The 8085A Cookbook is a Blacksburg Continuing Education Series book from Howard W. Sams, 1980. About 350 pages. Authors: Christopher A. Titus, Jonathan A. Titus, and David G. Larsen. Same Sams orange-and-black shelf as the other cookbooks. The subject is the Intel 8085A as hardware you can wire - clocks, multiplexed bus, memory, I/O, interrupts - then enough software to bring a board up.
Jonathan A. Titus designed the Mark-8 (Radio-Electronics, July 1974). Christopher A. Titus wrote TEA and a pile of the 8080/8085 software titles. David G. Larsen was the third leg of the Blacksburg team with Peter Rony on the earlier Bugbooks. Together they taught the 8080/8085 family the way Lancaster taught 7400 and 4000 parts: circuits first, then the code that makes them move.
Opens with the 8085A itself: pinout, architecture, instruction-set overview, clock and reset, supplies, and how it differs from the 8080 (on-chip clock generator, multiplexed address/data bus, extra interrupts, SID/SOD). Then memory maps (RAM, EPROM, decode), I/O (parallel ports, UARTs, keyboard and display), control pins (READY, HOLD, HLDA, WAIT), interrupts, and bus expansion. Schematics run from a minimal single-board machine to boards with cassette, video, and printer ports. Software chapters: monitors, debug, short utilities. Appendix: pinouts, timing, parts.
The 8085 multiplexes AD0-AD7, so a real board needs an address latch - typically a 74LS373 - plus a crystal (often in the 6 MHz neighborhood) and a clean reset. Common partners in these pages are the 8155/8156 RAM+I/O+timer and 8355/8755 ROM+I/O parts Intel sold as the MCS-85 set. That is the three-chip computer story: CPU, ROM, RAM/timer, and you are on the air. Wire-wrap and perfboard are assumed. The book is how a lot of people left the 8080 front panel and built a small controller that actually reset and ran a monitor.
This volume sits with 8080/8085 Software Design Books 1 and 2, TEA, the Bugbooks, and the 8080/8085 hardware on the floor. Titus, Larsen, and Titus taught the 8080/8085 family the way the rest of this shelf taught gates and video: circuits first, then the code that makes them move.