Last century architectures which are still procrastinated electronic technology by
orthodox instruction sets include two types of instructions, I-type and K-type. These
two assume that data is taken from passive zone and delivered to active zone, where
sometimes after several cycles of processing go back to passive zone (for I-type).
K-type serves the purpose to grab data from passive zone and process, saving
results inside active zone for immediate further use.
Please note that passive zone is not starting any instruction; instruction is either
initiated by external zone or by active zone. There are some natural questions we
might ask here:
AZ
IZ
(a)
(b)
(c)
(d)
(e)
(f)
(i)
(j)
(g)
(h)
AZ
IZ
PZ
AZ
IZ
PZ
AZ
IZ
PZ
IZ
PZ
AZ
IZ
PZ
AZ
AZ
IZ
PZ
IZ
PZ
AZ
AZ
IZ
PZ
AZ
IZ
PZ
Fig. 17.12 Types of instructions
17.5 Hardware Performance
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