Answer:
Yes. The second instruction in its translation is a ordinary load instruction which requires a delay of one instruction before the loaded value can be used.
Yes. The second instruction in its translation is a ordinary load instruction which requires a delay of one instruction before the loaded value can be used.
The
nop
pseudoinstruction
translates into
sll $0,$0,0.
This is the "no operation" instruction we have been
using all along.
nop # no operation.
# do nothing for one machine cycle.
# (pseudoinstruction)
The
sw
mnemonic is used both by
the basic assembler and the extended assembler.
As a pseudoinstruction it can store a register
to memory in one instruction.
sw d,exp # Store register $d into the word at address exp.
# exp can be any of several expression types
# that evaluate to an address
# (pseudoinstruction)
Of course, this is implemented as several basic instructions.
Play Pseudocomputer: translate the
sw
instruction into non-extended instructions: