work on intel hex support

Makefile

@@ -1,4 +1,4 @@
-TARGETS := hello test
+TARGETS := hello test undump
 LIBS := binary.pas ihex.pas
 FPC_FLAGS := -g
 FPC := fpc $(FPC_FLAGS)
@@ -15,3 +15,7 @@ hello: hello.pas
 
 test: test.pas $(LIBS)
 	$(FPC) $@.pas
+
+undump: undump.pas binary.pas ihex.pas
+	$(FPC) $@.pas
+

hello.pas

@@ -1,14 +0,0 @@
-program hello;
-
-procedure SayHello(name	: String);
-begin
-   Writeln('Hello, ', name);
-end;
-
-var
-   name	:  String[16];
-begin
-   Write('What is your name? ');
-   Readln(name);
-   SayHello(name);
-end.

ihex.pas

@@ -1,12 +1,59 @@
 const
-MaxRLen = 32;
+MaxLnLen : Integer = 64;
+MaxRLen  : Integer = 32;
+DumpBytes: Integer = 16;
+IRecEOF  : String[11] = ':00000001FF';
 
 type
+LnStr = String[64];
+
 {irec stores an individual record.}
 irec = record
 	  Addr	   : Integer;
-	  Data	   : array[1...MaxRLen] of Byte;
+	  Data	   : array [1..32] of Byte;
+	  Count    : Byte;
 	  MaxCount : Byte;
+  end;
 
-{procedure RdDumpLn;}
+
-{procedure wrirec;}
+function GetDumpCnt(Line : LnStr): Byte;
+begin
+	
+end;
+
+
+function RdDumpLn(Line : LnStr): irec;
+var
+	lrec : irec;
+begin
+	lrec.Addr := ReadWord(Line);
+	while (lrec.Count < DumpBytes) do
+	begin
+		lrec.Count := lrec.Count + 1;	
+	end;
+
+	RdDumpLn := lrec;
+end;
+
+function IRecCS(rec : irec) : Byte;
+var
+	cksm : Integer = 0;
+begin
+	cksm := rec.Addr + rec.Count;
+
+	IRecCS := Byte(cksm and $00FF);
+end;
+
+procedure wrirec(rec : irec);
+var
+	I : Byte;
+begin
+	Write(':');
+	Write(WriteByte(rec.Count));
+	Write(WriteWord(rec.Addr));
+
+	for I := 1 to rec.Count do
+	    Write(WriteByte(rec.Data[I]));
+
+	Writeln(WriteByte(IRecCS(rec)));
+end;

undump.pas

@@ -3,3 +3,10 @@ program undump;
 	undump is a program to take the output from dump
 	and put it into binary format.
 }
+
+{$I 'binary.pas'}
+{$I 'ihex.pas'}
+
+begin
+    Writeln('UNDUMP V1.0');
+end.