UPD703003 datasheet(46/82 Pages) NEC

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µPD703003

Data Sheet U12261EJ2V1DS00

15. INSTRUCTION SET

• How to read instruction set tables

Table 15-1. Symbols Used to Indicate Operands

Symbol

Description

reg1

General registers (r0 to r31): used as source registers

reg2

General registers (r0 to r31): mainly used as destination registers

Element pointer (r30)

bit#3

3-bit data used to specify bit number

immX

X bits immediate

dispX

X bits displaced

regID

System register number

vector

5-bit data used to specify trap vector (00H to 1FH)

cccc

4-bit data used to indicate condition code

Indicates the instruction group. Instructions are listed in these table according to their respective groups.

Indicates the mnemonic abbreviation for the instruction.

Indicates the instruction's operands (see Table 15-1).

Indicates the instruction binary code. The binary codes for 32-bit

instructions are shown in two levels (see Table 15-2).

Indicates instruction operation (see Table 15-3).

Indicates flag operations

(see Table 15-4).

Mnemonic

Operand

Opcode

Operation

Flags

SAT

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