Xilinx Ise 10.1 Guide

ISE 10.1 refined the SmartCompile feature, which included:

Prior to ISE 10.1, many users relied solely on ModelSim. Version 10.1 introduced a more robust free simulator, ISim. While slower than ModelSim for massive designs, it was sufficient for Spartan-3 and mid-range Virtex-4 projects, eliminating the need for a separate ModelSim license for basic verification. xilinx ise 10.1

ISE 10.1 came tightly integrated with ChipScope Pro (version 10.1). This in-system logic analyzer allowed engineers to probe internal signals on a running FPGA without bringing pins out to a scope. For debugging a glitch on a Virtex-4, this was revolutionary. ISE 10