MBR / Bytes to Code Space

[Christopher J. Holland]

Hi,

When a computer is booted, Code is loaded from some external source. i.e.
MBR (Master Boot Record). Right now, The code is being loaded from a 62256.
I would like to be able to run code off a Disk, roll my own MBR and be able
to run small programs off the disk.

P.S. Is there any way of doing it in C?

Thinking...
Has to be addressable to retrieve bytes at different addresses. 32K SRAM So,
the maximum Size of the program would have to be < 32K. Could this be
expanded?
< 32K programs, but multiple programs on disk.

Thanks for your help,

 

[Michel Catudal]

Hi,

When a computer is booted, Code is loaded from some external source. i.e.
MBR (Master Boot Record). Right now, The code is being loaded from a
62256. I would like to be able to run code off a Disk, roll my own MBR and
be able to run small programs off the disk.

P.S. Is there any way of doing it in C?

Thinking...
Has to be addressable to retrieve bytes at different addresses. 32K SRAM
So, the maximum Size of the program would have to be < 32K. Could this be
expanded?
< 32K programs, but multiple programs on disk.

Thanks for your help,

Look at the Linux source code which is written in C.