Define Addressing mode. Discuss the types of addressing modes in short with example.
Example 1: different addressing modes
add $14,$14,$13 # add contents of register $13 plus contents of
# register $14 and save the result in register $14
Example 2: different addressing modes
.data
student: .word 10000 #field code
.ascii "Smith" #field name
.byte # field test
.byte 80,80,90,100 # fields hw1,hw2,hw3,hw4
.text
__start:
la $3, student # load address of the structure in $3
# $3 base register
add $17,$0,90 # value 90 in register $17
# displacement of field "test" is 9 bytes
#
sb $17, 9($3) # store contents of register $17 in field "test"
# displacement addressing mode
done