Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!spool.mu.edu!samsung!olivea!ptimtc!rdmei!mewserv!saturn!srl!tom From: tom@srl.mew.mei.co.jp (Tom Borgstrom) Newsgroups: comp.lang.vhdl Subject: Behavioral models with >32-bit integers Message-ID: Date: 26 Feb 91 01:57:30 GMT Sender: news@saturn.srl.mew.mei.co.jp Organization: Matsushita Electric Works, Ltd. Lines: 22 I have been using 's VHDL tool to simulate a behavioral-level model of parts of a 32-bit microprocessor that require 32-bit unsigned integers. This is what I tried to do: type long is range 0 to 4294967295; The VHDL tool flagged this as an error, complaining about an integer overflow. My questions are: 1) Do other VHDL analyzers/simulators have less restrictive bounds on the range constraint of integer types? 2) Is there a better way of doing behavioral models with > 32-bit integers? -tom == Thomas H. Borgstrom tom@mew.mei.co.jp Semiconductor Research Lab telephone: +81 6-908-1431 Matsushita Electric Works facsimile: +81 6-906-7251 1048 Kadoma, Osaka 571 Japan