===== ADDIU ========== int main(void) { int a = -2147483648 + -32768 ; } ORI $4,$0,-2147483648 ADDIU $2,$4,-32768 JR $0 //used to check for overflow 32768 is 2^15 which should be sign extended. 21... is 2^31 register_v0 = ==========XORI Bitwise exclusive or immediate============= int main(void) { int a = 5 ^ 2; } ori $4,$0,5 xori $2,$4,2 jr $0 register 0 = 7 34040005 38820002 00000008 convert to little endian //////// ====XOR Bitwise exclusive or========== int main(void) { int a = 5 ^ 2; } ori $4, $0, 5 ori $5, $0, 2 xor $2, $4, $5 jr $0 register 0 = 7 34040005 34050002 00851026 00000008 convert to little endian //////// ========SW Store word============== int main(void) { ori $4, $0, 5 ori $5, $0, 1 sw $4, 1($5) jr $0 register 0 = 5 34040005 34050001 aca40001 00000008 =========== SUBU Subtract unsigned =========== int main(void) { int a = 5-3; } ori $4,$0,5 ori $5,$0,3 subu $2,$4,$5 jr $0 register_v0 = 2 34040005 34050003 00851023 00000008 ========= SRLV Shift right logical variable ====== int main(void) { int a = 2; int b = 16>>a; } ori $4,$0,2 ori $5,$0,16 srlv $2,$5,$4 jr $0 register 0 = 3 34040002 34050010 ////// ////// =============== SRL Shift right logical ============== int main(void) { int a = -2147483647>>2; #logical shift - should feed in 0s } ori $4,$0,-2147483647 srl $2,$4,$2 jr $0 register 0 = 536870912 (2^29) 34040001 00041002 00000008 ========== SRAV Shift right arithmetic variable ======= int main(void) { int a = 2; int b = -2147483647>>2; #arithemtic shift not logical - feed in 1s (sign extension) } ori $4, $0, 2 ori $5,$0,-2147483647 srav $2,$5,$4 jr $0 register 0 = -536870912 (first 3 bits high - rest low) 34040002 34050001 //////// /////// ====== SRA Shift right arithmetic ========== int main(void) { int a = -2147483647>>2; #arithemtic shift not logical - feed in 1s (sign extension) } ori $4,$0,-2147483647 sra $2,$4,$2 jr $0 register 0 = -536870912 (first 3 bits high - rest low) 34040001 00041003 00000008 ======= SLTU Set on less than unsigned ===== int main() { int a = 10; int b = 9; max = a < b ? 1 : 0; return max; } ori $4, $0, 10 ori $5, $0, 9 sltu $2, $4, $5 jr $0 register 0 = 0 3404000a 34050009 0085102b 00000008 =========== SLTIU Set on less than immediate unsigned ================== int main() { int a = 10; max = a < 9 ? 1 : 0; return max; } ori $4, $0, 10 sltiu $2, $4, 9 jr $0 register 0 = 0 3404000a 2c820009 00000008 ======= SLTI Set on less than immediate (signed) ======== int main() { int a = 10; max = a < 9 ? 1 : 0; return max; } ori $4, $0, 10 slti $2, $4, 9 jr $0 register 0 = 0 3404000a 28820009 00000008 ======= SLLV Shift left logical variable ====== int main(void) { int a = 2; int b = 3<