The SAP1 is an educational model of a "Simple As Possible" microcomputer. It was created by A.P. Malvino in his text Digital Computer Electronics. This emulator incorporates a user interface inspired by YouTuber Ben Eater, who built a physical SAP1 computer out of breadboards and TTL chips, with no microprocessor. I also include an assembler for the tiny SAP1 instruction set, and some sample programs. The ZIP file includes the PDF version of the user manual.