Using K-maps, extract the most simplified SOP function for 4-digits binary 2’complementer. The binary function will have 4 inputs and 4 outputs, (e. g. if the input is 0001 the output must be

1111).

a)The inputs ranges from 0000-1111, and you may use A B C D as input digits and S1 S2 S3 S4 as

output digits.

A B C D | S1 S2 S3 S4

0 0 0 0 | 0 0 0 0

0 0 0 1 | 1 1 1 1

………….

1 1 1 1 | 0 0 0 1

b) Draw the circuit. The circuit is a simplified two-level circuit, plus inverters as needed for the

input variables.

Write a program in plp assembly that counts up by one starting from zero (or one) inside a loop and writes this value to the leds every time the value is increased. the memory address of the leds is 0xf0200000. the table below shows the meaning and an example usage of the instructions covered in the video, plp instructions for project 1. instruction example usage meaning load immediate li $t0, 8 register $t0 is set to the value, 8. store word sw $t2, 0($t1) the value in register $t1 is used as the memory address. the value in register $t2 is copied into this memory address. add addiu $t4, $t3, 29 register $t4 is assigned the sum of 29 and the value in register $t3. jump j your_label_name the program jumps to the line following the label, "your_label_name: ". label your label name: defines a label called "your_label_name: " that can be jumped to