UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 15151

5.1i XST - The REAL VHDL data type is supported in the 5.1i software (with certain limitations)

Description

Keywords: REAL, VHDL, data, type, XST, float, double

Urgency: Standard

General Description:
XST can now process REAL DATA types, with the following limitations:

1. LOG, ARCTAN, ARCTANH, ARCCOSH, ARCSINH functions will all return incorrect values.
2. The REALMAX function will return the smallest real number instead of the largest real number.
3. XST will truncate large real numbers.

Solution

This problem is fixed in the latest 5.1i Service Pack, available at:
http://support.xilinx.com/support/techsup/sw_updates
The first service pack containing the fix is 5.1i Service Pack 1.
AR# 15151
Date Created 07/15/2002
Last Updated 07/18/2007
Status Archive
Type General Article