Question

Convert the following assembly language statement into hex representation: lw $T3, 16($S0) Convert the following hex...

Convert the following assembly language statement into hex representation: lw $T3, 16($S0)

Convert the following hex representation into a MIPS assembly language statement. 016A8022 hex

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Answer #1 

1)
lw $t3, 16($s0)
=>  LW base   rt offset
=>  LW $s0    $t3    offset
=>  100011 10000  01011  0000000000010000
converting 100011  10000  01011  0000000000010000 to hexadecimal
Converting 10001110000010110000000000010000 to hexadecimal
1000 => 8
1110 => E
0000 => 0
1011 => B
0000 => 0
0000 => 0
0001 => 1
0000 => 0
So, in hexadecimal 10001110000010110000000000010000 is 0x8E0B0010
Answer: 0x8E0B0010

2)
Converting 016A8022 to binary
0 => 0000
1 => 0001
6 => 0110
A => 1010
8 => 1000
0 => 0000
2 => 0010
2 => 0010
So, in binary 016A8022 is 00000001011010101000000000100010

=>  000000 01011  01010  10000  00000  100010
=>  SPECIAL    $t3    $t2    $s0    0  SUB
=>  SPECIAL    rs rt rd 0  SUB
hence the instruction is sub $s0, $t3, $t2
Answer: sub $s0, $t3, $t2


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