This procedure extends integers to the new integer type.

Many operations in Turbo Pascal can be calculated as integer operations. This applies to pointers, Boolean values, enumerated values and Char values. Constant integer operations are checked for possible overflow.

This procedure generates code for integer division with constant. Special code is generated if divisor is power of 2.

This procedure generates code to multiply integer with integer. Multiplication with power of 2 is translated to shift, other special cases (0, 1, 3, 5, 6) are also treated separately. Result is stored in specified Register if possible.