LAB SPECIFICATIONS: In this lab, you will write a set of MIPS32 subroutines and some test code for those subroutines. These subroutines will perform various operations on floating point numbers without using the MIPS floating point instructions. You may not use any MIPS instruction that has ".s" or ".d" in it. These include all instructions such as add.s, mul.s, abs.s, etc. You may not use the mtc1 and mfc1 instructions either. These use floating point hardware and this lab assumes we have a processor without a floating point unit. You may use these for debugging, but if you submit them in your code you will receive NO CREDIT. Note: You may want to use these in your test program! This is a convenient way to compute the results that your program should get Make sure you do not include these instructions ANYWHERE (even in comments!) in Lab6.asm, however You may use integer MULT (or MUL) instructions. In fact, we encourage this for multiplying the mantissa when multiplying two FP numbers to get the mantissa product. Remember, the result of this will be a 64- bit value that then gets rounded to a 23-bit mantissa after normalization. You will write the following four subroutines (though you are encouraged to write additional subroutines if you find it helpful)