dsvz200 (Dick Smith VZ200 emulator)

This computer software is Freely distributable.


Emulates the VZ200 or VZ300 model computers (1980's).

(Default is VZ300 with 16K RAM Pack and Double Disk Drives, without the Joystick interface activated.)


Copyright Gavin Turner, Christchurch, New Zealand

"This software emulates my first computer the VZ200"

1K CHESS was written by David R Horne 1983 for the ZX81


This Package includes a Z80 assembler that builds and automatically launches builds in the emulator, showing comments next to the source code in the Debug Screen, Note the included Z80 assembler will not build and run in the emulator if VZ.exe does not exist at "C:\Program Files (x86)\VZ".


The Installation Path for Windows 98se and Windows XP is

C:\Program Files\VZ

The Correct Program Installation Path for Windows 7 and above is

C:\Program Files (x86)\VZ


* Compatible with Windows 98se, XP, 7, 8, 10 

* Compatible image files .cvz (cassette) or .dvz (floppy disk)


Assembled using FASM (Free Assembler) 32-bit Assembler 

Coded in x86 32 bit assembler by Gavin Turner

Version 1.1, Build Date 26 April 2020

This computer software is Freely distributable.



Some Keyboard Shortcuts:

* Alt - Toggles full screen mode

* F1 - Debug Screen / Single Step

* F2 - Exit Debug Screen

* F3 - Exit Debug Screen with Disabled Break Points

* F4 - Toggle Window Size

* F7 - Cassette Tape Audio Generator

* F8 - Poke Tool

* F9 - Open File Dialog

* F11 - Assign .dvz image file to Drive One

* F12 - Assign .dvz image file to Drive Two

* Space Bar (Debug Screen) Toggle Break Point


Tip: Double Click on "Options" to Reset Computer
Double Click on "File" to for Open File Dialog
Drag and Dropping .dvz images Loads Disk Drive 
Uncheck "File/Persistance" to Clear emulator at start.


Emulation Speed Technical Information (Defaults):

Z80 8-Bit Processor (6847 Video Display Processor) 

71136 CPU Cycles Per Display Frame

312 Rows Per Display Frame

50 Frames Per Second


This computer software is Freely distributable.
