UPD77018A NEC, UPD77018A Datasheet - Page 23

• Manufacturer Part Number: UPD77018A
• Description: 16 bits/ Fixed-point Digital Signal Processor
• Manufacturer: NEC

3. INSTRUCTIONS
3.1 Outline
per instruction. There are following 9 instruction types.
All PD77018A instructions are one-word instructions, consisting of 32 bits. And they are executed in 16.6 ns (min.)
(1) Trinomial instructions
(2) Dyadic operation instructions
(3) Monadic operation instructions
(4) Load/store instructions
(5) Inter-register transfer instructions
(6) Immediate data set instructions
(7) Branch instructions
(8) Hardware loop instructions
(9) Control Instructions
: specify the Acc operation. 3 of general registers are specified optionally as the operation object.
: specify the Acc, ALU or shifter operation. 2 of general registers are specified optionally as the operation
: specify operations by ALU. 1 general register is specified optionally as the operation object.
: transfer 16 bits data from memory to general registers, from general registers to memory and between
: transfer data between general register and other registers.
: set immediate data at general registers or each registers of address operation unit.
: specify the direction of the program flow.
: specify times of instruction repeating.
: specify the control program.
object. Some instructions can specify a general register and immediate data.
general registers.
PD77018A, 77019
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