... VHDL resulted from workdone in the ’70s and early ’80s by the U.S. Departmentof Defense. Its roots are in the ADA language, as will beseen by the overall structure of VHDL as well as otherVHDL ... •LondonMadrid •Mexico City •Milan •New Delhi •San Juan Seoul •Singapore •Sydney •TorontoCopyright © 2002 by The McGraw-Hill Companies, Inc. All rights reserved. Manufactured in the United States of America. ... Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form orby any means, or stored in a database or retrieval system, without the prior written permission...