Subversion Repositories mips32

MAIN:
##initialize the value to 1
addi $s0, $zero, 1
sw $s0, 4($zero)
addi $s1, $zero, 8
addi $s2, $zero, 1
jal DELAY_S
START:
lw $s3, 4($zero)
beq $s3, $s1, MAIN
sllv $s3, $s3, $s2
sw $s3, 4($zero)
jal DELAY_S
j START

# function of delay 1 second when clk = 50MHz
# the total cycles is 50M/5=10M cycles = 10000 x 1000
DELAY_S:
ori $t1, $zero, 0
ori $a0, $zero, 10000   #10000
ori $a1, $zero, 1000    #1000
DELAY_LOOP1:
ori $t0, $zero, 0
DELAY_LOOP2:
addi $t0, $t0, 1
bne $t0, $a0, DELAY_LOOP2
addi $t1, $t1, 1
bne $t1, $a1, DELAY_LOOP1
jr $ra