Groups > comp.sys.acorn.programmer > #6213

Re: Getting extra memory

From	Bob Latham <bob@sick-of-spam.invalid>
Subject	Re: Getting extra memory
Newsgroups	comp.sys.acorn.programmer
Message-ID	<58ca40954abob@sick-of-spam.invalid> (permalink)
References	<58ca210e71bob@sick-of-spam.invalid> <rnuovq$107c$1@gioia.aioe.org> <58ca3eaab3bob@sick-of-spam.invalid>
Organization	None
Date	2020-11-04 18:32 +0000

Show all headers | View raw

In article <58ca3eaab3bob@sick-of-spam.invalid>,
   Bob Latham <bob@sick-of-spam.invalid> wrote:
> In article <rnuovq$107c$1@gioia.aioe.org>,
>    Steve Drain <steve@kappa.me.uk> wrote:
> > On 04/11/2020 12:47, Bob Latham wrote:
> > > I'm trying to load a largish file up to 7M in size into memory, make
> > > some changes to it and save it out again.
> >  >
> > >             MOV R0,#16
> > >             ADR R1,Fname1
> > >             ADR R2,workspace
> > >             MOV R3,#0
> > >             SWI "OS_File"; load file
> > > 
> > > error on the file load: Abort on data transfer at &FC1AD8E8.
> > > But the file does load and save.

> > I am puzzled, probably from a shortage of information. Where is 'workspace'?

> > If you are calling this code from BASIC I would assume you are
> > loading the file above HIMEM. Therefore there would have to be
> > code to find that. Then you must account for the fact that HIMEM
> > is an absolute address but Wimp_SlotSize is for the memory in
> > the application slot above &8000. Is that any help?

> > Perhaps you could claim a dynamic area more simply. ;-)

> I rather suspect you're on the nail Steve.

> In the light of those thoughts I need to have a look and think.

All fixed now. It was HIMEM it just didn't cross my mind. It explains
why it was the Basic module that was moaning.

Thanks Steve.


Cheers,

Bob.

-- 
Bob Latham
Stourbridge, West Midlands

Back to comp.sys.acorn.programmer | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Getting extra memory Bob Latham <bob@sick-of-spam.invalid> - 2020-11-04 12:47 +0000
  Re: Getting extra memory Martin <News03@avisoft.f9.co.uk> - 2020-11-04 13:17 +0000
    Re: Getting extra memory Bob Latham <bob@sick-of-spam.invalid> - 2020-11-04 13:48 +0000
      Re: Getting extra memory Martin <News03@avisoft.f9.co.uk> - 2020-11-04 17:23 +0000
        Re: Getting extra memory Bob Latham <bob@sick-of-spam.invalid> - 2020-11-04 18:04 +0000
          Re: Getting extra memory Martin <News03@avisoft.f9.co.uk> - 2020-11-04 18:44 +0000
            Re: Getting extra memory Bob Latham <bob@sick-of-spam.invalid> - 2020-11-04 22:03 +0000
      Re: Getting extra memory druck <news@druck.org.uk> - 2020-11-04 18:06 +0000
        Re: Getting extra memory Bob Latham <bob@sick-of-spam.invalid> - 2020-11-04 18:33 +0000
  Re: Getting extra memory Steve Drain <steve@kappa.me.uk> - 2020-11-04 17:38 +0000
    Re: Getting extra memory Bob Latham <bob@sick-of-spam.invalid> - 2020-11-04 18:11 +0000
      Re: Getting extra memory Bob Latham <bob@sick-of-spam.invalid> - 2020-11-04 18:32 +0000

csiph-web