esxDos

esxDos is one of the operating systems that is integrated into the Next. It provides a posix-like api to access the sd card as disk and it provides a familiar basic interface to the disk from basic. The current version of ESXDOS is 0.8.6; a new version 0.9.x is being written for the Next. esxDos currently only supports the so-called USR0 mode in BASIC (single keyword/48K Basic)

USING FROM BASIC

-directory structure

-navigating directories

-dot commands

-tap files

-snapload

-new things coming

PROGRAMMING WITH ESXDOS

-dot commands versus main ram

-close handles when done

-machine code

-posix-like api similar to working with file descriptors

-c

--posix-like api same as for machine code but errno is properly managed

--creating dot commands and extended dot commands

---the command line

---generating custom error messages on exit