diff --git a/reference.txt b/reference.txt
deleted file mode 100644
index ebd0fdd..0000000
--- a/reference.txt
+++ /dev/null
@@ -1,848 +0,0 @@
-== Instruction ==
-Assembly code
-Hex code
-Reference Output
-================
-
-==ADDIU Add immediate unsigned (no overflow)==
-
-ORI $4,$0,0xA
-JR $0
-ADDIU $2,$4,20
-
-3404000a
-00000008
-24820014
-
-register_v0 = 30
-
-== ADDU Add unsigned (no overflow) ==
-
-ORI $4,$0,3
-ORI $5,$0,5
-JR $0
-ADDU $2,$4,$5
-
-34040003
-34050005
-00000008
-00851021
-
-register_v0 = 8
-
-==AND Bitwise and==
-
-LUI $5,0xCCCC
-ORI $5,$5,0xCCCC
-LUI $4,0xAAAA 
-ORI $4,$4,0xAAAA
-JR $0
-AND  $2,$4,$5
-
-3c05cccc 
-34A5cccc
-3c04aaaa
-3484aaaa
-00000008
-00851024
-
-register_v0 = 0x88888888 / 2290649224
-
-==ANDI Bitwise and immediate==
-
-LUI $4,0xAAAA 
-ORI $4,$0,0xAAAA
-JR $0
-ANDI $2,$4,0xCCCC
-
-3c04aaaa
-3404aaaa
-00000008
-3082cccc
-
-register_v0 = 0x00008888 / 34952
-
-==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
-
-3C04FFFF
-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
-00000000
-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
-
-3C048000
-34050002
-0085001B
-00002010
-00002812
-00851021
-00000008
-
-register_v0 = 0x40000000 / 1073741824
-
-==J	Jump==
-
-J 4
-NOP
-JR $0
-NOP
-ORI $2,$0,1
-JR $0
-
-08000004
-00000000
-00000008
-00000000
-34020001
-00000008
-
-register_v0 = 1
-
-==JALR	Jump and link register==
-
-LUI $5,0xBFC0
-ORI $5,$5,0x001C
-JALR $4,$5
-NOP
-ADDIU $2,$2,1
-JR $0
-NOP
-ORI $2,$0,1
-JR $4
-
-3C05BCF0
-34A5001C
-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
-JR $5  
-NOP
-JR $0
-NOP
-ORI $2,$0,0xA
-JR $0
-
-3C05BFC0
-34A50014
-00A00008
-00000000
-00000008
-3402000A
-00000008
-
-register_v0 = 10
-
-==LB	Load byte==
-
-ORI $4,$0,0x1001
-JR $0
-LB  $2,5($4)
-
--Instruction Hex
-
-34041001
-00000008
-80820005
-
--Memory Hex
-
-00000000
-008A0000
-00000000
-00000000
-
-register_v0 = 0xFFFFFF8A / 4294967178
-
-==LBU	Load byte unsigned==
-
-ORI $4,$0,0x1002
-JR $0
-LBU  $2,4($4)
-
--Instruction Hex
-
-34041002
-00000008
-90820004
-
--Memory Hex
-
-00000000
-008A0000
-00000000
-00000000
-
-register_v0 = 0x0000008A / 138
-
-==LH	Load half-word==
-
-ORI $4,$0,0x1000
-JR $0
-LH  $2,4($4)
-
--Instruction Hex
-
-34041003
-00000008
-84820004
-
--Memory Hex
-
-00000000
-00008123
-00000000
-00000000
-
-register_v0 = 0xFFFF8123 / 4294934819
-
-==LHU	Load half-word unsigned==
-
-ORI $4,$0,0x1000
-JR $0
-LHU $2,4($4)
-
--Instruction Hex
-
-34041000
-00000008
-94820004
-
--Memory Hex
-
-00000000
-00008123
-00000000
-00000000
-
-register_v0 = 0x00008123 / 33059
-
-==LUI	Load upper immediate==
-
-LUI $2,0x1234
-ORI $2,$2,0x5678
-JR $0
-
-3C021234
-34425678
-00000008
-
-register_v0 = 0x12345678 / 305419896
-
-==LW	Load word==
-
-ORI $4,$0,0x1002
-JR $0
-LW  $2, 2($4)
-
--Instruction Hex
-
-34041002
-00000008
-8C820002
-
--Memory Hex
-
-00000000
-12345678
-00000000
-00000000
-
-register_v0 = 0x12345678 / 305419896
-
-==LWL	Load word left==
-
-ORI $4,$0,0x1001
-ORI $2,$0,0x5678
-JR $0
-LWL  $2,3($4)
-
--Instruction Hex
-
-34041001
-34025678
-00000008
-88820003
-
--Memory Hex
-
-00000000
-AAAA1234
-00000000
-00000000
-
-register_v0 = 0x12345678 / 305419896
-
-==LWR	Load word right==
-
-LUI $2,0x1234
-ORI $4,$0,0x1002
-JR $0
-LWR $2,3($4)
-
--Instruction Hex
-
-3C021234
-34041002
-00000008
-98820003
-
--Memory Hex
-
-00000000
-5678AAAA
-00000000
-00000000
-
-register_v0 = 0x12345678 / 305419896
-
-==MTHI	Move to HI==
-
-ori $4, $0, 5
-mthi $4
-mfhi $2
-jr $0
-
-34040005
-00800011
-00001010
-00000008
-
-register_v0 = 5
-
-==MTLO	Move to LO==
-
-ori $4, $0, 5
-mtlo $4
-mflo $2
-jr $0
-
-34040005
-00800013
-00001012
-00000008
-
-register_v0 = 5
-
-==MULT	Multiply==
-
-ori $4, $0, 4
-ori $5, $0, 3
-mult $4, $5
-mflo $2
-jr $0
-
-34040004
-34050003
-00850018
-00001012
-00000008
-
-register_v0 = 12
-
-==MULTU	Multiply unsigned==
-
-ori $4, $0, 4
-ori $5, $0, 3
-multu $4, $5
-mflo $2
-jr $0
-
-34040004
-34050003
-00850019
-00001012
-00000008
-
-register_v0 = 12
-
-==OR	Bitwise or==
-
-ori $4, $0, 5
-ori $5, $0, 3
-jr $0
-or $2, $4, $5
-
-34040005
-34050003
-00000008
-00851025
-
-register_v0 = 7
-
-==ORI	Bitwise or immediate==
-
-ori $4, $0, 0xFFFF
-ori $5, $0, 0x1234
-jr $0
-or $2, $4, $5
-
-3404FFFF
-34051234
-00851025
-00000008
-
-register_v0 = 65535
-
-==SB	Store byte==
-
-lui $4, 0x1234
-ori $4, $0, 0x5678
-lui $5, 0xBFC0
-ori $5, $0, 0x001C
-sb $4, 0($5)
-lb $2, 0($5)
-jr $0
-
-3C041234
-34045678
-3C05BFC0
-3405001C
-A0A40000
-80A20000
-00000008
-
-register_v0 = 0x00000078
-
-==SH	Store half-word==
-
-lui $4, 0x1234
-ori $4, $0, 0x5678
-lui $5, 0xBFC0
-ori $5, $0, 0x001C
-sh $4, 0($5)
-lh $2, 0($5)
-jr $0
-
-3C041234
-34045678
-3C05BFC0
-3405001C
-A4A40000
-84A40000
-00000008
-
-register_v0 = 0x00005678
-
-==SLL	Shift left logical==
-
-ori $4,$0,3
-jr $0
-sll $2,$4,2
-
-
-34040003
-00000008
-00041080
-
-register_v0 = 12
-
-==SLLV	Shift left logical variable==
-
-ori $4,$0,2
-ori $5,$0,3
-jr $0
-sllv $2,$5,$4
-
-34040002
-34050003
-00000008
-00851004
-
-register_v0 = 12
-
-==SLT	Set on less than (signed)==
-
-ORI $4 $zero 0xFFFF
-ORI $5 $zero 0x000B
-jr $0
-SLT $2 $4 $5
-
-3404FFFF
-3405000B
-00000008
-0085102A
-
-register_v0 = 0
-
-==SLTI	Set on less than immediate (signed)==
-
-ori $4, $0, 10
-jr $0
-slti $2, $4, 9
-
-3404000a
-00000008
-28820009
-
-register_v0 = 0
-
-==SLTIU	Set on less than immediate unsigned==
-
-ori $4, $0, 10
-jr $0
-sltiu $2, $4, 9
-
-3404000a
-00000008
-2c820009
-
-register_v0 = 0
-
-==SLTU	Set on less than unsigned==
-
-ori $4, $0, 10
-ori $5, $0, 9
-jr $0
-sltu $2, $4, $5
-
-3404000a
-34050009
-00000008
-0085102b
-
-register_v0 = 0
-
-==SRA	Shift right arithmetic==
-
-lui $5 $0,0xF000
-jr $0  
-srav $2,$5,2
-  
-3C05F000
-00000008
-00051083
-
-register_v0 = 0xFC000000 / 4227858432
-
-==SRAV	Shift right arithmetic variable==
-
-ori $4,$0,2
-lui $5, 0xF000
-jr $0  
-srav $2,$5,$4
-
-34040002
-3C05F000
-00000008
-00851007
-
-register_v0 = 0xFC000000 / 4227858432
-
-==SRL	Shift right logical==
-
-ori $4,$0,16
-jr $0
-srl $2,$4,2
-
-34040010
-00000008
-00041082
-
-register_v0 = 4
-
-==SRLV	Shift right logical variable==
-
-ori $4,$0,2
-ori $5,$0,16
-jr $0
-srlv $2,$5,$4
-
-34040002
-34050010
-00000008
-00851006
-
-register_v0 = 4
-
-==SUBU	Subtract unsigned==
-
-ori $4,$0,5
-ori $5,$0,3
-jr $0
-subu $2,$4,$5
-
-34040005
-34050003
-00000008
-00851023
-
-register_v0 = 2
-
-==SW	Store word==
-
-ori $4, $0, 0xFFFF     
-ori $5, $0, 0x1008    
-sw $4, 4($5)      
-lw $2, 4($5)                    
-jr $0               
-
-3404FFFF
-34051008
-ACA40004
-8CA20004
-00000008
-
-register_v0 = 0x0000FFFF / 65535
-
--Negative Offset
-
-ori $4, $0, 0xFFFF     
-ori $5, $0, 0x1008    
-sw $4, -4($5)      
-lw $2, -4($5)                    
-jr $0               
-
-3404FFFF
-34051008
-ACA4FFFC
-8CA2FFFC
-00000008
-
-register_v0 = 0x0000FFFF / 65535
-
-==XOR	Bitwise exclusive or==
-
-ori $4, $0, 5
-ori $5, $0, 2
-jr $0
-xor $2, $4, $5
-
-34040005
-34050002
-00000008
-00851026
-
-register_v0 = 7
-
-==XORI	Bitwise exclusive or immediate==
-
-ori $4,$0,5
-jr $0
-xori $2,$4,0x000F
-
-34040005
-00000008
-3882000F
-
-register_v0 = 10
diff --git a/Instructions.xlsx b/reference/Instructions.xlsx
similarity index 100%
rename from Instructions.xlsx
rename to reference/Instructions.xlsx
diff --git a/mips-isa.pdf b/reference/mips-isa.pdf
similarity index 100%
rename from mips-isa.pdf
rename to reference/mips-isa.pdf
diff --git a/reference/reference.txt b/reference/reference.txt
index 8583183..ebd0fdd 100644
--- a/reference/reference.txt
+++ b/reference/reference.txt
@@ -1,564 +1,848 @@
-== 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
-00000000
-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 4
-NOP
-JR $0
-NOP
-ORI $2,$0,1
-JR $0
-
-08000004
-00000000
-00000008
-00000000
-34020001
-00000008
-
-register_v0 = 1
-
-==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==
-
-ORI $5,$0,0x0014
-LUI $5,0xBFC0  
-JR $5  
-NOP
-JR $0
-NOP
-ORI $2,$0,1
-JR $0
-
-34050014
-3C05BCF0
-00A00008
-00000000
-00000008
-34020001
-00000008
-
-register_v0 = 1
-
-==LB	Load byte==
-
-ORI $4,$0,0x1003
-LB  $2,3($4)
-JR $0
-
--Instruction Hex
-
-34041003
-80820003
-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==
-
-ORI $2,$0,0x5678
-LUI $2,0x1234
-JR $0
-
-34045678
-3C021234
-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,$0,0x1003
-ORI $2,$0,0x5678
-LWL  $2,3($4)
-JR $0
-
--Instruction Hex
-
-34041003
-34025678
-88820003
-00000008
-
--Memory Hex
-
-00000000
-AAAA1234
-00000000
-00000000
-
-register_v0 = 0x12345678
-
-==LWR	Load word right==
-
-ORI $4,$0,0x1003
-LUI $2,0x1234
-LWR $2,2($4)
-JR $0
-
--Instruction Hex
-
-34041003
-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
-
-//XOR	Bitwise exclusive or
-
-//XORI	Bitwise exclusive or immediate
+== Instruction ==
+Assembly code
+Hex code
+Reference Output
+================
+
+==ADDIU Add immediate unsigned (no overflow)==
+
+ORI $4,$0,0xA
+JR $0
+ADDIU $2,$4,20
+
+3404000a
+00000008
+24820014
+
+register_v0 = 30
+
+== ADDU Add unsigned (no overflow) ==
+
+ORI $4,$0,3
+ORI $5,$0,5
+JR $0
+ADDU $2,$4,$5
+
+34040003
+34050005
+00000008
+00851021
+
+register_v0 = 8
+
+==AND Bitwise and==
+
+LUI $5,0xCCCC
+ORI $5,$5,0xCCCC
+LUI $4,0xAAAA 
+ORI $4,$4,0xAAAA
+JR $0
+AND  $2,$4,$5
+
+3c05cccc 
+34A5cccc
+3c04aaaa
+3484aaaa
+00000008
+00851024
+
+register_v0 = 0x88888888 / 2290649224
+
+==ANDI Bitwise and immediate==
+
+LUI $4,0xAAAA 
+ORI $4,$0,0xAAAA
+JR $0
+ANDI $2,$4,0xCCCC
+
+3c04aaaa
+3404aaaa
+00000008
+3082cccc
+
+register_v0 = 0x00008888 / 34952
+
+==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
+
+3C04FFFF
+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
+00000000
+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
+
+3C048000
+34050002
+0085001B
+00002010
+00002812
+00851021
+00000008
+
+register_v0 = 0x40000000 / 1073741824
+
+==J	Jump==
+
+J 4
+NOP
+JR $0
+NOP
+ORI $2,$0,1
+JR $0
+
+08000004
+00000000
+00000008
+00000000
+34020001
+00000008
+
+register_v0 = 1
+
+==JALR	Jump and link register==
+
+LUI $5,0xBFC0
+ORI $5,$5,0x001C
+JALR $4,$5
+NOP
+ADDIU $2,$2,1
+JR $0
+NOP
+ORI $2,$0,1
+JR $4
+
+3C05BCF0
+34A5001C
+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
+JR $5  
+NOP
+JR $0
+NOP
+ORI $2,$0,0xA
+JR $0
+
+3C05BFC0
+34A50014
+00A00008
+00000000
+00000008
+3402000A
+00000008
+
+register_v0 = 10
+
+==LB	Load byte==
+
+ORI $4,$0,0x1001
+JR $0
+LB  $2,5($4)
+
+-Instruction Hex
+
+34041001
+00000008
+80820005
+
+-Memory Hex
+
+00000000
+008A0000
+00000000
+00000000
+
+register_v0 = 0xFFFFFF8A / 4294967178
+
+==LBU	Load byte unsigned==
+
+ORI $4,$0,0x1002
+JR $0
+LBU  $2,4($4)
+
+-Instruction Hex
+
+34041002
+00000008
+90820004
+
+-Memory Hex
+
+00000000
+008A0000
+00000000
+00000000
+
+register_v0 = 0x0000008A / 138
+
+==LH	Load half-word==
+
+ORI $4,$0,0x1000
+JR $0
+LH  $2,4($4)
+
+-Instruction Hex
+
+34041003
+00000008
+84820004
+
+-Memory Hex
+
+00000000
+00008123
+00000000
+00000000
+
+register_v0 = 0xFFFF8123 / 4294934819
+
+==LHU	Load half-word unsigned==
+
+ORI $4,$0,0x1000
+JR $0
+LHU $2,4($4)
+
+-Instruction Hex
+
+34041000
+00000008
+94820004
+
+-Memory Hex
+
+00000000
+00008123
+00000000
+00000000
+
+register_v0 = 0x00008123 / 33059
+
+==LUI	Load upper immediate==
+
+LUI $2,0x1234
+ORI $2,$2,0x5678
+JR $0
+
+3C021234
+34425678
+00000008
+
+register_v0 = 0x12345678 / 305419896
+
+==LW	Load word==
+
+ORI $4,$0,0x1002
+JR $0
+LW  $2, 2($4)
+
+-Instruction Hex
+
+34041002
+00000008
+8C820002
+
+-Memory Hex
+
+00000000
+12345678
+00000000
+00000000
+
+register_v0 = 0x12345678 / 305419896
+
+==LWL	Load word left==
+
+ORI $4,$0,0x1001
+ORI $2,$0,0x5678
+JR $0
+LWL  $2,3($4)
+
+-Instruction Hex
+
+34041001
+34025678
+00000008
+88820003
+
+-Memory Hex
+
+00000000
+AAAA1234
+00000000
+00000000
+
+register_v0 = 0x12345678 / 305419896
+
+==LWR	Load word right==
+
+LUI $2,0x1234
+ORI $4,$0,0x1002
+JR $0
+LWR $2,3($4)
+
+-Instruction Hex
+
+3C021234
+34041002
+00000008
+98820003
+
+-Memory Hex
+
+00000000
+5678AAAA
+00000000
+00000000
+
+register_v0 = 0x12345678 / 305419896
+
+==MTHI	Move to HI==
+
+ori $4, $0, 5
+mthi $4
+mfhi $2
+jr $0
+
+34040005
+00800011
+00001010
+00000008
+
+register_v0 = 5
+
+==MTLO	Move to LO==
+
+ori $4, $0, 5
+mtlo $4
+mflo $2
+jr $0
+
+34040005
+00800013
+00001012
+00000008
+
+register_v0 = 5
+
+==MULT	Multiply==
+
+ori $4, $0, 4
+ori $5, $0, 3
+mult $4, $5
+mflo $2
+jr $0
+
+34040004
+34050003
+00850018
+00001012
+00000008
+
+register_v0 = 12
+
+==MULTU	Multiply unsigned==
+
+ori $4, $0, 4
+ori $5, $0, 3
+multu $4, $5
+mflo $2
+jr $0
+
+34040004
+34050003
+00850019
+00001012
+00000008
+
+register_v0 = 12
+
+==OR	Bitwise or==
+
+ori $4, $0, 5
+ori $5, $0, 3
+jr $0
+or $2, $4, $5
+
+34040005
+34050003
+00000008
+00851025
+
+register_v0 = 7
+
+==ORI	Bitwise or immediate==
+
+ori $4, $0, 0xFFFF
+ori $5, $0, 0x1234
+jr $0
+or $2, $4, $5
+
+3404FFFF
+34051234
+00851025
+00000008
+
+register_v0 = 65535
+
+==SB	Store byte==
+
+lui $4, 0x1234
+ori $4, $0, 0x5678
+lui $5, 0xBFC0
+ori $5, $0, 0x001C
+sb $4, 0($5)
+lb $2, 0($5)
+jr $0
+
+3C041234
+34045678
+3C05BFC0
+3405001C
+A0A40000
+80A20000
+00000008
+
+register_v0 = 0x00000078
+
+==SH	Store half-word==
+
+lui $4, 0x1234
+ori $4, $0, 0x5678
+lui $5, 0xBFC0
+ori $5, $0, 0x001C
+sh $4, 0($5)
+lh $2, 0($5)
+jr $0
+
+3C041234
+34045678
+3C05BFC0
+3405001C
+A4A40000
+84A40000
+00000008
+
+register_v0 = 0x00005678
+
+==SLL	Shift left logical==
+
+ori $4,$0,3
+jr $0
+sll $2,$4,2
+
+
+34040003
+00000008
+00041080
+
+register_v0 = 12
+
+==SLLV	Shift left logical variable==
+
+ori $4,$0,2
+ori $5,$0,3
+jr $0
+sllv $2,$5,$4
+
+34040002
+34050003
+00000008
+00851004
+
+register_v0 = 12
+
+==SLT	Set on less than (signed)==
+
+ORI $4 $zero 0xFFFF
+ORI $5 $zero 0x000B
+jr $0
+SLT $2 $4 $5
+
+3404FFFF
+3405000B
+00000008
+0085102A
+
+register_v0 = 0
+
+==SLTI	Set on less than immediate (signed)==
+
+ori $4, $0, 10
+jr $0
+slti $2, $4, 9
+
+3404000a
+00000008
+28820009
+
+register_v0 = 0
+
+==SLTIU	Set on less than immediate unsigned==
+
+ori $4, $0, 10
+jr $0
+sltiu $2, $4, 9
+
+3404000a
+00000008
+2c820009
+
+register_v0 = 0
+
+==SLTU	Set on less than unsigned==
+
+ori $4, $0, 10
+ori $5, $0, 9
+jr $0
+sltu $2, $4, $5
+
+3404000a
+34050009
+00000008
+0085102b
+
+register_v0 = 0
+
+==SRA	Shift right arithmetic==
+
+lui $5 $0,0xF000
+jr $0  
+srav $2,$5,2
+  
+3C05F000
+00000008
+00051083
+
+register_v0 = 0xFC000000 / 4227858432
+
+==SRAV	Shift right arithmetic variable==
+
+ori $4,$0,2
+lui $5, 0xF000
+jr $0  
+srav $2,$5,$4
+
+34040002
+3C05F000
+00000008
+00851007
+
+register_v0 = 0xFC000000 / 4227858432
+
+==SRL	Shift right logical==
+
+ori $4,$0,16
+jr $0
+srl $2,$4,2
+
+34040010
+00000008
+00041082
+
+register_v0 = 4
+
+==SRLV	Shift right logical variable==
+
+ori $4,$0,2
+ori $5,$0,16
+jr $0
+srlv $2,$5,$4
+
+34040002
+34050010
+00000008
+00851006
+
+register_v0 = 4
+
+==SUBU	Subtract unsigned==
+
+ori $4,$0,5
+ori $5,$0,3
+jr $0
+subu $2,$4,$5
+
+34040005
+34050003
+00000008
+00851023
+
+register_v0 = 2
+
+==SW	Store word==
+
+ori $4, $0, 0xFFFF     
+ori $5, $0, 0x1008    
+sw $4, 4($5)      
+lw $2, 4($5)                    
+jr $0               
+
+3404FFFF
+34051008
+ACA40004
+8CA20004
+00000008
+
+register_v0 = 0x0000FFFF / 65535
+
+-Negative Offset
+
+ori $4, $0, 0xFFFF     
+ori $5, $0, 0x1008    
+sw $4, -4($5)      
+lw $2, -4($5)                    
+jr $0               
+
+3404FFFF
+34051008
+ACA4FFFC
+8CA2FFFC
+00000008
+
+register_v0 = 0x0000FFFF / 65535
+
+==XOR	Bitwise exclusive or==
+
+ori $4, $0, 5
+ori $5, $0, 2
+jr $0
+xor $2, $4, $5
+
+34040005
+34050002
+00000008
+00851026
+
+register_v0 = 7
+
+==XORI	Bitwise exclusive or immediate==
+
+ori $4,$0,5
+jr $0
+xori $2,$4,0x000F
+
+34040005
+00000008
+3882000F
+
+register_v0 = 10
diff --git a/structure.png b/reference/structure.png
similarity index 100%
rename from structure.png
rename to reference/structure.png