ELEC50010-IAC-CW/inputs/reference/reference.txt

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== Instruction ==
C code
Assembly code
Hex code
Reference Output
================
ADDIU Add immediate unsigned (no overflow)
== ADDU Add unsigned (no overflow) ==
int main(void) {
int a = 3 + 5;
}
ORI $4,$0,3
ORI $5,$0,5
ADDU $2,$4,$5
JR $0
34040003
34050005
00851021
00000008
register_v0 = 8
==AND Bitwise and==
ORI $5,$0,0xCCCC
LUI $5,0xCCCC
ORI $4,$0,0xAAAA
LUI $4,0xAAAA
AND $2,$4,$5
JR $0
3405cccc
3c05cccc
3404aaaa
3c04aaaa
00851024
00000008
register_v0 = 0x88888888
==ANDI Bitwise and immediate==
ORI $4,$0,0xAAAA
LUI $4,0xAAAA
ANDI $2,$4,0xCCCC
JR $0
3404aaaa
3c04aaaa
3082cccc
00000008
register_v0 = 0x00008888
==BEQ Branch on equal==
ORI $4,$0,5
ORI $5,$0,5
BEQ $4,$5,3
NOP
JR $0
NOP
ORI $2,$0,1
JR $0
34040005
34050005
10850003
00000000
00000008
00000000
34020001
00000008
register_v0 = 1
==BGEZ Branch on greater than or equal to zero==
ORI $4,$0,3
BGEZ $4,3
NOP
JR $0
NOP
ORI $2,$0,1
JR $0
34040003
04810003
00000000
00000008
00000000
34020001
00000008
register_v0 = 1
==BGEZAL Branch on non-negative (>=0) and link==
ORI $4,$0,3
BGEZAL $4,4
NOP
ADDIU $2,$2,1
JR $0
NOP
ORI $2,$0,1
JR $31
34040003
04910004
00000000
24420001
00000008
00000000
34020001
03E00008
register_v0 = 2
==BGTZ Branch on greater than zero==
ORI $4,$0,3
BGTZ $4,3
NOP
JR $0
NOP
ORI $2,$0,1
JR $0
34040003
1C800003
00000000
00000008
00000000
34020001
00000008
register_v0 = 1
==BLEZ Branch on less than or equal to zero==
LUI $4,0xFFFF
BLEZ $4,3
NOP
JR $0
NOP
ORI $2,$0,1
JR $0
3C05FFFF
18800003
00000000
00000008
00000000
34020001
00000008
register_v0 = 1
==BLTZ Branch on less than zero==
LUI $4,0xFFFF
BLTZ $4,3
NOP
JR $0
NOP
ORI $2,$0,1
JR $0
3C05FFFF
04800003
00000000
00000008
00000000
34020001
00000008
register_v0 = 1
==BLTZAL Branch on less than zero and link==
LUI $4,0xFFFF
BLTZAL $4,4
NOP
ADDIU $2,$2,1
JR $0
NOP
ORI $2,$0,1
JR $31
3C05FFFF
04900004
00000000
24420001
00000008
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00000000
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34020001
03E00008
register_v0 = 2
==BNE Branch on not equal==
ORI $4,$0,3
ORI $5,$0,5
BNE $4,$5,3
NOP
JR $0
NOP
ORI $2,$0,1
JR $0
34040003
34040005
14850003
00000000
00000008
00000000
34020001
00000008
register_v0 = 1
==DIV Divide== //May need other testcases for -ve/+ve, -ve/-ve
ORI $4,$0,3
ORI $5,$0,9
DIV $5,$4
MFHI $4
MFLO $5
ADDU $2,$4,$5
JR $0
34040003
34050009
00A4001A
00002010
00002812
00851021
00000008
register_v0 = 3
==DIVU Divide unsigned== //May need other testcases for -ve/+ve, -ve/-ve
LUI $4,0x8000
ORI $5,$0,2
DIVU $4,$5
MFHI $4
MFLO $5
ADDU $2,$4,$5
JR $0
34048000
34050002
0085001B
00002010
00002812
00851021
00000008
register_v0 = 0x40000000
==J Jump==
J 12
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NOP
JR $0
NOP
ORI $2,$0,1
JR $0
0800000C
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00000000
00000008
00000000
3402000A
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00000008
register_v0 = 10
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==JALR Jump and link register==
ORI $5,$0,0x001C
LUI $5,0xBFC0
JALR $4,$5
NOP
ADDIU $2,$2,1
JR $0
NOP
ORI $2,$0,1
JR $4
3405001C
3C05BCF0
00A02009
00000000
24420001
00000008
00000000
34020001
00800008
register_v0 = 2
==JAL Jump and link==
JAL 5
NOP
ADDIU $2,$2,1
JR $0
NOP
ORI $2,$0,1
JR $31
0C000005
00000000
24420001
00000008
00000000
34020001
03E00008
register_v0 = 2
==JR Jump register==
LUI $5,0xBFC0
ORI $5,$5,0x0014
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JR $5
NOP
JR $0
NOP
ORI $2,$0,0x10
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JR $0
3C05BFC0
34A50014
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00A00008
00000000
00000008
34020010
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00000008
register_v0 = 16
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==LB Load byte==
ORI $4,$0,0x1003
LB $2,3($4)
JR $0
-Instruction Hex
34041000
80820006
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00000008
-Memory Hex
00000000
008A0000
00000000
00000000
register_v0 = 0xFFFFFF8A
==LBU Load byte unsigned==
ORI $4,$0,0x1003
LBU $2,3($4)
JR $0
-Instruction Hex
34041003
90820003
00000008
-Memory Hex
00000000
008A0000
00000000
00000000
register_v0 = 0x0000008A
==LH Load half-word==
ORI $4,$0,0x1003
LH $2,4($4)
JR $0
-Instruction Hex
34041003
84820004
00000008
-Memory Hex
00000000
00008123
00000000
00000000
register_v0 = 0xFFFF8123
==LHU Load half-word unsigned==
ORI $4,$0,0x1003
LHU $2,4($4)
JR $0
-Instruction Hex
34041003
94820004
00000008
-Memory Hex
00000000
00008123
00000000
00000000
register_v0 = 0x00008123
==LUI Load upper immediate==
LUI $2,0x1234
ORI $2,$2,0x5678
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JR $0
3C021234
34425678
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00000008
register_v0 = 0x12345678
==LW Load word==
ORI $4,$0,0x1002
LW $2, 2($4)
JR $0
-Instruction Hex
34041002
8C820002
00000008
-Memory Hex
00000000
12345678
00000000
00000000
register_v0 = 0x12345678
==LWL Load word left==
ORI $4,$0,0x1001
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ORI $2,$0,0x5678
LWL $2,3($4)
JR $0
-Instruction Hex
34041001
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34025678
88820003
00000008
-Memory Hex
00000000
AAAA1234
00000000
00000000
register_v0 = 0x12345678
==LWR Load word right==
ORI $4,$0,0x1002
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LUI $2,0x1234
LWR $2,2($4)
JR $0
-Instruction Hex
34041002
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3C021234
98820002
00000008
-Memory Hex
00000000
5678AAAA
00000000
00000000
register_v0 = 0x12345678
// DIVU Divide unsigned
// DIV Divide
//MFHI Move from Hi
//MFLO Move from lo
//MTHI Move to HI
//MTLO Move to LO
//MULT Multiply**
//MULTU Multiply unsigned**
//OR Bitwise or
//ORI Bitwise or immediate
//SB Store byte
//SH Store half-word**
//SLL Shift left logical
//SLLV Shift left logical variable **
//SLT Set on less than (signed)
//SLTI Set on less than immediate (signed)
//SLTIU Set on less than immediate unsigned
//SLTU Set on less than unsigned
//SRA Shift right arithmetic
//SRAV Shift right arithmetic**
//SRL Shift right logical
//SRLV Shift right logical variable**
//SUBU Subtract unsigned
//SW Store word
ori $4, $0, 0xFFFF 3404FFFF
ori $5, $0, 0x1008 34051008
sw $4, 4($5) ACA40004
ori $5, $0, 0x100C 3405100C
lw $2, 0($5) 8CA20000
jr $0 00000008
ori $4, $0, 0x1234
ori $5, $0, 0x1008
sw $4, 0($5)
lw $2, 0($5)
jr $0
3404FFFF
34051008
ACA40000
8CA20000
00000008
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//XOR Bitwise exclusive or
//XORI Bitwise exclusive or immediate