In this example, if the character c is lower case (between “a” and “z”), then it is converted to upper case by subtracting hexadecimal 0x20 from its value: Sign in to download full-size image Similarly, we can write a conditional operator-based statement to convert an upper case ...
sinceclk‘eventyields abooleanvalue, andclkis of typebit. Theandoperator is not defined for this mixture of operand types. Instead, we compare theclkvalue with ‘1’ using the “=” operator, as shown in the if statement. VHDL-87 In VHDL-87, the‘last_valueattribute for a composite sign...