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ADVANCE.PAS
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ADVANCE.PAS
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{/////////////////////////////////////////////////////////////////////////
//
// Dos Navigator Version 1.51 Copyright (C) 1991-99 RIT Research Labs
//
// This programs is free for commercial and non-commercial use as long as
// the following conditions are aheared to.
//
// Copyright remains RIT Research Labs, and as such any Copyright notices
// in the code are not to be removed. If this package is used in a
// product, RIT Research Labs should be given attribution as the RIT Research
// Labs of the parts of the library used. This can be in the form of a textual
// message at program startup or in documentation (online or textual)
// provided with the package.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. All advertising materials mentioning features or use of this software
// must display the following acknowledgement:
// "Based on Dos Navigator by RIT Research Labs."
//
// THIS SOFTWARE IS PROVIDED BY RIT RESEARCH LABS "AS IS" AND ANY EXPRESS
// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The licence and distribution terms for any publically available
// version or derivative of this code cannot be changed. i.e. this code
// cannot simply be copied and put under another distribution licence
// (including the GNU Public Licence).
//
//////////////////////////////////////////////////////////////////////////}
{$A-,B-}
UNIT Advance;
INTERFACE
USES Dos;
const
TextReaderBufSize = $1000;
type
TTextReaderBuf = array[0..TextReaderBufSize-1] of Char;
PTextReader = ^TTextReader;
TTextReader = object
Eof: Boolean;
constructor Init(const FName: string);
function GetStr: string;
function FileName: string;
destructor Done; virtual;
private
Handle: File;
BufSz: Integer;
BufPos: Integer;
Buf: TTextReaderBuf;
Skip1: Boolean;
end;
{ TColorIndexes }
PColorIndex = ^TColorIndex;
TColorIndex = record
GroupIndex: byte;
ColorSize: byte;
ColorIndex: array[0..255] of byte;
end;
TSize = Comp;
CharSet = set of Char;
Str2 = string[2];
Str3 = string[3];
Str4 = string[4];
Str5 = string[5];
Str8 = string[8];
Str12 = string[12];
Str40 = string[40];
TCharImage = array [0..15] of Byte;
TDCountryInfo = record
DateFmt: Word;
Currency: array[1..5] of Char;
ThSep: array[1..2] of Char;
DecSep: array[1..2] of Char;
DateSep: array[1..2] of Char;
TimeSep: array[1..2] of Char;
CurFmt: Byte;
CurDec: Word;
TimeFmt: Byte;
CaseTbl: Pointer;
DataSep: array[1..2] of Char;
Zeros: array[1..10] of Byte;
end;
TCountryInfo = record
DateFmt: Word; {Radiobuttons}
TimeFmt: Word; {Radiobuttons}
DateSep: string[1]; {Inputline}
TimeSep: string[1]; {Inputline}
ThouSep: string[1]; {Inputline}
DecSep: string[1]; {Inputline}
DecSign: string[1]; {Inputline}
Currency: string[4]; {Inputline}
CurrencyFmt: Word; {Radiobuttons}
UpperTable: array[#128..#255] of Char;
end;
CONST
ColorIndexes: PColorIndex = nil;
{ Keyboard state and shift masks }
kbRightShift = $0001;
kbLeftShift = $0002;
kbCtrlShift = $0004;
kbAltShift = $0008;
kbScrollState = $0010;
kbNumState = $0020;
kbCapsState = $0040;
kbInsState = $0080;
On = True;
Off = False;
NumFloppy: Byte = 0;
JustRegistered: Boolean = Off;
function FExpand (Path: PathStr): PathStr;
function StrGrd(AMax, ACur: LongInt; Wide: Byte): string;
function Percent(AMax, ACur: LongInt): LongInt;
procedure LowPrec(var A, B: LongInt);
procedure ResourceAccessError;
function LngId: string;
function ExistFile(const FName : PathStr) : Boolean;
function MemOK: Boolean;
procedure Hex8Lo(L:longInt;var HexLo);
function CalcTmpFName(Id: LongInt; const AExt: Str3): PathStr;
function CalcTmpId:LongInt;
function HotKey(const S: String): Char;
function IsDriveCDROM(Drive : Char) : Boolean;
function Get100s: LongInt;
function MakeCMDParams(const S, Fl1, Fl2: string): string;
{procedure ParseCMDStr(S: string; var F: Text; var LbNo: Integer;
const Fl1, Fl2: string );}
function GetEnv(S: string): string;
Procedure Sound ( Hz : word );
Procedure Nosound;
Procedure AddStr(var S ; C : char);
procedure DelFC(var s:string);
{--- ' '-related string functions }
FUNCTION AddSpace(const s:string; N:byte):string;
FUNCTION PredSpace(s:string; N:byte):string;
Function DelSpaces(s : string) : string;
procedure DelSpace(var s : string);
Procedure DelRight(var S: string);
procedure DelLeft (var S: string);
function GetSTime: LongInt;
procedure LocateCursor(X, Y: Byte);
procedure FillWord(var B;Count, W: Word);
procedure ChDir(S: string);
procedure GetUNIXDate(Julian: LongInt; var Year, Month, Day, Hour, Min, Sec: Word);
function UpCaseStr(S: string): string;
function LowCaseStr(S: string): string;
procedure EraseByName(const FName: PathStr);
Procedure EraseFile(const N: PathStr);
{
Function SearchFileStr(FName, What: string; Pos: LongInt; CaseSensitive: Boolean): LongInt;
Function SearchInFile(FName, What: string; CaseSensitive: Boolean): LongInt;
}
Function BackSearchFor(S: string;var B;L: Word; CaseSensitive: Boolean): Word;
Function SearchFor(S: string;var B;L: Word; CaseSensitive: Boolean): Word;
Function DumpStr(var B; Addr: LongInt; Count: Integer; Filter: Byte): string;
Function ValidDrive(dr : char) : Boolean;
Function GetDrive : byte;
Procedure SetDrive(a : byte);
Function Strg(c:char; Num: Byte) : string;
Function UpStrg(const s : string) : string;
Procedure UpStr(var s : string);
Function LowStrg(s : string) : string;
Procedure LowStr(var s : string);
Function LowCase(c : Char) : Char;
Procedure SetBlink(Mode : boolean);
Function ItoS(a:longint):string;
Function StoI(s:string):Longint;
Function SStr(a:longint;b:Byte;c:Char):string;
Function FStr(a:TSize):string;
Function FileSizeStr( X: LongInt ): string;
Function Hex2(a : byte) : Str2;
Function Hex4(a : word) : Str4;
Function Hex8(a : LongInt) : Str8;
Function HexChar(a : byte) : char;
Procedure DefineChar(n : Integer;var a);
Procedure GetDChar(n : Integer;var a);
Procedure ClrIO;
Function Cut(p : string; len : Byte ) : string;
Procedure GetMask(var m : string);
Procedure DelDoubles(const St : string;var Source : string);
function GetCurDrive: Char;
procedure SetCurDrive(C: Char);
FUNCTION GetExt(const s:string):string;
FUNCTION Norm12(const s:string):Str12;
FUNCTION InMask(const Name,Mask: string):Boolean;
FUNCTION InFilter(Name,Filter: string):Boolean;
FUNCTION InSpaceMask(Name,Mask: string;ValidSpace: Boolean):Boolean;
FUNCTION InSpaceFilter(Name,Filter: string):Boolean;
FUNCTION GetPath(S: PathStr): PathStr;
FUNCTION GetName(S: PathStr): PathStr;
FUNCTION MakeFileName(S: string): string;
FUNCTION MakeNormName(S, S1: string): string;
FUNCTION Replace(const Pattern, ReplaceString: string; var S: string): Boolean;
function FindArg(const Command: string; var S: string): Boolean;
FUNCTION XDiv1024( X: LongInt ): LongInt;
FUNCTION LongRatio( X, Y: LongInt ): Integer;
FUNCTION XRandom(N: Integer): Integer; { Rnd -N..N }
FUNCTION Min(x,y: LongInt):LongInt;
FUNCTION Max(x,y: LongInt):LongInt;
FUNCTION Sgn(x : integer):integer;
FUNCTION Real2Str(X: Real; N: Byte): string;
FUNCTION Long2Str(X: Longint; L: Byte): string;
FUNCTION Long0Str(X: Longint; L: Byte): string;
FUNCTION ToHex(I: Word): string;
PROCEDURE DosWrite( S: string );
FUNCTION PosChar(C: Char; S: string): Byte;
procedure MakeDate(Mode,Day,Month,Year,Hour,Min: Word; var S: string);
procedure MakeCurrency(R: Real; var S: string);
function KeyPressed: Boolean;
procedure Beep(N: Byte);
function FindParam(const S: string): Integer;
function Chk4Dos: Boolean;
function FileNameOf(var F: file): string;
function MemAdjust(L: LongInt): LongInt;
const
UpperString: string =
#1#2#3#4#5#6#7#8#9#10#11#12#13#14#15#16 +
#17#18#19#20#21#22#23#24#25#26#27#28#29#30#31#32 +
'!"#$%&''()*+,-./0123456789:;<=>?@' +
'ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`' +
'ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~' +
'A
' +
'A
°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß'+
'ðñòóôõö÷øùúûüýþ'#255;
LowerString: string =
(#1#2#3#4#5#6#7#8#9#10#11#12#13#14#15#16 +
#17#18#19#20#21#22#23#24#25#26#27#28#29#30#31#32 +
'!"#$%&''()*+,-./0123456789:;<=>?@' +
'abcdefghijklmnopqrstuvwxyz[\]^_`' +
'abcdefghijklmnopqrstuvwxyz{|}~' +
'a¡¢£¤e¦§¨©ª«mo¯pcâyäåæçèéêëìíîï' +
'a¡¢£¤e¦§¨©ª«mo¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß'+
'pcâyäåæçèéêëìíîïðñòóôõö÷øùúûüýþ'#255);
BreakChars : Set of Char = [',',' ','[',']','{','}','(',')',':',';','.','^',
'&','*','!','#','$','/','\','''','"','%','>','<',
'-','+','=','|','?',#13,#10,#9,#26,#12];
QuickExecExternalStr: string='';
UpcaseInit : Boolean = Off;
HexStr : string[16] = '0123456789ABCDEF';
LoHexChar : array[0..$F] of char='0123456789abcdef';
N_O_E_M_S : string[5] = 'NOEMS';
cTEMP_ : string[5] = 'TEMP:';
cLINK_ : string[5] = 'LINK:';
x_x : string[3] = '*.*';
var
ShiftState: Byte absolute $40:$17;
Abort : Boolean;
DOS40 : Boolean;
OS210 : Boolean;
FreeStr : string;
ActiveDir: PathStr;
DNNumber: Byte;
UpCaseArray: array[Char] of Char Absolute UpperString ;
LowCaseArray: array[Char] of Char Absolute LowerString ;
StartupDir: PathStr;
SourceDir: PathStr;
TempDir: PathStr;
TempFile: PathStr;
LngFile: PathStr;
SwpDir: PathStr;
const
CL_SafeBuf = $8000;
Linker: Pointer = nil;
NeedLocated: LongInt = 0;
const
CountryInfo: TCountryInfo =
( DateFmt:1;
TimeFmt:1;
DateSep:'-';
TimeSep:':';
ThouSep:',';
DecSep:'.';
DecSign:'2';
Currency:'$';
CurrencyFmt:0;
UpperTable:'
' +
'
°±²³´µ¶·¸¹º»¼½¾¿' +
'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß' +
'ðñòóôõö÷øùúûüýþ'#255
);
{ CountryInfo: record
Id: Byte;
Size: Word;
CoutryID: Word;
CodePage: Word;
DateFormat: Word;
Currency: array[1..5] of Char;
thouasands: Word;
decimal: Word;
DateSep: Word;
TimeSep: Word;
CurrencyFlags: Word;
CurDecimals: Word;
TimeForm: Byte;
CaseMap: Pointer;
DataList: Word;
Zeros: array [1..10] of Byte;
Length: Word;
end;
}
var DCountryInfo: TDCountryInfo;
type SessionType = (stOS2SYS, stOS2FullScreen, stOS2Windowed, stPMSession,
stVDMFullScreen, stWinFullScreen, stWinWindow, stVDMWindow);
procedure StartOS2Session(DataLen: Word; Session: Sessiontype; Background: Boolean;
Title, Name, Args, IcoName: string);
procedure RunOS2Command(Command: string; Bckg: Boolean; Session: SessionType);
function GetDateTime(Time: Boolean): string;
IMPLEMENTATION
uses xTime;
function GetDateTime(Time: Boolean): string;
var S: string[30];
Y,M,D,DW: Word;
H,Mn,SS,S100: Word;
function LeadingZero(w: Word): string;
var s: string;
begin
Str(w:0, s);
LeadingZero := Copy('00', 1, 2 - Length(s)) + s;
end;
function FormatTimeStr(H, M, SS: Word): string;
var N: string[3];
S: string[20];
begin
if (CountryInfo.TimeFmt = 0) and (H > 12) then
begin
S := LeadingZero(h-12) + CountryInfo.TimeSep + LeadingZero(m) + CountryInfo.TimeSep + LeadingZero(ss);
N := 'pm';
end
else
begin
S := LeadingZero(h)+ CountryInfo.TimeSep + LeadingZero(m) + CountryInfo.TimeSep + LeadingZero(ss);
if CountryInfo.TimeFmt = 0
then if (H < 12) then N := 'am' else N := 'pm'
else N := '';
end;
FormatTimeStr := S + N;
end;
begin
GetDate(Y,M,D,DW);
GetTime(H,Mn,SS,S100);
MakeDate(0, D, M, Y mod 100, H, Mn, S);
if Time then S := FormatTimeStr(H, Mn, SS)
else S[0] := #8;
GetDateTime := S;
end;
procedure Beep;
procedure Twf(a,b : Word);assembler;
asm
cli
mov dx,60
@L0: mov bx,b
@L1: mov al,$4A
out $61,al
mov cx,dx
inc cx
@RepLoop: loop @RepLoop
mov al,$48
out $61,al
mov cx,a
sub cx,dx
@Rep2: loop @Rep2
dec bx
jnz @L1
dec dx
jnz @L0
sti
end;
begin
case N of
1 : begin Twf(800,2);Twf(1000,3);end;
2 : begin Twf(1200,2);Twf(700,3);Twf(900,4);end;
3 : begin Twf(1200,1);end;
end;
end;
procedure MakeDate;
procedure GetDig(R: Byte; var S); assembler;
asm
les bx, S
{ mov byte ptr es:[bx], 2}
mov al, R
xor ah,ah
mov cx, 10
div cl
add al, 48
add ah, 48
cmp al, 48
jnz @@1
mov al, '0'
@@1:
mov es:[bx], ax
end;
begin
Year := Year mod 100;
FillChar(S, 16, 32);
S[0] := #15;
Move(CountryInfo.DateSep[1], S[3], Length(CountryInfo.DateSep));
Move(CountryInfo.DateSep[1], S[6], Length(CountryInfo.DateSep));
Move(CountryInfo.TimeSep[1], S[12], Length(CountryInfo.TimeSep));
case CountryInfo.DateFmt of
0: begin
GetDig(Day, S[4]);
GetDig(Month, S[1]);
GetDig(Year, S[7]);
end;
1: begin
GetDig(Day, S[1]);
GetDig(Month, S[4]);
GetDig(Year, S[7]);
if S[1] = '0' then S[1] := ' ';
end;
2: begin
GetDig(Day, S[7]);
GetDig(Month, S[4]);
GetDig(Year, S[1]);
end;
end;
GetDig(Min, S[13]);
if CountryInfo.TimeFmt = 0 then
begin
if Hour <= 12 then if Hour = 12 then S[15] := 'p' else S[15] := 'a'
else begin Dec(Hour, 12); S[15] := 'p' end;
end else Dec(S[0]);
GetDig(Hour, S[10]);
if S[10] = '0' then S[10] := ' ';
end;
(*assembler;
asm
xor ax,ax
or al, Mode
jnz @mmddyy
@ddmmyy:
les bx, S
mov byte ptr es:[bx], 14
mov al, Day
xor ah,ah
mov cx, 10
div cl
add al, 48
add ah, 48
cmp al, 48
jnz @@1
mov al, ' '
@@1:
mov es:[bx+1], ax
mov byte ptr es:[bx+3], '-'
mov al, Month
xor ah,ah
mov cx, 10
div cl
add al, 48
add ah, 48
mov es:[bx+4], ax
mov byte ptr es:[bx+6], '-'
mov al, Year
xor ah,ah
mov cx, 10
div cl
add al, 48
add ah, 48
mov es:[bx+7], ax
jmp @Exit
@mmddyy:
cmp al, 1
jnz @yymmdd
mov al, Day
mov ah, Month
mov Day, ah
mov Month, al
jmp @ddmmyy
@yymmdd:
mov al, Day
mov ah, Month
mov Day, ah
mov Month, al
jmp @ddmmyy
@Exit:
mov al, Hour
xor ah,ah
mov cx, 10
div cl
add al, 48
add ah, 48
cmp al, 48
jnz @@2
mov al, ' '
@@2:
mov byte ptr es:[bx+9], ' '
mov es:[bx+10], ax
mov byte ptr es:[bx+12], ':'
mov al, Min
xor ah,ah
mov cx, 10
div cl
add al, 48
add ah, 48
mov es:[bx+13], ax
end;
*)
FUNCTION GetPath;
var B: Byte;
begin
B := Length(S); while (B > 0) and (S[B] <> '\') do Dec(B);
If B=0 then GetPath:=S else GetPath:=Copy(S, 1, B)
end;
FUNCTION GetName;
var B: Byte;
begin
B:=Length(S);
For B:=length(S) downto 1 do If S[B]='\'
then begin GetName:=Copy(S, B+1, 255); Exit end;
GetName:=S;
end;
FUNCTION XRandom;
begin
XRandom:=N div 2 - Random(N)
end;
FUNCTION GetExt;
var i:byte;
begin
i:=PosChar('.',s);
if i=0
then GetExt:='. '
else GetExt:=Copy(s,i,length(s)-i)
end;
Function LowCase(c : Char) : Char;assembler;
label LocEx;
asm
mov al,c
cmp al,65
jc LocEx
cmp al,91
jnc LocEx
xor al,$20
LocEx:
end;
Procedure LowStr(var s : string);assembler;
label NextChar,NoLow,LocExit;
asm
les bx,s
mov ch,0
mov cl, [es:bx]
inc bx
jcxz LocExit
NextChar:
mov al, [es:bx]
cmp al,65
jc NoLow
cmp al,91
jnc NoLow
xor al,$20
mov [es:bx], al
NoLow:
inc bx
loop NextChar
LocExit:
end;
Function LowStrg(s : string) : string;
begin
LowStr(s);
LowStrg:=s;
end;
Procedure UpStr(var s : string);assembler;
label NextChar,NoLow,LocExit;
asm
les bx,s
mov ch,0
mov cl, [es:bx]
inc bx
jcxz LocExit
NextChar:
mov al, [es:bx]
cmp al,'a'
jc NoLow
cmp al,'z'+1
jnc NoLow
xor al,$20
mov [es:bx], al
NoLow:
inc bx
loop NextChar
LocExit:
end;
Function UpStrg(const s : string) : string; assembler;
label NextChar,NoLow,LocExit;
asm
cld
push ds
lds si,s
les di, @Result
lodsb
stosb
mov cl,al
mov ch,0
jcxz LocExit
NextChar:
lodsb
cmp al,'a'
jc NoLow
cmp al,'z'+1
jnc NoLow
xor al,$20
NoLow:
stosb
loop NextChar
LocExit:
pop ds
end;
procedure DelSpace; assembler;
asm
les bx, S
xor ch, ch
mov cl, es:[bx]
jcxz @@1
mov di, 1
mov si, 1
xor al, al
mov es:[bx], al
@@2:
mov al, es:[bx][di]
cmp al, ' '
jz @@3
cmp al, 9
jz @@3
mov es:[bx][si], al
inc byte ptr es:[bx]
inc si
@@3:
inc di
loop @@2
@@1:
end;
Function DelSpaces;
begin
DelSpace(S);
DelSpaces := S;
end;
Function MakeFileName(S: string): string;
var I: Integer;
L: Byte absolute S;
begin
S[9] := '.';
I := 8;
While (I > 0) and (S[I] = ' ') do begin Delete(S, I, 1); Dec(I); end;
While S[L] = ' ' do Dec(L);
if S[Length(S)] = '.' then Dec(S[0]);
MakeFileName := S;
end;
Function Strg; assembler;
asm
les di, @Result
mov al, Num
stosb
mov ch, 0
mov cl, al
mov al, c
rep stosb
end;
Procedure SetBlink(Mode : boolean); assembler;
asm
MOV AX,1003H
MOV BL,Mode
push bp
INT 10h
pop bp
end;
Function ItoS(a:longint):string;
var s : string[40];
begin
Str(a,s);
ItoS:=s;
end;
Function StoI(s:string):Longint;
var i : longint;
j : Integer;
begin
Val(s,i,j);
StoI:=i;
end;
Function SStr(a:longint;b:Byte;c:Char):string;
var s : string[40];
i : integer;
begin
Str(a:b,s);i:=1;
While i<b do
begin
if s[i]=' ' then s[i]:=c else i:=255;
Inc(i);
end;
SStr:=s;
end;
Function FStr(a:TSize):string;
var s,s1 : string[40];
s1l: byte absolute s1;
i : Integer;
C: Char;
begin
Str(A:0:0, S);
if CountryInfo.ThouSep[0] > #0 then
begin
C := CountryInfo.ThouSep[1];
asm
lea si, s
lea di, s1
mov bx, di
mov al, ss:[si]
xor ah, ah
mov cx, 3
div cl
mov byte ptr ss:[bx], 0
mov cl, ss:[si]
mov dl, ah
Mov al, C
or dl, dl
jnz @@1
mov dl, 3
@@1:
or cl, cl
jz @@3
@@2:
mov ah, ss:[si+1]
mov byte ptr ss:[di+1], ah
inc byte ptr ss:[bx]
inc di
inc si
dec cl
jz @@3
dec dl
jnz @@2
mov dl, 3
mov byte ptr ss:[di+1], al
inc di
inc byte ptr ss:[bx]
jmp @@2
@@3:
end;
end else S1 := S;
if Length(S1)>12 then
begin
Dec(s1l,3);
s1[s1l] := 'K';
end;
FStr:=s1;
end;
Function Hex2;
begin Hex2:=HexChar(a shr 4)+HexChar(a) end;
Function Hex4;
begin
Hex4:=HexChar(Hi(a) shr 4)+HexChar(Hi(a))+
HexChar(Lo(a) shr 4)+HexChar(Lo(a));
end;
Function Hex8;
var s: Str8;
begin
s[0]:=#8; Hex8Lo(a,s[1]); Hex8 := s;
end;
Function HexChar(a : byte) : char; assembler;
label Loc1;
asm
mov al,a
and al,0Fh
add al,'0'
cmp al,58
jc Loc1
add al,7
Loc1:
end;
Procedure DefineChar(n : Integer;var a);
begin
PortW[$3C4]:=$0402;
PortW[$3C4]:=$0704;
PortW[$3CE]:=$0005;
PortW[$3CE]:=$0406;
PortW[$3CE]:=$0204;
move(a,mem[$A000:n*32],16);
PortW[$3C4]:=$0302;
PortW[$3C4]:=$0304;
PortW[$3CE]:=$1005;
PortW[$3CE]:=$0E06;
PortW[$3CE]:=$0004;
end;
Procedure GetDChar(n : Integer;var a);
begin
PortW[$3C4]:=$0402;
PortW[$3C4]:=$0704;
PortW[$3CE]:=$0005;
PortW[$3CE]:=$0406;
PortW[$3CE]:=$0204;
move(mem[$A000:n*32],a,16);
PortW[$3C4]:=$0302;
PortW[$3C4]:=$0304;
PortW[$3CE]:=$1005;
PortW[$3CE]:=$0E06;
PortW[$3CE]:=$0004;
end;
Procedure ClrIO;
begin
InOutRes := 0;
DosError := 0;
Abort := Off;
end;
function Cut;
begin
Cut:=p; if Len>=Byte(p[0]) then Exit;
Delete(p,3,Byte(p[0])-Len+4);Insert('...',p,3);
Cut:=p;
end;
procedure GetMask(var m : string);
var q : string[12];
i : Byte;
b : Boolean;
begin
q:='????????.???';
i:=Pos('.',m);
if i>0 then if i>9 then Delete(m,9,i-9) else Insert(Copy(' ',1,9-i),m,i)
else m:=Copy(m+Strg(' ',8),1,8)+'. ';
i:=1;b:=On;
while m[i]<>'.' do
begin
if b then
begin
b:=b and (m[i]<>'*');
if b then q[i]:=m[i];
end;
Inc(i);
end;
Delete(m,1,i);
i:=1;b:=On;
while (i<=3) and (m[0]>=Char(i)) do
begin
if b then
begin
b:=b and (m[i]<>'*');
if b then q[i+9]:=m[i];
end;
Inc(i);
end;
m:=LowStrg(q);
end;
procedure DelDoubles;
begin
while Pos(ST,Source)>0 do Delete(Source,Pos(St,Source),1);
end;
FUNCTION Min; begin if x<y then Min:=X else Min:=Y end;
FUNCTION Max; begin if x<y then Max:=Y else Max:=X end;
FUNCTION Sgn; begin if x>0 then Sgn:=1 else if x<0 then Sgn:=-1 else Sgn:=0 end;
PROCEDURE DosWrite;assembler;
asm
les di,S
xor cx,cx
mov cl,byte ptr es:[di]
jcxz @empty
@loop:
inc di
mov ah,2
mov dl,byte ptr es:[di]
push es
push di
push cx
int 21h
pop cx
pop di
pop es
loop @loop
@empty:
end;
FUNCTION PosChar; assembler;
asm
les di,S
xor ch,ch
mov cl,byte ptr es:[di]
mov bx,cx
inc di
cld
mov al,C
repne scasb
jnz @S
sub bx,cx
mov al,bl
jmp @Q
@S:xor al,al
@Q:
end;
FUNCTION Norm12;
var R: string[12]; I: Byte; L: Byte absolute S;
begin
{if S[0]=#12 then begin Norm12:=S; Exit end;}
System.FillChar(R[1],12,' '); R[0]:=#12;
if s[1]='.' then begin Norm12:=AddSpace(s,12); Exit end;
R[9]:='.'; i:=PosChar('.',s);
if i=0 then i:=succ(l) else move(s[succ(i)],r[10],Min(l-i,3));
if i>8 then i:=8 else dec(i);
move(s[1],r[1],i);
i:=1;