Your task is to write an E20 assembler: a program that will convert E20 assembly language into E20 machine language. Each E20 assembly language instruction can be expressed as a 16-bit E20 machine language instruction. The rules for converting between the two forms is given in the E20 manual, particularly the chapter on the E20 instruction set. For example, consider the assembly language instruction addi $1, $2, 3. The opcode is addi, used for performing addition of an immediate. In this case, we are adding the number 3 to the value currently stored in register $2, and storing the result into register $1. The corresponding machine code instruction is 1110100010000011 in binary, or 59523 in decimal, or e883 in hex. Each component of the assembly language instruction maps onto a region of its machine language counterpart.

Anew author is in the process of negotiating a contract for a new romance novel. the publisher is offering three options. in the first option, the author is paid $5,000 upon delivery of the final manuscript and $20,000 when the novel is published. in the second option, the author is paid 12.5% of the net price of the novel for each copy of the novel sold. in the third option, the author is paid 10% of the net price for the first 4,000 copies sold, and 14% of the net price for the copies sold over 4,000. the author has some idea about the number of copies that will be sold and would like to have an estimate of the royal- ties generated under each option. write a program that prompts the author to enter the net price of each copy of the novel and the estimated number of copies that will be sold. the program then outputs he royalties under each option and the best option the author could choose. (use appropriate named constants to store the special values such as royalty rates and fixed royalties.