Description

Nextor is an enhanced version of MSX-DOS 2 developed by Konamiman using original MSX-DOS 2 source code.

As announced on September 2018, Mr. Nishi on behalf of the MSX Licensing Corporation granted Konamiman permission to publish the Nextor source code.

While it is backwards compatible with MSX-DOS 2 and to some extend MSX-DOS 1 applications, it does require a new ROM and therefore cannot be used with the MSX-DOS 2 ROM cartridge.

When using this OS, you can boot in MSX-DOS 1 mode or MSX-DOS 2 mode. Generally, the new features are available only in the MSX-DOS 2 mode.

Nextor 2.0 and higher includes version 3 of Disk BASIC and adds new MSX-BASIC Error Messages.

Main new features (compared to MSX-DOS 2.31)

• Native support for the FAT16 filesystem
• Support for MSX1 with Memory Mapper (128kB or more)
• Can boot in MSX-DOS 1 mode
• Support for disk image files (in beta)
• Built-in device partitioning tool that can be adapted to your device (driver system is fully documented).

Products with integrated Nextor

Nextor is integrated into the following products

• 8bits4ever CF-640
• 8bits4ever SD-512
• Carnivore2
• Fractal2000 SD Mapper/Megaram 512kb
• GR8NET
• MSX Cartridge Shop MegaFlashROM SCC+ SD
• Rookie Drive NX

Products compatible with Nextor

Nextor can optionally be used with

• 8bits4ever ATA-620
• One Chip MSX and its various clones like the Zemmix Neo
• Repro Factory My ATA-IDE
• Sunrise ATA-IDE Interface
• Sunrise Compact Flash Card Interface

Links

• Official homepage (Off-line?) New link
• Starting Guide
• User's Manual
• Programmers Reference
• Driver Development Guide
• Driver skeleton for Nextor
• Source code on GitHub
• MSX-DOS Internal Commands