The assembler supports built-in functions for conversions and various math computations. Table 4-7 describes the built-in functions. The expr must be a constant value.
| Function | Description |
|---|---|
| $$acos(expr) | Returns the arccosine of expr as a floating-point value |
| $$asin(expr) | Returns the arcsine of expr as a floating-point value |
| $$atan(expr) | Returns the arctangent of expr as a floating-point value |
| $$atan2(expr, y) | Returns the arctangent of expr as a floating-point value in range [-π, π] |
| $$ceil(expr) | Returns the smallest integer not less than expr |
| $$cos(expr) | Returns the cosine of expr as a floating-point value |
| $$cosh(expr) | Returns the hyperbolic cosine of expr as a floating-point value |
| $$cvf(expr) | Converts expr to a floating-point value |
| $$cvi(expr) | converts expr to integer value |
| $$exp(expr) | Returns the exponential function eexpr |
| $$fabs(expr) | Returns the absolute value of expr as a floating-point value |
| $$floor(expr) | Returns the largest integer not greater than expr |
| $$fmod(expr, y) | Returns the remainder of expr1 ÷ expr2 |
| $$int(expr) | Returns 1 if expr has an integer value; else returns 0. Returns an integer. |
| $$ldexp(expr, expr2) | Multiplies expr by an integer power of 2. That is, expr1 × 2expr2 |
| $$log(expr) | Returns the natural logarithm of expr, where expr>0 |
| $$log10(expr) | Returns the base 10 logarithm of expr, where expr>0 |
| $$max(expr1, expr2) | Returns the maximum of two values |
| $$min(expr1, expr2) | Returns the minimum of two values |
| $$pow(expr1, expr2) | Returns expr1raised to the power of expr2 |
| $$round(expr) | Returns expr rounded to the nearest integer |
| $$sgn(expr) | Returns the sign of expr. |
| $$sin(expr) | Returns the sine of expr |
| $$sinh(expr) | Returns the hyperbolic sine of expr as a floating-point value |
| $$sqrt(expr) | Returns the square root of expr, expr≥0, as a floating-point value |
| $$strtod(str) | Converts a character string to a double precision floating-point value. The string contains a properly-formatted C99-style floating-point literal. |
| $$tan(expr) | Returns the tangent of expr as a floating-point value |
| $$tanh(expr) | Returns the hyperbolic tangent of expr as a floating-point value |
| $$trunc(expr) | Returns expr rounded toward 0 |