Texas Instruments TMS320C54x, User Manual

Page: 75 / 469

Built-in Functions
3-29 Assembler Description
3.10 Built-in Functions
The assembler supports built-in functions for conversions and transcendental
math computations. Table 3–3 describes the built-in functions. Note that
expr
must be a constant value. See Table 5–1 for a description of the assembler’s
non-mathematical built-in functions.
Table 3–3. Assembler Built-In Math Functions
Function Description
$acos(
expr)
returns the arc cosine of
expr as a floating-point value
$asin(
expr)
returns the arc sine of
expr as a floating-point value
$atan( expr) returns the arc tangent of expr as a floating-point value
$atan2( expr) returns the arc tangent of expr as a floating-point value
(–pi to pi)
$ceil( expr) returns the smallest integer that is not less than the
expression
$cosh( expr) returns the hyperbolic cosine of expr as a floating-point
value
$cos( expr) returns the cosine of expr as a floating-point value
$cvf( expr) converts expr to floating-point value
$cvi(
expr)
converts
expr to integer value
$exp( expr) returns the result of raising e to the expr power
$fabs( expr) returns absolute value of expr as a floating-point value
$floor( expr) returns the largest integer that is not greater than the
expression
$fmod( expr1, expr2) returns the remainder after dividing expr1 and expr2
$int( expr) returns 1 if expr has an integer result
$ldexp(
expr1, expr2)
returns the result of
expr1 multiplied by 2 raised to the
expr2 power
$log10( expr) returns the base 10 logarithm of expr
$log( expr) returns the natural logarithm of expr
$max( expr1, expr2) returns the maximum of 2 expressions
$min( expr1, expr2) returns the minimum of 2 expressions