[Sharp] MZ-800 Emulator 2.0.3 Preview 2/06/2026

MZ-800 Emulator 2.0.3 Preview 2/06/2026

• New standalone window for disassembling a memory block
• Debugger: added GDG State panel (video subsystem, raster, palette, PCG)
• Debugger: added per-chip detail panels (CTC / PPI / Z80 PIO / PSG)
• Debugger: added PSG Audio Scope window (oscilloscopes, envelope, piano roll, MIDI/CSV export)
• Debugger: Memory Browser window, Memory Diff
• all GTK artifacts and legacy have finally been removed from the project
• MCP server implemented
• Created a virtual CENTRONIX printer that performs automatic capture to a file
• Virtual keyboard: added hint with description of PC key for non-intuitively placed keys
• Breakpoints Window: added Groups section + minor improvements
• Unicard: the SD root directory can now be changed on the fly while the card is connected (automatic reconnect to the new directory; a non-existent or empty directory is initialized just like at startup)
• BUGFIX: MZ-700/1500 keyboard - removed TAB and fixed the Virtual Keyboard layout (key colors kept the original MZ-800 ones)
• BUGFIX: CPU Registers window - the buttons in front of VEC[A/B] and ISR[A/B] had no working right-click menu
• BUGFIX: Breakpoints - an empty breakpoint list could not be saved
• BUGFIX: CPU z80-mz800 showed an already incremented regPC during an unfinished HALT
• BUGFIX: dbgapi: when the CPU is in HALT and regPC is changed manually, it must wake up from HALT (the previous wrong behavior kept waiting for an INT)
• BUGFIX: keyboard - the ALPHA key now also responds to the second PC backslash key (ISO / Oem102 next to the left Shift; CZ layout has two backslash keys)
• BUGFIX: Version Check Setup Window - fixed a z-order issue with the Check period combo
• there were also a few minor corrections in localization

Release v2.0.2-preview (2026-05-21)

• First public release on GitHub. The project has been migrated from SourceForge; this preview release introduces a complete debugger suite, trace analytics tools, redesigned peripheral emulation, and a new in-house Z80 CPU core (z80-mz800).