| Line 1... |
Line 1... |
################################################################################
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################################################################################
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# opcode.s -- MIPS opcode tester for xxx project
|
# opcode.s -- MIPS opcode tester for Ion project
|
#-------------------------------------------------------------------------------
|
#-------------------------------------------------------------------------------
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# ORIGINAL AUTHOR: Steve Rhoads (rhoadss@yahoo.com) -- 1/10/01
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# ORIGINAL AUTHOR: Steve Rhoads (rhoadss@yahoo.com) -- 1/10/01
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#
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#
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# This file is an edited version of 'opcodes.asm', which is part of the Plasma
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# This file is an edited version of 'opcodes.asm', which is part of the Plasma
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# project (http://opencores.org/project,plasma).
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# project (http://opencores.org/project,plasma).
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# COPYRIGHT: Software placed into the public domain by the original author.
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# COPYRIGHT: Software placed into the public domain by the original author.
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# Software 'as is' without warranty. Author liable for nothing.
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# Software 'as is' without warranty. Author liable for nothing.
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#
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#-------------------------------------------------------------------------------
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#-------------------------------------------------------------------------------
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# This assembly file tests all of the opcodes supported by the xxx core.
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#
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# This assembly file tests all of the opcodes supported by the Ion core.
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# This test assumes that address 0x20000000 is the UART write register.
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# This test assumes that address 0x20000000 is the UART write register.
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# Successful tests will print out "A" or "AB" or "ABC" or ....
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# Successful tests will print out "A" or "AB" or "ABC" or ....
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# Missing letters or letters out of order indicate a failure.
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# Missing letters or letters out of order indicate a failure.
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#-------------------------------------------------------------------------------
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#-------------------------------------------------------------------------------
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# The core supports all the MIPS-I instructions, except for MULT* and DIV*.
|
# NOTE: This test bench relies on the simulation logs to catch errors. That is,
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# C code needs to be compiled with the "-mno-mul" flag and linked with 'math.c'.
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# unlike the original Plasma code, this one does not test the test success
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# NOTE: the regular gcc compiler (v xxx) does NOT support this option!
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# conditions. instead, it performs the operations to be tested and relies on you
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#-------------------------------------------------------------------------------
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# to compare the logs from the logic simulation and the software simulation.
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# Summary of differences to original code:
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# Test that work this way have been commented with this tag: "@log"
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#
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#
|
# 1.- MUL* or DIV* are not implemented so that part has been commented out.
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#-------------------------------------------------------------------------------
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# 2.- Plasma does not need a 'delay slot' after a L* before the result is used,
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# NOTE: NOPs have been inserted after load instructions.
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# unlike the conventional MIPS-I architecture. In this code NOPs have been
|
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# inserted where necessary so that it works whether or not the core has load
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# delay slots (as opposed to load interlock). This means that this code
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# can't be used to validate load interlock implementation.
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#
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#
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################################################################################
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################################################################################
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#-- Set flags below to >0 to enable/disable test assembly ------------------
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|
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# Set to >0 to test unaligned loads and/or stores
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.set TEST_UNALIGNED_LOADS, 0 # unaligned loads
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.set TEST_UNALIGNED_LOADS, 0
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.set TEST_UNALIGNED_STORES, 0 # unaligned stores
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.set TEST_UNALIGNED_STORES, 0
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.set TEST_BREAK, 1 # BREAK instruction
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# WARNING: the assembler expands div instructions, see 'as' manual
|
.text
|
.set TEST_DIV, 0 # DIV* instructions
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.align 2
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.set TEST_MUL, 0 # MUL* instructions
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.globl entry
|
|
.ent entry
|
#---------------------------------------------------------------------------
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entry:
|
|
.set noreorder
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.text
|
|
.align 2
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la $gp, _gp #initialize stack pointer
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.globl entry
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la $4, __bss_start #$4 = .sbss_start
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.ent entry
|
la $5, _end #$5 = .bss_end
|
entry:
|
nop #no stack needed
|
.set noreorder
|
nop
|
|
|
la $gp, _gp #initialize stack pointer
|
|
la $4, __bss_start #$4 = .sbss_start
|
|
la $5, _end #$5 = .bss_end
|
|
nop #no stack needed
|
|
nop
|
|
|
b StartTest
|
b StartTest
|
nop #nops required to place ISR at 0x3c
|
nop #nops required to place ISR at 0x3c
|
nop
|
nop
|
|
|
OS_AsmPatchValue:
|
OS_AsmPatchValue:
|
#Code to place at address 0x3c
|
#Code to place at address 0x3c
|
lui $26, 0x1000
|
lui $26, 0x1000
|
ori $26, $26, 0x3c
|
ori $26, $26, 0x3c
|
jr $26
|
jr $26
|
nop
|
nop
|
|
|
.org 0x3c
|
.org 0x3c
|
InterruptVector: # Address=0x3c
|
InterruptVector: # Address=0x3c
|
mfc0 $26,$14 # C0_EPC=14 (Exception PC)
|
mfc0 $26,$14 # C0_EPC=14 (Exception PC)
|
jr $26
|
jr $26
|
add $4,$4,5
|
add $4,$4,5
|
|
|
StartTest:
|
StartTest:
|
mtc0 $0,$12 # disable interrupts
|
mtc0 $0,$12 # disable interrupts
|
lui $20,0x2000 # serial port write address
|
lui $20,0x2000 # serial port write address
|
ori $21,$0,'\n' # <CR> character
|
ori $21,$0,'\n' # <CR> character
|
ori $22,$0,'X' # 'X' letter
|
ori $22,$0,'X' # 'X' letter
|
ori $23,$0,'\r'
|
ori $23,$0,'\r'
|
ori $24,$0,0x0f80 # temp memory
|
ori $24,$0,0x0f80 # temp memory
|
|
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#Patch interrupt vector to 0x1000003c
|
#Patch interrupt vector to 0x1000003c
|
la $5, OS_AsmPatchValue
|
la $5, OS_AsmPatchValue
|
sub $6,$5,0x1000
|
sub $6,$5,0x1000
|
blez $6,NoPatch
|
blez $6,NoPatch
|
nop
|
nop
|
#lw $6, 0($5)
|
#lw $6, 0($5)
|
#sw $6, 0x3c($0)
|
#sw $6, 0x3c($0)
|
#lw $6, 4($5)
|
#lw $6, 4($5)
|
#sw $6, 0x40($0)
|
#sw $6, 0x40($0)
|
#lw $6, 8($5)
|
#lw $6, 8($5)
|
#sw $6, 0x44($0)
|
#sw $6, 0x44($0)
|
#lw $6, 12($5)
|
#lw $6, 12($5)
|
#sw $6, 0x48($0)
|
#sw $6, 0x48($0)
|
NoPatch:
|
NoPatch:
|
|
|
######################################
|
######################################
|
#Arithmetic Instructions
|
#Arithmetic Instructions
|
######################################
|
######################################
|
ArthmeticTest:
|
ArthmeticTest:
|
ori $2,$0,'A'
|
ori $2,$0,'A'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'r'
|
ori $2,$0,'r'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'i'
|
ori $2,$0,'i'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'t'
|
ori $2,$0,'t'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'h'
|
ori $2,$0,'h'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#a: ADD
|
#a: ADD
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $3,$0,5
|
ori $3,$0,5
|
ori $4,$0,60
|
ori $4,$0,60
|
add $2,$3,$4
|
add $2,$3,$4
|
sb $2,0($20) #A
|
sb $2,0($20) #A
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#b: ADDI
|
#b: ADDI
|
ori $2,$0,'b'
|
ori $2,$0,'b'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $4,$0,60
|
ori $4,$0,60
|
addi $2,$4,5
|
addi $2,$4,5
|
sb $2,0($20) #A
|
sb $2,0($20) #A
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#c: ADDIU
|
#c: ADDIU
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $4,$0,50
|
ori $4,$0,50
|
addiu $5,$4,15
|
addiu $5,$4,15
|
sb $5,0($20) #A
|
sb $5,0($20) #A
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#d: ADDU
|
#d: ADDU
|
ori $2,$0,'d'
|
ori $2,$0,'d'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $3,$0,5
|
ori $3,$0,5
|
ori $4,$0,60
|
ori $4,$0,60
|
add $2,$3,$4
|
add $2,$3,$4
|
sb $2,0($20) #A
|
sb $2,0($20) #A
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
# DIV not implemented so skip div test
|
# DIV tests, skip conditionally
|
# FIXME skip conditionaly
|
.ifgt TEST_DIV
|
j skip_div_test
|
|
nop
|
#e: DIV
|
|
ori $2,$0,'e'
|
#e: DIV
|
sb $2,0($20)
|
ori $2,$0,'e'
|
ori $2,$0,65*117+41
|
sb $2,0($20)
|
ori $3,$0,117
|
ori $2,$0,65*117+41
|
div $2,$3
|
ori $3,$0,117
|
nop
|
div $2,$3
|
mflo $4
|
nop
|
sb $4,0($20) #A
|
mflo $4
|
mfhi $4
|
sb $4,0($20) #A
|
addi $4,$4,66-41
|
mfhi $4
|
sb $4,0($20) #B
|
addi $4,$4,66-41
|
li $2,-67*19
|
sb $4,0($20) #B
|
ori $3,$0,19
|
li $2,-67*19
|
div $2,$3
|
ori $3,$0,19
|
nop
|
div $2,$3
|
mflo $4
|
nop
|
sub $4,$0,$4
|
mflo $4
|
sb $4,0($20) #C
|
sub $4,$0,$4
|
ori $2,$0,68*23
|
sb $4,0($20) #C
|
li $3,-23
|
ori $2,$0,68*23
|
div $2,$3
|
li $3,-23
|
nop
|
div $2,$3
|
mflo $4
|
nop
|
sub $4,$0,$4
|
mflo $4
|
sb $4,0($20) #D
|
sub $4,$0,$4
|
li $2,-69*13
|
sb $4,0($20) #D
|
li $3,-13
|
li $2,-69*13
|
div $2,$3
|
li $3,-13
|
mflo $4
|
div $2,$3
|
sb $4,0($20) #E
|
mflo $4
|
sb $23,0($20)
|
sb $4,0($20) #E
|
sb $21,0($20)
|
sb $23,0($20)
|
|
sb $21,0($20)
|
#f: DIVU
|
|
ori $2,$0,'f'
|
#f: DIVU
|
sb $2,0($20)
|
ori $2,$0,'f'
|
ori $2,$0,65*13
|
sb $2,0($20)
|
ori $3,$0,13
|
ori $2,$0,65*13
|
divu $2,$3
|
ori $3,$0,13
|
nop
|
divu $2,$3
|
mflo $4
|
nop
|
sb $4,0($20) #A
|
mflo $4
|
sb $23,0($20)
|
sb $4,0($20) #A
|
sb $21,0($20)
|
sb $23,0($20)
|
.endif
|
sb $21,0($20)
|
|
|
# MUL tests, skip conditionally
|
skip_div_test:
|
.ifgt TEST_MUL
|
|
|
# MUL not implemented so skip mul test
|
#g: MULT
|
# FIXME skip conditionaly
|
ori $2,$0,'g'
|
j skip_mult_test
|
sb $2,0($20)
|
nop
|
ori $2,$0,5
|
|
ori $3,$0,13
|
#g: MULT
|
mult $2,$3
|
ori $2,$0,'g'
|
nop
|
sb $2,0($20)
|
mflo $4
|
ori $2,$0,5
|
sb $4,0($20) #A
|
ori $3,$0,13
|
li $2,-5
|
mult $2,$3
|
ori $3,$0,13
|
nop
|
mult $2,$3
|
mflo $4
|
mfhi $5
|
sb $4,0($20) #A
|
mflo $4
|
li $2,-5
|
sub $4,$0,$4
|
ori $3,$0,13
|
addu $4,$4,$5
|
mult $2,$3
|
addi $4,$4,2
|
mfhi $5
|
sb $4,0($20) #B
|
mflo $4
|
ori $2,$0,5
|
sub $4,$0,$4
|
li $3,-13
|
addu $4,$4,$5
|
mult $2,$3
|
addi $4,$4,2
|
mfhi $5
|
sb $4,0($20) #B
|
mflo $4
|
ori $2,$0,5
|
sub $4,$0,$4
|
li $3,-13
|
addu $4,$4,$5
|
mult $2,$3
|
addi $4,$4,3
|
mfhi $5
|
sb $4,0($20) #C
|
mflo $4
|
li $2,-5
|
sub $4,$0,$4
|
li $3,-13
|
addu $4,$4,$5
|
mult $2,$3
|
addi $4,$4,3
|
mfhi $5
|
sb $4,0($20) #C
|
mflo $4
|
li $2,-5
|
addu $4,$4,$5
|
li $3,-13
|
addi $4,$4,3
|
mult $2,$3
|
sb $4,0($20) #D
|
mfhi $5
|
lui $4,0xfe98
|
mflo $4
|
ori $4,$4,0x62e5
|
addu $4,$4,$5
|
lui $5,0x6
|
addi $4,$4,3
|
ori $5,0x8db8
|
sb $4,0($20) #D
|
mult $4,$5
|
lui $4,0xfe98
|
mfhi $6
|
ori $4,$4,0x62e5
|
addiu $7,$6,2356+1+'E' #E
|
lui $5,0x6
|
sb $7,0($20)
|
ori $5,0x8db8
|
sb $23,0($20)
|
mult $4,$5
|
sb $21,0($20)
|
mfhi $6
|
|
addiu $7,$6,2356+1+'E' #E
|
#h: MULTU
|
sb $7,0($20)
|
ori $2,$0,'h'
|
sb $23,0($20)
|
sb $2,0($20)
|
sb $21,0($20)
|
ori $2,$0,5
|
|
ori $3,$0,13
|
#h: MULTU
|
multu $2,$3
|
ori $2,$0,'h'
|
nop
|
sb $2,0($20)
|
mflo $4
|
ori $2,$0,5
|
sb $4,0($20) #A
|
ori $3,$0,13
|
sb $23,0($20)
|
multu $2,$3
|
sb $21,0($20)
|
nop
|
.endif
|
mflo $4
|
|
sb $4,0($20) #A
|
#i: SLT
|
sb $23,0($20)
|
ori $2,$0,'i'
|
sb $21,0($20)
|
sb $2,0($20)
|
|
ori $2,$0,10
|
skip_mult_test:
|
ori $3,$0,12
|
|
slt $4,$2,$3
|
#i: SLT
|
addi $5,$4,64
|
ori $2,$0,'i'
|
sb $5,0($20) #A
|
sb $2,0($20)
|
slt $4,$3,$2
|
ori $2,$0,10
|
addi $5,$4,66
|
ori $3,$0,12
|
sb $5,0($20) #B
|
slt $4,$2,$3
|
li $2,0xfffffff0
|
addi $5,$4,64
|
slt $4,$2,$3
|
sb $5,0($20) #A
|
addi $5,$4,66
|
slt $4,$3,$2
|
sb $5,0($20) #C
|
addi $5,$4,66
|
slt $4,$3,$2
|
sb $5,0($20) #B
|
addi $5,$4,68
|
li $2,0xfffffff0
|
sb $5,0($20) #D
|
slt $4,$2,$3
|
li $3,0xffffffff
|
addi $5,$4,66
|
slt $4,$2,$3
|
sb $5,0($20) #C
|
addi $5,$4,68
|
slt $4,$3,$2
|
sb $5,0($20) #E
|
addi $5,$4,68
|
slt $4,$3,$2
|
sb $5,0($20) #D
|
addi $5,$4,70
|
li $3,0xffffffff
|
sb $5,0($20) #F
|
slt $4,$2,$3
|
sb $23,0($20)
|
addi $5,$4,68
|
sb $21,0($20)
|
sb $5,0($20) #E
|
|
slt $4,$3,$2
|
#j: SLTI
|
addi $5,$4,70
|
ori $2,$0,'j'
|
sb $5,0($20) #F
|
sb $2,0($20)
|
sb $23,0($20)
|
ori $2,$0,10
|
sb $21,0($20)
|
slti $4,$2,12
|
|
addi $5,$4,64
|
#j: SLTI
|
sb $5,0($20) #A
|
ori $2,$0,'j'
|
slti $4,$2,8
|
sb $2,0($20)
|
addi $5,$4,66
|
ori $2,$0,10
|
sb $5,0($20) #B
|
slti $4,$2,12
|
sb $23,0($20)
|
addi $5,$4,64
|
sb $21,0($20)
|
sb $5,0($20) #A
|
|
slti $4,$2,8
|
#k: SLTIU
|
addi $5,$4,66
|
ori $2,$0,'k'
|
sb $5,0($20) #B
|
sb $2,0($20)
|
sb $23,0($20)
|
ori $2,$0,10
|
sb $21,0($20)
|
sltiu $4,$2,12
|
|
addi $5,$4,64
|
#k: SLTIU
|
sb $5,0($20) #A
|
ori $2,$0,'k'
|
sltiu $4,$2,8
|
sb $2,0($20)
|
addi $5,$4,66
|
ori $2,$0,10
|
sb $5,0($20) #B
|
sltiu $4,$2,12
|
sb $23,0($20)
|
addi $5,$4,64
|
sb $21,0($20)
|
sb $5,0($20) #A
|
|
sltiu $4,$2,8
|
#l: SLTU
|
addi $5,$4,66
|
ori $2,$0,'l'
|
sb $5,0($20) #B
|
sb $2,0($20)
|
sb $23,0($20)
|
ori $2,$0,10
|
sb $21,0($20)
|
ori $3,$0,12
|
|
slt $4,$2,$3
|
#l: SLTU
|
addi $5,$4,64
|
ori $2,$0,'l'
|
sb $5,0($20) #A
|
sb $2,0($20)
|
slt $4,$3,$2
|
ori $2,$0,10
|
addi $5,$4,66
|
ori $3,$0,12
|
sb $5,0($20) #B
|
slt $4,$2,$3
|
sb $23,0($20)
|
addi $5,$4,64
|
sb $21,0($20)
|
sb $5,0($20) #A
|
|
slt $4,$3,$2
|
#m: SUB
|
addi $5,$4,66
|
ori $2,$0,'m'
|
sb $5,0($20) #B
|
sb $2,0($20)
|
sb $23,0($20)
|
ori $3,$0,70
|
sb $21,0($20)
|
ori $4,$0,5
|
|
sub $2,$3,$4
|
#m: SUB
|
sb $2,0($20) #A
|
ori $2,$0,'m'
|
sb $23,0($20)
|
sb $2,0($20)
|
sb $21,0($20)
|
ori $3,$0,70
|
|
ori $4,$0,5
|
#n: SUBU
|
sub $2,$3,$4
|
ori $2,$0,'n'
|
sb $2,0($20) #A
|
sb $2,0($20)
|
sb $23,0($20)
|
ori $3,$0,70
|
sb $21,0($20)
|
ori $4,$0,5
|
|
sub $2,$3,$4
|
#n: SUBU
|
sb $2,0($20) #A
|
ori $2,$0,'n'
|
sb $23,0($20)
|
sb $2,0($20)
|
sb $21,0($20)
|
ori $3,$0,70
|
|
ori $4,$0,5
|
|
sub $2,$3,$4
|
|
sb $2,0($20) #A
|
|
sb $23,0($20)
|
|
sb $21,0($20)
|
|
|
|
######################################
|
######################################
|
#Branch and Jump Instructions
|
#Branch and Jump Instructions
|
######################################
|
######################################
|
BranchTest:
|
BranchTest:
|
ori $2,$0,'B'
|
ori $2,$0,'B'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'r'
|
ori $2,$0,'r'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'n'
|
ori $2,$0,'n'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'h'
|
ori $2,$0,'h'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#a: B
|
#a: B
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
b $B1
|
b $B1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$B1:
|
$B1:
|
sb $11,0($20)
|
sb $11,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#b: BAL
|
#b: BAL
|
ori $2,$0,'b'
|
ori $2,$0,'b'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $14,$0,'E'
|
ori $14,$0,'E'
|
ori $15,$0,'X'
|
ori $15,$0,'X'
|
bal $BAL1
|
bal $BAL1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $13,0($20)
|
sb $13,0($20)
|
b $BAL2
|
b $BAL2
|
sb $14,0($20)
|
sb $14,0($20)
|
sb $15,0($20)
|
sb $15,0($20)
|
$BAL1:
|
$BAL1:
|
sb $11,0($20)
|
sb $11,0($20)
|
jr $31
|
jr $31
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BAL2:
|
$BAL2:
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#c: BEQ
|
#c: BEQ
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $2,$0,100
|
ori $2,$0,100
|
ori $3,$0,123
|
ori $3,$0,123
|
ori $4,$0,123
|
ori $4,$0,123
|
beq $2,$3,$BEQ1
|
beq $2,$3,$BEQ1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $11,0($20)
|
sb $11,0($20)
|
beq $3,$4,$BEQ1
|
beq $3,$4,$BEQ1
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BEQ1:
|
$BEQ1:
|
sb $13,0($20)
|
sb $13,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#d: BGEZ
|
#d: BGEZ
|
ori $2,$0,'d'
|
ori $2,$0,'d'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
or $15,$0,'X'
|
or $15,$0,'X'
|
ori $2,$0,100
|
ori $2,$0,100
|
li $3,0xffff1234
|
li $3,0xffff1234
|
ori $4,$0,123
|
ori $4,$0,123
|
bgez $3,$BGEZ1
|
bgez $3,$BGEZ1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $11,0($20)
|
sb $11,0($20)
|
bgez $2,$BGEZ1
|
bgez $2,$BGEZ1
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BGEZ1:
|
$BGEZ1:
|
bgez $0,$BGEZ2
|
bgez $0,$BGEZ2
|
nop
|
nop
|
sb $15,0($20)
|
sb $15,0($20)
|
$BGEZ2:
|
$BGEZ2:
|
sb $13,0($20)
|
sb $13,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#e: BGEZAL
|
#e: BGEZAL
|
ori $2,$0,'e'
|
ori $2,$0,'e'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $14,$0,'E'
|
ori $14,$0,'E'
|
ori $15,$0,'X'
|
ori $15,$0,'X'
|
li $3,0xffff1234
|
li $3,0xffff1234
|
bgezal $3,$BGEZAL1
|
bgezal $3,$BGEZAL1
|
nop
|
nop
|
sb $10,0($20)
|
sb $10,0($20)
|
bgezal $0,$BGEZAL1
|
bgezal $0,$BGEZAL1
|
nop
|
nop
|
sb $13,0($20)
|
sb $13,0($20)
|
b $BGEZAL2
|
b $BGEZAL2
|
sb $14,0($20)
|
sb $14,0($20)
|
sb $15,0($20)
|
sb $15,0($20)
|
$BGEZAL1:
|
$BGEZAL1:
|
sb $11,0($20)
|
sb $11,0($20)
|
jr $31
|
jr $31
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BGEZAL2:
|
$BGEZAL2:
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#f: BGTZ
|
#f: BGTZ
|
ori $2,$0,'f'
|
ori $2,$0,'f'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $2,$0,100
|
ori $2,$0,100
|
li $3,0xffff1234
|
li $3,0xffff1234
|
bgtz $3,$BGTZ1
|
bgtz $3,$BGTZ1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $11,0($20)
|
sb $11,0($20)
|
bgtz $2,$BGTZ1
|
bgtz $2,$BGTZ1
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BGTZ1:
|
$BGTZ1:
|
sb $13,0($20)
|
sb $13,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#g: BLEZ
|
#g: BLEZ
|
ori $2,$0,'g'
|
ori $2,$0,'g'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $2,$0,100
|
ori $2,$0,100
|
li $3,0xffff1234
|
li $3,0xffff1234
|
blez $2,$BLEZ1
|
blez $2,$BLEZ1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $11,0($20)
|
sb $11,0($20)
|
blez $3,$BLEZ1
|
blez $3,$BLEZ1
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BLEZ1:
|
$BLEZ1:
|
blez $0,$BLEZ2
|
blez $0,$BLEZ2
|
nop
|
nop
|
sb $22,0($20)
|
sb $22,0($20)
|
$BLEZ2:
|
$BLEZ2:
|
sb $13,0($20)
|
sb $13,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#h: BLTZ
|
#h: BLTZ
|
ori $2,$0,'h'
|
ori $2,$0,'h'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $14,$0,'E'
|
ori $14,$0,'E'
|
ori $2,$0,100
|
ori $2,$0,100
|
li $3,0xffff1234
|
li $3,0xffff1234
|
ori $4,$0,0
|
ori $4,$0,0
|
bltz $2,$BLTZ1
|
bltz $2,$BLTZ1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $11,0($20)
|
sb $11,0($20)
|
bltz $3,$BLTZ1
|
bltz $3,$BLTZ1
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BLTZ1:
|
$BLTZ1:
|
bltz $4,$BLTZ2
|
bltz $4,$BLTZ2
|
nop
|
nop
|
sb $13,0($20)
|
sb $13,0($20)
|
$BLTZ2:
|
$BLTZ2:
|
sb $14,0($20)
|
sb $14,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#i: BLTZAL
|
#i: BLTZAL
|
ori $2,$0,'i'
|
ori $2,$0,'i'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $14,$0,'E'
|
ori $14,$0,'E'
|
ori $15,$0,'X'
|
ori $15,$0,'X'
|
li $3,0xffff1234
|
li $3,0xffff1234
|
bltzal $0,$BLTZAL1
|
bltzal $0,$BLTZAL1
|
nop
|
nop
|
sb $10,0($20)
|
sb $10,0($20)
|
bltzal $3,$BLTZAL1
|
bltzal $3,$BLTZAL1
|
nop
|
nop
|
sb $13,0($20)
|
sb $13,0($20)
|
b $BLTZAL2
|
b $BLTZAL2
|
sb $14,0($20)
|
sb $14,0($20)
|
sb $15,0($20)
|
sb $15,0($20)
|
$BLTZAL1:
|
$BLTZAL1:
|
sb $11,0($20)
|
sb $11,0($20)
|
jr $31
|
jr $31
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BLTZAL2:
|
$BLTZAL2:
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#j: BNE
|
#j: BNE
|
ori $2,$0,'j'
|
ori $2,$0,'j'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $2,$0,100
|
ori $2,$0,100
|
ori $3,$0,123
|
ori $3,$0,123
|
ori $4,$0,123
|
ori $4,$0,123
|
bne $3,$4,$BNE1
|
bne $3,$4,$BNE1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $11,0($20)
|
sb $11,0($20)
|
bne $2,$3,$BNE1
|
bne $2,$3,$BNE1
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$BNE1:
|
$BNE1:
|
sb $13,0($20)
|
sb $13,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#k: J
|
#k: J
|
ori $2,$0,'k'
|
ori $2,$0,'k'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $15,$0,'X'
|
ori $15,$0,'X'
|
j $J1
|
j $J1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $15,0($20)
|
sb $15,0($20)
|
$J1:
|
$J1:
|
sb $11,0($20)
|
sb $11,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#l: JAL
|
#l: JAL
|
ori $2,$0,'l'
|
ori $2,$0,'l'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $14,$0,'E'
|
ori $14,$0,'E'
|
ori $15,$0,'X'
|
ori $15,$0,'X'
|
jal $JAL1
|
jal $JAL1
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $13,0($20)
|
sb $13,0($20)
|
b $JAL2
|
b $JAL2
|
sb $14,0($20)
|
sb $14,0($20)
|
sb $15,0($20)
|
sb $15,0($20)
|
$JAL1:
|
$JAL1:
|
sb $11,0($20)
|
sb $11,0($20)
|
jr $31
|
jr $31
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$JAL2:
|
$JAL2:
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#m: JALR
|
#m: JALR
|
ori $2,$0,'m'
|
ori $2,$0,'m'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $12,$0,'C'
|
ori $12,$0,'C'
|
ori $13,$0,'D'
|
ori $13,$0,'D'
|
ori $14,$0,'E'
|
ori $14,$0,'E'
|
ori $15,$0,'X'
|
ori $15,$0,'X'
|
la $3,$JALR1
|
la $3,$JALR1
|
jalr $3
|
jalr $3
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $13,0($20)
|
sb $13,0($20)
|
b $JALR2
|
b $JALR2
|
sb $14,0($20)
|
sb $14,0($20)
|
sb $15,0($20)
|
sb $15,0($20)
|
$JALR1:
|
$JALR1:
|
sb $11,0($20)
|
sb $11,0($20)
|
jr $31
|
jr $31
|
sb $12,0($20)
|
sb $12,0($20)
|
sb $22,0($20)
|
sb $22,0($20)
|
$JALR2:
|
$JALR2:
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#n: JR
|
#n: JR
|
ori $2,$0,'n'
|
ori $2,$0,'n'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $10,$0,'A'
|
ori $10,$0,'A'
|
ori $11,$0,'B'
|
ori $11,$0,'B'
|
ori $15,$0,'X'
|
ori $15,$0,'X'
|
la $3,$JR1
|
la $3,$JR1
|
jr $3
|
jr $3
|
sb $10,0($20)
|
sb $10,0($20)
|
sb $15,0($20)
|
sb $15,0($20)
|
$JR1:
|
$JR1:
|
sb $11,0($20)
|
sb $11,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#o: NOP
|
#o: NOP
|
ori $2,$0,'o'
|
ori $2,$0,'o'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,65
|
ori $2,$0,65
|
nop
|
nop
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
# b LoadTest
|
# b LoadTest
|
|
|
BreakTest:
|
|
#p: BREAK
|
BreakTest:
|
ori $2,$0,'p'
|
.ifgt TEST_BREAK
|
sb $2,0($20)
|
#p: BREAK
|
ori $2,$0,'z'
|
ori $2,$0,'p' # check if it jumps to break address and comes back
|
ori $4,$0,59
|
sb $2,0($20)
|
break 0
|
ori $2,$0,'z'
|
addi $4,$4,1
|
ori $4,$0,59
|
sb $4,0($20)
|
break 0
|
sb $23,0($20)
|
addi $4,$4,1
|
sb $21,0($20)
|
sb $4,0($20)
|
|
|
#q: SYSCALL
|
break 0 # check if load instruction is aborted (@log)
|
ori $2,$0,'q'
|
lb $2,16($2)
|
sb $2,0($20)
|
|
ori $4,$0,61
|
break 0 # check if jump instruction is aborted (@log)
|
syscall 0
|
j break_jump_test
|
addi $4,$4,-1
|
add $4,$4,5
|
sb $4,0($20)
|
|
sb $23,0($20)
|
break_jump_test:
|
sb $21,0($20)
|
add $4,$4,1 # make sure the jump shows in the log (@log)
|
|
|
|
sb $23,0($20)
|
|
sb $21,0($20)
|
|
.endif
|
|
|
|
#q: SYSCALL
|
|
ori $2,$0,'q'
|
|
sb $2,0($20)
|
|
ori $4,$0,61
|
|
syscall 0
|
|
addi $4,$4,-1
|
|
sb $4,0($20)
|
|
sb $23,0($20)
|
|
sb $21,0($20)
|
|
|
|
|
######################################
|
######################################
|
#Load, Store, and Memory Control Instructions
|
#Load, Store, and Memory Control Instructions
|
######################################
|
######################################
|
LoadTest:
|
LoadTest:
|
ori $2,$0,'L'
|
ori $2,$0,'L'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'o'
|
ori $2,$0,'o'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'d'
|
ori $2,$0,'d'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#a: LB
|
#a: LB
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,0x414243fc
|
li $3,0x414243fc
|
sw $3,16($2) # 16($2) = 0x414243fc
|
sw $3,16($2) # 16($2) = 0x414243fc
|
lb $4,16($2) # $4 = 0x41
|
lb $4,16($2) # $4 = 0x41
|
sb $4,0($20) # UART = 0x41
|
sb $4,0($20) # UART = 0x41
|
lb $4,17($2) # $4 = 0x42
|
lb $4,17($2) # $4 = 0x42
|
nop
|
nop
|
sb $4,0($20) # UART = 0x42
|
sb $4,0($20) # UART = 0x42
|
lb $4,18($2) # $4 = 0x43
|
lb $4,18($2) # $4 = 0x43
|
nop
|
nop
|
sb $4,0($20) # UART = 0x43
|
sb $4,0($20) # UART = 0x43
|
lb $2,19($2) # $2 = 0xffff.fffc
|
lb $2,19($2) # $2 = 0xffff.fffc
|
nop
|
nop
|
sra $3,$2,8 # $3 = 0xffff.ffff
|
sra $3,$2,8 # $3 = 0xffff.ffff
|
addi $3,$3,0x45 # $3 = 0x44
|
addi $3,$3,0x45 # $3 = 0x44
|
sb $3,0($20) # UART = 0x44
|
sb $3,0($20) # UART = 0x44
|
addi $2,$2,0x49 # $4 = 0x45, overflow
|
addi $2,$2,0x49 # $4 = 0x45, overflow
|
sb $2,0($20) # UART = 0x45
|
sb $2,0($20) # UART = 0x45
|
sb $23,0($20) # UART = CR
|
sb $23,0($20) # UART = CR
|
sb $21,0($20) # UART = LF
|
sb $21,0($20) # UART = LF
|
|
|
#b: LBU
|
#b: LBU
|
ori $2,$0,'b'
|
ori $2,$0,'b'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,0x41424344
|
li $3,0x41424344
|
sw $3,16($2)
|
sw $3,16($2)
|
lb $4,16($2)
|
lb $4,16($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $4,17($2)
|
lb $4,17($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $4,18($2)
|
lb $4,18($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $2,19($2)
|
lb $2,19($2)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#c: LH
|
#c: LH
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,0x00410042
|
li $3,0x00410042
|
sw $3,16($2)
|
sw $3,16($2)
|
lh $4,16($2)
|
lh $4,16($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lh $2,18($2)
|
lh $2,18($2)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#d: LHU
|
#d: LHU
|
ori $2,$0,'d'
|
ori $2,$0,'d'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,0x00410042
|
li $3,0x00410042
|
sw $3,16($2)
|
sw $3,16($2)
|
lh $4,16($2)
|
lh $4,16($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lh $2,18($2)
|
lh $2,18($2)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#e: LW
|
#e: LW
|
ori $2,$0,'e'
|
ori $2,$0,'e'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,'A'
|
li $3,'A'
|
sw $3,16($2)
|
sw $3,16($2)
|
ori $3,$0,0
|
ori $3,$0,0
|
lw $2,16($2)
|
lw $2,16($2)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
.ifgt TEST_UNALIGNED_LOADS
|
.ifgt TEST_UNALIGNED_LOADS
|
#f: LWL & LWR
|
#f: LWL & LWR
|
ori $2,$0,'f'
|
ori $2,$0,'f'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,'A'
|
li $3,'A'
|
sw $3,16($2)
|
sw $3,16($2)
|
ori $3,$0,0
|
ori $3,$0,0
|
lwl $2,16($2)
|
lwl $2,16($2)
|
lwr $2,16($2)
|
lwr $2,16($2)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
.endif
|
.endif
|
|
|
#g: SB
|
#g: SB
|
ori $2,$0,'g'
|
ori $2,$0,'g'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'A'
|
ori $2,$0,'A'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#h: SH
|
#h: SH
|
ori $2,$0,'h'
|
ori $2,$0,'h'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $4,$0,$24
|
or $4,$0,$24
|
ori $2,$0,0x4142
|
ori $2,$0,0x4142
|
sh $2,16($4)
|
sh $2,16($4)
|
lb $3,16($4)
|
lb $3,16($4)
|
sb $3,0($20)
|
sb $3,0($20)
|
lb $2,17($4)
|
lb $2,17($4)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#i: SW
|
#i: SW
|
ori $2,$0,'i'
|
ori $2,$0,'i'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,0x41424344
|
li $3,0x41424344
|
sw $3,16($2)
|
sw $3,16($2)
|
lb $4,16($2)
|
lb $4,16($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $4,17($2)
|
lb $4,17($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $4,18($2)
|
lb $4,18($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $2,19($2)
|
lb $2,19($2)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
.ifgt TEST_UNALIGNED_STORES
|
.ifgt TEST_UNALIGNED_STORES
|
#j: SWL & SWR
|
#j: SWL & SWR
|
ori $2,$0,'j'
|
ori $2,$0,'j'
|
sb $2,0($20)
|
sb $2,0($20)
|
or $2,$0,$24
|
or $2,$0,$24
|
li $3,0x41424344
|
li $3,0x41424344
|
swl $3,16($2)
|
swl $3,16($2)
|
swr $3,16($2)
|
swr $3,16($2)
|
lb $4,16($2)
|
lb $4,16($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $4,17($2)
|
lb $4,17($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $4,18($2)
|
lb $4,18($2)
|
sb $4,0($20)
|
sb $4,0($20)
|
lb $2,19($2)
|
lb $2,19($2)
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
.endif
|
.endif
|
|
|
######################################
|
######################################
|
#Logical Instructions
|
#Logical Instructions
|
######################################
|
######################################
|
LogicalTest:
|
LogicalTest:
|
ori $2,$0,'L'
|
ori $2,$0,'L'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'o'
|
ori $2,$0,'o'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'g'
|
ori $2,$0,'g'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'i'
|
ori $2,$0,'i'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#a: AND
|
#a: AND
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,0x0741
|
ori $2,$0,0x0741
|
ori $3,$0,0x60f3
|
ori $3,$0,0x60f3
|
and $4,$2,$3
|
and $4,$2,$3
|
sb $4,0($20)
|
sb $4,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#b: ANDI
|
#b: ANDI
|
ori $2,$0,'b'
|
ori $2,$0,'b'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,0x0741
|
ori $2,$0,0x0741
|
andi $4,$2,0x60f3
|
andi $4,$2,0x60f3
|
sb $4,0($20)
|
sb $4,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#c: LUI
|
#c: LUI
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
lui $2,0x41
|
lui $2,0x41
|
srl $3,$2,16
|
srl $3,$2,16
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#d: NOR
|
#d: NOR
|
ori $2,$0,'d'
|
ori $2,$0,'d'
|
sb $2,0($20)
|
sb $2,0($20)
|
li $2,0xf0fff08e
|
li $2,0xf0fff08e
|
li $3,0x0f0f0f30
|
li $3,0x0f0f0f30
|
nor $4,$2,$3
|
nor $4,$2,$3
|
sb $4,0($20)
|
sb $4,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#e: OR
|
#e: OR
|
ori $2,$0,'e'
|
ori $2,$0,'e'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,0x40
|
ori $2,$0,0x40
|
ori $3,$0,0x01
|
ori $3,$0,0x01
|
or $4,$2,$3
|
or $4,$2,$3
|
sb $4,0($20)
|
sb $4,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#f: ORI
|
#f: ORI
|
ori $2,$0,'f'
|
ori $2,$0,'f'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,0x40
|
ori $2,$0,0x40
|
ori $4,$2,0x01
|
ori $4,$2,0x01
|
sb $4,0($20)
|
sb $4,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#g: XOR
|
#g: XOR
|
ori $2,$0,'g'
|
ori $2,$0,'g'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,0xf043
|
ori $2,$0,0xf043
|
ori $3,$0,0xf002
|
ori $3,$0,0xf002
|
xor $4,$2,$3
|
xor $4,$2,$3
|
sb $4,0($20)
|
sb $4,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#h: XORI
|
#h: XORI
|
ori $2,$0,'h'
|
ori $2,$0,'h'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,0xf043
|
ori $2,$0,0xf043
|
xor $4,$2,0xf002
|
xor $4,$2,0xf002
|
sb $4,0($20)
|
sb $4,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
|
|
######################################
|
######################################
|
#Move Instructions
|
#Move Instructions
|
######################################
|
######################################
|
MoveTest:
|
MoveTest:
|
ori $2,$0,'M'
|
ori $2,$0,'M'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'o'
|
ori $2,$0,'o'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'v'
|
ori $2,$0,'v'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'e'
|
ori $2,$0,'e'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#a: MFHI
|
#a: MFHI
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,65
|
ori $2,$0,65
|
mthi $2
|
mthi $2
|
mfhi $3
|
mfhi $3
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#b: MFLO
|
#b: MFLO
|
ori $2,$0,'b'
|
ori $2,$0,'b'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,65
|
ori $2,$0,65
|
mtlo $2
|
mtlo $2
|
mflo $3
|
mflo $3
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#c: MTHI
|
#c: MTHI
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,65
|
ori $2,$0,65
|
mthi $2
|
mthi $2
|
mfhi $3
|
mfhi $3
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#d: MTLO
|
#d: MTLO
|
ori $2,$0,'d'
|
ori $2,$0,'d'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,65
|
ori $2,$0,65
|
mtlo $2
|
mtlo $2
|
mflo $3
|
mflo $3
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
|
|
######################################
|
######################################
|
#Shift Instructions
|
#Shift Instructions
|
######################################
|
######################################
|
ShiftTest:
|
ShiftTest:
|
ori $2,$0,'S'
|
ori $2,$0,'S'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'h'
|
ori $2,$0,'h'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'i'
|
ori $2,$0,'i'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'f'
|
ori $2,$0,'f'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'t'
|
ori $2,$0,'t'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#a: SLL
|
#a: SLL
|
ori $2,$0,'a'
|
ori $2,$0,'a'
|
sb $2,0($20)
|
sb $2,0($20)
|
li $2,0x40414243
|
li $2,0x40414243
|
sll $3,$2,8
|
sll $3,$2,8
|
srl $3,$3,24
|
srl $3,$3,24
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#b: SLLV
|
#b: SLLV
|
ori $2,$0,'b'
|
ori $2,$0,'b'
|
sb $2,0($20)
|
sb $2,0($20)
|
li $2,0x40414243
|
li $2,0x40414243
|
ori $3,$0,8
|
ori $3,$0,8
|
sllv $3,$2,$3
|
sllv $3,$2,$3
|
srl $3,$3,24
|
srl $3,$3,24
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#c: SRA
|
#c: SRA
|
ori $2,$0,'c'
|
ori $2,$0,'c'
|
sb $2,0($20)
|
sb $2,0($20)
|
li $2,0x40414243
|
li $2,0x40414243
|
sra $3,$2,16
|
sra $3,$2,16
|
sb $3,0($20)
|
sb $3,0($20)
|
li $2,0x84000000
|
li $2,0x84000000
|
sra $3,$2,25
|
sra $3,$2,25
|
sub $3,$3,0x80
|
sub $3,$3,0x80
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#d: SRAV
|
#d: SRAV
|
ori $2,$0,'d'
|
ori $2,$0,'d'
|
sb $2,0($20)
|
sb $2,0($20)
|
li $2,0x40414243
|
li $2,0x40414243
|
ori $3,$0,16
|
ori $3,$0,16
|
srav $3,$2,$3
|
srav $3,$2,$3
|
sb $3,0($20)
|
sb $3,0($20)
|
ori $3,$0,25
|
ori $3,$0,25
|
li $2,0x84000000
|
li $2,0x84000000
|
srav $3,$2,$3
|
srav $3,$2,$3
|
sub $3,$3,0x80
|
sub $3,$3,0x80
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#e: SRL
|
#e: SRL
|
ori $2,$0,'e'
|
ori $2,$0,'e'
|
sb $2,0($20)
|
sb $2,0($20)
|
li $2,0x40414243
|
li $2,0x40414243
|
srl $3,$2,16
|
srl $3,$2,16
|
sb $3,0($20)
|
sb $3,0($20)
|
li $2,0x84000000
|
li $2,0x84000000
|
srl $3,$2,25
|
srl $3,$2,25
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
#f: SRLV
|
#f: SRLV
|
ori $2,$0,'f'
|
ori $2,$0,'f'
|
sb $2,0($20)
|
sb $2,0($20)
|
li $2,0x40414243
|
li $2,0x40414243
|
ori $3,$0,16
|
ori $3,$0,16
|
srlv $4,$2,$3
|
srlv $4,$2,$3
|
sb $4,0($20)
|
sb $4,0($20)
|
ori $3,$0,25
|
ori $3,$0,25
|
li $2,0x84000000
|
li $2,0x84000000
|
srlv $3,$2,$3
|
srlv $3,$2,$3
|
sb $3,0($20)
|
sb $3,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
|
|
ori $2,$0,'D'
|
ori $2,$0,'D'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'o'
|
ori $2,$0,'o'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'n'
|
ori $2,$0,'n'
|
sb $2,0($20)
|
sb $2,0($20)
|
ori $2,$0,'e'
|
ori $2,$0,'e'
|
sb $2,0($20)
|
sb $2,0($20)
|
sb $23,0($20)
|
sb $23,0($20)
|
sb $21,0($20)
|
sb $21,0($20)
|
|
|
|
|
$DONE:
|
$DONE:
|
j $DONE
|
j $DONE
|
nop
|
nop
|
|
|
|
.set reorder
|
|
.end entry
|
|
|
.set reorder
|
|
.end entry
|
|
|
|
|
|
No newline at end of file
|
No newline at end of file
|
