Assembler ROM [Model 00087-15007]
HP-86/87 Option ROM published 38 years ago by Hewlett-Packard
Listed and emulated in MAME !
Assembler ROM © 1982 Hewlett-Packard
The HP 87 Assembler ROM lets you write customized Assembly language programs on the HP 87 personal computer. These programs can be executed from random access memory or from programmable ROMs.