M4ZVM

M4ZVM
Interpreter
Links	Home page Download
Developer	Shawn Sijnstra
Format	Z-code
Interaction style
System	Tandy TRS-80
System details	TRS-80 Model 4/4D/4P running LS-DOS or TRS-DOS 6.2 (real or emulator)
Latest version	Release 15 / 7 Aug 2022
Status	Stable
Implements
Uses
Multimedia support	No multimedia
License	GPL 2.0
Notes	Note that this interpreter cannot simply be downloaded and run to play game files.
Browse the software database
Edit this infobox

M4ZVM is a Z-machine interpreter for the TRS-80 Model 4/4D/4P running LS-DOS or TRS-DOS 6.2. It was written by Shawn Sijnstra, ported from ZXZVM.

M4ZVM supports Z-machine versions 1, 2, 3, 4, 5, 7, and 8, as well as a minimal non-graphic support for z6.

Features

• Full use of 80x24 screen including support for split screen in all story files including Seastalker
• Reverse text highlighting, including when selected using colour changing codes
• Accented characters (where available)
• Command line switches to optionally enable the Tandy bit or turn off beeps
• z1, z2, z3, z4, z5, z7 and z8 games can execute
• Experimental support for z6 (excludes any graphics/complex screen modelling, can complete Arthur: The Quest for Excalibur with only minor cosmetic issues)
• 128K version allows for any game Dynamic memory/Dynmem (i.e. up to 64K)
• Named game save and load
• Timed input
• Keyboard mapping includes functions keys, with shift F1-F3 mapped to F4-F6, a total of 6 Function keys for games such as Beyond Zork
• Transcript (printing)
• Supports as much memory as your computer and drivers support (128k minimum recommended)
• 64K cut-down version now also available. allowing up to 22K of z-machine Dynmem

M4ZVM is licensed under GPL version 2.

Links

• Gitlab repository including full list of features, M4ZVM source code and binaries.