bml3mk5

bml3mk5 is an emulator dedicated to the Japanese microcomputer Hitachi Basic Master Level-3 Mark 5 (MB-6892), an 8-bit system developed by Hitachi in the 1980s. It reproduces the software and hardware environment of this machine, including its specific BASIC interpreter and peripherals (floppy disks, printers, cassettes). The emulator relies on the SDL library for cross-platform compatibility, with particular attention paid to hardware features and original software.

On macOS, it runs on Apple Silicon (Sequoia) and Intel 64-bit (from High Sierra, 10.13.6 onwards). Earlier versions also supported older systems like El Capitan (10.11) and, in version 1.6.4, 32-bit or 64-bit configurations below Sierra. The emulator includes complementary tools such as a floppy disk explorer, a BASIC file converter, or a printing data management utility, optimized for retrocompatible environments. Advanced features (such as peripheral management) are validated on the latest available versions of macOS.