Writing your first C Program for NitrOS‐9

Building Hello World in C

Equipment:

• Macintosh running OSX

  • will run the c compiler (cmoc)
  • will host the DriveWire server

• Foenix 256x (jr or K) with 6809 CPU and Nitros9 installed

Software:

• cmoc - http://perso.b2b2c.ca/~sarrazip/dev/cmoc.html

  • CMOC is a 6809-generating cross-compiler for a large subset of the C language. I

• lwtools - http://www.lwtools.ca/

  • LWTOOLS is a set of cross-development tools for the Motorola 6809 and Hitachi 6309 microprocessors

• DriveWire Server - https://github.com/boisy/DriveWire

  • DriveWire defines a standard for guest computers to access input/output resources on a host computer

Building Tools

• download and they should compile with OSX command-line-tools, make, sudo make install etc...
• drivewire server requires Xcode, so make sure you have it downloaded. It runs on the latest, 16 in Sequoia.

Builing OS9 Apps

Create the input file:

#include <cmoc.h>

main()
	{printf("hello world\n");}

Compile and link it:

$ cmoc -v
cmoc (cmoc 0.1.86)

$ cmoc --os9 hello.c

Prepare a disk to host with drivewire:

/usr/local/bin/os9 format hello.dsk

/usr/local/bin/os9 copy hello hello.dsk,hello

/usr/local/bin/os9 attr -epe hello.dsk,hello

/usr/local/bin/os9 dump hello

/usr/local/bin/os9 ident hello

Hosting and Running the App

• mount hello.dsk in DriveWire Server (xcode app- run xcode, load project and then run it)

• Connect Macintosh to Foenix via USB to Serial Adapter

• boot F256, dir /x0 and you should see your hello program on the hosted disk image.

To Do:

• Directions on how to host your apps on FujiNet Drivewire!