Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!uunet!glyph!nichiren
From: nichiren@glyph.UUCP (Andy Heffernan)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Re^2: Atom / putting hunks in CHIP/FAST memory.  and, 1.4 request
Message-ID: <194@glyph.UUCP>
Date: 6 May 89 04:07:48 GMT
References: <8905012052.AA25549@postgres.Berkeley.EDU> <239@medusa.informatik.uni-erlangen.de> <190@glyph.UUCP> <247@medusa.informatik.uni-erlangen.de>
Reply-To: nichiren@glyph.UUCP (Andy Heffernan)
Organization: Glyph UNIX, Kingston, NY
Lines: 39

In article <247@medusa.informatik.uni-erlangen.de> mlelstv@immd4.informatik.uni-erlangen.de (Michael van Elst ) writes:
			[...]
>The only thing that I want to point on is, that memory type information
>isn't placed in the hunk type fields BUT in the hunk size field.

That's not what I see.

A simple source file like:

----------------------------------------------------------------------
| int lonelyint;                                                     |
----------------------------------------------------------------------

When compiled with Lattice 5.02 using the -ab option (forcing bss data
to be allocated from chip RAM) produces an object file that looks like:

----------------------------------------------------------------------
| 0000: 000003E7 00000002 74657374 2E630000    ...g....test.c..      |
| 0010: 000003E9 00000000 000003F2 400003EB    ...i.......r@..k      |
| 0020: 00000001 000003EF 01000003 5F6C6F6E    .......o...._lon      |
| 0030: 656C7969 6E740000 00000000 00000000    elyint..........      |
| 0040: 000003F2                               ...r                  |
----------------------------------------------------------------------

Note the two long words at offset 0x1c.
        400003EB        hunk_bss_chip (hunk_bss with bit 30 set)
        00000001        allocate 1 long word at load time

Similar games can be played with code and initialized data hunks.


>                                Michael van Elst
>
>E-mail: UUCP: ...uunet!unido!fauern!faui45!mlelstv

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Andy Heffernan              uunet!glyph!nichiren            [1222 - 1282]
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