Question

Convert the following instructions from MIPS assembly language to machine language

add $50, $t0, $s3 (op code: 0, function code: 32) sub $t9, $50, $zero (op code: 0, function code: 34) addi $s2, $t0, 16 (op code: 8, function code: Does not exist for I-type instructions)

Answer 1

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add so to s3 Binary: 00000001000100111000000000100000 Hex: 0x01138020 2625 2120 16 15 11 10 SPECIAL ADD 100000 10000 - 51 5 ADD Add word MIPS Architecture Extension: MIPS I Format: ADD rd, rs, rt [R-type] 26 25 SPECIAL 000000 1110 100000 | 00000 ADD 100000 Bobo

sub t9 so zero Binary: 00000010000000001100100000100010 Hex: 0x02000822 26 25 16 15 11 10 SPECIAL 000000 2120 zero 0 0000 10000 ho t | 110 01 | 00000 ooooo | SUB 100010 SUB Subtract word MIPS Architecture Extension: MIPS I Format: SUB rd, rs, rt [R-type] 26 25 SPECIAL 000000 21 20 16 15 11 10 00000 SUB 100010

addi s2 to 0x10 Binary: 00100001000100100000000000010000 Hex: 0x21120010 31 26 25 2120 16 15 ADDI 001000 01000 1 10010 immediate 0000000000010000 16 ADDI Add Immediate Word MIPS Architecture Extension: MIPS I Format: ADDI rt, rs, immediate [I-type] 26 25 ADDI 001000 2120 16 15 immediate 16