Vezza

Vezza
Interpreter
Links	Home page Download
Developer	Shawn Sijnstra
Format	Z-code
Interaction style
Systems	CP/M, Amstrad CPC, Apple II, Tandy TRS-80
System details	Requires minimum z80 and CP/M 3. Current builds support VT-52, HGT and Soroc 120 terminal emulations.
Latest version	Pre-release / 22 Sep 2022
Status	Beta
Implements
Uses
Multimedia support	No multimedia
License	GPL 2
Notes	Note that this interpreter cannot simply be downloaded and run to play game files.
Browse the software database
Edit this infobox

Vezza is a Z-machine interpreter for CP/M version 3 and above, requiring a z80 CPU minimum. Tested on multiple hardware versions. It was written by Shawn Sijnstra, ported from M3ZVM and M1ZVM.

Vezza supports Z-machine versions 1, 2, 3, 4, 5, 6*, 7, and 8 within memory limitations. z6 support is limited to non-graphics and has many workarounds to reduce to the standard screen model.

Licensed under GPL version 2.

Download binaries, along with a fuller list of features and limitations from Vezza on Gitlab

Features

• Full use of screen (no missing last column except Soroc)
• Reverse text & simulated bold
• Accented characters are translated
• Command line switch to optionally enable the Tandy bit
• Named game save and load
• Timed input (limited to 1 second resolution)
• z1-z5 games recommended
• Has a small LRU disk cache to reduce I/O
• Allows game with up to 22k Dynmem to run (up to 32K in banked CP/M versions)

Limitations

• Release is beta so expecting some issues/unexplained behaviour
• Limited terminal compatibility today: VT-52, HGT and Soroc 120 versions available
• See web site for more details