This project aims to create a complete compiler for the TI BASIC programming language. TI BASIC was the dialect of BASIC created for the TI-99/4A.

Current Status

The project is currently in pre-alpha. (Updated 1/20/2007)

Simple programs that do not use any of the graphic or sound subroutines can be parsed and compiled.

Completed

LET (assignment) statements
REM comments
END/STOP
GOTO and ON-GOTO
GOSUB/RETURN
IF-THEN-ELSE
FOR-TO (STEP is not implemented. Counting is by 1)
NEXT
INPUT (from Console)
READ
DATA
RESTORE
PRINT/DISPLAY (to Console)
CALL CLEAR
Multi-dimensional arrays
Numeric Functions (ABS, ATN, COS, EXP, INT, LOG, RANDOMIZE, RND, SGN, SIN, SQR, TAN)
String Functions (ASC, CHR$, LEN, POS, SEG$, STR$, VAL)
DIM
Arithmetic Operators: ^, +, -, *, /
Relational Operators: <, <=, >, >=, =, <>
String Operator: &
Numeric Constants (including Scientific Notation)
String Constants

File I/O (OPEN, INPUT, PRINT, CLOSE, EOF, RESTORE)
Option Base
CALL COLOR
CALL SCREEN
CALL CHAR
CALL HCHAR
CALL VCHAR
CALL SOUND
CALL GCHAR
CALL KEY
CALL JOYST
DEF (user defined functions)
Interpreter commands (NEW, LIST, RUN, BYE, NUMBER, RESEQUENCE, etc.) These will not be implemented, as they only make sense in an interactive mode.