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Assembly code 7. [5 pts] Sign extend an 8-bit signed integer to a 32-bit signed integer. Your assembly code must use an SXTB instruction, and
Assembly code
7. [5 pts] Sign extend an 8-bit signed integer to a 32-bit signed integer. Your assembly code must use an SXTB instruction, and thus it should be much more efficient than the following C code
. int32_t signExt8to32(int32_t n)
{ if (n & 0x00000080)
{ return 0xFFFFFF00 | n;
} else
{ return n; }
}
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