ADSP-21020TG-120 데이터 시트보기 (PDF) - Analog Devices

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ADSP-21020TG-120

32/40-Bit IEEE Floating-Point DSP Microprocessor

Analog Devices 

ADSP-21020

IMMEDIATE MOVE INSTRUCTIONS

14a. DM(<addr32>) = ureg ;

PM(<addr24>)

14b. ureg =

DM(<addr32>) ;

PM(<addr24>)

15a. DM(<data32>, Ia) = ureg;

PM(< data24>, Ic)

15b. ureg =

DM(<data32>, Ia) ;

PM(<data24>, Ic)

16. DM(Ia, Mb) = <data32>;

PM(Ic, Md)

17. ureg = <data32>;

MISCELLANEOUS INSTRUCTIONS

18. BIT

19a. MODIFY

SET

CLR

TGL

TST

XOR

sreg <data32>;

(Ia, <data32>)|;

(Ic, <data32>)|

19b. BITREV

20. |PUSH

|POP

(Ia, <data32>) ;

LOOP ,

PUSH

POP

21. NOP ;

22. IDLE ;

STS ;

Table I. Syntax Notation Conventions

Notation

Meaning

UPPERCASE

;

,

italics

| between lines |

<datan>

<addrn>

<reladdrn>

compute

shiftimm

condition

termination

ureg

sreg

dreg

Ia

Mb

Ic

Md

Explicit syntax—assembler keyword (nota-

tion only; assembler is not case-sensitive

and lowercase is the preferred programming

convention)

Instruction terminator

Separates parallel operations in an

instruction

Optional part of instruction

List of options (choose one)

n-bit immediate data value

n-bit immediate address value

n-bit immediate PC-relative address value

ALU, multiplier, shifter or multifunction

operation (from Tables IV-VII)

Shifter immediate operation

(from Table VI)

Status condition (from Table II)

Termination condition (from Table II)

Universal register (from Table III)

System register (from Table III)

R15-R0, F15-F0; register file location

I7-I0; DAG1 index register

M7-M0; DAG1 modify register

I15-I8; DAG2 index register

M15-M8; DAG2 modify register

Table II. Condition and Termination Codes

Name

Description

eq

ne

ge

lt

le

gt

ac

not ac

av

not av

mv

not mv

ms

not ms

sv

not sv

sz

not sz

flag0_in

not flag0_in

flag1_in

not flag1_in

flag2_in

not flag2_in

flag3_in

not flag3_in

tf

not tf

lce

not lce

forever

true

ALU equal to zero

ALU not equal to zero

ALU greater than or equal to zero

ALU less than zero

ALU less than or equal to zero

ALU greater than zero

ALU carry

Not ALU carry

ALU overflow

Not ALU overflow

Multiplier overflow

Not multiplier overflow

Multiplier sign

Not multiplier sign

Shifter overflow

Not shifter overflow

Shifter zero

Not shifter zero

Flag 0

Not Flag 0

Flag 1

Not Flag l

Flag 2

Not Flag 2

Flag 3

Not Flag 3

Bit test flag

Not bit test flag

Loop counter expired (DO UNTIL)

Loop counter not expired (IF)

Always False (DO UNTIL)

Always True (IF)

In a conditional instruction, the execution of the entire instruction is based on

the specified condition.

–8–

REV. C

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