You are tasked to calculate a specific algebraic expansion, i. e. compute the value of f and g for the expression:

f = (0.1×A4) - (0.2×B3) + (0.3×C2) - (0.4×D)

g = (0.1×AB2) + (0.2×C2D3)

Write MIPS assembly code that accepts four positive integers A, B, C, and D as input parameters. The code shall execute in MARS to prompt the user to enter four positive integers represented in decimal, each separated by the Enter key. The program shall calculate f and g using your own self-written multiplication routine. The program will then output f and g as floating point numbers, using syscall routines for each output. Note: To receive credit, no multiplication, no division, and no shift instructions shall be used. Namely, none of {mul, mul. d, mul. s, mulo, mulou, mult, multu, mulu, div, divu, rem, sll, sllv, sra, srav, srl, srlv} or else a zero score will result. Thus, it is necessary to compose your own multiplication technique. In addition, use of Subroutines is required for credit to realize the multiplication code.

Sample output for Part A is:

Enter 4 integers for A, B, C, D respectively:

15

9

21

3

f = 5047.8

g = 2502.9

The submitted program shall provide outputs in exactly the sequence and format shown above. To receive full credit, no additional superfluous outputs shall occur.