Question

Problem 2.0 What values are in registers $1 and $2 after the MIOS code fragment executes? Express your answers in hexadecimal and explicitly specify all digits of each register. LUI $1,0x4321 Ori $2,$0,OxDCBA Andi $2,$2,oxFFOF Add $1,$1,$2 #$1 :- # $2:-

Answer 1

The values are in registers $1 and $2 after the MIOS code fragment executes the transformer loads the 16 bit data 1234 to the register S1 the instruction perform the OR operation of ABCD with data) we know that if any data is 0 red by 0 the result is data itself so, ABCD is loaded to register S_2 perform AND operation with the data FFOF and data contains in $2 that is ABCD and state store the result to $2 so we get ABCS = 1010 1011 1100 1101 OFOF = 0000 1111 0000 1111 after adding these we get: 0000 1011 0000 1101 that is OBOD in decimal so now s_2 contains OBOD this intersection adds the contents of $1 and $2 and store the result to $1