srec_cosmac(5)

💖 srec_cosmac(5) — RCA Cosmac Elf file format 💖

okay bestie, this is the File Formats Manual page for srec_cosmac, and it's literally all about the RCA Cosmac Elf file format ✨

🌈 NAME 🌈

srec_cosmac — RCA Cosmac Elf file format

🌸 DESCRIPTION 🌸

This file is built out of one or more RCA Cosmac Elf monitor commands, also known as the IDIOT/4 monitor. And the only allowed command in here? The change memory command (!M) — that's the whole guest list, no cap periodt.

The general shape of the !M command is:

!Maaaa dd ... dd

The !M command writes data bytes (each dd is a character pair) into successive memory locations, starting at address aaaa. Spaces between data bytes are ignored — literally, don't stress them.

Using the comma (,) line-continuation character resumes from the next address in sequence:

!Maaaa dd ... dd, dd ... dd

Using the semicolon (;) line-continuation character takes an address on the next line:

!Maaaa dd ... dd; aaaa dd ... dd

It is also possible to have the semicolon immediately after the command:

!M; aaaa dd ... dd

All of these forms may be used in combination. Yes, mix and match, bestie 💅

🎀 Size Multiplier 🎀

In general, binary data will expand in size by approximately 2.0 times when represented with this format. So yeah, highkey it gets bigger — vibe check acknowledged 🌸

✨ EXAMPLE ✨

Here is an example Cosmac file. It contains the data “Hello, World[rq] to be loaded at address 0x1000.

!M1000 48656C6C6F2C20576F726C640A

💅 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 🫶

• Scott Finneran — E‐Mail: scottfinneran@yahoo.com.au
• Peter Miller — E‐Mail: pmiller@opensource.org.au

okay that's the whole page, bestie: Reference Manual · SRecord · srec_cosmac(5) — mwah 💋✨