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- Path: lou.teclink.net!usenet
- From: rad@teclink.net (rad)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Will the PPC split up the Amiga community?
- Date: 20 Mar 1996 03:53:07 GMT
- Organization: TECLink Internet Services: info@TECLink.Net
- Message-ID: <1517.6652T1292T2538@teclink.net>
- References: <314D0F1D.3BEC@sapiens.com>
- NNTP-Posting-Host: tc2_52.teclink.net
- X-Newsreader: THOR 2.2 (Amiga;TCP/IP) *UNREGISTERED*
-
- Avi Lev <avil@sapiens.com> wrote:
- >Jolyon Ralph wrote:
- >>
- >> > you know how it will work on Ami ? i.e. mix PPC code & 68k code ?
- >> > for example what about emulated 68k code doing lib calls of
- >> > a PPC-code lib ?
- >>
- >> No. And I'd like to know that ASAP....
- >>
- >> Jolyon
-
- >it will NEVER work properly since the register mappings are completely
- >different between the 2 processors, and if functions in libraries, written
- >in PPC native code, return the result in some PPC register, it will not have
- >to be in d0 under 68k emulation when it gets back to the calling routine
- >running under emulation.
-
- It is very much possible (if fact probably) that it will work. What will have
- to be done in order to make it work is that PPC libraries will have to be
- broken into to classes... the PPC only ones and the 68K callable PPC ones.
- All that is required to make it work is some additional restrictions on which
- registers are used for what in the compatible PPC libraries and some
- indication whether the file is compatible or not. (Similar restrictions
- exist on the MacOS.)
-
- -Rad
-
- ---------------------------------------------------------------------------
- - Richard Deken EMail: (personal) rad@teclink.net -
- - VLSI Design Engineer (AuE) rad@aue.com -
- - Advanced Microelectronics PGP public key available -
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