TIASM is a cross-assembler in written in C for the TI TM990/U89 "University Board" TMS9900 microprocessor trainer. It was developed at the University of New Mexico in the mid-1980's by Lee Ward and others. This version consists of Ward's original version as posted to net.sources on Usenet, in July of 1984. Dr. Bruce Wampler of UNM announced what appears likely to have been an improved later version in net.sources, in February of 1986. (Crossposted to net.micro and net.micro.ti- the antecedent of comp.sys.ti.) That version is not included, but, for completeness, the the announcement is. It can be found along with Ward's original notice, and the posted Unix shar archives, in the usenet subdirectory. The contents of this directory are all as retrieved from Google on 2002-03-18. The source, documentation, and test archives have been extracted into src, doc, and test subdirectories respectively, but have not been modified otherwise. At a minimum, the file i/o macros in mio.h will need to be corrected to compile with gcc 2.95.3 on Linux. Please direct comments or pointers to later versions of the code to jbdigriz@dragonsweb.org. James B. DiGriz 2002-03-18