【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
$ @1 ~ M* ^ ]6 E W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。, X) H3 \ Y' Z" X
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~~' [$ B2 w1 v" {5 u( A: b" I6 p
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;
, [# z2 y( ?4 E, r) |3 W/ [. f }
! V- _" o! a, O5 X3 G) Y/ \9 @8 E}2 r9 i3 u- n' ~3 V- j

) J6 X, _: `- g4 g2 VAPU::~APU()
3 i! M( o1 v2 |2 f$ @( [{
' ~5 ~& c- G  g, k( i}5 C( }. u( a6 M5 m, u7 i2 K
) w* ?9 c4 }& w+ r
void APU::SetQueue( INT writetime, WORD addr, BYTE data )
* _5 N3 y: C# C! R- {6 b% {' c{
- `! m* A- a1 ]! Y queue.data[queue.wrptr].time = writetime;, C( s% R- d, Q$ \! \
queue.data[queue.wrptr].addr = addr;$ K- t+ Q3 I- d3 E, p
queue.data[queue.wrptr].data = data;
) k' |9 G/ `; [ queue.wrptr++;
8 ~9 z2 R' o2 @) R$ a queue.wrptr&=QUEUE_LENGTH-1;
+ Q5 z; ]3 v3 P# D if( queue.wrptr == queue.rdptr ) {
0 y  [, K& r- U DEBUGOUT( "queue overflow.\n" );
8 }/ ~6 A+ v, b9 C( K# l }
  B$ @9 T. U& n) e: Y2 W- Q$ `}
3 s( ]/ [9 ?; J1 O; x$ i& d
  Q5 H! j  \# H" W1 @9 LBOOL APU::GetQueue( INT writetime, QUEUEDATA& ret )" X7 y# ~/ V4 y; u4 ]& G7 c7 g
{8 `  o1 b& F  @
if( queue.wrptr == queue.rdptr ) {
% f. a0 D, j$ j- j+ D4 j return FALSE;* b/ L# q% J: g$ K2 q
}
+ O' R1 V' [) M( H" \7 E" h" V" ? if( queue.data[queue.rdptr].time <= writetime ) {7 B0 T0 ?$ R; r; k1 u* |- I' U( L
ret = queue.data[queue.rdptr];
8 G( E9 o2 Z( f& x- Z queue.rdptr++;- r9 {. u) x% L# n8 j, O
queue.rdptr&=QUEUE_LENGTH-1;
# b* W5 A' i, c0 Z return TRUE;- P& G) A* P7 M1 C+ B3 o0 ~8 K
}6 d4 [$ u  s& L3 {
return FALSE;: d$ F- \" H; Q/ \
}; d9 `/ K4 \1 |$ J. J8 N0 h0 c

2 k% z) W# `3 B% fvoid APU::SetExQueue( INT writetime, WORD addr, BYTE data )
$ `3 B8 ?) B9 ]- Y) t{; F4 ]* c3 E; ^9 [
exqueue.data[exqueue.wrptr].time = writetime;
& p4 P1 Z& K/ o( ?, B( u) Y exqueue.data[exqueue.wrptr].addr = addr;
  [! ~8 v7 D2 r exqueue.data[exqueue.wrptr].data = data;/ [5 @4 @: m9 |4 Q* `3 A
exqueue.wrptr++;6 n5 j* h/ j9 ?  d) y
exqueue.wrptr&=QUEUE_LENGTH-1;
4 k( H# ]2 P3 R" V8 v' f$ o if( exqueue.wrptr == exqueue.rdptr ) {
8 Q6 `) w  r+ U. l# q+ b DEBUGOUT( "exqueue overflow.\n" );
, Y0 D7 i2 O! X' K" w5 o( g* I3 v, d }- U' J" v1 f7 B/ E3 I& O. T
}4 H4 T$ C9 S9 i* k! i* @
' J# C5 F, M# h/ c% a) V3 E
BOOL APU::GetExQueue( INT writetime, QUEUEDATA& ret )
; h1 @+ y/ H2 }{
1 F( A+ V/ P  U9 \ if( exqueue.wrptr == exqueue.rdptr ) {
2 H$ v( |5 Z, [  W: h) p) o! C return FALSE;
/ D) ~. @. {. Y* @: ^  ^3 Z' g }" \4 J% U; ^  k/ {% j9 m
if( exqueue.data[exqueue.rdptr].time <= writetime ) {$ U+ P) E  V2 o
ret = exqueue.data[exqueue.rdptr];
: f7 h) b  E/ j" f: V& l6 j" [ exqueue.rdptr++;
5 c: j) Y( p% k, M exqueue.rdptr&=QUEUE_LENGTH-1;
, P& c, ?9 W* @& T  N4 K/ _ return TRUE;
$ h+ [1 m: b; m( [9 i }
9 f- m* {% p7 E- J$ |6 T) |& P2 h return FALSE;
& C7 _& {/ i' a. h' W3 P* d}
7 B" d% P, O$ m0 t$ i7 O$ B6 F7 q2 X+ W+ b- i' _$ c* W7 ~2 v
void APU::QueueClear()+ O! S9 c, h4 \3 }% D
{
& h. A5 Q0 u/ V/ J ZEROMEMORY( &queue, sizeof(queue) );
& Y. g9 _7 b5 D& [ ZEROMEMORY( &exqueue, sizeof(exqueue) );4 x/ H, J6 N) K: \2 K2 [
}
( X7 w& {1 L& w1 }/ T+ i
2 n- G- f) S7 O9 \; g* p8 Zvoid APU::QueueFlush()
& s. a7 [8 }/ f6 d$ u! i% W. U{
; |* J- b) {; P) I7 P, ~9 H while( queue.wrptr != queue.rdptr ) {
# u7 r. s) p& g; N8 Y WriteProcess( queue.data[queue.rdptr].addr, queue.data[queue.rdptr].data );
: D4 R) {8 B5 Z8 T" r0 x queue.rdptr++;
4 S" w: t0 C+ w2 A/ Z  d* z queue.rdptr&=QUEUE_LENGTH-1;7 R& q; ]1 l, I
}
6 j/ v" R4 a* Q% @- S; s
# U) b0 t! v& r% v: D5 z8 t4 P while( exqueue.wrptr != exqueue.rdptr ) {: B( P) q! t# ]( A1 U
WriteExProcess( exqueue.data[exqueue.rdptr].addr, exqueue.data[exqueue.rdptr].data );: {* j: ^5 P4 O# k3 R7 i
exqueue.rdptr++;1 S# F$ H+ B9 J$ n
exqueue.rdptr&=QUEUE_LENGTH-1;! z! U: `5 S3 r" r
}
$ j  O* G- v, W1 r}8 T! v5 e4 u- S! x8 n& m

/ X7 o( I' \# e( Mvoid APU::SoundSetup()
: [7 p) Z. X/ [6 t* N0 {( H{
7 ]- g7 r8 H3 g FLOAT fClock = nes->nescfg->CpuClock;
( K( W5 j+ H. P9 ] INT nRate = (INT)Config.sound.nRate;. G0 e# E; h. m
internal.Setup( fClock, nRate );
" M+ d9 R4 }0 `6 N# @) \+ y0 m vrc6.Setup( fClock, nRate );
1 O7 N; ~& K2 n+ ~) R# ? vrc7.Setup( fClock, nRate );. {. D) r: x) G1 Y$ L7 h
mmc5.Setup( fClock, nRate );
7 k* ~3 c  U6 Y4 e+ k! o* A5 N+ r fds.Setup ( fClock, nRate );
; n8 ~; i  G8 \3 e( w* L; C' W n106.Setup( fClock, nRate );
5 n( H: X* \% ?; Z6 m6 C  O/ p+ ? fme7.Setup( fClock, nRate );3 @# q# f: P& a
}
' Z- _$ K# @( |' R' E- o- S' t8 h! [# i1 D+ K
void APU::Reset()
! b( e% u  m4 t) L( H/ Z{( z) p: {' r! c+ Z# C5 x
ZEROMEMORY( &queue, sizeof(queue) );
- J$ W" v8 Q  y$ s, ^ ZEROMEMORY( &exqueue, sizeof(exqueue) );. }6 \5 ^0 \: [* c2 `. }3 M
8 B0 }4 e9 N9 _' }0 u" ^6 ?
elapsed_time = 0;
# v1 Z! @0 V* i$ K
" U+ k, H+ }  u2 \5 q  }5 Y FLOAT fClock = nes->nescfg->CpuClock;) R6 i# x1 l6 `" T6 ]4 C# A+ N+ `  j+ q+ g
INT nRate = (INT)Config.sound.nRate;
# c% ]* T! \9 C  H9 ]) x$ j- ? internal.Reset( fClock, nRate );
7 S# r! s7 m9 Z" j! I: [/ l. _ vrc6.Reset( fClock, nRate );
# W! d  y6 W- q' k( U+ o6 w vrc7.Reset( fClock, nRate );
+ e+ F4 w* Y3 ^3 m7 `+ M mmc5.Reset( fClock, nRate );' }/ j/ u( l2 i1 \4 a2 |- n% C
fds.Reset ( fClock, nRate );
9 b% H( ~$ ]4 a! S; ?0 R! i n106.Reset( fClock, nRate );; G! i7 n3 k: R& a' v' Q" B1 d
fme7.Reset( fClock, nRate );! n3 X$ `4 x7 M1 H1 i
2 j( {) @8 ^8 ^; ?/ {5 r
SoundSetup();  N, f/ t/ x4 [8 H/ Z
}' {+ E+ g) x6 k; q) v
2 u; T% }- m4 c  C; Y1 ^
void APU::SelectExSound( BYTE data )9 c) C6 l8 Z! ~* h
{5 @/ M: O7 {6 r: {3 N
exsound_select = data;
8 }; z. E1 }$ U' A7 R1 W}
: H; V: v/ D6 b% E/ h
$ R" N6 B5 d, }4 k4 ?BYTE APU::Read( WORD addr )# G+ ~9 {0 K3 H! t$ B  i3 E7 c+ I
{
6 o9 Q4 u  `2 U return internal.SyncRead( addr );
9 P1 }  I/ `+ b8 [}
' j% v. q" p2 w; F" H8 v  g
) I" o: l4 L, [" O8 n7 ovoid APU::Write( WORD addr, BYTE data )
2 ?9 X" g' ^# Q2 ]5 x6 ?{" o/ q! O7 ~  w/ `
// $4018偼VirtuaNES屌桳億乕僩" X) g7 \1 o3 f3 T) ]  H1 T
if( addr >= 0x4000 && addr <= 0x401F ) {# k5 w+ m- F0 q! _% ^
internal.SyncWrite( addr, data );/ W2 r$ i* b" Q; q( D  r
SetQueue( nes->cpu->GetTotalCycles(), addr, data );% \. f( k, o9 y
}
( t1 X* g8 ], Z* a5 }! F) ~( v% W9 w}
/ j8 b4 j2 L! J3 C! n1 G' I9 O8 z; J) {3 L5 }2 P$ n
BYTE APU::ExRead( WORD addr )4 B; B: n0 N; T% d6 t; k0 T1 e9 b
{
! B2 U5 C% X. }. DBYTE data = 0;
! f) z; T! d$ c9 p9 H$ G1 H# b
6 w+ a% k: B2 G if( exsound_select & 0x10 ) {
! G9 O8 Y7 E1 Y  x! N3 a' O! u if( addr == 0x4800 ) {2 M+ O9 b5 s, e, X5 ]9 h; }7 s! G+ a
SetExQueue( nes->cpu->GetTotalCycles(), 0, 0 );$ A* S+ B/ R# v1 O$ o4 a
}
. z/ u; L4 ~% E7 ~4 ?* ~$ K+ F }2 x) G# g1 y; V: h
if( exsound_select & 0x04 ) {4 v- y2 x# M, I+ r9 t3 e  F1 O' g
if( addr >= 0x4040 && addr < 0x4100 ) {6 y; @( r7 S4 i3 R  o; O, K1 Y
data = fds.SyncRead( addr );* d! }' f7 @) i
}! i: z( }( ^6 ?7 g* J9 Z+ X0 f
}
# k5 |7 C/ M& H, }  s1 w/ s if( exsound_select & 0x08 ) {
% C* |4 q  C: o, h# [" B* y' \" ` if( addr >= 0x5000 && addr <= 0x5015 ) {# C( f8 Y* o% K4 H* L7 z
data = mmc5.SyncRead( addr );4 [. O) A& v4 c/ _. ?; M  R/ W2 D
}9 a9 z! Y0 M0 `" y* Y- J) f
}
% g" E- z% f) O5 d0 r4 W2 g  Y* [0 p4 D7 ]+ c) V  b3 C7 R
return data;
/ D! g: w7 G% [' }9 J( U% m! X, b}8 F/ H. {- W. P
+ s) w" S9 i5 H3 Q0 I9 _; P
void APU::ExWrite( WORD addr, BYTE data )7 x  M- l/ r) A( N, q
{5 m9 Z5 x5 ~- D1 k9 c. z
SetExQueue( nes->cpu->GetTotalCycles(), addr, data );" Q3 P8 ^& f  A2 d2 w* r. |5 \( Y

# w$ Q# Q- u4 R if( exsound_select & 0x04 ) {
) Z+ O; P) N' |: Y5 o if( addr >= 0x4040 && addr < 0x4100 ) {6 G. T( b6 g* F' T( N
fds.SyncWrite( addr, data );7 |: Q$ j; Y- M$ Z: F, k
}
: p) A- Y6 _4 T# N% m% z }4 s# z9 U1 C/ \" ]  y( Z& n3 y0 U
' G4 q) S( i$ t# D4 x# B
if( exsound_select & 0x08 ) {. ^2 X+ w* {5 V) w2 V! w
if( addr >= 0x5000 && addr <= 0x5015 ) {2 }# Y+ e+ q4 p' N$ n5 ~5 X) G
mmc5.SyncWrite( addr, data );/ j$ p8 F% J& B
}
+ i- m5 B* C0 W6 W9 N }
( C' }- b5 u& Q}) [8 X# z* |! P+ A( ^

# I: l) X5 c) @$ v5 ~void APU::Sync(), D8 l! D- y/ w4 C! D8 F& C
{
+ B9 j* V* ]' e, @}# l" ?; C& r: P1 j
; E6 o3 _2 w/ R: [1 [  ~; c
void APU::SyncDPCM( INT cycles )2 b, @1 n4 P- m7 L  ~5 u6 s
{
1 ^5 J6 \: \0 @5 Q" a internal.Sync( cycles );
. ?' W. ]. S/ s5 L6 }9 C! [' [; X6 v; q" g# F
if( exsound_select & 0x04 ) {
1 W  F8 f' h  [8 m5 u0 H7 Q0 I) l fds.Sync( cycles );
! x& M1 m. J! { }
9 D' t9 o2 t# E/ E if( exsound_select & 0x08 ) {
, e7 e8 G( B, ^0 l7 Z mmc5.Sync( cycles );
6 V5 }2 \' k  A3 }- |5 l0 e3 G }/ h  U# p6 `7 N1 C- H
}, m9 u7 j! L3 T, r

# D) ^  f7 ~3 N/ ^$ {: x9 dvoid APU::WriteProcess( WORD addr, BYTE data )
( o5 B4 V3 q& p+ I8 p{
( X. {8 M  L! ^5 Y' d. i // $4018偼VirtuaNES屌桳億乕僩
' M; K; Z  C9 @2 W( N if( addr >= 0x4000 && addr <= 0x401F ) {3 A$ m6 U" \  G
internal.Write( addr, data );/ v" f/ w/ ]% c: ]
}
9 ?- t0 w9 }4 [: c}; l5 E- |# h0 A

& a% y6 n; z* E$ n' J& @void APU::WriteExProcess( WORD addr, BYTE data )) M4 B2 s9 @$ h: Y2 T/ r) `
{
5 K. h( o$ k6 A! s' K3 h" q, h if( exsound_select & 0x01 ) {
% R0 G3 |/ S6 t, y vrc6.Write( addr, data );" D& c. D% ^) S
}
8 ^& H8 O8 r, h if( exsound_select & 0x02 ) {
$ \8 g. E  p* E$ `+ P% l  l  x vrc7.Write( addr, data );
6 S2 n& r$ g4 Z- j; q; l5 L }
" _4 R' {8 s" c9 w if( exsound_select & 0x04 ) {
& T' [6 L. U1 u5 H, s( k fds.Write( addr, data );% G* T' O1 {: B9 o4 o) @
}/ R+ I$ @: z- ]# o
if( exsound_select & 0x08 ) {
8 F: |& l4 q# r  ?2 l' q6 o- m/ s mmc5.Write( addr, data );8 @- R: B8 n5 `: C4 _
}
& P. p- ~' z; y; D if( exsound_select & 0x10 ) {0 H- Y/ l; n, n5 r" x
if( addr == 0x0000 ) {  c) B" D, [( x3 d* q& @
BYTE dummy = n106.Read( addr );+ m! J; [4 ]$ k2 {- @- A# }
} else {* k. c' R7 O  ~, T9 Y" D% ]
n106.Write( addr, data );5 e1 w8 J8 M6 J! `0 G1 Y& o# s
}
" Z9 L( R  w* a' l) y }
3 S9 i( r" @0 E! o if( exsound_select & 0x20 ) {( B) z" z) y. g7 z
fme7.Write( addr, data );" ]! q' ]! k  h, |* C
}
" k7 ]. F$ X2 R  P% n0 K" r}1 K! L3 [8 l2 g! a' M

9 O! v3 D( w, S) y. s" l8 ~5 lvoid APU::Process( LPBYTE lpBuffer, DWORD dwSize )0 p9 \/ x0 [8 J. q: t" [& y3 u
{
6 j2 V9 t& [2 Z# wINT nBits = Config.sound.nBits;( h8 O; d  [( F7 Q
DWORD dwLength = dwSize / (nBits/8);
+ q) L& q) w4 X4 \( T+ TINT output;6 `. A! z5 P- ~- ~- x4 p/ ]& F3 x1 e+ k
QUEUEDATA q;
4 N7 M. T0 s$ x6 x9 h' QDWORD writetime;
5 R! ]1 C: ]( v) e( T/ v2 Z6 g% g  y$ i  s# e9 }! N3 K  Z
LPSHORT pSoundBuf = m_SoundBuffer;
! e* y* J8 s5 _# S  S; A! ~% OINT nCcount = 0;4 R! j+ u. k' s( [' D; v" U
+ \5 m: L1 r: N9 w$ Z
INT nFilterType = Config.sound.nFilterType;
3 E/ D. f7 ^, Z+ ~  f1 g% T0 ~; x, I1 e2 X9 u" N) t0 I
if( !Config.sound.bEnable ) {4 X* S# ^/ `3 Z
::FillMemory( lpBuffer, dwSize, (BYTE)(Config.sound.nRate==8?128:0) );
$ }: I, W8 Q9 j8 c" t+ o return;
8 z! _5 M" U( ^; o }4 V8 Y. R9 D, y$ u2 i2 O2 o5 O

8 ]. B' e% H* E' U% B- e: c // Volume setup/ s  Q" i: j  M; J, m
//  0:Master6 y( C* l' b7 {! `6 k
//  1:Rectangle 1
9 \& {* r5 H% O! [) a* G- p //  2:Rectangle 25 o7 X) c- L$ N* e% `: E
//  3:Triangle
2 V9 \' R+ b, ?( L& Z: ^ //  4:Noise
/ |" v2 j& d0 \, e1 S0 y //  5:DPCM* p7 @# Z: X2 d
//  6:VRC6- O/ s+ ~) c$ b/ l) H- x
//  7:VRC7
  r; J8 P. n9 x1 A& t7 e4 Q //  8:FDS
$ p, E2 A& }3 |( E' e7 h8 N/ N //  9:MMC56 p7 i3 j+ I( Y5 |
// 10:N106
3 p/ R$ C8 m4 U // 11:FME7
2 V1 w- u& r9 V( A7 l INT vol[24];
' L- k7 I. g( n: i$ K, ^ BOOL* bMute = m_bMute;% i7 [& G8 D/ v7 d! H0 ^; K: `; v
SHORT* nVolume = Config.sound.nVolume;
* X8 v/ \- w5 V6 H) ?# |1 }7 x. k
! |  U6 a- ?% I8 c INT nMasterVolume = bMute[0]?nVolume[0]:0;
9 @7 j  q7 f8 H( x, Q
8 t* G4 C- g4 L+ k/ T // Internal
2 _5 _2 q, s. ]7 r" Q8 @3 r vol[ 0] = bMute[1]?(RECTANGLE_VOL*nVolume[1]*nMasterVolume)/(100*100):0;$ I4 a, _4 I7 R, k- G8 t% Z9 \2 m4 {
vol[ 1] = bMute[2]?(RECTANGLE_VOL*nVolume[2]*nMasterVolume)/(100*100):0;
) k, v- m' R3 S6 I  j vol[ 2] = bMute[3]?(TRIANGLE_VOL *nVolume[3]*nMasterVolume)/(100*100):0;
6 o: h9 O/ A8 W* j- O. T! o vol[ 3] = bMute[4]?(NOISE_VOL *nVolume[4]*nMasterVolume)/(100*100):0;% l7 s: F. W* M) ?: g* j
vol[ 4] = bMute[5]?(DPCM_VOL    *nVolume[5]*nMasterVolume)/(100*100):0;
2 }) E/ l% I5 B) e, J3 I; Q2 J* V: w+ U* V* O1 k7 P; I
// VRC63 ]& M! L. O5 E& B& \& ]. |
vol[ 5] = bMute[6]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;0 i) w: e% ]- r9 h, ?
vol[ 6] = bMute[7]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;3 E# D' R/ e5 T$ m# P
vol[ 7] = bMute[8]?(VRC6_VOL*nVolume[6]*nMasterVolume)/(100*100):0;: O7 e: b0 H: s4 s' @  A  e

4 p# p1 O- F2 F7 M+ V* V1 U // VRC7  [" Q; g4 R, E# q: `, b3 @
vol[ 8] = bMute[6]?(VRC7_VOL*nVolume[7]*nMasterVolume)/(100*100):0;0 a7 [* G" S/ z4 O0 k5 A
9 n& Z) ^7 X5 `  v2 b: ~7 V
// FDS* W6 f  B0 a3 t# o1 D
vol[ 9] = bMute[6]?(FDS_VOL*nVolume[8]*nMasterVolume)/(100*100):0;
+ P) d4 a6 d" ]- ]9 [
6 i0 w, @; Y5 U6 m# d. T4 V9 v0 @8 n // MMC5
8 j3 ~: |7 M3 @* _ vol[10] = bMute[6]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;$ n  @: v: c! M
vol[11] = bMute[7]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;
) b( f" {: q7 L# D vol[12] = bMute[8]?(MMC5_VOL*nVolume[9]*nMasterVolume)/(100*100):0;
3 X6 U  P" e# v2 C, G, x& N% W5 s
9 V5 X3 X: d4 m" U$ X2 P' O9 c* _ // N106
  @. s/ x! B! a6 a- s vol[13] = bMute[ 6]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;+ M6 `" v! L- U) ^
vol[14] = bMute[ 7]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;$ b4 E4 _; Z/ |0 Y+ c
vol[15] = bMute[ 8]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;6 b/ g) [$ I1 H8 U! O  X: `8 \9 k( r$ p
vol[16] = bMute[ 9]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;9 u' N. Q$ w' q. X. I" b) p
vol[17] = bMute[10]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
/ T( T0 ?- p6 D6 ^6 u# T vol[18] = bMute[11]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
3 I# P" o( E0 @/ f5 T/ Y$ D, J vol[19] = bMute[12]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;, Y( }% U" l" k% s5 ^: ^: H
vol[20] = bMute[13]?(N106_VOL*nVolume[10]*nMasterVolume)/(100*100):0;
# }9 E0 c+ f& T' w, G) ]  L4 P; m9 Q2 J7 x" f; R8 Y
// FME7( {) J3 p: G2 X# \
vol[21] = bMute[6]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;/ P2 B) ]2 f9 o4 x/ H: z
vol[22] = bMute[7]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;6 }9 Y" ^5 r1 N
vol[23] = bMute[8]?(FME7_VOL*nVolume[11]*nMasterVolume)/(100*100):0;
$ C! l0 e4 u7 d1 Q0 T6 H9 u6 l9 F0 s! y: s: P+ {
// double cycle_rate = ((double)FRAME_CYCLES*60.0/12.0)/(double)Config.sound.nRate;6 I+ L, g: t' }" X/ e8 F7 G
double cycle_rate = ((double)nes->nescfg->FrameCycles*60.0/12.0)/(double)Config.sound.nRate;+ T; `( i7 Q8 A+ p' j
0 A1 }3 K" w, E, N
// CPU僒僀僋儖悢偑儖乕僾偟偰偟傑偭偨帪偺懳嶔張棟
- P: \; f7 L3 q! m& P- ~ if( elapsed_time > nes->cpu->GetTotalCycles() ) {% S7 S/ b/ _) u1 k3 z2 r9 R1 s/ }. e
QueueFlush();
) G/ x, H2 e) [% Y+ O2 w }
/ a& w+ Y7 R( V5 A9 f3 Q7 F, y9 K5 M) i# p" d& S* A7 W; G
while( dwLength-- ) {) O! R: a# i2 f( Y! U9 U
writetime = (DWORD)elapsed_time;
/ U9 @; v+ y' _, d) c, }
# t# n6 R1 b( m, F1 ^1 s  v while( GetQueue( writetime, q ) ) {
" P0 I+ I& x' t WriteProcess( q.addr, q.data );7 R9 @- p8 b% _+ A
}% e1 t. Q+ D! f0 ~
# ^& p, s# l4 f) r9 E
while( GetExQueue( writetime, q ) ) {
: c- }6 q7 O- s* F! B$ r- P& N6 O WriteExProcess( q.addr, q.data );; {! N) c# c$ p/ I# T  o* b& k
}6 B* o4 z/ n- z2 Y$ e

6 f$ h/ b' g( p9 t! g // 0-4:internal 5-7:VRC6 8:VRC7 9:FDS 10-12:MMC5 13-20:N106 21-23:FME7& L, `8 R/ M: q2 |+ `3 M: }
output = 0;! i% o; \) `0 e1 y5 Q
output += internal.Process( 0 )*vol[0];
! w. u) S. r" {6 b$ S$ ~ output += internal.Process( 1 )*vol[1];- X& S' F, ~* U" M
output += internal.Process( 2 )*vol[2];
* {7 w/ \4 f0 [ output += internal.Process( 3 )*vol[3];# Q7 E( H! O0 }7 Z
output += internal.Process( 4 )*vol[4];
+ z4 Y7 k, c8 Q7 ~* |' r0 I% S2 g, j( G, |
if( exsound_select & 0x01 ) {0 ]0 q  |1 p" l2 V% s" N
output += vrc6.Process( 0 )*vol[5];
6 a: }4 q3 B; b) C6 x+ g% r output += vrc6.Process( 1 )*vol[6];% l, h- A; i' N9 C
output += vrc6.Process( 2 )*vol[7];
" g$ |: s, o1 C+ D/ v2 s }4 z2 p. o3 c' a* A
if( exsound_select & 0x02 ) {
; c$ g6 ^; g4 t output += vrc7.Process( 0 )*vol[8];- ~% T, a  V. y# Q: d& d
}
3 J* U9 F0 Q2 u5 Y if( exsound_select & 0x04 ) {
9 t& A# ?7 q+ T6 J: V output += fds.Process( 0 )*vol[9];
9 |6 }: @- [1 Y1 J/ c( ~6 u }
+ P/ F. G! L# b; K) n if( exsound_select & 0x08 ) {0 W" l4 N7 O) e+ q: `
output += mmc5.Process( 0 )*vol[10];
+ b6 ~, |  ?- P2 x5 n output += mmc5.Process( 1 )*vol[11];
+ c" D6 l! M3 D  @  c. c* K3 P output += mmc5.Process( 2 )*vol[12];- A7 K' M( |! I1 ~5 h0 ~$ ]7 `
}8 a& l& f& }9 a/ H, ]: l2 g
if( exsound_select & 0x10 ) {
( ^; g' B; q7 ^( x3 s8 J  s output += n106.Process( 0 )*vol[13];
* w, f, [) W. `: C output += n106.Process( 1 )*vol[14];
7 W, ~+ X8 u/ L3 |9 v- b4 ^( K output += n106.Process( 2 )*vol[15];1 c5 [7 |2 w; [, a' T+ L# v
output += n106.Process( 3 )*vol[16];
( f4 R/ \) S0 p* `: Q% j2 ~ output += n106.Process( 4 )*vol[17];6 N! M) x2 N( \
output += n106.Process( 5 )*vol[18];% T9 ~5 G3 R6 P& Y  Z  |, a
output += n106.Process( 6 )*vol[19];# k$ r; p2 m4 j0 [
output += n106.Process( 7 )*vol[20];- Y( V1 J% z' x, p; W% g) N
}: H, {& B/ U: n! L* U
if( exsound_select & 0x20 ) {
" M1 u) x# Y, C: K! y fme7.Process( 3 ); // Envelope & Noise
/ b/ h* s$ w4 r- o# m output += fme7.Process( 0 )*vol[21];! r! F3 B- i2 Y4 j4 N
output += fme7.Process( 1 )*vol[22];$ |- E% l6 H# \
output += fme7.Process( 2 )*vol[23];
0 K2 p' x& W8 Z7 ]4 ? }
4 c9 ~. g2 \  _: Q) N; t' J
) c; f0 _  l4 h7 m- G$ P% G output >>= 8;& r; p7 p& T, l; h
( y* Q! V! }& J7 T4 d
if( nFilterType == 1 ) {: Y  K, q) O- }* f2 z8 `: S& D7 |
//儘乕僷僗僼傿儖僞乕TYPE 1(Simple)
  Y' d! d8 V+ M$ t5 W+ O output = (lowpass_filter[0]+output)/2;$ J& l' a' v  ~' \3 Y: B" i1 W+ r2 o- ]
lowpass_filter[0] = output;) K1 ?; V: M4 v' v( \
} else if( nFilterType == 2 ) {
- o; L6 a2 H6 s- Q //儘乕僷僗僼傿儖僞乕TYPE 2(Weighted type 1)
" R: W+ |; o; V* T/ i- W) q output = (lowpass_filter[1]+lowpass_filter[0]+output)/3;
9 T; a) x: [7 n7 P lowpass_filter[1] = lowpass_filter[0];( `: M* \/ u3 ^/ v
lowpass_filter[0] = output;" ]/ e) D7 H$ w6 N7 B# y. @( W
} else if( nFilterType == 3 ) {) W5 P1 t  h$ y: @8 s) ^% p
//儘乕僷僗僼傿儖僞乕TYPE 3(Weighted type 2)
: d" J' j; b! z0 J output = (lowpass_filter[2]+lowpass_filter[1]+lowpass_filter[0]+output)/4;$ o1 o( f: z+ E% q2 {" z" s
lowpass_filter[2] = lowpass_filter[1];& R8 x( U5 ~0 m
lowpass_filter[1] = lowpass_filter[0];- y( t4 P1 l5 @! u& v  A; W* ^
lowpass_filter[0] = output;" H! e, \, y4 w8 y
} else if( nFilterType == 4 ) {
! B7 o( ]* t) I; k7 @ //儘乕僷僗僼傿儖僞乕TYPE 4(Weighted type 3)
: N" V2 j5 V% H! m7 _6 P" i output = (lowpass_filter[1]+lowpass_filter[0]*2+output)/4;
( j$ ~9 T% r3 b lowpass_filter[1] = lowpass_filter[0];
& f" f  _# r6 E) O4 ]6 y lowpass_filter[0] = output;
9 P6 h) x. E' y }
: ~) F4 k9 |9 c4 V4 M6 L' E- p4 `$ r( ]% i: |' S$ u
#if 0
  `" z' Z7 L3 L5 D: b" n: P" ^ // DC惉暘偺僇僢僩
! P+ a1 S; M2 Q% y {2 N9 z* {# [) s
static double ave = 0.0, max=0.0, min=0.0;
! ~0 T. q  g1 W  t" `4 @& ? double delta;
" i0 K" w1 o; @ delta = (max-min)/32768.0;
. h2 x+ n4 R9 W) T# y max -= delta;
$ f% l8 l: m, a$ Q9 a2 A+ k min += delta;1 q' @6 K* N! y3 T
if( output > max ) max = output;
" N- s0 ~" n2 a$ @ if( output < min ) min = output;
3 w" o; p  X, } ave -= ave/1024.0;
+ N9 ]0 a4 g/ o ave += (max+min)/2048.0;
1 J5 c4 e- _2 V, r' W0 w" X$ R1 F! q output -= (INT)ave;
+ ^1 L0 _, [/ t }
4 Z. e8 P- z3 P( w& h3 Y#endif
3 x4 V% p# _1 p0 P#if 1
4 z1 T, `- o0 M$ e  ]8 ` // DC惉暘偺僇僢僩(HPF TEST)
; [# `; X4 _- d: C4 y9 F, ~ {; S* d8 Y2 Y) x: X6 \# P
// static double cutoff = (2.0*3.141592653579*40.0/44100.0);" j+ h+ S/ s7 I# [3 I* j
static double cutofftemp = (2.0*3.141592653579*40.0);
6 a+ B3 F! Z  L, C- L double cutoff = cutofftemp/(double)Config.sound.nRate;! B* M5 p% J; T* M$ w( ~2 K
static double tmp = 0.0;4 S9 j  `4 {% f. ?
double in, out;2 @- q2 `$ j8 i# i5 z, J

% d- P% ^8 E1 {9 m. | in = (double)output;& ~  h1 x; v& g3 z" G+ [& j
out = (in - tmp);% E* q0 }' z  o
tmp = tmp + cutoff * out;
9 e9 C+ {1 d# U. M0 X/ m6 d  i4 ?9 _+ M, r
output = (INT)out;( p$ i8 K9 @) F" q4 h
}: b4 h" d; m) Q4 T
#endif
) j3 D# q9 L' Z) j#if 0# \, K) ~9 j6 L* Z* J( }7 @
// 僗僷僀僋僲僀僘偺彍嫀(AGC TEST)2 Z7 C( B. v5 S' S
{7 A6 O3 a; d& w$ |* W( a
INT diff = abs(output-last_data);, J4 p, L  M0 J
if( diff > 0x4000 ) {& l: ~& |& G! e6 u2 ?
output /= 4;" U9 T2 {) d' P* a. c
} else , U$ [3 c8 u& O* d! g, B+ `% Q
if( diff > 0x3000 ) {0 b) g( P! ~& ~' @1 a7 d5 i$ X% X! f
output /= 3;4 j$ o$ v5 ]* [- H; d* P: @
} else
7 r4 D  f: z. @3 L# J0 m. X% d if( diff > 0x2000 ) {
5 k6 O8 e# X0 L3 E output /= 2;! S+ Z. u' ?1 e8 \
}; W% X, C; x- e: |
last_data = output;& {$ Y# W2 `1 ^8 r  N, R" u9 L
}
+ U" }0 c" [( Z9 S8 I5 e#endif; m/ L1 E5 D% y' g! D  H" M
// Limit
) d) o- W! m3 O( @! _$ b# s if( output > 0x7FFF ) {* D; ^/ U$ A. ^# \
output = 0x7FFF;2 r( n; U1 Q4 Y+ |2 [* ^, n6 i
} else if( output < -0x8000 ) {
3 r8 d* H3 X4 h, v& ]* L  h output = -0x8000;% v9 j) c4 v. a8 ?" v6 W
}* S; H  r. U4 ^5 v
* b$ b+ ]0 s9 \
if( nBits != 8 ) {) ^% ]$ R! B% @6 p' ~
*(SHORT*)lpBuffer = (SHORT)output;1 x! H2 V- Z# F" r1 U, F5 d
lpBuffer += sizeof(SHORT);
7 `0 o5 l) t% X$ r" E) k9 ^" c } else {
; Q) M! Y1 ?- |, d6 I *lpBuffer++ = (output>>8)^0x80;' i* n( v7 m9 N; S9 n
}: K' n1 Y0 u8 e" k9 a
% p! ~0 c$ [; }3 G$ P* t5 V; Y
if( nCcount < 0x0100 )  u( {: ?! r* `# x
pSoundBuf[nCcount++] = (SHORT)output;
. J7 `7 R3 A# _2 U& R
9 O) V2 k1 q4 [" J( e. e// elapsedtime += cycle_rate;& W( }3 f4 J+ |6 t9 w  u  V
elapsed_time += cycle_rate;" h. m' Y$ I# D
}
% @1 N( H: E8 Q; h, H: t, W, T
* `! H1 U0 d# t#if 1
+ j; E: u8 r' _$ v6 B+ V if( elapsed_time > ((nes->nescfg->FrameCycles/24)+nes->cpu->GetTotalCycles()) ) {
% W% M8 a) t4 w; Z) z' R elapsed_time = nes->cpu->GetTotalCycles();0 O- M1 b2 S  B
}; b' r. T; I/ C; i
if( (elapsed_time+(nes->nescfg->FrameCycles/6)) < nes->cpu->GetTotalCycles() ) {
, }9 I# f5 R* _$ D3 D elapsed_time = nes->cpu->GetTotalCycles();
/ n2 k! Q4 F' a( z' ^ }, \' ^% [7 |$ ?2 n  r
#else, I$ e; S7 }% J+ u- G+ N: J
elapsed_time = nes->cpu->GetTotalCycles();
7 Y6 A( r* {9 m8 S  m4 |6 a#endif
  k  s; h  W7 @) H0 n$ [}: l8 U5 _% O0 K( v7 A
" B9 u2 Z" V/ b9 h4 K
// 僠儍儞僱儖偺廃攇悢庢摼僒僽儖乕僠儞(NSF梡)
6 m# N* m( C, LINT APU::GetChannelFrequency( INT no )" \  D( M9 W8 T
{
# C- `; {  P0 N) t( o if( !m_bMute[0] )
. L* b6 s6 x- t! Z- X return 0;! A# s0 g  n0 \

6 ^% `+ s9 P+ u8 S0 B$ ] // Internal# U6 `7 e) H7 C% Z. W; n8 w/ N! c
if( no < 5 ) {4 F% C& `3 ?9 r) o2 |  N
return m_bMute[no+1]?internal.GetFreq( no ):0;  N9 W; r2 t% a+ y2 U7 Z
}: @3 c! D3 f' P9 M! l+ b3 D
// VRC6
  w0 f- {0 O3 f7 N if( (exsound_select & 0x01) && no >= 0x0100 && no < 0x0103 ) {  j$ p2 E; u: E) u/ m4 v# T9 r: N
return m_bMute[6+(no&0x03)]?vrc6.GetFreq( no & 0x03 ):0;
- E) [2 P( ~9 I: i0 }% O( s2 H* U }
' k( a) r8 ?: d) O' y5 c // FDS( [, B8 l8 Y" j: k- H7 M2 H
if( (exsound_select & 0x04) && no == 0x300 ) {
1 X. }! d/ W5 F( x return m_bMute[6]?fds.GetFreq( 0 ):0;
' A- P- I8 \" k- w+ O }7 t3 B: K  H) K5 b
// MMC5
% L$ J; K4 }! D# Z1 p" s' n# n) R if( (exsound_select & 0x08) && no >= 0x0400 && no < 0x0402 ) {8 b( B1 P$ ~5 O( n/ q- d9 T$ P
return m_bMute[6+(no&0x03)]?mmc5.GetFreq( no & 0x03 ):0;
$ `; K) {2 B* G) ~* ^ }8 ?1 w* R# h- @+ `2 V
// N106
7 e0 K9 a! U; D, _% y8 {. F if( (exsound_select & 0x10) && no >= 0x0500 && no < 0x0508 ) {
% M3 U. g4 L! l! v6 \$ h: ~9 k* f return m_bMute[6+(no&0x07)]?n106.GetFreq( no & 0x07 ):0;  p; i: o. E6 _. k5 @- @5 \9 q3 Z( m3 v
}+ X' M8 u% J% s9 U- @& W2 R+ z* `
// FME7
4 ?0 g: Q& p5 w; I8 m! ~( ?& i2 \. D if( (exsound_select & 0x20) && no >= 0x0600 && no < 0x0603 ) {8 r0 ?0 w5 w) c+ n( c+ B. i# Y
return m_bMute[6+(no&0x03)]?fme7.GetFreq( no & 0x03 ):0;# i) }  m3 c5 M5 o' l3 J
}5 M" A9 p( f7 j( x6 c
// VRC7) Q* c9 p1 r' P& j
if( (exsound_select & 0x02) && no >= 0x0700 && no < 0x0709 ) {
5 D+ G* ^! k: h7 j- F& H5 l0 X4 K return m_bMute[6]?vrc7.GetFreq(no&0x0F):0;+ {2 w' e/ [' d: g" W8 L1 w
}, [/ y, [/ a+ v
return 0;
6 l: w2 S5 Z/ ?. k6 \0 A  a}8 P% i$ S! I, s' X

  k: [/ w5 o4 N/ `  G// State Save/Load
* o: m% I9 w, z& d. s6 p( k! evoid APU::SaveState( LPBYTE p )7 |! v+ C. C1 L2 @6 `/ J
{
2 y9 ]! w. C. {  x#ifdef _DEBUG
4 O- Z6 q4 y& X) v4 ~: T6 b# ZLPBYTE pold = p;
1 e! p1 C1 x6 N  O#endif
  i4 `9 t; |1 h# H4 q) b  J3 j7 Y4 \) Z! I/ W+ q) ]4 k
// 帪娫幉傪摨婜偝偣傞堊Flush偡傞$ g* G0 ^9 C1 i# E7 O. V
QueueFlush();1 D  v3 W' s: C5 t( p4 Q" C3 d7 c& f1 l

) l( _+ u# `- C: ~ internal.SaveState( p );- N% S8 f; b7 `: Y
p += (internal.GetStateSize()+15)&(~0x0F); // Padding
$ E* E: i- V. a0 l" B6 w# n4 z0 K/ n
// VRC6
  }: Z5 ^6 T0 W% w: W- g if( exsound_select & 0x01 ) {
1 _2 J( k! ]: e$ ?* t vrc6.SaveState( p );* M5 T: B" h' m* t
p += (vrc6.GetStateSize()+15)&(~0x0F); // Padding1 H" A* U! @7 l$ j
}
, N: R5 I, q1 N( D; w // VRC7 (not support)3 h) }4 W. w& L# O- U9 W
if( exsound_select & 0x02 ) {
* i& g2 F* b2 J( c vrc7.SaveState( p );. O! \( c% ^, {: q! @) r
p += (vrc7.GetStateSize()+15)&(~0x0F); // Padding
4 m( E& z2 p4 ^8 x9 t2 L$ T }
) s+ m$ l+ w8 }+ ~% @* h // FDS
- o4 ^6 D2 N2 E4 Q7 J if( exsound_select & 0x04 ) {
& a7 s( [9 Y) p6 b fds.SaveState( p );
0 j0 D. [2 T8 P) e3 I6 U* l: h: S p += (fds.GetStateSize()+15)&(~0x0F); // Padding2 m) X5 v+ S0 _9 B5 U" p7 U
}. y# u" J* `+ y: D
// MMC5
& }1 ?- f7 @) E3 p) K if( exsound_select & 0x08 ) {
# v! X, O" Y* S* H& j, k; a0 t+ | mmc5.SaveState( p );
6 Y% k% M. G# o2 b6 W1 m p += (mmc5.GetStateSize()+15)&(~0x0F); // Padding
8 F- C: w& x3 Y+ f4 u* t3 i5 a }5 _* Z  J  v) t, e
// N1069 }& e/ Q4 v2 F7 c7 t! a" `
if( exsound_select & 0x10 ) {
( u7 S8 k! c( m7 X n106.SaveState( p );
) U% i" @# e0 \% e p += (n106.GetStateSize()+15)&(~0x0F); // Padding, r) P/ h8 ?- J4 i3 Z3 e1 q
}+ ^" ]7 a, o9 M8 W! t. C6 {' C( x  }
// FME73 N  a1 i4 Q; k
if( exsound_select & 0x20 ) {
6 L& ^) y' P. T0 q" M& j7 d$ w# f fme7.SaveState( p );% N5 V" Z5 ?9 @9 x" \4 \
p += (fme7.GetStateSize()+15)&(~0x0F); // Padding. y7 R4 O2 Q' b% ?3 |" W
}
: i8 R& n8 Z  A! G3 _+ T- D7 z3 S, |; u0 |; q
#ifdef _DEBUG
- q) Z6 Q0 b; `% E" w. T. b1 WDEBUGOUT( "SAVE APU SIZE:%d\n", p-pold );5 i5 t; F! f8 g2 w1 \
#endif
) B2 K; V2 ?# h2 V}* I; Y" ^9 [: A
$ T! a- P2 Z/ G
void APU::LoadState( LPBYTE p )/ `1 @1 a5 s. r; g, N7 m; F
{
, ?( |! `9 d( v1 Y5 e" y1 o, E3 c // 帪娫幉傪摨婜偝偣傞堊偵徚偡
/ `" l5 s  ~  X6 ` QueueClear();
. n* _7 ^4 q9 h( T5 b
6 Z8 ]' Q- O  N3 K* D* B4 V internal.LoadState( p );" f2 p0 S" }6 l5 d  ?
p += (internal.GetStateSize()+15)&(~0x0F); // Padding
- V6 w5 W* R7 e  B1 j( j
  J" v/ u% R/ S5 w$ Z9 d- N; ]$ t // VRC67 f5 y' \5 ^0 ?+ b& C
if( exsound_select & 0x01 ) {
5 k& N& G- b' V8 I4 D: O vrc6.LoadState( p );6 y5 S! x* o- F7 Q/ C
p += (vrc6.GetStateSize()+15)&(~0x0F); // Padding, V1 J# l8 w3 ^9 Z& U+ D$ ]
}2 o4 o, _- X' n: D9 h
// VRC7 (not support)
) s1 M% p4 ^: S9 N% M% k: T6 e if( exsound_select & 0x02 ) {
! D1 ?3 n& y4 c( e( B; J0 U) B: V vrc7.LoadState( p );, W0 y# a6 N8 x4 f% ^3 i
p += (vrc7.GetStateSize()+15)&(~0x0F); // Padding, l% E9 c6 B6 B7 N* O7 O6 B  a+ Q
}: w6 f; _0 \6 ~
// FDS
1 Z; z8 y0 ?6 y if( exsound_select & 0x04 ) {2 Z. D$ o! K- Z" g
fds.LoadState( p );* [4 G( W/ v6 P
p += (fds.GetStateSize()+15)&(~0x0F); // Padding
2 C/ \9 r9 h1 A3 p) U9 r }
4 ^2 S+ _4 v+ i5 U9 T1 V // MMC5
/ ^+ G: {: G0 w if( exsound_select & 0x08 ) {
# Y0 z( L, m3 u mmc5.LoadState( p );
* Z4 U' r- p7 f# c- o$ F* s0 i* ^ p += (mmc5.GetStateSize()+15)&(~0x0F); // Padding5 `6 Y# G. K8 r6 m7 X7 Q- B5 J
}# \/ s' W' L4 D$ S7 i
// N106
# R1 v  {7 z" ~8 z: J$ w if( exsound_select & 0x10 ) {& ?3 Y* u/ J% Q9 V
n106.LoadState( p );" C) U; r# J+ e5 }+ }$ @- Z/ [* n2 Z
p += (n106.GetStateSize()+15)&(~0x0F); // Padding8 ^* k9 \, t, l! ~" @
}  I. c% C; G2 t9 ?6 C* x
// FME75 R: Y* f: ~- D
if( exsound_select & 0x20 ) {4 T7 |( o/ I1 s0 ~$ ]6 _) ]2 N, P
fme7.LoadState( p );
  P( `# B0 V4 k: ]( x& d. X  i p += (fme7.GetStateSize()+15)&(~0x0F); // Padding6 p0 ?+ y8 x* d1 _
}
2 ]; @/ f" y/ e1 {' j. J3 O}

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
% P' b0 B& S3 N! a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。/ P5 L0 T' q- P* x% p
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
# o- d7 R" l9 U# v2 d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
9 @5 T% i3 p1 I( p; e) v. 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
! {5 a6 L/ V( |7 }6 H$ J4 t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