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-
- WS4-MYZ80
- Version 1.0
- An Overlay for WordStar 4 CP/M
-
- Gene Pizzetta
- February 13, 1993
-
-
- WS4-MY.Z80 is an overlay for WordStar CP/M Release 4 for use under
- the MYZ80 CP/M emulator on IBM-AT compatible machines.
-
- WHAT THIS OVERLAY DOES
-
- After your WordStar 4 receives a copy of this overlay, several
- video attributes will be used so that you can see the effect of
- various printer code toggles, such as ^PB (boldfacing), ^PS
- (underlining), etc. Text within marked blocks will also be
- identified.
-
- The overlay provides for the following screen attributes:
-
- o Normal text is in dim video.
-
- o Boldface (^PB) and Double-strike text (^PD) are in bright
- video.
-
- o Underlined text (^PS), Italic text (^PY), Subscripts (^PV),
- Superscripts (^PT), and Strike-outs (^PX) are underlined
- (alternate color).
-
- o Marked blocks (^KB and ^KK) are in reverse video.
-
- o Error messages blink.
-
- This particular selection allows for all strings surrounded by
- the various printer code toggles to be easily identified on the
- screen so the printed copy will not contain any surprises. Bold
- text strings, the most commonly used printer code toggles, are
- uniquely highlighted on the screen. All other printer toggles
- use the underline attribute (there aren't enough unique
- attributes to go around). This tactic does allow, however, for
- bold strings to be always highlighted, even when other printer
- toggles are active at the same time.
-
- Note that since most IBM color adapters will not display
- underlined characters, underlining will appear as an alternate
- color on most screens.
-
- This overlay makes a few other changes to WS.COM:
-
- (1) The delete character will display as the standard IBM
- character set delete character, instead of "DEL".
-
- (2) The BRITE label is set so WordStar displays normal text in
- dim video.
-
- (3) Various delays have been changed to MicroPro's recommenda-
- tions for a 9-megahertz CPU, which seem to work under MYZ80
- just like they do on my SB180.
-
- INSTALLING THIS OVERLAY
-
- This overlay does not replace terminal installation via WSCHANGE.
- That must be done first, before this overlay can be used.
-
- Call WSCHANGE to modify your copy of WordStar 4, CP/M Edition, so
- you can use it under MyZ80.
-
- After WSCHANGE starts, choose "Console" (item A), then "Monitor"
- (item A again), then "Monitor Selection" (item A for the third
- time). At the monitor selection menu, select "Televideo
- 912/920". Then press "X" to exit monitor selection.
-
- Now choose "Screen Sizing" (item C), and then "Height" (item A).
- At the prompt enter "25". The number of screen lines MUST be set
- to 25 for WordStar to operate properly.
-
- Once those two changes are made, exit the WSCHANGE menus and save
- the changes.
-
- WS4-MY.Z80 can now be installed. First assemble the file into an
- hex code file. You can use nearly any assembler. For SLR's
- Z80ASM, the following command does it:
- Z80ASM WS4-MY/H
- For Al Hawley's ZMAC the command is similar:
- ZMAC WS4-MY /H
-
- Then use Al's MYLOAD to overlay your WS.COM file:
- MYLOAD NWS.COM=WS.COM,WS4-MY.HEX
-
- After you've tested NWS.COM and you're satisfied that everything
- is working okay, use WSCHANGE to change its name to WS.COM, or
- whatever you usually call it, and move it to your WordStar
- directory.
-
- BUG REPORTS
-
- This overlay was adapted from one I did for my TeleVideo 965
- several years ago. That overlay had been based on one I did even
- earlier for my late Commodore 128. MYZ80's attributes required a
- bit of tweeking, however, to get them to work properly. For the
- details, see the comments in the the source code, particularly at
- the label VIDATT.
-
- Bugs should be reported as soon as possible, so I can fix them at
- my leisure.
-
- Gene Pizzetta
- 481 Revere Street
- Revere, MA 02151
- Voice (617) 284-0891
- Newton Centre Z-Node (617) 965-7259