DISZ80 - RELEASE NOTES ------------------------ DISZ80 is based in the DIS program but produces a source file containing Z80 mnenomics suitable for the Microsoft assembler. DISZ80 also includes significant additional features over its parent DIS. DISZ80 creates a MAP file and supports the extra entry point commands 'S' and 'L'. The MAP file is created at the end of the disassembly and is read on each subsequent disassembly of the same .COM file thus saving the tiresome reentry of all the branch points. The option 'S' provides for CALL statements which are followed by data terminated with a null, for example: call message db 'THIS MESSAGE WILL BE DISPLAYED' db 0 ; message terminator The option 'L' allows for the dissambly of COM files for loading at an address other than 0100H. Unlike the DIS program, DISZ80 produces a file of type M80 instead of a file type DIS. DISZ80 also differs from the DIS program in the action taken when such a file already exists. DIS aborted, whilst DISZ80 continues by renaming the existing file to type BAK. The current release has been tested by the disassembly of the program Z80.COM which includes every standard Z80 instruction. On reassembly, the resulting .COM was identical to the original. D. Powys-Lybbe November 1984 1c Straight Road, Old Windsor, Berks -----------------------------------------------------------------