( ESNUG 200 Item 3 ) ---------------------------------------------- [10/28/94]
Subject: (ESNUG 199 #6) "Is 1993 VHDL Syntax FULLY Supported in VSS?
> Question 1:
> Does Synopsys ver 3.1b fully support 1993 syntax VHDL ? (YES/NO)
> If NOT fully supported, then WHAT other syntax should I be aware of?
>
> Question 2:
> Do I have to code using only 1987 syntax to be on the safe side ? (YES/NO)
From: John.Messenger@proteon.com (John Messenger)
To question 1: No, VSS version 3.1b doesn't fully support ANSI/IEEE Std
1076-1993 and does not claim to.
To question 2: Yes, you have to code only in 1987 syntax to stay on the
safe side. Even then, if you're a purist, watch out because (like most
simulators) there are some differences. The most annoying is that it
restricts the range of universal integer to 32bit values (which is not
allowed). So if you say USE_LONGTIME = TRUE and then say (NOW / 1 fs),
you may get a crash.
- John Messenger
Proteon International
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