This summary list of intrinsic functions has only terse descriptions. Detailed behaviors, such as exception and boundary conditions, are omitted.

Numeric functions operate on types Byte, Parcel, Word, Cell, Single, or Double. The arguments have the same type as their return value. The return type is derived from the type of the expression in which they are contained.

abs(Numeric) Absolute value ln(Numeric) Natural log, base e log(Numeric) Common log, base 10 log2(Numeric) Binary log, base 2 max(Numeric, Numeric) Larger of two signed numbers min(Numeric, Numeric) Smaller of two signed numbers mod(Numeric, Numeric) Truncated signed integer or real modulus remainder(Numeric, Numeric) Remainder of a signed interger or a real root(Numeric) Square root of an unsigned integer or real

Real functions operate on Single or Double types. As with numeric functions their arguments have the same type as their return value.

acos(Real) Inverse cosine in radians acosh(Real) Inverse hyperbolic cosine asin(Real) Inverse sine in radians asinh(Real) Inverse hyperbolic sine atan(Real) Inverse tangent in radians atanh(Real) Inverse hyperbolic tangent cos(Real) Cosine of an angle in radians cosh(Real) Hyperbolic cosine exp(Real) Exponentiation (e ^ Real) integer(Real) Integer part of real number round(Real) Round a real number to an integer sin(Real) Sine of an angle in radians sinh(Real) Hyperbolic sine tan(Real) Tangent of an angle in radians tanh(Real) Hyperbolic tangent

Integer functions operate on Byte, Parcel, Word, or Cell types. Arguments to the Borrow and Carry functions also have the same type as their return value and return either a zero or one value. The argument to the Positive function is a self-typed expression that is smaller than the return type.

borrow(Integer, Integer) Borrow from an unsigned subtraction carry(Integer, Integer) Carry from an unsigned addition positive(Integer) Zero extended integer type cast

String functions perform text related operations. All 8 bit character values are allowed in Strings including zero. Consequently Strings can also be used to represent any variable length data; not just text.

Functions that select a single character return the type indicated by the function name. The Length function returs a Word and the rest return string values. Functions with an optional index use a default value. Note that string indecies are one based.

byte(String [, Word]) Select a character in a String cell(String [, Word]) Select a character in a String; 0 extend chop(String[, Word]) Remove leading characters left(String [, Word]) Left most characters in a String length(String) Number of characters in a String lower(String | Integer) Lower case a String or character parcel(String [, Word]) Select a character in a String; 0 extend right(String [, Word]) Right most characters in a String string(String[ , Word]) Select a character in a String string(String, WordA, WordB) Substring from WordA to WordB trim(String [, Word]) Remove Word characters in back of String upper(String | Integer) Uppercase a String or character word(String [, Word]) Select a character in a String; 0 extend

These functions perform type related operations. The Alignment and Span functions take a type name and return a Word (determined at compile time).

alignment(Type) Alignment of a type byte{Base | Enum} Cast to a Byte; Enumeration gives a position cell{Base | Enum} Cast to a Cell; Enumeration gives a position double{Integer | Single} Cast a signed value to a Double Enum{Integer} Cast to an enumeration by position parcel{Base | Enum} Cast to a Parcel; Enumeration gives a position parcel(@Pointer) Return a Parcel value or 0 if an address single{Integer | Double} Cast a signed value to a Single span(Type) Number of unpadded Bytes for a type span(@) Number of Bytes for a pointer (4 or 8) string{Integer} Cast a character to a String word{Base | Enum} Cast to a Word; Enumeration gives a position

The remaining functions perform I/O and exception related operations.

context(Variable) Return 1 if a context is active; else 0 file(String) Size of a file in bytes to a Cell form(Base [, Form]) Formatted string for a value or micro form(Enum [, Form]) Format the name of an enumerated value signal(Variable) Return 1 if a variable is signaled; else 0 status({Word | in | out}) Status of an I/O stream