plp.metafile
main.asm
sseg_display.asm
plp.simconfig
plp.hex
plp.image
PLP-5.0
START=268435456
DIRTY=0
ARCH=0
main.asm
sseg_display.asm
.org 0x10000000
li $sp, 0x10fffffc # Stack pointer initialization
li $s0, sseg_lut # Lookup table address used by sseg_display
lui $s1, 0xf070 # Interrupt controller register
lui $s2, 0xf0a0 # Seven segment display
# ****************************
# TODO: enable interrupts below
# ****************************
# NOTE: Do not add or modify any code within this main loop
main:
jal sseg_display
nop
addiu $a0, $a0, 1
j main
nop
# ****************************************
# TODO: add interrupt service routine below
# ****************************************
asm_file_trap:
# If your program ends up in this loop then your ISR is not being exited correctly
lui $s0, 0xf0a0
li $t0, 0x86afafff # “Err” on seven segment
sw $t0, 0($s0)
j asm_file_trap
nop
sseg_display:
move $t1, $a0
move $t3, $0
# Position 0
andi $t2, $t1, 0xf
sll $t2, $t2, 2
addu $t2, $t2, $s0 # Calculate LUT address
lw $t2, 0($t2)
or $t3, $t3, $t2
# Position 1
andi $t2, $t1, 0xf0
srl $t2, $t2, 2
addu $t2, $t2, $s0 # Calculate LUT address
lw $t2, 0($t2)
sll $t2, $t2, 8
or $t3, $t3, $t2
# Position 2
andi $t2, $t1, 0xf00
srl $t2, $t2, 6
addu $t2, $t2, $s0 # Calculate LUT address
lw $t2, 0($t2)
sll $t2, $t2, 16
or $t3, $t3, $t2
# Position 3
andi $t2, $t1, 0xf000
srl $t2, $t2, 10
addu $t2, $t2, $s0 # Calculate LUT address
lw $t2, 0($t2)
sll $t2, $t2, 24
or $t3, $t3, $t2
# Write to seven segment and increment
jr $ra
sw $t3, 0($s2)
# Seven segment display lookup table
sseg_lut:
.word 0xc0 # 0
.word 0xf9 # 1
.word 0xa4 # 2
.word 0xb0 # 3
.word 0x99 # 4
.word 0x92 # 5
.word 0x82 # 6
.word 0xf8 # 7
.word 0x80 # 8
.word 0x90 # 9
.word 0x88 # a
.word 0x83 # b
.word 0xc6 # c
.word 0xa1 # d
.word 0x86 # e
.word 0x8e # f
simRunnerDelay::19
simAllowExecutionOfArbitraryMem::true
simBusReturnsZeroForUninitRegs::true
simDumpTraceOnFailedEvaluation::false
WATCHER
END
MODS
0::RESERVED_FIELD::0::2048::noframe
0::RESERVED_FIELD::268435456::16777216::noframe
1::RESERVED_FIELD::4028628992::1::frame::true::0::0::0::0
2::RESERVED_FIELD::4027580416::1::frame::false::0::0::0::0
4::RESERVED_FIELD::4031774720::2::frame::false::0::0::0::0
7::RESERVED_FIELD::4032823296::1::noframe
9::RESERVED_FIELD::4037017600::1::frame::true::0::0::0::0
8::RESERVED_FIELD::4026531840::4::frame::false::0::0::0::0
6::RESERVED_FIELD::4030726144::2::frame::false::0::0::0::0
12::RESERVED_FIELD::4029677568::3::frame::false::0::0::0::0
END
ISASPECIFIC
END
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