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From: cik@l.cc.purdue.edu (Herman Rubin)
Newsgroups: comp.lang.c
Subject: Re: Type punning in C
Summary: Integer <-> floating point
Message-ID: <1656@l.cc.purdue.edu>
Date: 13 Oct 89 12:57:21 GMT
References: <475@idacrd.UUCP> <10950@riks.csl.sony.co.jp>
Organization: Purdue University Statistics Department
Lines: 20

In article <10950@riks.csl.sony.co.jp>, diamond@csl.sony.co.jp (Norman Diamond) writes:

			............................

> On the other hand, how many hardware architectures have instructions
> to transfer directly between integer registers and floating registers?
> Usually you have to store it to RAM and load it back anyway.

			............................

Most of the machines I am familiar with either have registers which can
be used for integer or floating point arguments.  Some of them have
an index type (shorter integer) but those can convert between short
integer and long..  These machines include VAX, PYRAMID, CDC 6x00
and descendents, CRAY, CYBER 205 and ETA 10, and even vector mode
on the IBM 3090.
-- 
Herman Rubin, Dept. of Statistics, Purdue Univ., West Lafayette IN47907
Phone: (317)494-6054
hrubin@l.cc.purdue.edu (Internet, bitnet, UUCP)