Re: you can't bash Microsoft enough

On May 2, 5:42 pm, John Larkin
<jjlar...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
On 2 May 2007 15:11:11 -0700, MooseFET <kensm...@xxxxxxxxx> wrote:



On May 2, 8:18 am, John Larkin
<jjlar...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
On Wed, 02 May 2007 09:31:56 +0100, Paul Burke <p...@xxxxxxxxxx>
wrote:

jasen wrote:

linux in less than 256 kilobytes ???
====

was that ever possible?

Sorry, meg of course. Still harking back to the days of OS9 with 64kb
RAM....

My embedded products use a cpu with 2K bytes of on-chip ram. I've
rarely needed more, even on products with user interfaces and eternet.

2K bytes, Luxury! I did a multitasking[1] OS in 256 bytes.

[1] 3 is multiple, isn't it.

That ain't a lot of room to save even three contexts on three stacks.

Which CPU?

It was 8052. The fact that the registers are 8 memory locations and
the PSW selected which 8 made pushes for them not needed. There are 4
banks but we had to have one free.


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