blocks and overlays question

From	Paul Rubin <no.email@nospam.invalid>
Newsgroups	comp.lang.forth
Subject	blocks and overlays question
Date	2016-09-27 11:22 -0700
Organization	A noiseless patient Spider
Message-ID	<87inth5hk5.fsf@jester.gateway.pace.com> (permalink)

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Can anyone say how overlays traditionally worked in Forth?  E.g. you'd
load some program fragment with block loads, but then how would you get
rid of it when you were done?  With FORGET directly?

How much storage did it take for a block system to make any sense?
Any idea how much disk space (and ram) F83 used?

Motivation of question: wondering about the idea of an F83-like
environment inside an MCU, like one of the cheap Cortex parts with 20k
of ram and 64k or 128k of program flash, using some of the flash as
block storage.

Example: https://www.aliexpress.com/item//32369020878.html

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blocks and overlays question Paul Rubin <no.email@nospam.invalid> - 2016-09-27 11:22 -0700
  Re: blocks and overlays question albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-09-27 20:51 +0200
    Re: blocks and overlays question Paul Rubin <no.email@nospam.invalid> - 2016-09-27 12:36 -0700
      Re: blocks and overlays question "Elizabeth D. Rather" <erather@forth.com> - 2016-09-27 10:16 -1000
        Re: blocks and overlays question Paul Rubin <no.email@nospam.invalid> - 2016-09-27 13:41 -0700
          Re: blocks and overlays question "Elizabeth D. Rather" <erather@forth.com> - 2016-09-27 11:36 -1000
            Re: blocks and overlays question Paul Rubin <no.email@nospam.invalid> - 2016-09-27 15:36 -0700
              Re: blocks and overlays question "Elizabeth D. Rather" <erather@forth.com> - 2016-09-27 13:33 -1000
                Re: blocks and overlays question Paul Rubin <no.email@nospam.invalid> - 2016-09-27 16:54 -0700
          Re: blocks and overlays question albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-09-28 09:44 +0200
  Re: blocks and overlays question hughaguilar96@gmail.com - 2016-09-27 12:22 -0700
  Re: blocks and overlays question foxaudioresearch@gmail.com - 2016-09-27 12:51 -0700
    Re: blocks and overlays question Paul Rubin <no.email@nospam.invalid> - 2016-09-27 13:25 -0700
    Re: blocks and overlays question Mark Wills <markwills1970@gmail.com> - 2016-09-28 03:37 -0700
      Re: blocks and overlays question foxaudioresearch@gmail.com - 2016-09-28 07:41 -0700
        Re: blocks and overlays question Mark Wills <markwills1970@gmail.com> - 2016-09-28 15:05 -0700

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