ESSEX JUNCTION, Vt. — Adding to its Windows NT support, Green Mountain Computing Systems will release a Linux version of its VHDL Compiler this month. This release is a "professional" version that includes features not available with the company's low-cost "educational" VHDL simulators.

The Green Mountain VHDL Compiler is an IEEE 1076-93-compliant, native-compiled simulator, said Scott Thibault, president of Green Mountain, based here. Compared with the company's educational versions, he said, the professional version offers faster compilation and simulation, adds source-level debugging, includes support for the Vital ASIC library standard and offers Standard Delay Format (SDF) back-annotation.

The Linux version uses the X11 windowing system and includes such debugging features as a waveform display and source-level debugging with single-stepping and breakpoints. Performance is enhanced with 32-bit native compilation, and Vital models are optimized for post-route simulations.

Thibault said the Linux version runs "slightly faster" than the Windows NT model and has better memory performance. It requires an 80386 PC or better running Linux and X11, 10 Mbytes of hard disk and 32 Mbytes of RAM.

The VHDL Compiler Professional Edition for Linux is priced at $595 and is available from the company's Web site.