 M9 U- I4 ]. t
// N1065 l! o5 z+ Z" z/ T3 _
vol[13] = bMute[ 6]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;0 G$ f4 P. P1 D+ O( W$ `
vol[14] = bMute[ 7]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;$ Q% x0 t3 {+ @, J; |7 x
vol[15] = bMute[ 8]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
. C3 x: k# @, n1 A vol[16] = bMute[ 9]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
% Z! r4 V* b& |9 R( `6 W% }" Q( r vol[17] = bMute[10]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;+ Q5 S8 i6 S0 ?, n% [; k; f1 T/ \
vol[18] = bMute[11]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
0 P6 ]$ w  ]' P vol[19] = bMute[12]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
# P$ h! e6 J( d' i7 t vol[20] = bMute[13]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;$ ^/ d  Q4 |& w! d# _: x7 @

( g7 W* L, L8 F2 Z8 R) n1 r. [ // FME7
: |. I' t/ e. B2 R) Y vol[21] = bMute[6]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;) q" M1 f* i; t8 v! }4 c0 F
vol[22] = bMute[7]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;+ [4 Q; |" ^7 w( w: z
vol[23] = bMute[8]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;0 {: G$ ]0 y. m9 f* H
, ~: S- u# }* b. ~* P0 q$ ]
// double cycle_rate = ((double)FRAME_CYCLES*60.0/12.0)/(double)Config.sound.nRate;" z, p+ u2 z9 U
double cycle_rate = ((double)nes->nescfg->FrameCycles*60.0/12.0)/(double)Config.sound.nRate;5 |" Z, {; l0 g- U, _

) L# X9 y4 h$ B# h& I // CPU僒僀僋儖悢偑儖乕僾偟偰偟傑偭偨帪偺懳嶔張棟# w& i8 P6 i- }1 E! s( I1 ^) g+ v
if( elapsed_time > nes->cpu->GetTotalCycles() ) {% B4 D4 U2 w+ ?
QueueFlush();  w' ]: c0 \" @7 V8 h. Z
}
% m! S/ V" W1 s+ K! h* A' P) j' e; `; \
while( dwLength-- ) {
5 C( {7 b  w2 B1 E% x4 w writetime = (DWORD)elapsed_time;- v0 d$ A) ?+ D$ @' ^* O

; S% s+ z6 u% {5 ]2 d' W while( GetQueue( writetime, q ) ) {+ ]; l4 A- R  ~) ?. F
WriteProcess( q.addr, q.data );
! j' d) v8 E9 b% j* _4 c1 I! r }! a' m, e' e! W) m
. Q0 Z3 e( n4 ]* ?" B: i/ M4 v
while( GetExQueue( writetime, q ) ) {
/ \, v$ ~& q7 m9 P9 z& P WriteExProcess( q.addr, q.data );# X  T/ [# F& k' G4 ]. T/ f
}
* O6 S. ~1 Y& f0 ^4 K: W: ~) H( G- M4 w! Z" H( \
// 0-4:internal 5-7:VRC6 8:VRC7 9:FDS 10-12:MMC5 13-20:N106 21-23:FME7
5 N/ v7 [' k5 ]) ?0 W) O% z! ? output = 0;2 k$ d, C$ |+ a8 ?$ j8 m. H
output += internal.Process( 0 )*vol[0];. ^% W. U& M+ c8 I
output += internal.Process( 1 )*vol[1];& k% G8 w; f3 j$ v) G
output += internal.Process( 2 )*vol[2];& j  a" r0 U" {8 {: f+ h
output += internal.Process( 3 )*vol[3];
. ~2 s& e' O) L9 h output += internal.Process( 4 )*vol[4];
  m' I% W: \5 O: V% U  Z/ K) n; K
  c% z( y( j2 D, F if( exsound_select & 0x01 ) {. t0 _# P3 A' U+ `
output += vrc6.Process( 0 )*vol[5];% ?& y* Y- ?0 Z% y
output += vrc6.Process( 1 )*vol[6];$ i- k: Q4 @. h2 J. Z  e
output += vrc6.Process( 2 )*vol[7];9 @% y& [5 C) A! E
}
  U! ]3 K2 H( [; |5 C: B8 z if( exsound_select & 0x02 ) {
$ R/ n6 T% v% r0 o output += vrc7.Process( 0 )*vol[8];
" Y1 L9 l& S8 z) j: v+ T9 J }
  S( Z0 Q9 b+ W+ ? if( exsound_select & 0x04 ) {
3 M- z& X. W; T" q4 E) o5 `, K output += fds.Process( 0 )*vol[9];
- N# Z" P5 Q) }/ ~  _# J- G$ T! N }
+ U) v: p% i* H% y0 f" Y if( exsound_select & 0x08 ) {, Y5 s9 L+ ?4 D: J9 ^
output += mmc5.Process( 0 )*vol[10];3 O, x" `+ c& y1 U: i1 P
output += mmc5.Process( 1 )*vol[11];
* `* r) R, W+ p: b$ I output += mmc5.Process( 2 )*vol[12];
3 u% T* M; c$ M, ]& o6 {. F) i  p }) T6 K, ^$ H! U6 H/ [! o" p; w
if( exsound_select & 0x10 ) {: Y- S1 F/ C9 y+ Q
output += n106.Process( 0 )*vol[13];9 P& v" v% I, B- ]" G
output += n106.Process( 1 )*vol[14];. |' f( {& ~( j# j3 K6 S' V
output += n106.Process( 2 )*vol[15];0 ]0 i' T0 n. y# k# g( n
output += n106.Process( 3 )*vol[16];0 [4 D$ ^1 ~& L' M3 k
output += n106.Process( 4 )*vol[17];
3 s  l, f4 d: v) w output += n106.Process( 5 )*vol[18];9 `4 _$ s6 D) l( V% O% ]; z
output += n106.Process( 6 )*vol[19];
0 B) G" A2 A. f output += n106.Process( 7 )*vol[20];
# H3 J7 E3 N% {& M8 h$ g7 @ }' w" q" ~5 |% F" ^
if( exsound_select & 0x20 ) {4 }! q6 `  Q0 J9 s% p
fme7.Process( 3 ); // Envelope & Noise. Z2 M: J' p$ O, Z% M
output += fme7.Process( 0 )*vol[21];
6 h- g( R7 b3 x8 K) p+ D- b output += fme7.Process( 1 )*vol[22];( r8 E$ ]' ]  Q7 s4 u$ a3 F
output += fme7.Process( 2 )*vol[23];
6 n0 e; }! j- |) E3 r" ~5 d }& n# ^# s8 i1 z0 k

1 B  M# w$ M2 H+ l; t+ Y1 e0 y output >>= 8;6 f! M3 r( T0 _! s" G+ d: @
" s! c# a/ x# D7 g0 @
if( nFilterType == 1 ) {
& o7 h: B- u3 w# _ //儘乕僷僗僼傿儖僞乕TYPE 1(Simple), d  W: T/ J: c, N# T
output = (lowpass_filter[0]+output)/2;/ K6 w4 f& L. T2 G% }2 }6 p4 [0 L
lowpass_filter[0] = output;
. `, @9 D9 Y+ }3 ]2 T } else if( nFilterType == 2 ) {
8 A# A  ~+ G) g //儘乕僷僗僼傿儖僞乕TYPE 2(Weighted type 1)3 w! a- ?# h5 f# G  E% a
output = (lowpass_filter[1]+lowpass_filter[0]+output)/3;
7 {6 z# N* Q" p! W9 e lowpass_filter[1] = lowpass_filter[0];+ k4 @: _9 V% o  _2 {' l! ]' Z
lowpass_filter[0] = output;! r# o% [$ \0 r6 T
} else if( nFilterType == 3 ) {
! y  O7 U- `* P8 K //儘乕僷僗僼傿儖僞乕TYPE 3(Weighted type 2)$ k9 U. o' y1 }) A4 Q
output = (lowpass_filter[2]+lowpass_filter[1]+lowpass_filter[0]+output)/4;8 U  {/ M) v" p- i7 G# H1 r
lowpass_filter[2] = lowpass_filter[1];$ R4 e- G* U: V# O
lowpass_filter[1] = lowpass_filter[0];' f& G( t3 M3 K
lowpass_filter[0] = output;% P$ C8 h: G7 ^# h; M
} else if( nFilterType == 4 ) {& |/ y# E0 X9 y$ X: t; r7 n
//儘乕僷僗僼傿儖僞乕TYPE 4(Weighted type 3)2 ?) A! }1 }, n/ j4 B
output = (lowpass_filter[1]+lowpass_filter[0]*2+output)/4;* h5 d9 j7 ^# q1 }. v" s
lowpass_filter[1] = lowpass_filter[0];, K  E8 |. M" p: }  J8 T
lowpass_filter[0] = output;. L4 ?7 N* ?3 G% n
}
$ ^3 A: j% Z$ r, Q5 D/ S: g; h4 Z' e8 C6 W
#if 0
5 v: c- u; D: g9 Z$ m // DC惉暘偺僇僢僩- I/ B5 y+ B4 Z2 F  D% M/ |
{
# d+ E4 M6 D2 x; L1 I4 N& m& y static double ave = 0.0, max=0.0, min=0.0;7 Z6 e0 O& \$ F( a$ Z+ [. m
double delta;3 r$ V1 C# _+ Y! P) C% T& x% o
delta = (max-min)/32768.0;
' g: y/ b5 j3 |% t' h0 g/ [3 ]( ? max -= delta;5 }4 O4 a4 \1 |6 V. X
min += delta;6 I+ L! N  N4 n) d, ?/ b' M
if( output > max ) max = output;
. y! x4 W# J; b- t- J' X! p# H if( output < min ) min = output;, Q0 u! n& N" `; C% J+ _
ave -= ave/1024.0;
8 a  ]0 g( D, j. W/ |5 R ave += (max+min)/2048.0;
( {& l& b. Q9 {4 e+ H output -= (INT)ave;  [8 U( V9 a$ S3 p
}
' Y  x$ n6 S: L0 c9 ]#endif5 K$ S- {; ]+ f, j1 j0 {5 O4 |) E
#if 1
, z3 W0 c9 `3 a' B // DC惉暘偺僇僢僩(HPF TEST)
* x3 S* d0 ~1 s2 E9 ^' [$ u+ a  T {
, n9 L+ C* F% a2 g+ Z# i// static double cutoff = (2.0*3.141592653579*40.0/44100.0);( j' ]7 g8 O: u3 v
static double cutofftemp = (2.0*3.141592653579*40.0);% _! A: Q( v, j$ T
double cutoff = cutofftemp/(double)Config.sound.nRate;
* K4 c$ E; t7 z2 G8 j: m% J% o' n; ~ static double tmp = 0.0;1 V* ?2 h8 K; S+ M/ R! ~
double in, out;
! X. F( y8 l0 [5 o
1 `/ W6 s% p* Y in = (double)output;9 y+ r9 ?6 T" K% Q- T, Q& t8 ]) H
out = (in - tmp);
) b  T0 A( Y+ I4 G tmp = tmp + cutoff * out;
$ @$ `& K/ X! H) ]( f* ?# O) w: p5 Y3 k: N1 O* b' I: p# t' G
output = (INT)out;) \: ^. l) j4 Z* P  W
}" t7 }5 b  j: f; e; F+ B& c
#endif1 f0 e+ \1 g+ j4 Q' I$ _
#if 0" i2 ]1 ^6 g) g
// 僗僷僀僋僲僀僘偺彍嫀(AGC TEST)3 ~  q1 H1 x( ]  g" O) n& E6 A
{$ W+ L! D: D! H- Y' _9 }$ Z! P/ v. k
INT diff = abs(output-last_data);
+ x! }: s3 ~0 W& G4 U  W if( diff > 0x4000 ) {) M4 B" E1 ~2 M2 d- p' p
output /= 4;$ v5 Z- {* O5 j, B; l
} else ( w; r6 |) i# Y7 {1 |% p( e
if( diff > 0x3000 ) {( \7 Y9 R1 G* \4 c8 T
output /= 3;7 g+ Y/ }, \+ N+ H4 ^" M
} else/ n0 g4 T. [5 C5 U
if( diff > 0x2000 ) {. u1 V- ]7 R& S7 q8 ]  n3 R; e# V
output /= 2;  C* S1 J+ [0 y  {" I, r
}; Z0 @  a: d6 W* n+ @
last_data = output;
5 d7 ]5 l; v7 E2 s; I3 i }
2 o. j- P6 T; t6 b  u+ \/ `' t#endif' g- j) J' [8 V) w' Z
// Limit, [  t. [& ~" |/ {! k" @; u+ |
if( output > 0x7FFF ) {
( g2 ~+ o' P# P# A9 ]9 N output = 0x7FFF;- c4 G! @6 A! `+ i, f- l" y) J- T
} else if( output < -0x8000 ) {
& s. `7 N& X9 X, p0 W4 b0 n$ j output = -0x8000;
& o" y4 C4 f5 [3 M }! B5 X% M& D! B2 _

: |: }" r0 V) R7 S: [9 _& s if( nBits != 8 ) {% F4 m7 q- Z# `. r5 `; z- j
*(SHORT*)lpBuffer = (SHORT)output;
2 t$ k. P8 }+ L, E6 p$ s lpBuffer += sizeof(SHORT);
! i0 `+ ]% o8 s. b* c } else {
/ S# |- G) u# Z *lpBuffer++ = (output>>8)^0x80;
1 ?3 D  y2 y# @, c: l }- Q# D6 |* k0 G: K/ A0 ^

2 F: V( Z7 P+ `* o if( nCcount < 0x0100 )
) J2 s' e+ g* E7 I pSoundBuf[nCcount++] = (SHORT)output;
3 |3 o* }3 j8 s# o& F7 `6 {/ c& w: a) G3 T
// elapsedtime += cycle_rate;
. `8 p5 D! X. F. M elapsed_time += cycle_rate;( e) W5 A, u& V" h
}: Y( ?# J$ `% n5 A0 s, ?

+ ?, q+ P* \' O8 ~$ g#if 18 d( k% {0 l, z5 b$ K
if( elapsed_time > ((nes->nescfg->FrameCycles/24)+nes->cpu->GetTotalCycles()) ) {! t- `  A0 h* x7 j; _
elapsed_time = nes->cpu->GetTotalCycles();
% L. T% N/ O% x1 l- M7 h7 D( l }
! w9 o5 k- A; p. d! f9 A if( (elapsed_time+(nes->nescfg->FrameCycles/6)) < nes->cpu->GetTotalCycles() ) {* ]5 B% [# s6 r, T. {9 k
elapsed_time = nes->cpu->GetTotalCycles();
1 e7 l: \0 u8 U8 D& Y7 @ }6 P' _5 v2 X1 N8 ?
#else4 n4 G. [' y! j! k) m5 w0 l
elapsed_time = nes->cpu->GetTotalCycles();  K- L% |' g9 r" k" |  T% v. u
#endif! _5 ^0 C( U3 a) s
}
" m* `4 a, O5 c* k
# s; z0 N) z5 B* o. ?// 僠儍儞僱儖偺廃攇悢庢摼僒僽儖乕僠儞(NSF梡)
! y  y! b% ~2 p1 ?9 `INT APU::GetChannelFrequency( INT no )
7 T. ?! \7 E: ~8 \. s4 h/ x{
7 Q& q3 }& G  A& u4 @; [6 u3 ? if( !m_bMute[0] )( \( K. `* g; X7 x
return 0;/ M% ]1 f+ S/ A" B, m2 t

2 F% `. p9 P; @" Q4 W; F1 x // Internal
' h% v* ]( G6 ?" }9 } if( no < 5 ) {: m: B& _6 g! w/ h5 h# r
return m_bMute[no+1]?internal.GetFreq( no ):0;0 A/ X8 }6 q9 E, L* z
}  l- i3 I9 C) j* L
// VRC60 O/ b! S$ v$ K" ~; T) Z) J& ~
if( (exsound_select & 0x01) && no >= 0x0100 && no < 0x0103 ) {
" A0 V& n4 i: @* v' z. i/ L return m_bMute[6+(no&0x03)]?vrc6.GetFreq( no & 0x03 ):0;
6 b, R/ g, K2 O) Z }" v8 a* i" R: `# @* D) d6 s
// FDS
$ U+ R4 s5 R( i& P& ? if( (exsound_select & 0x04) && no == 0x300 ) {' S$ j4 m% J/ d& `
return m_bMute[6]?fds.GetFreq( 0 ):0;7 {( l5 [2 J& N4 a
}) |7 f8 T1 s6 D
// MMC5
% ~, u# F- \+ K$ O) A: _ if( (exsound_select & 0x08) && no >= 0x0400 && no < 0x0402 ) {3 ^9 i; e7 K- D; @# `
return m_bMute[6+(no&0x03)]?mmc5.GetFreq( no & 0x03 ):0;
% o- ]) g/ ~# n. @- ^- l, T6 }& L }
6 k6 E/ o4 H+ p$ l // N106) i8 d$ ~- t) J0 T( \: ]5 }
if( (exsound_select & 0x10) && no >= 0x0500 && no < 0x0508 ) {
: ]8 J) m  l5 h; y7 Q return m_bMute[6+(no&0x07)]?n106.GetFreq( no & 0x07 ):0;
7 N* n; [1 z; S0 a. B) n3 L }
, o+ ]7 {7 S* ?; b% Q5 p // FME7; {# F5 M! ^5 A. c
if( (exsound_select & 0x20) && no >= 0x0600 && no < 0x0603 ) {) ^$ }( Y5 p: F$ b# B
return m_bMute[6+(no&0x03)]?fme7.GetFreq( no & 0x03 ):0;/ q; c0 ]: q5 e! t
}+ Z8 M2 B. e& H+ U% _
// VRC7
% c9 |  F' \  c: _, a if( (exsound_select & 0x02) && no >= 0x0700 && no < 0x0709 ) {
3 }" e3 W# B+ x* V4 s9 J5 S' y' v return m_bMute[6]?vrc7.GetFreq(no&0x0F):0;5 O7 ]% [4 {: d  X9 J. Q. g$ z
}/ a5 {  K* _. p. N$ h' h: i/ e
return 0;4 f$ l% C% j3 J4 p
}' M* P$ Q" d; ^' s5 G( r
5 j* s$ R1 A5 Q* F
// State Save/Load
0 c9 d. u3 g9 U% H4 G( V+ B  m* ^void APU::SaveState( LPBYTE p )
/ ]% r- Y8 ]9 B. z8 X+ Q{8 d$ z1 {* O4 P5 b
#ifdef _DEBUG
$ G( V; \+ O: uLPBYTE pold = p;+ Z% m* q9 A0 z! F0 V7 k
#endif- F- G8 s0 {1 j% F, G9 P
2 L' l7 h! p1 Q) U! W0 Z- M
// 帪娫幉傪摨婜偝偣傞堊Flush偡傞
% ?/ N7 b: f  j# j8 h QueueFlush();8 l& u) H' Z5 p. u' r1 N
0 z& B3 {9 N' k6 W, }8 A0 L6 {/ p* q
internal.SaveState( p );" k$ F( O9 r) u8 c
p += (internal.GetStateSize()+15)&(~0x0F); // Padding
0 _3 p7 Q/ ^1 c5 I3 b, L$ T7 \8 {( O; V8 W+ {( a$ t4 ^
// VRC6
; Y3 c$ Q# i6 ]) d( o1 ^$ _ if( exsound_select & 0x01 ) {
: j! f( V7 f. C  G0 G vrc6.SaveState( p );: r& O. F* h- |# E- z  m" b
p += (vrc6.GetStateSize()+15)&(~0x0F); // Padding2 N& Q" C; }6 q' m' a5 Q
}6 i( V( K" Z2 A. o( D9 O
// VRC7 (not support)
* U! ?& f5 O- x5 u8 p0 e+ ^ if( exsound_select & 0x02 ) {: ~) P% O. ]' k5 E8 e
vrc7.SaveState( p );+ ]! H5 H5 H# e
p += (vrc7.GetStateSize()+15)&(~0x0F); // Padding
# E& ]4 Z! A9 [6 v7 c$ ^0 d# M. [! Y2 r }+ L7 W3 Q3 w, K9 y7 ]/ E9 }" I& H
// FDS
' j5 u) k( o( o2 `6 F if( exsound_select & 0x04 ) {# c3 `8 Y8 _- X9 l  x- ~% q
fds.SaveState( p );- X4 q8 U' R: ~
p += (fds.GetStateSize()+15)&(~0x0F); // Padding
. W1 g# v$ N: r. }  I7 K }/ V9 N0 J& q* L* D
// MMC5
+ H% L/ a# t6 Z. \5 j if( exsound_select & 0x08 ) {8 ^2 p# Z& O* o2 F* [+ M- J. k
mmc5.SaveState( p );
0 q) S  A' d* a p += (mmc5.GetStateSize()+15)&(~0x0F); // Padding2 \; {& _7 X7 R! v0 Y" ^# f
}  r  m  u+ l: q- t
// N106
# s- i( q; T/ D0 `3 q if( exsound_select & 0x10 ) {
0 [. d7 {: I- {1 N# r n106.SaveState( p );' V7 `! L. K0 w- W% x7 Z
p += (n106.GetStateSize()+15)&(~0x0F); // Padding
, H- W0 }& i, I2 ?' @9 S }% l& Q6 b3 |  [7 F' j
// FME7( A+ D; F1 E. l* ?% s
if( exsound_select & 0x20 ) {+ l* o! M$ q/ ]/ `" I( g
fme7.SaveState( p );- @; w- o! d& }. `
p += (fme7.GetStateSize()+15)&(~0x0F); // Padding$ p( O1 o/ J; ~3 c
}" u* b) N3 ]" c1 M2 s) j/ O  _8 t
& b# O- [- E: ~* v' J2 z" L
#ifdef _DEBUG0 i( Y+ R. }* N/ G% `: N
DEBUGOUT( "SAVE APU SIZE:%d\n", p-pold );
2 u1 S+ D+ U0 Z# y#endif
* y  C3 ]! B; W# P0 Y5 j# [+ Q' Y: n}* D2 {# J, i9 E" r% f

# ~( l- X/ y! F8 \2 j2 s; Xvoid APU::LoadState( LPBYTE p )2 A: h, i1 k& t' Z3 n, @- \
{
0 @. Y) b  x# [7 W% U  |! a. Z& Z // 帪娫幉傪摨婜偝偣傞堊偵徚偡+ D9 @1 z" ~4 ~8 c, F
QueueClear();
5 g" z" O4 o3 A, P+ j, w* L: g7 }9 U0 W4 Z
internal.LoadState( p );
& g% k- y# c$ ^1 t9 l2 P p += (internal.GetStateSize()+15)&(~0x0F); // Padding
7 E0 [$ z3 T) e5 Y
9 G$ b1 J; z/ Z9 p& l" b // VRC6
' V" O; @$ Y8 I4 T, k3 ? if( exsound_select & 0x01 ) {
. C2 ]! S9 t1 |& Q) _ vrc6.LoadState( p );
$ y4 m9 }1 y+ b. c p += (vrc6.GetStateSize()+15)&(~0x0F); // Padding
" t% q7 u7 E8 ?" i }5 @7 @, I6 S0 i& P
// VRC7 (not support)
: M: G$ l4 S- F# q& u if( exsound_select & 0x02 ) {8 F( l7 z7 C! w1 v; s: V
vrc7.LoadState( p );% j! J! z2 V' u- L
p += (vrc7.GetStateSize()+15)&(~0x0F); // Padding
% D/ v% W; j- P  P0 V, L }
' J0 L) ?9 B% { // FDS, Z" G; N6 n  M+ ^; @/ n. r8 T
if( exsound_select & 0x04 ) {/ @! T3 Q0 @4 ~& g& |
fds.LoadState( p );5 W  S3 I2 U2 B- }. r. g4 C* L! f
p += (fds.GetStateSize()+15)&(~0x0F); // Padding9 i: I! E4 C+ ]! D1 a/ x
}. u+ B+ `* d5 S8 z
// MMC5
' x3 c$ W2 R' F$ X% ~5 } if( exsound_select & 0x08 ) {. K; E2 Z/ Z, G* U" M5 i7 j
mmc5.LoadState( p );
( m0 t4 Q. @# j/ { p += (mmc5.GetStateSize()+15)&(~0x0F); // Padding
# \7 k: T- M7 @" u) J& _, l2 \ }1 t) l3 ~7 `7 U/ D
// N106* T5 N: z' Z0 X& l) V; j
if( exsound_select & 0x10 ) {
1 K! _  e! B% [, l% F n106.LoadState( p );
* b) `5 q: A4 ]2 O6 M p += (n106.GetStateSize()+15)&(~0x0F); // Padding& |# g" b4 ]( u# P+ X- N% s, A" M2 {
}& Z! F0 L. _4 @4 n# t5 b
// FME7+ U2 [: [" P( g: S
if( exsound_select & 0x20 ) {
6 x. U* n9 r  g# S7 v  w fme7.LoadState( p );7 \" x8 ^* E& C
p += (fme7.GetStateSize()+15)&(~0x0F); // Padding
* f% @# s' o5 ?" G( L6 {* Y0 p }
7 U- Y5 {& z  d1 v6 Q}

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 + z" W/ I" r( z1 S+ \
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。
0 ^8 C2 C: X$ @ _# b, O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
5 ]; M: d# v2 h4 Q8 x& o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
% T/ k% K; c8 D" ?$ }: O. r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 $ |8 q- Q$ N3 |! E) ~
再次对团长大人和悠悠哥的无私帮助表示感谢~~

不客氣 ^_^

账号		自动登录	找回密码
密码			立即注册

[求助] 【模拟器代码问题】模拟器如何通过代码控制Rom的背景音乐

浏览过的版块