Code A Parser for GNUSim8085 Assembler Listings I've been building an 8 bit microcomputer around the classic Intel 8085 processor. I found this excellent open source program, GNUSim8085, a "graphical simulator, assembler and debugger for the Intel 8085 microprocessor
Electronics Digital Clock - 7490 Decade Counters and a Hacked Quartz Clock No microcontrollers needed here! I was playing with some 7490 decade counters and decided to build a digital clock.