BASICtools for ARM

The syntax of this BASIC is much like the original Microsoft BASIC, QBASIC or early versions of Visual BASIC.

As part of the compile process a modified version of the C pre-processor is called that allows #include, #define, #ifdef ... #endif, #if ... #endif, #error and #warn

Support for interrupts, floating point accelerators, and multi-tasking.

On DOWNLOAD an executable installer will be downloaded.

Declarations
DIM	declares a variable or array
AS INTEGER	declares an integer variable
AS SINGLE	declares a floating point variable
AS STRING	declares a string
AS BYTE	declares an array of bytes
PARAMARRAY	declares a variable number of arguments
CONST	declares an integer, single, string or array constant
SUB	declares a subroutine
FUNCTION	declares a function that returns a value
INTERRUPT SUB	declares an interrupt subroutine
' a comment	comments

Control Flow
DO.. UNTIL	repeats a block of statement
FOR.. NEXT	iterates a block of statemets
IF..THEN.. ELSE..ENDIF	conditional execution
SELECT..CASE	conditional execution
WHILE.. LOOP	repeats a block of statements
GOTO	transfers control
GOSUB	call subroutine or function (not required)
RETURN	return from subroutine or function
MAIN	start of a program
EXIT	terminates a block of statements
STOP	enters a debug monitor

Hardware function
AD	returns analog value on specific pins (10 bit)
BAUD	sets the baud rate on the serial channel
RXD	receive a character on the serial channel
TXD	send a character to the serial channel
*(expression)	access hardware registers (like PEEK or POKE)
DIR	controls direction of a pin
HIGH	sets a pin to output and high
IN	reads digital value of a pin
INPUT	sets a pin as an input
IO	controls or reads a pin
LOW	sets a pin as output and low
OUT	sets state of an output pin
OUTPUT	sets a pin to be an output
INTERRUPT	enable or disable interrupts
TIMER	returns free running counter incrementing each microsecond
WAIT	waits a number of milliseconds
WAITMICRO	waits a number of microseconds

Strings
LEN	returns the number of bytes in a string
LEFT	returns a number of characters on the left of a string
RIGHT	returns a number of characters on the right of a string
STRCHR	finds first instance of a character in a string
STRCOMP	compares two strings
SPRINTF	C style string formating

Trig functions
cos	returns the cos of the radians passed
sin	returns the sin of the radians passed
tan	returns the tangent of the radians passed

Power Functions
sqrt	returns the square root
exp	returns e to the x power
logn	returns natural log
log10	returns 10 based log
pow	returns number raised to power

Conversion
fix	integer value of single, conversions also implied
floor	rounds down
ceil	rounds up
round	rounds to closest integer

Inverse Trig functions
acos	arc cosine
asin	arc sine
atan	arc tangent

Hyperbolic functions
cosh	hyperbolic cosine
sinh	hyperbolic sine
tanh	hyperbolic tangent

Register definitions
LPC11U37.bas	defines registers of the LPC11U37 accessed thru pointers

String Functions
midstr	extracts characters from a string forming a new string
strchr	finds a character in a string
strstr	finds a string in a string
tolower	converts a string to lower case
toupper	converts a string to upper case

I2C operations
I2CIN	read an I2C device
I2COUT	write to an I2C device

SPI functions
SPIIN	read an SPI device
SPIOUT	write to an SPI device

SHIFT functions
SHIFTIN	read to a non-byte oriented serial device
SHIFTOUT	write to a non-byte oriented serial device

Onewire functions
OWIN	read a one wire device
OWOUT	write to a one wire device

PWM functions
HWPWM	library hardware PWM functions, using counter peripheral

Conversions
CHR	converts an ASCII character to a number
HEX	returns hex value of a string
VAL	converts a string to a decimal number

Console functions
DEBUGIN	accepts input from console
PRINT	prints to the console
PRINTF	formatted print (C conventions)

Operators
-	subtraction
MOD	modulus arithmetic
*	multiply
/	divide
-	negate
&	string concatenation
IF	ternary operation
NOT	binary negate
AND	binary or conditional and
OR	binary or conditional or
XOR	binary or conditional exclusive or
>>	shift right
<<	shift left
=	equality
<>	not equals
<	less than
<=	less than or equal to
>	greater than
>=	greater than or equal to

These are added for backward compatibility, but most have been replaced

PBASIC functions
COUNT
PULSIN
PULSOUT
PWM
RCTIME
FREQOUT