Write a procedure to perform hexadecimal-to-binary conversion. Use only shift instructions for multiplication. Assume that signed 32-bit numbers are used. Test your procedure by writing a main program...

Write a procedure to perform hexadecimal-to-binary conversion. Use only shift instructions for multiplication. Assume that signed 32-bit numbers are used. Test your

procedure by writing a main program that reads a hexadecimal number as a character

string and converts it to an equivalent binary number by calling the procedure. Finally,

the main program should display the decimal value of the input by using PutLInt.