Problem 1. Write the machine code for the following assembly instructions. You will be able to find the opcodes for MIPS instructions online. Give your answers in hexadecimal. R-Type rs rt rd shamt funct op 6 bits 5 bits bits 6 bits I-Type rs rt op 6 bits imm 16 bits J-Type op addr a) addi r10, r5, 12 b) sub r3, r4, r7 c) lw r1, 10(r2) beq r1, r4, L3 # the L3 label is at memory address 0x0050108C # the beq instruction is at memory address 0x00501028 d)