A Guide to VHDL, Second Edition is intended for the working engineer who needs to develop, document, simulate, and synthesize a design using the VHDL language. It is for system and chip designers who are working with VHDL CAD tools, and who have some experience programming in Fortran, Pascal, or C and have used a logic simulator. A Guide to VHDL, Second Edition includes a number of paper exercises and computer lab experiments. If a compiler/simulator is available to the reader, then the lab exercises included in the chapters can be run to reinforce the learning experience. For practical purposes, this book keeps simulator-specific text to a minimum, but does use the Synopsys VHDL Simulator command language in a few cases. A Guide to VHDL, Second Edition is designed as a primer and its contents are appropriate for an introductory course in VHDL. The VHDL language was updated in 1992 with some minor improvements. In most cases, the language is upward compatible. Although this book is based primarily on the VHDL 1987 standard, this new second edition indicates the significant changes in the 1992 language to assist the designer in writing upwardly compatible code.

In the nearly eight decades since his death from tuberculosis at age thirty-five, singer-songwriter Jimmie Rodgers has been an inspiration for numerous top performers--from Woody Guthrie, Lead Belly, Bill Monroe and Hank Williams to Elvis Presley, Johnny Cash, Dolly Parton, Bob Dylan, and Beck. How did this Mississippi-born vaudevillian, a former railroad worker who performed so briefly so long ago, produce tones, tunes, and themes that have had such broad influence and made him the model for the way American roots music stars could become popular heroes?
In Meeting Jimmie Rodgers, the first book to explore the deep legacy of "The Singing Brakeman" from a twenty-first century perspective, Barry Mazor offers a lively look at Rodgers' career, tracing his rise from working-class obscurity to the pinnacle of renown that came with such hits as "Blue Yodel" and "In the Jailhouse Now." As Mazor shows, Rodgers brought emotional clarity and a unique sense of narrative drama to every song he performed, whether tough or sentimental, comic or sad. His wistful singing, falsetto yodels, bold flat-picking guitar style, and sometimes censorable themes---sex, crime, and other edgy topics--set him apart from most of his contemporaries. But more than anything else, Mazor suggests, it was Rodgers' shape-shifting ability to assume many public personas--working stiff, decked-out cowboy, suave ladies' man--that connected him to such a broad public and set the stage for the stars who followed him.
Mazor goes beyond Rodgers's own life to map the varied places his music has gone, forever changing not just country music but also rock and roll, blues, jazz, bluegrass, Western, commercial folk, and muchmore. In reconstructing this far-flung legacy, Mazor enables readers to meet Rodgers and his music anew--not as an historical figure, but as a vibrant, immediate force.