                             Rigel Corporation
                              P.O. Box 90040
                           Gainesville, FL 32607
                                 (904) 373-4629
                            BBS: (904) 377-4435

                     (C) Rigel Corporation 1989-1995

CONTENTS
========
This zip file contains the READS integrated development environment, 
utility programs, and demo programs for Rigel's 8051 family of boards. 

INSTALLATION
============
The following procedure assumes that your floppy disk drive 
is A: and your hard drive is C:.  Substitute your own drive
letter if they differ.

1. Insert the diskette in the disk drive.
2. Make the disk drive the current drive by typing A:.
3. At the DOS prompt "INSTALL A: C:".
4. Install creates a new directory named READS51 and copies 
   all of the programs into this new directory. 

Alternatively, you may copy the file ReadsZip.exe to your 
target directory and, at the DOS prompt, type

 READSZIP -D

to install all programs and support files.


READS Versions
-------------------
 Reads    -- Reads version 1.x (uses traditional DOS; w/o mouse)
 Reads202 -- Version 2.02 (streamlined; some minor fixes)
 Reads203 -- Uses the MS Windows version of the assembler
             in RA51.DLL 
 ReadsDOS -- Runs in traditional DOS (no DOS extender)

                      
Reads V2.02 Notes
=================
Reads version 2.02 contains some fixes since version 2.00.  
As with version 2.00, Reads202.exe uses the DPMI drivers 
to take advantage of any memory beyond 640K of traditional 
DOS memory.  You may use Reads202 from a DOS box from 
MS Windows.  

If you use the EMM386 expanded memory driver, it is 
recommended that you include the following line in your
CONFIG.SYS file.  

  STACKS=18,512

The STACKS command is related to the way hardware interrupts 
are supported by EMM386.  Reads uses hardware interrupts to
communicate with the boards. The above command instructs  
EMM386 to use 18 stacks, each with a size of 512 bytes.


ReadsDos.exe
------------
ReadsDos.exe is the same as Reads202, except that it does not
use expanded memory.

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