UPD77017GC datasheet(28/60 Pages) NEC

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Monadic

Cumulation

ro'+ = ro

ro'

← ro'+ro

Degression

ro'– = ro

ro'

← ro'–ro

Division

ro'/ = ro

if (sign(ro')==sign(ro))

{ro'

← (ro'–ro)<<1}

else

{ro'

← (ro'+ro)<

if (sign(ro')==0

{ro'

← ro'+1}

Parallel load/store

ro=

∗dpx_mod ro'=∗dpy_mod

← ∗dpx, ro' ← ∗dpy

Note 1, Note 2

ro=

∗dpx_mod ∗dpy_mod=rh

← ∗dpx, ∗dpy ← rh

∗dpx_mod=rh ro=∗dpy_mod

∗dpx ← rh, ro ← ∗dpy

∗dpx_mod=rh ∗dpy_mod=rh'

∗dpx ← rh, ∗dpy ← rh'

Section load/store

dest=

∗dpx_mod dest'=∗dpy_mod

dest

← ∗dpx, dest' ← ∗dpy

Note 1, Note 2, Note 3

dest=

∗dpx_mod ∗dpy_mod=source

dest

← ∗dpx, ∗dpy ← source

∗dpx_mod=source dest=∗dpy_mod

∗dpx ← source, dest ← ∗dpy

∗dpx_mod=source ∗dpy_mod=source'

∗dpx ← source, ∗dpy ← source'

Concurrent Writing Processing

Flag

TRI.

DYAD. MONAD.

Load/

TRANS.

IMM.

BR. LOOP.

CTL. OV

store

Name

Mnemonic

Operation

Note 1.

One or both of a mnemonic pair can be written.

After execution of load/store, data is modified by mod.

One of following mnemonic should be selected: dest, dest' = {ro, reh, re, rh, rl}, source, source' = {re, rh, rl}.

Load/store

UPD77017GC Datasheet(PDF) 28 Page - NEC

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