Give three examples of pseudoinstructions and three examples of directives that an assembler might be likely to provide. Why might an assembler perform its own final pass of instruction scheduling?...

Give three examples of pseudoinstructions and three examples of directives that an assembler might be likely to provide. Why might an assembler perform its own final pass of instruction scheduling? Explain the distinction between absolute and relocatable words in an object file. Why is the notion of “relocatability” more complicated than it used to be?