LEWISCRC - A Pioneer and Clamshell ROM CRC Checker
10/26/22 (c) by Christoph Gieelink, c.giesselink@gmx.de


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	* LEWISCRC *
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This is a small tool for checking the ROM Checksum of the Low-End Pioneer,
the ROM CRC of the Mid-Range and High-End Pioneer and the Clamshell series
calculator images running on the 1LU7 Bert, the 1LR3 Sacajawea or the 1LR2
Lewis chip. These ROM images have build in checksums to test the integrity
of the ROM content.

This program accepts packed or unpacked binary images of 10, 16, 64, 96 and
128 KB ROM size.

Examples for

1) 10KB ROM images

- HP10B
- HP20S
- HP21S

2) 16KB ROM images

- HP14B
- HP22S
- HP32S
- HP32SII

3) 64KB ROM images

- HP17B   English version
- HP17BII English version
- HP27S
- HP42S

4) 96KB ROM images

- HP17B   International version
- HP17BII International version

5) 128KB ROM images

- HP19BII
- HP28S


To check a ROM image, start a Command Prompt while running Windows, and type:
	Lewiscrc <ROM-File>

where <ROM-File> is the ROM image you want to test. As result you will get a
report of the Checksum/CRC check.


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	* LEGAL STUFF *
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LEWISCRC - A Pioneer and Clamshell ROM CRC Checker
Copyright (C) 2022 Christoph Gieelink

This program is freeware. Use it at your own risk.
