UPD77019-013 NEC, UPD77019-013 Datasheet - Page 25
UPD77019-013
Manufacturer Part Number
UPD77019-013
Description
16 bits/ Fixed-point Digital Signal Processor
Manufacturer
NEC
Datasheet
1.UPD77019-013.pdf
(56 pages)
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3.2 Instruction Set and Operation
descriptions can have only one selected.
ro, ro', ro"
rl, rl'
rh, rh'
re
reh
dp
dn
dm
dpx
dpy
dpx_mod
dpy_mod
dp_imm
Expression
An operation is written according to the rules for expressing. An expression of instructions having two or more
(a) Expressions and selectable registers
Expression and selectable registers are shown as follows.
R0H - R7H
R0EH - R7EH
R0 - R7
R0L - R7L
R0E - R7E
DP0 - DP7
DN0 - DN7
DMX, DMY
DP0 - DP3
DP4 - DP7
DPn, DPn++, DPn– –, DPn##, DPn%%, !DPn## (n = 0 - 3)
DPn, DPn++, DPn– –, DPn##, DPn%%, !DPn## (n = 4 - 7)
DPn##imm (n = 0 - 7)
content of memory address
Example
When the content of DP0 register is 1000, DP0 shows the content of memory
address 1000.
Preliminary Data Sheet
Selectable registers
PD77019-013
25
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