- ASM51: 8051 Cross Assembler - ADSIM812: ADuC812 Windows Simulator - DEBUG812: ADuC812 Debugger - DLOAD812: ADuC812 Serial Downloader - QuickStart: Hardware Development System The ADuC812 set of development tools incorporate a complete suite of software and hardware design tools that allow you quickly and efficiently design, program, simulate , download and debug your MicroConverter application. Figure 1. below, shows how the tools are used in a typical ADuC812 development environment.