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Re: 64 bit doubles and long long for h8300 targets?
- To: Sebastian Andersson <bofh at diegeekdie dot com>
- Subject: Re: 64 bit doubles and long long for h8300 targets?
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Mon, 19 Jun 2000 11:52:17 -0600
- cc: gcc at gcc dot gnu dot org
- Reply-To: law at cygnus dot com
In message <20000619131825.C14717@diegeekdie.com>you write:
> Hi.
>
> I would like to add 64 bit doubles and 64 bit long longs to
> the h8300hms targets.
Note this will need to be an option since changing the size of a data
type like that would be an ABI change that would make the current
code incompatible with existing code.
> Adding 64 bit floats seem easy (changing DOUBLE_TYPE_SIZE to 64 and
> adding df-bit.c to the t-h8300 file), but what about about a 64 bit
> DI type? Do I have to make a lot of assembler functions for all the
> standard operators or does GCC have build in RTL versions that make use
> the the existing 16/32 bit types?
GCC will use the routines in libgcc2.c.
jeff