tcbasic is a small BASIC Interpreter written in C.
The "basics" are done and working. The interpreter implements the Tiny BASIC dialect of BASIC with added support for floating point numbers and many of the built-in mathematical functions in Dartmouth BASIC. Development will continue with the goal of implementing successively more complete dialects of BASIC.
- C compiler and standard build tools (make, sh, ...).
- cmake
Standard cmake build (make test runs the test suite):
$ cd bin
$ cmake ..
$ make
$ make test
# make install
Start the interpreter in interactive mode:
$ tcbasic
Execute a program from a file in batch mode:
$ tcbasic sample.bas
10 REM Square Root Calculator using Newton's Method
100 LET X = 1337
400 GOSUB 1000
500 PRINT "The square root of ",X," is approximately ",Y
600 END
1000 REM Calculate the square root of a given Number
1001 REM Expects input to be in X. Output will be in Y.
1002 REM Uses Z as a temporary variable.
1050 LET Y = 0.5 * X
1100 LET Z = Y
1200 LET Y = Y-(((Y^2)-X)/(2*Y))
1300 IF Z <> Y THEN GOTO 1100
1400 RETURN
See LANG.md
See COPYING for the full license. Here's a summary:
tcbasic - a small BASIC Interpreter written in C.
Copyright (C) 2015, 2016, 2017, 2018, 2020 Thomas Cort <[email protected]>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.