(* Copyright (C) 1987 Jensen & Partners International *)
DEFINITION MODULE AsmLib;

IMPORT SYSTEM;


PROCEDURE HashString(S: ARRAY OF CHAR; Range: CARDINAL) : CARDINAL;

PROCEDURE Move(Source,Dest: ADDRESS; Count: CARDINAL);

PROCEDURE Fill(Dest: ADDRESS; Count: CARDINAL; Value: BYTE);

PROCEDURE WordFill(Dest: ADDRESS; WordCount: CARDINAL; Value: WORD);

PROCEDURE WordMove(Source,Dest: ADDRESS; WordCount: CARDINAL);


PROCEDURE AddAddr(A: ADDRESS; increment: CARDINAL) : ADDRESS;

PROCEDURE SubAddr(A: ADDRESS; decrement: CARDINAL) : ADDRESS;

PROCEDURE IncAddr(VAR A: ADDRESS; increment: CARDINAL);

PROCEDURE DecAddr(VAR A: ADDRESS; decrement: CARDINAL);


PROCEDURE UserBreak;

PROCEDURE FatalError(S: ARRAY OF CHAR);

PROCEDURE Terminate(P: PROC; VAR C: PROC);

PROCEDURE SetReturnCode(code: SHORTCARD);

PROCEDURE EnableBreakCheck;

PROCEDURE DisableBreakCheck;


TYPE
  LongLabel = ARRAY[0..3] OF CARDINAL ;

(*$C 00*) (* save no registers *)
PROCEDURE SetJmp (VAR Lbl: LongLabel) : CARDINAL;
(*$C FF*) (* no return *)
PROCEDURE LongJmp(VAR Lbl: LongLabel; result: CARDINAL);
(*$C F0*) (* restore default register save mask *)


PROCEDURE ScanR  (Dest: ADDRESS; Count: CARDINAL; Value: BYTE) : CARDINAL;

PROCEDURE ScanL  (Dest: ADDRESS; Count: CARDINAL; Value: BYTE) : CARDINAL;

PROCEDURE ScanNeR(Dest: ADDRESS; Count: CARDINAL; Value: BYTE) : CARDINAL;

PROCEDURE ScanNeL(Dest: ADDRESS; Count: CARDINAL; Value: BYTE) : CARDINAL;

PROCEDURE Compare(Source,Dest: ADDRESS; Len: CARDINAL) : CARDINAL;


TYPE
  CommandType = POINTER TO ARRAY[0..126] OF CHAR;

VAR
  PSP         : CARDINAL;
  CommandLine : CommandType;

PROCEDURE Environment(N: CARDINAL) : CommandType;

PROCEDURE Dos(VAR R: SYSTEM.Registers); (* INT 21H Function Call *)

PROCEDURE Intr(VAR R: SYSTEM.Registers; I: CARDINAL);

PROCEDURE ParamStr(VAR S: ARRAY OF CHAR; N: CARDINAL);

PROCEDURE ParamCount() : CARDINAL;

PROCEDURE Delay(Time: CARDINAL);

PROCEDURE Sound(FreqHz: CARDINAL);

PROCEDURE NoSound;

PROCEDURE Speaker(TotalTime,OnTime,OffTime: CARDINAL);


(* Support Procedures for window handling *)

PROCEDURE BufferToScreen ( X,Y : CARDINAL;     (* Destination co-ordinates *)
                           Source : ADDRESS;   (* Address of source buffer *)
                           Len : CARDINAL);    (* Length to write *)
PROCEDURE ScreenToBuffer ( X,Y : CARDINAL;     (* Source co-ordinates *)
                           Dest : ADDRESS;     (* Address of source buffer *)
                           Len : CARDINAL);    (* Length to read  *)
PROCEDURE BufferWrite    ( Buff : ADDRESS;     (* Destination *)
                           Str : ADDRESS;      (* Source *)
                           Len : CARDINAL;
                           Attr : CARDINAL);   (* Attribute *)

PROCEDURE SetVideoPage(page: CARDINAL);
PROCEDURE PalXlat ( To      : ADDRESS ;    (* Destination *)
                    From    : ADDRESS ;    (* Source *)
                    Len     : CARDINAL ;
                    Pallete : ADDRESS ) ; (* Attribute *)
PROCEDURE ActivePage () : SHORTCARD ;
PROCEDURE InitScreenType( IsSnow : BOOLEAN ) ;


(* String procedures *)

PROCEDURE Caps(VAR S: ARRAY OF CHAR);

PROCEDURE CompareStr(S1,S2: ARRAY OF CHAR) : INTEGER;

PROCEDURE Length(S : ARRAY OF CHAR) : CARDINAL;

PROCEDURE Concat(VAR R: ARRAY OF CHAR; S1,S2: ARRAY OF CHAR);

PROCEDURE Append(VAR R: ARRAY OF CHAR; S: ARRAY OF CHAR);

PROCEDURE Copy  (VAR R: ARRAY OF CHAR; S: ARRAY OF CHAR);

PROCEDURE Slice (VAR R: ARRAY OF CHAR; S: ARRAY OF CHAR; P,L: CARDINAL);

PROCEDURE Pos(S,P: ARRAY OF CHAR) : CARDINAL;



PROCEDURE DosExec(name: ARRAY OF CHAR; paramblock: ADDRESS) : CARDINAL;

PROCEDURE Disable8087ContextSave;

PROCEDURE SetInProgramFlag( on:BOOLEAN );
PROCEDURE GetInProgramFlag():BOOLEAN;

END AsmLib.