Download MMBasic Language Manual

MMBasic is a Microsoft BASIC compatible implementation of the BASIC language with floating point and
string variables, long variable names, arrays of floats or strings with multiple dimensions and powerful string
handling. MMBasic was originally written for the Maximite, a small computer based on the PIC32
microcontroller from Microchip. It now runs on a variety of hardware platforms including DOS.
This manual describes the MMBasic language. For details of running MMBasic on specific platforms please
refer to the following documentation or websites:
Maximite, mini-Maximite:
Maximite Hardware Manual
from: http://geoffg.net/maximite.html
UBW32 experimenter board: Colour Maximite on the UBW32 from: http://geoffg.net/ubw32.html
DOS:
DOS MMBasic ReadMe
from: http://mmbasic.com/downloads.html
DuinoMite series:
DuinoMite MMBasic ReadMe included with the DuinoMite update.
CGMMSTICK1 and CGCOLORMAX2 boards from CircuitGizmos go to http://www.circuitgizmos.com
DTX2-4105C module from Dimitech go to http://dimitech.com
TFT Maximite go to http://github.com/heise/MAXIMITE
Throughout this manual Maximite or MM refers to the original monochrome Maximite family (Maximite, mini
Maximite, CGMMSTICK1, DuinoMite and the DTX2-4105C). Colour Maximite or CMM refers to the Colour
Maximite which also includes the UBW32, TFT Maximite and the CGCOLORMAX2. DOS refers to the
version that runs in a DOS box under Windows.
Contents
Functional Summary............................................................................................................... 3
Full Screen Editor ................................................................................................................... 5
Input/Output............................................................................................................................ 7
Audio and PWM Output.......................................................................................................... 8
Special Hardware Devices ..................................................................................................... 9
Graphics and Working with Colour ....................................................................................... 15
Game Playing Features........................................................................................................ 17
Defined Subroutines and Functions...................................................................................... 18
Implementation Details ......................................................................................................... 21
Predefined Read Only Variables .......................................................................................... 23
Commands ........................................................................................................................... 24
Functions.............................................................................................................................. 46
Obsolete Commands and Functions .................................................................................... 54
Appendix A Serial Communications ..................................................................................... 55
Appendix B I2C Communications.......................................................................................... 57
Appendix C 1-Wire Communications.................................................................................... 63
Appendix D SPI Communications......................................................................................... 64
Appendix E Loadable Fonts ................................................................................................. 66
Appendix F Special Keyboard Keys ..................................................................................... 67
Appendix G Tera Term Setup............................................................................................... 68
Appendix H Sprites............................................................................................................... 69
Appendix I Random File I/O ................................................................................................. 71
MMBasic Language Manual
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