Question

2-If we assume we place the following MIPS code starting at location 8000 in memory, what is the MIPS machine code for this code? Please explain each instruction and specify its type (R format, I format, or J format). slt $12, S0, Sto bne $12, SO, ELSE j DONE ELSE: addi $12, $12,2 DONE: obodno bendruomebook 01 ni moi bonbo n

Answer 1

Please find the answer below:

slt $t2,$0,$t0

SLT $t2 $zero $t0 Binary: 00000000000010000101000000101010 Hex: 0x0008502a 2625 SPECIAL $zero 2120 | 16 15 11 10 1 st2 0 1010 0 0000 000000 100000 01000 101010 SLT Set On Less Than MIPS Architecture Extension: MIPS I Format: SLT rd, rs, rt [R-type] 31 2625 SPECIAL 000000 21 20 16 15 11 10 65 rd SLT 101010

bne $t2,$0,ELSE

BNE $t2 $zero 0x0001 Binary: 00010101010000000000000000000001 Hex: 0x15400001 26 25 2120 16 15 5+ 2 BNE 000101 $zero 00000 offset 0000000000000001 01010 5 16 BNE Branch on Not Equal MIPS Architecture Extension: MIPS I Format: BNE rs, rt, offset [I-type] 2625 BNE 2120 16 15 rt rs offset 000101

j DONE

Address of done is :

8010 in hex

1000000000010000 in binary

address in 26 bit will be

0000000000001000000000010000

Address with jump instruction is :

00001000000000000010000000000100

it will be in hexadecimal as below

8002004

Jump Format: i target [J-type] MIPS Architecture Extension: MIPS I 2625 target 000010 26

ELSE: addi $t2,$t2,2

ADDI $t2 $t2 0x0002 Binary: 00100001010010100000000000000010 Hex: 0x214 a0002 31 26 25 21 20 16 15 ADDI 001000 10 immediate 0000000000000010 16 ADDI Add Immediate Word MIPS Architecture Extension: MIPS I Format: ADDI rt, rs, immediate [I-type] 26 25 ADDI 001000 31 2120 16 15 immediate lin 16 Purpose: