A C implementation of Tiny Basic, with a focus on support for Arduino. It was originally written by Gordon Brandly in the form of "68000 Tiny Basic", and then ported to C by Michael Field as "Arduino Basic", though still called "Tiny Basic" in the source files.
TinyBasic Plus is an extension and modification upon the original "Tiny Basic" by adding support for a few more devices, configurable at build time. It is designed for use on the Arduino, although builds will soon be easily possible for other platforms through command line makefiles. Provided is a makefile that builds for unix-ey type OSes. It has only been tested for Darwin (OS X).
Features added include support for fileio (SD Library), autorunning a program from the SD card, smaller footprint (PROGMEM), support for pin data IO, and support for the on-chip EEProm storage for your program.
NOTE: "PINMODE" command removed as of version 0.11
NOTE: TONE commands are by default disabled
Here are a few example programs to get you started...
Let a user enter a new value for a variable, enter a number like '33' or '42', or a varaible like 'b'.
10 A=0
15 B=999
20 PRINT "A is ", A
30 PRINT "Enter a new value ";
40 INPUT A
50 PRINT "A is now ", A
hook up an LED between pin 3 and ground
10 FOR A=0 TO 10
20 DWRITE 3, HIGH
30 DELAY 250
40 DWRITE 3, LOW
50 DELAY 250
60 NEXT A
hook up an LED between pin 3 and ground
10 FOR A=0 TO 10
20 FOR B=0 TO 255
30 AWRITE 3, B
40 DELAY 10
50 NEXT B
60 FOR B=255 TO 0 STEP -1
70 AWRITE 3, B
80 DELAY 10
90 NEXT B
100 NEXT A
hook up a potentiometeter between analog 2 and ground, led from digital 3 and ground. If knob is at 0, it stops
10 A = AREAD( 2 )
20 PRINT A
30 B = A / 4
40 AWRITE 3, B
50 IF A == 0 GOTO 100
60 GOTO 10
100 PRINT "Done."
Write a small program, store it in EEPROM. We'll show that variables don't get erased when chaining happens
EFORMAT
10 A = A + 2
20 PRINT A
30 PRINT "From eeprom!"
40 IF A = 12 GOTO 100
50 PRINT "Shouldn't be here."
60 END
100 PRINT "Hi!"
Then store it in EEProm
ESAVE
Now, create a new program in main memory and run it
NEW
10 A = 10
20 PRINT A
30 PRINT "From RAM!"
40 ECHAIN
List both, and run
ELIST
LIST
RUN
Tiny Basic 68k - Gordon Brandly Project Page (via archive.org)
Arduino Basic / Tiny Basic C - Michael Field Project Page
Tiny Basic Plus - Scott Lawrence yorgle@gmail.com Github Page
Jurg Wullschleger - Fix for unary operations and whitespace in expressions
Mike Field based his C port of Tiny Basic on the 68000 Tiny BASIC which carried the following license:
******************************************************************
* *
* Tiny BASIC for the Motorola MC68000 *
* *
* Derived from Palo Alto Tiny BASIC as published in the May 1976 *
* issue of Dr. Dobb's Journal. Adapted to the 68000 by: *
* Gordon Brandly *
* 12147 - 51 Street *
* Edmonton AB T5W 3G8 *
* Canada *
* (updated mailing address for 1996) *
* *
* This version is for MEX68KECB Educational Computer Board I/O. *
* *
******************************************************************
* Copyright (C) 1984 by Gordon Brandly. This program may be *
* freely distributed for personal use only. All commercial *
* rights are reserved. *
******************************************************************
However, Mike did not include a license of his own for his version of this. From discussions with him, I felt that the MIT license is the most applicable to his intent.
I am in the process of further determining what should be done wrt licensing further. This entire header will likely change with the next version 0.16, which will hopefully nail down the whole thing so we can get back to implementing features instead of licenses. Thank you for your time.
Copyright (c) 2012-2013
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.