NAME
srec_os65v - OS65V Loader file format
DESCRIPTION
This format is used by Ohio Scientific OS65V‐compatible loaders. This
family of machines includes the OSI C1P, Superboard II, C2, C4, C8, and
Challenger III, as well as the UK101, and Elektor Junior.
The file startes with a period ’.’ (0x2E), to ensure address entry
mode. then a 4‐digit hex address, followed by a slash ’/’ (0X2F) to
enter the data entry mode. The initial address is always present.
There is no need for an additional address record unless there are
gaps.
Each data byte is represented as 2 hexadecimal characters, and is
separated by a carriage return character (0x0D) (advance address). The
final return character may be omitted.
The data is concluded with a period ’.’ (0x2E) to re‐enter address
mode. If an address to start execution is specified, then the last 5
bytes are nnnnG where nnnn is the 4‐digit execution address, and G is
the ’Go’ command.
Size Multiplier
In general, binary data will expand in sized by approximately 3.0 times
when represented with this format.
EXAMPLE
Here is an example ascii‐hex file. It contains the data “Hello,
World[rq] to be loaded at address 0x1000, with execution at 0x1003.
(On a 6502, this is the opcode for indirect jump to 0x2C6F.)
1000/48^M65^M6C^M6C^M6F^M2C^M20^M57^M6F^M72^M6C^M64^M0A^M.1010G
COPYRIGHT
srec_cat version 1.55
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007, 2008, 2009, 2010 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.
AUTHOR
Peter Miller E‐Mail: pmiller@opensource.org.au
/\/\* WWW: http://miller.emu.id.au/pmiller/