Mark 5 Emulator 1.7.1

Description

Mark 5 Emulator (BML3MK5) is a Hitachi Basic Master Level 3 Mark 5 (MB-6892) emulator for Windows and macOS, source code is also available.

Main functions:

CPU: 0.5 to 16 times speed
RAM: Standard 64KB + Extended 64KB (assuming MP-9764)
Screen display: High resolution up to 640x200 8 colors, IG
Sound: MUSIC_SEL, 6-harmonic PSG (assuming MP-9710), 9-harmonic PSG (I / O August 1983 issue)
Cassette tape input / output
Printer output
RS-232C input / output
Light pen input: emulated with mouse
Kanji ROM: MP-9740 assumed
FDD: Available by selecting

Assuming single-sided single-density (1S) 3-inch compact floppy (MP-3375, MP-1805)
Double-sided (2D) 5.25-inch mini floppy (MP-3550 / MP-3560, MP-1802)
Double-sided double-sided (2D) 8-inch standard floppy (MP-3630, MP-1806)

2020-04-11 Version 1.7.1

Fixed the bug that the KB register was cleared if there was no input after releasing the key.
Fixed the bug that 400ms delay of menu sound cannot be specified.
The screen display when changing the cursor skew of CRTC is closer to the actual machine.
[Debugger] Enabled to see which device generates an interrupt signal when tracing.
[Debugger] Register contents for 100 to 1000 lines are saved for traceback.
[Mac version] Fixed a bug that the screen might not be displayed at the next startup if the application is closed in the full screen state.
[Mac version] Moved the slider of sound volume dialog vertically.