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OPL3.PAS
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unit OPL3;
interface
uses Trans;
const Frekvencie : array[1..24] of real =(
16.352,17.324,18.354,19.445,20.601,21.826,23.124,24.499,25.956,
27.500,29.135,30.867,32.703,34.648,36.708,38.890,41.203,43.653,
46.249,48.999,51.913,55.000,58.270,61.735);
const MenaNot : array[1..24] of string =(
'c','c#','d','d#','e','f','f#','g','g#','a',
'a#','h','c1','c#1','d1','d#1','e1','f1','f#1',
'g1','g#1','a1','a#1','h1');
type Operator = record
Tremolo : byte; {0 = OFF, 1 = ON}
Vibrato : byte; {0 = OFF, 1 = ON}
Sus : byte; {0 = OFF, 1 = ON}
KSR : byte; {0 = OFF, 1 = ON}
FMul : byte;
KSL : byte;
Level : byte;
Attack : byte;
Decay : byte;
Sustain : byte;
Release : byte;
WaveForm : byte;
end;
Pair = record
Opers : array[1..2] of Operator;
FeedFact : byte;
RL : byte; {0 = Center, 1 = Right, 2 = Left}
end;
Polana2Inst = record
Name : string[16];
NumOp : byte; {pocet operatorov == 2}
NoteSel : byte; {0 = OFF, 1 = ON}
TremDepth : byte; {0 = 1, 1 = 4.8}
VibDepth : byte; {0 = 7, 1 = 14}
FeedType : byte;
PercMode : byte; {0 = OFF, 1 = ON}
PercChan : byte;
{ PercInst : byte; {0 = BD, 1 = SD, 2 = TT, 3 = CY, 4 = HH}
Ops : Pair;
end;
Polana4Inst = record
Name : string[16];
NumOp : byte; {pocet operatorov == 4}
NoteSel : byte; {0 = OFF, 1 = ON}
TremDepth : byte; {0 = 1, 1 = 4.8}
VibDepth : byte; {0 = 7, 1 = 14}
FeedType : byte;
PercMode : byte; {0 = OFF, 1 = ON}
PercChan : byte;
Ops : array[1..2] of Pair;
end;
PiHeader = record
ID : string[3]; {'Pi '}
Res1 : byte;
Res2 : byte;
InstNum : word; {pocet instrumentov}
end;
type Chan_4_Op = array[1..4] of word; {offsety operatorov v 4-op kanali}
Chan_2_Op = array[1..2] of word; {offsety operatorov v 2-op kanali}
Perku_Op = word; {offset pre perkusie [okrem DB]}
Kanal = record
Meno : string[15];
ID : byte; {1=2op, 2=4op}
kanal : byte; {cislo kanalu}
end;
{--------------------------+-------------------------}
{ <1.sada> | <2.sada> }
{--------------------------+-------------------------}
{ 3 x 4-op kanaly | 3 x 4-op kanaly }
{ alebo | + }
{ 6 x 2-op kanaly | 3 x 2-op kanaly }
{ + | }
{ 1 x 2-op kanal \_ | alebo }
{ 4 x 1-op kanaly / | | }
{ perkusie _| | 9 x 2-op kanaly }
{ alebo | }
{ 3 x 2-op kanaly | }
{--------------------------+-------------------------}
{ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»}
{º OPERATORY & KANALY º}
{ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ}
{offsety vsetkych 36 operatorov}
const Operatory : array[1..36] of word =(
$00,$01,$02,$03,$04,$05,$08,$09,$0A,$0B,$0C,$0D,$10,$11,$12,$13,$14,
$15,$100,$101,$102,$103,$104,$105,$108,$109,$10A,$10B,$10C,$10D,$110,
$111,$112,$113,$114,$115);
{6 x 4-op kanal}
{operatory moznych 4-op kanalov}
CH4OP : array[1..6,1..4] of byte =(
(1, 4, 7, 10),(2, 5, 8, 11),
(3, 6, 9, 12),(19,22,25,28),
(20,23,26,29),(21,24,27,30));
{18 x 2-op kanal (+ 3 x 2-op kanal bez perkusii)}
{operatory moznych 2-op kanalov}
CH2OP : array[1..18,1..2] of byte =(
(31,34),(32,35),(33,36),(1,4),(7,10),
(2,5),(8,11),(3,6),(9,12),(19,22),
(25,28),(20,23),(26,29),(21,24),(27,30),
(13,16),(14,17),(15,18));
{5 x perkusie}
Bass : Chan_2_Op = (13,16);
Snare : Perku_Op = 17;
Tom : Perku_Op = 15;
Cymbal : Perku_Op = 18;
Hi_Hat : Perku_Op = 14;
const SynthModes : array[1..9,1..4] of byte =(
(1,0,0,0),(0,0,0,0),(0,0,0,0),(1,0,0,0),(0,1,0,0),
(1,1,0,0),(0,0,0,0),(0,0,0,0),(0,0,0,0));
{ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ}
function OPLdetect:byte; {vracia kod > 0=nic, 1=OPL2, 2=OPL3}
function GetSBport : word; {vrati port SB kompatibilnej karty}
procedure InitOPL; {inicializuje premenne}
function Get2ChFree: byte; {vrati pocet volnych 2-op kanalov}
function Get4ChFree: byte; {vrati pocet volnych 4-op kanalov}
function Act2opChanell(Name:string):boolean; {aktivuje 2-op kanal}
function Act4opChanell(Name:string):boolean; {aktivuje 4-op kanal}
function Deact2opChanell(Name:string):boolean; {deaktivuje 2-op kanal}
function Deact4opChanell(Name:string):boolean; {deaktivuje 4-op kanal}
function GetFreq(Meno:string):real;
procedure Set4Sound(CHname:string; Instr : Polana4Inst); {vlozi do kanala zvuk}
procedure Play4Sound(CHname:string;Freq:real;octave:byte);
procedure Stop4Sound(CHname:string);
procedure Set2Sound(CHname:string; Instr : Polana2Inst); {vlozi do kanala zvuk}
procedure Play2Sound(CHname:string;Freq:real;octave:byte);
procedure Stop2Sound(CHname:string);
implementation
var FMport : word; {port zvukovaj karty}
OpJeFree: array[1..36] of boolean; {je operator volny ?}
Active2Ch : byte; {aktivnych 2-op kanalov}
Active4Ch : byte; {aktivnych 4-op kanalov}
PerkActiv : boolean; {su perkusie aktivne ?}
O2Kanal : array[1..18] of Kanal; {2-op kanaly}
O4Kanal : array[1..6] of Kanal; {4-op kanaly}
delay1 : integer; {pauza po zapise registru}
delay2 : integer; {pauza po zapise dat}
OPL3ex : boolean; {OPL3 ext.}
OP4BYTE : byte; {aktivita 4-op kanalov v reg 4 2.sady}
function GetFreq(Meno:string):real;
var prem : byte;
begin
for prem := 1 to 24 do
if Meno = MenaNot[prem] then GetFreq:=Frekvencie[prem];
end;
{zapis dat do jedneho z registrov FM-karty}
procedure FMwriteReg(reg : word; data : byte);assembler;
label out1,loop1,loop2;
asm
mov dx,FMport
mov ax,reg
or ah,ah { horny byte nenulovy - druha sada}
jz out1
inc dx
inc dx
out1:
out dx,al
mov cx,delay1
loop1: { delay between writes}
in al,dx
loop loop1
inc dx
mov al,data
out dx,al
dec dx
mov cx,delay2
loop2: { delay after data write}
in al,dx
loop loop2
end;
function OPLdetect:byte;
var s1,s2,prem : byte;
pokus : byte;
label este_raz;
begin
pokus := 1;
delay1:=12;delay2:=32;
FMport := GetSBport;
if FMport = 0 then begin
writeln('SB card not found.');
halt;
end;
{ writeln;}
{ writeln('SB karta na adrese : ',DectoHex(FMPort),'H');}
este_raz:
OPLdetect := 0;
FMwriteReg(4, $60);
FMwriteReg(4, $80);
s1 := Port[FMport];
FMwriteReg(2, $ff);
FMwriteReg(4, $21);
for prem := 0 to 130 do
s2 := port[FMPort];
s2 := Port[FMport];
FMwriteReg(4, $60);
FMwriteReg(4, $80);
if (s1 = 0) and (s2 = $c0) then { ak OPL2 = true , pokracuj}
begin
OPLdetect := 1;
s1 := port[FMport];
if s1 and 6 = 0 then OPLdetect := 2;
end
else if (OPLdetect = 0) and (pokus = 1) then
begin
pokus := pokus + 1;
FMport := $388;
goto este_raz;
end;
end;
function GetSBport : word; {Vrati port SB kompatibilnej karty}
var BPORT, XPORT : word;
WPORT, RPORT : word;
APORT, READY : word;
loopctr, bytik : byte;
label dalej;
begin
BPORT := $210; XPORT := $216;
WPORT := $21C; RPORT := $21A;
APORT := $21E;
repeat;
Port[XPORT] := 1;
for loopctr:=1 to 180 do;
Port[XPORT] := 0;
loopctr := 0;
repeat
bytik := Port[RPORT];
loopctr := loopctr + 1;
if bytik = $aa then goto dalej;
until loopctr > 100;
if bytik <> $aa then
begin
BPORT := BPORT + $10; XPORT := XPORT + $10;
WPORT := WPORT + $10; RPORT := RPORT + $10;
APORT := APORT + $10;
end;
if bytik = $aa then goto dalej;
until RPORT = $270;
dalej:
if BPORT = $270 then GetSBport := 0
else GetSBport := BPORT;
end;
procedure InitOPL; {inicializuje premenne}
var oper : byte;
prem:integer;
begin
if OPLdetect = 2 then {OPL3}
begin
delay1 := 2; delay2 := 12;
for prem := 1 to $f5 do
FMWriteReg(prem, 0);
for prem := 100 to $1f5 do
FMWriteReg(prem, 0);
FMwriteReg($105, 1); {OPL3 ext.}
OPL3ex:=true;
for oper := 1 to 36 do OpJeFree[oper]:=true;
end
else if OPLdetect = 1 then {OPL2}
begin
for prem := 1 to $f5 do
FMWriteReg(prem, 0);
OPL3ex:=false;
delay1 := 6; delay2 := 36;
for oper := 1 to 18 do OpJeFree[oper]:=true;
end
else begin
write('Error: OPL3 chip not found!');
halt;
end;
Active2Ch := 0;
Active4Ch := 0;
PerkActiv := false;
OP4BYTE := $ff;
FMwriteReg($104, OP4BYTE);
end;
{ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»}
{º AKTIVACIA & DEAKTIVACIA KANALOV º}
{ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ}
function IsFree2(kanal:byte):boolean; {zisti ci je dany 2-op kanal volny}
var oper,prem : byte;
volnych_op : byte;
begin
IsFree2 := false;
volnych_op := 0;
for prem:=1 to 2 do
if OpJeFree[CH2OP[kanal,prem]] then
volnych_op := volnych_op + 1;
if volnych_op = 2 then IsFree2 := true;
end;
function IsFree4(kanal:byte):boolean; {zisti ci je dany 4-op kanal volny}
var oper,prem : byte;
volnych_op : byte;
begin
IsFree4 := false;
volnych_op := 0;
for prem:=1 to 4 do
if OpJeFree[CH4OP[kanal,prem]] then
volnych_op := volnych_op + 1;
if volnych_op = 4 then IsFree4 := true;
end;
function Get4ChFree: byte; {vrati pocet volnych 4-op kanalov}
var volnych : byte;
kanal : byte;
begin
volnych := 0;
for kanal := 1 to 6 do
if IsFree4(kanal) then volnych := volnych + 1;
Get4ChFree := volnych;
end;
function Get2ChFree: byte; {vrati pocet volnych 2-op kanalov}
var volnych : byte;
kanal : byte;
begin
volnych := 0;
for kanal := 1 to 18 do
if IsFree2(kanal) then volnych := volnych + 1;
Get2ChFree := volnych;
end;
procedure MakeItFree2(kanal:byte); {uvolni 2-op kanal}
begin
OpJeFree[CH2OP[kanal,1]] := true;
OpJeFree[CH2OP[kanal,2]] := true;
end;
procedure MakeItNotFree2(kanal:byte); {vytvori 2-op kanal}
begin
OpJeFree[CH2OP[kanal,1]] := false;
OpJeFree[CH2OP[kanal,2]] := false;
end;
procedure MakeItFree4(kanal:byte); {uvolni 4-op kanal}
begin
OpJeFree[CH4OP[kanal,1]] := true;
OpJeFree[CH4OP[kanal,2]] := true;
OpJeFree[CH4OP[kanal,3]] := true;
OpJeFree[CH4OP[kanal,4]] := true;
end;
procedure MakeItNotFree4(kanal:byte); {vytvori 4-op kanal}
begin
OpJeFree[CH4OP[kanal,1]] := false;
OpJeFree[CH4OP[kanal,2]] := false;
OpJeFree[CH4OP[kanal,3]] := false;
OpJeFree[CH4OP[kanal,4]] := false;
end;
function Act2opChanell(Name:string):boolean; {aktivuje 2-op kanal}
var kan : byte;
ISfree : byte;
volnych : byte;
begin
Act2opChanell:=false;
for kan:=1 to 18 do
if IsFree2(kan) then
begin
Act2opChanell := true;
MakeItNotFree2(kan);
Active2Ch := Active2Ch + 1;
with O2Kanal[Active2Ch] do
begin
Meno := Name;
ID := 1;
kanal := kan;
end;
break;
end;
end;
function Deact2opChanell(Name:string):boolean; {deaktivuje 2-op kanal}
var k : byte;
label koniec;
begin
Deact2opChanell := true;
k:=0;
repeat
k:=k+1;
if k > Active2Ch then
begin
Deact2opChanell := false;
goto koniec;
end;
until O2Kanal[k].Meno = Name;
{ if k = Active2Ch then
begin}
Active2Ch := Active2Ch - 1;
MakeitFree2(k);
{ goto koniec;
end
else begin
repeat
O2Kanal[k] := O2Kanal[k+1];
k:=k+1;
until k = Active2Ch;
Active2Ch := Active2Ch - 1;
end; }
koniec:
end;
function Act4opChanell(Name:string):boolean; {aktivuje 4-op kanal}
var kan : byte;
ISfree : byte;
volnych : byte;
bytik,k : byte;
begin
Act4opChanell:=false;
for kan:=1 to 6 do
if IsFree4(kan) then
begin
Act4opChanell := true;
MakeItNotFree4(kan); {obsad ho}
Active4Ch := Active4Ch + 1;
bytik := 1;
{ for k := 1 to kan do
bytik :=bytik + 2*(kan-1);
OP4BYTE := OP4BYTE or bytik;
FMwriteReg($104, OP4Byte); }
with O4Kanal[Active4Ch] do
begin
Meno := Name;
ID := 2;
kanal := kan;
end;
break;
end;
end;
function Deact4opChanell(Name:string):boolean; {deaktivuje 4-op kanal}
var k, bytik, prem : byte;
label koniec;
begin
Deact4opChanell := true;
k:=0;
repeat
k:=k+1;
if k > Active4Ch then
begin
Deact4opChanell := false;
goto koniec;
end;
until O4Kanal[k].Meno = Name;
{ if k = Active4Ch then
begin }
Active4Ch := Active4Ch - 1;
bytik := 1;
for prem := 1 to k do
bytik := bytik * 2;
OP4BYTE := OP4BYTE xor bytik;
FMwriteReg($104, OP4BYTE);
MakeItFree4(k);
{
goto koniec;
end
else begin
bytik := 1;
for prem := 1 to k do
bytik := bytik * 2;
OP4BYTE := OP4BYTE xor bytik;
FMwriteReg($104, OP4BYTE);
repeat
O4Kanal[k] := O4Kanal[k+1];
k:=k+1;
until k = Active4Ch;
Active2Ch := Active2Ch - 1;
end;}
koniec:
end;
procedure Set4Sound(CHname:string; Instr : Polana4Inst); {vlozi do kanala zvuk}
var prem : byte;
kanal : byte;
OPof : Chan_4_Op;
Cur : byte;
BinCis : string;
TD, VD : byte;
begin
for prem := 1 to Active4Ch do
if O4Kanal[prem].Meno = Chname then
kanal := O4Kanal[prem].kanal;
OPof[1] := Operatory[CH4OP[kanal,1]];
OPof[2] := Operatory[CH4OP[kanal,2]];
OPof[3] := Operatory[CH4OP[kanal,3]];
OPof[4] := Operatory[CH4OP[kanal,4]];
with Instr do begin
{8h}
case NoteSel of
1 : FMWriteReg(($8+OPof[1]), 64);
0 : FMWriteReg(($8+OPof[1]), 0);
end;
{BDh}
if TremDepth = 1 then TD := 128
else TD := 0;
if VibDepth = 1 then VD := 64
else VD := 0;
Cur:=TD + VD;
BinCis:= DectoBin(Cur);
FMWriteReg(($BD + OPof[1]), TD + VD);
{Ops1}
with Ops[1] do begin
{C0h}
case RL of
0 : Cur:= 48;
1 : Cur:= 32;
2 : Cur:= 16;
end;
Cur := Cur + (FeedFact * 2) + SynthModes[FeedType,1];
FMWriteReg(($C0 + OPof[1]), Cur);
{O1} with Opers[1] do begin
{20h}
Cur:=0;
if Tremolo = 1 then Cur := 128;
if Vibrato = 1 then Cur := Cur + 64;
if Sustain = 1 then Cur := Cur + 32;
if KSR = 1 then Cur := Cur + 16;
Cur := Cur + FMul;
FMWriteReg(($20 + OPof[1]), Cur);
{40h}
FMWriteReg($40 + OPof[1], KSL * 64 + Level);
{60h}
FMWriteReg($60 + OPof[1], Attack * 16 + Decay );
{80h}
FMWriteReg($80 + OPof[1], Sustain * 16 + Release );
{E0h}
FMWriteReg($E0 + OPof[1], WaveForm);
end;
{O2} with Opers[2] do begin
{C4h}
FMWriteReg(($C4 + OPof[2]), SynthModes[FeedType,2]);
{20h}
Cur:=0;
if Tremolo = 1 then Cur := 128;
if Vibrato = 1 then Cur := Cur + 64;
if Sustain = 1 then Cur := Cur + 32;
if KSR = 1 then Cur := Cur + 16;
Cur := Cur + FMul;
FMWriteReg(($20 + OPof[2]), Cur);
{40h}
FMWriteReg($40 + OPof[2], KSL * 64 + Level);
{60h}
FMWriteReg($60 + OPof[2], Attack * 16 + Decay );
{80h}
FMWriteReg($80 + OPof[2], Sustain * 16 + Release );
{E0h}
FMWriteReg($E0 + OPof[2], WaveForm);
end;
end;
{Ops2}
with Ops[2] do begin
{C0h}
case RL of
0 : Cur:= 48;
1 : Cur:= 32;
2 : Cur:= 16;
end;
Cur := Cur + (FeedFact * 2) + SynthModes[FeedType,3];
FMWriteReg(($C0 + OPof[3]), Cur);
{O1} with Opers[1] do begin
{20h}
Cur:=0;
if Tremolo = 1 then Cur := 128;
if Vibrato = 1 then Cur := Cur + 64;
if Sustain = 1 then Cur := Cur + 32;
if KSR = 1 then Cur := Cur + 16;
Cur := Cur + FMul;
FMWriteReg(($20 + OPof[3]), Cur);
{40h}
FMWriteReg($40 + OPof[3], KSL * 64 + Level);
{60h}
FMWriteReg($60 + OPof[3], Attack * 16 + Decay );
{80h}
FMWriteReg($80 + OPof[3], Sustain * 16 + Release );
{E0h}
FMWriteReg($E0 + OPof[3], WaveForm);
end;
{O2} with Opers[2] do begin
{C4h}
FMWriteReg(($C4 + OPof[4]), SynthModes[FeedType,4]);
{20h}
Cur:=0;
if Tremolo = 1 then Cur := 128;
if Vibrato = 1 then Cur := Cur + 64;
if Sustain = 1 then Cur := Cur + 32;
if KSR = 1 then Cur := Cur + 16;
Cur := Cur + FMul;
FMWriteReg(($20 + OPof[4]), Cur);
{40h}
FMWriteReg($40 + OPof[4], KSL * 64 + Level);
{60h}
FMWriteReg($60 + OPof[4], Attack * 16 + Decay );
{80h}
FMWriteReg($80 + OPof[4], Sustain * 16 + Release );
{E0h}
FMWriteReg($E0 + OPof[4], WaveForm);
end;
end;
end;
end;
procedure Play4Sound(CHname:string;Freq:real;octave:byte);
var F_NUM : longint;
FN : byte;
FN2H : byte;
prem,kanal : byte;
OPof : Chan_4_Op;
begin
FN2H := 0;
F_NUM := trunc(Freq * 1.31);
FN := lo(F_NUM);
FN2H := hi(F_NUM);
for prem := 1 to Active4Ch do
if O4Kanal[prem].Meno = Chname then
kanal := O4Kanal[prem].kanal;
OPof[1] := Operatory[CH4OP[kanal,1]];
OPof[2] := Operatory[CH4OP[kanal,2]];
OPof[3] := Operatory[CH4OP[kanal,3]];
OPof[4] := Operatory[CH4OP[kanal,4]];
FMWriteReg($A0 + OpOf[1], FN);
FMWriteReg($B0 + OpOf[1], 32 + FN2H);
end;
procedure Stop4Sound(CHname:string);
var prem,kanal : byte;
OPof : Chan_4_Op;
begin
for prem := 1 to Active4Ch do
if O4Kanal[prem].Meno = Chname then
kanal := O4Kanal[prem].kanal;
OPof[1] := Operatory[CH4OP[kanal,1]];
OPof[2] := Operatory[CH4OP[kanal,2]];
OPof[3] := Operatory[CH4OP[kanal,3]];
OPof[4] := Operatory[CH4OP[kanal,4]];
FMWriteReg($B0 + OpOf[1], 0);
end;
procedure Set2Sound(CHname:string; Instr : Polana2Inst); {vlozi do kanala zvuk}
var prem : byte;
kanal : byte;
OPof : Chan_2_Op;
Cur : byte;
BinCis : string;
TD, VD : byte;
begin
for prem := 1 to Active2Ch do
if O2Kanal[prem].Meno = Chname then
kanal := O2Kanal[prem].kanal;
OPof[1] := Operatory[CH2OP[kanal,1]];
OPof[2] := Operatory[CH2OP[kanal,2]];
with Instr do begin
{8h}
case NoteSel of
1 : FMWriteReg(($8+OPof[1]), 64);
0 : FMWriteReg(($8+OPof[1]), 0);
end;
{BDh}
if TremDepth = 1 then TD := 128
else TD := 0;
if VibDepth = 1 then VD := 64
else VD := 0;
Cur:=TD + VD;
BinCis:= DectoBin(Cur);
FMWriteReg(($BD + OPof[1]), TD + VD);
{Ops} with Ops do begin
case RL of
0 : Cur:= 48;
1 : Cur:= 32;
2 : Cur:= 16;
end;
Cur := Cur + (FeedFact * 2) + SynthModes[FeedType,1];
FMWriteReg(($C0 + OPof[1]), Cur);
{O1} with Opers[1] do begin
{20h}
Cur:=0;
if Tremolo = 1 then Cur := 128;
if Vibrato = 1 then Cur := Cur + 64;
if Sustain = 1 then Cur := Cur + 32;
if KSR = 1 then Cur := Cur + 16;
Cur := Cur + FMul;
FMWriteReg(($20 + OPof[1]), Cur);
{40h}
FMWriteReg($40 + OPof[1], KSL * 64 + Level);
{60h}
FMWriteReg($60 + OPof[1], Attack * 16 + Decay );
{80h}
FMWriteReg($80 + OPof[1], Sustain * 16 + Release );
{E0h}
FMWriteReg($E0 + OPof[1], WaveForm);
end;
{O2} with Opers[2] do begin
{C4h}
FMWriteReg(($C4 + OPof[2]), SynthModes[FeedType,2]);
{20h}
Cur:=0;
if Tremolo = 1 then Cur := 128;
if Vibrato = 1 then Cur := Cur + 64;
if Sustain = 1 then Cur := Cur + 32;
if KSR = 1 then Cur := Cur + 16;
Cur := Cur + FMul;
FMWriteReg(($20 + OPof[2]), Cur);
{40h}
FMWriteReg($40 + OPof[2], KSL * 64 + Level);
{60h}
FMWriteReg($60 + OPof[2], Attack * 16 + Decay );
{80h}
FMWriteReg($80 + OPof[2], Sustain * 16 + Release );
{E0h}
FMWriteReg($E0 + OPof[2], WaveForm);
end;
end;
end;
end;
procedure Play2Sound(CHname:string;Freq:real;octave:byte);
var F_NUM : longint;
FN : byte;
FN2H : byte;
prem,kanal : byte;
OPof : Chan_2_Op;
begin
Freq:=Freq*(octave+1);
FN2H := 0;
F_NUM := trunc(Freq * 1.31);
FN := lo(F_NUM);
FN2H := hi(F_NUM);
for prem := 1 to Active2Ch do
if O2Kanal[prem].Meno = Chname then
kanal := O2Kanal[prem].kanal;
OPof[1] := Operatory[CH2OP[kanal,1]];
OPof[2] := Operatory[CH2OP[kanal,2]];
FMWriteReg($A0 + OpOf[1], FN);
FMWriteReg($B0 + OpOf[1], 32 + FN2H);
end;
procedure Stop2Sound(CHname:string);
var prem,kanal : byte;
OPof : Chan_2_Op;
begin
for prem := 1 to Active2Ch do
if O2Kanal[prem].Meno = Chname then
kanal := O2Kanal[prem].kanal;
OPof[1] := Operatory[CH2OP[kanal,1]];
OPof[2] := Operatory[CH2OP[kanal,2]];
FMWriteReg($B0 + OpOf[1], 0);
end;
end.