ELEC50010-IAC-CW/reference/reference.txt
Aadi Desai 1be11d6c19 Add second store halfword testcase
Checks that only half the word is written using load word after store halfword
2020-12-17 10:00:18 -08:00

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Plaintext

== 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
-Test not overflowing property
lui $4,$0,0x1000
lui $5,$0,0xF000
JR $0
ADDU $2,$4,$5
3C041000
3C05F000
00000008
00851021
register_v0 = 0
==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
-Testing whether it would link if branch fails
lui $4,0xFFFF
BGEZAL $4,4
JR $31
ADDIU $2,$2,1
JR $0
3C04FFFF
04910004
03E00008
24420001
00000008
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
-Branch Delay slot test
JR $0
ORI $2,$0,5
00000008
34020005
register_v0 = 5
-This broke testbench once due to log.txt weirdness
LUI $5,0xBFC0
ORI $5,$5,0x0008
JR $5
JR $0
3C05BFC0
34A50008
00A00008
00000008
register_v0 = 0
==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
ori $5, $0, 0x101C
sb $4, 0($5)
lb $2, 0($5)
jr $0
3C041234
34045678
3405101C
A0A40000
80A20000
00000008
register_v0 = 0x00000078
==SH Store half-word==
lui $4, 0x1234
ori $4, $0, 0x5678
ori $5, $0, 0x101C
sh $4, 0($5)
lh $2, 0($5)
jr $0
3C041234
34045678
3405101C
A4A40000
84A20000
00000008
-Load Entire Word Version
lui $4, 0x1234
ori $4, $0, 0x5678
ori $5, $0, 0x101C
sh $4, 0($5)
lw $2, 0($5)
jr $0
3C041234
34045678
3405101C
A4A40000
8CA20000
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