# srec_wilson

NAME
DESCRIPTION
The Lines
The Fields
Record Types
Size Multiplier
COPYRIGHT
MAINTAINER

## NAME

srec_wilson - wilson file format

## DESCRIPTION

This is a mystery format, added to support a mysery EPROM loader used by Alan Wilson <dvdsales@dvdlibrary.co.uk>

If you know the true name of this format, please let me know! It bears a remarkable similarity to the Motorola S-Record format, however I can find no reference to a "compressed" Motorola format.

### The Lines

Each line contains normal ASCII characters, and “high bit on[rq] characters, but the ASCII control characters are avoided (the high-bit-on con characters are not avoided). Normal line termination characters (CRLF or LF, depending on your system) are used.

The presence of high-bit-on characters makes this format unattractive to send via email, as it must be wrapped as a binary attachment, increasing its size.

In general, a single byte per byte is used to encode values, however some values use two bytes, according to the following table:

The rest of this description, when refering to “bytes[rq] means byte values encoded using the above table.

### The Fields

Each line consists of 5 fields. These are the type field, length field, address field, data field, and the checksum.

| Type |  | The type field is a 1 character field that specifies whether the record is data (0x43), or termination (0x47).

Record Length

The record length field is a 1 byte field that specifies the number of bytes in the record, excluding the type and record length fields.

| Address |  | This is a 4-byte address that specifies where the data is to be loaded into memory.
| Data |  | The data field contains the executable code, memory-loadable data or descriptive information to be transferred.

Checksum

The checksum is an 1-byte field that represents the least significant byte of the one’s complement of the sum of the values represented by the bytes making up the length, address, and data fields.

### Record Types

0x43 (#)

A record containing data and the 4-byte address at which the data is to reside.

0x47 (’)

A termination record. The address field may contain the 4-byte address of the instruction to which control is passed. There is no data field.

### Size Multiplier

In general, binary data will expand in sized by approximately 1.5 times when represented with this format.

## COPYRIGHT

srec_cat version 1.65
Copyright (C) 1998... Peter Miller

The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use the ’srec_cat -VERSion License’ command. This is free software and you are welcome to redistribute it under certain conditions; for details use the ’srec_cat -VERSion License’ command.

## MAINTAINER