Documentation

For efficient HDL code generation, use the Fixed-Point Designer functions bitsll, bitsrl, or bitsra instead of bitshift.

• For HDL Code generation, the divisor must be a constant and a power of two.

• Non-fi inputs must be constant; that is, their values must be known at compile time so that they can be cast to fi objects.

• Complex and imaginary divisors are not supported.

• Code generation in MATLAB does not support the syntax T.divide(a,b).

• Supported for scalar fixed-point signals only.

• Supported for scalar, vector, and matrix, fi single and fi double signals.

Do not use for loops without static bounds.

Do not use the & and | operators within conditions of a for statement. Instead, use the && and || operators.

HDL Coder™ does not support nonscalar expressions in the conditions of for statements. Instead, use the all or any functions to collapse logical vectors into scalars.

Do not use the & and | operators within conditions of an if statement. Instead, use the && and || operators.

HDL Coder does not support nonscalar expressions in the conditions of if statements. Instead, use the all or any functions to collapse logical vectors into scalars.

Both inputs must be scalar, and the exponent input, k, must be an integer.

Both inputs must be scalar, and the exponent input, k, must be a constant integer.

Dimensions must be real, nonnegative integers.

Both inputs must be scalar, and the exponent input, k, must be an integer.

Both inputs must be scalar, and the exponent input, k, must be a constant integer.

Supported data types for HDL code generation are listed in Supported Data Types.

Supported data types for HDL code generation are listed in Supported Data Types.

The conditional expression in a switch or case statement must use only:

• uint8, uint16, uint32, int8, int16, or int32 data types

• Scalar data

If multiple case statements make assignments to the same variable, the numeric type and fimath specification for that variable must be the same in every case statement.

Dimensions must be real, nonnegative integers.