PBASIC Operators

(See Operator Precedence for details of the sequence in which expression operators are evaluated.)

Binary and Unary Operators

There are two types of operators in PBASIC, binary operators which require two arguments (such as the addition operator in 2 + 3) and unary operators which require one argument (such as the negate operator in -5). All the PBASIC operators are shown below, grouped under binary operators or unary operators. Click on any operator to see a full description on the Binary Operator or Unary Operator page.

Notes about the 16-bit workspace

Many of the operator descriptions will say something like "computes (some function) of a 16-bit number." This does not mean that the operator does not work on smaller byte or nibble values, but rather that the computation is done in a 16-bit workspace. If the value is smaller than 16 bits, the BASIC Stamp pads it with leading 0s to make a 16-bit value. If the 16-bit result of a calculation is to be packed into a smaller variable, the higher-order bits are discarded (truncated).

Binary Operators
	• +			Addition
	• -			Subtraction
	• *			Multiplication
	• **			Multiply High (Return Upper 16 Bits)
	• */			Multiply Middle (Return Middle 16 Bits)
	• /			Division
	• //			Modulus (Remainder of Division)
	• MIN			Limit a Value to Specified Low
	• MAX			Limit a Value to Specified High
	• DIG			Return Specified Digit of Number
	• REV			Reverse Specified Number of Bits
	• <<			Shift Bits Left by Specified Amount
	• >>			Shift Bits Right by Specified Amount
	• &			Bitwise AND
	• |			Bitwise OR
	• ^			Bitwise XOR
	• &/			Bitwise AND NOT
	• |/			Bitwise OR NOT
	• ^/			Bitwise XOR NOT
	• AND			Logical AND
	• OR			Logical OR
	• XOR			Logical XOR
	• ATN			Return Arctangent of Vector
	• HYP			Return Hypotenuse
Unary Operators
	• ABS			Return Absolute Value
	• -			Negate
	• ~			Bitwise Inverse
	• DCD			2n-power Decoder
	• NCD			Priority Encoder of 16-bit Value
	• SIN			Return (signed) Sine Value of Angle
	• COS			Return (signed) Cosine Value of Angle
	• SQR			Return Square Root of value
	• NOT			Logical NOT