This is the Text Document for MOSS22, the Altair 8800 Monitor Program - MOSS Ver 2.2 The files contained in folder 8800-Manual are: MOSS22.PDF - Monitor Pages - extracted MOSS22.TXT - Text File The Monitor (MOSS22) is described in detail in Chapter 3 of the Original Manual found on the Internet as: CCS_2810_Z80_CPU_1980.pdf The appropriate PDF Pages that contain the Monitor Source Code are included in MOSS22.PDF. Those pages were extracted, converted to tif files (450 DPI) and OCR'd with TextBridge Classic. The Text file was then edited, aligned, and proof read several times to give the MOSS22.ASM file. The files contained in folder MOSS22 are: MOSS22.ASM MOSS22.PRN MOSS22.HEX MOSS22.SYM The files contained in folder Z80LIB are: Z80.LIB Z80.DOC The Z80.LIB has to be the file with 9856 Bytes, and needs to be modified so the source assembles properly. The above file, has already been modified. References: http://z80cpu.eu/files/archive/roche/Z80LIB.TXT http://www.retroarchive.org/cpm/os/ Z80.LIB = 9856 Bytes The DRI Assemblers and Manuals can be downloaded from: http://www.s100computers.com/Software%20Folder/Assembler%20Collection/Assembler%20Collection.htm Copy the following files to B: MAC.COM MOSS22.ASM Z80.LIB Z80.DOC Execute the DRI Assembler MAC.COM in CP/M 2.2 with: B: MAC MOSS22.ASM It will Build: MOSS22.HEX MOSS22.PRN MOSS22.SYM Compare the MOSS22.PRN file with the MOS22.PDF file for identical bytes. Larry Kraemer & Garry Kraemer