ADSP21020 datasheet(7/32 Pages) AD

7 / 32 page

ADSP-21020

REV. C

–7–

COMPUTE AND MOVE OR MODIFY INSTRUCTIONS

compute,

|DM(Ia, Mb) = dreg1| ,

|PM(Ic, Md) = dreg2| ;

|dreg1 = DM(Ia, Mb)||dreg2 = PM(Ic, Md)|

IF condition

compute;

3a.

IF condition

compute,

|DM(Ia, Mb)| = ureg ;

|PM(Ic, Md) |

3b.

IF condition

compute,

|DM(Mb, Ia)| = ureg ;

|PM(Md, Ic) |

3c.

IF condition

compute,

ureg =

|DM(Ia, Mb)| ;

|PM(Ic, Md) |

3d.

IF condition

compute,

ureg =

|DM(Mb, Ia)| ;

|PM(Md, Ic) |

4a.

IF condition

compute,

|DM(Ia, <data6>)| = dreg ;

|PM(Ic, <data6>) |

4b.

IF condition

compute,

|DM(<data6>, Ia)| = dreg ;

|PM(<data6>, Ic) |

4c.

IF condition

compute,

dreg =

|DM(Ia, <data6>)| ;

|PM(Ic, <data6>) |

4d.

IF condition

compute,

dreg =

|DM(<data6>, Ia)| ;

|PM(<data6>, Ic) |

IF condition

compute,

ureg1 = ureg2 ;

6a.

IF condition

shiftimm,

|DM(Ia, Mb)| = dreg ;

|PM(Ic, Md) |

6b.

IF condition

shiftimm,

dreg =

|DM(Ia, Mb)| ;

|PM(Ic, Md) |

IF condition

compute,

MODIFY

|(Ia, Mb) | ;

IF condition

compute,

MODIFY |(Ic, Md) |

PROGRAM FLOW CONTROL INSTRUCTIONS

IF condition

|JUMP ||<addr24>

(

|DB

|) ;

|CALL ||(PC, <reladdr6>) |

(|LA,

|CALL||(PC, <reladdr6>) |

(

|DB, LA |

IF condition

|JUMP ||(Md, Ic)

(

|DB

|), compute ;

|CALL ||(PC, <reladdr6>) |

(|LA,

|CALL||(PC, <reladdr6>) |

(

|DB, LA |

11.

IF condition

|RTS |

(

|DB,

|), compute ;

|RTI |

(|LA,

|RTI |

(

|DB, LA |

12.

LCNTR =

|<data16> | ,DO |<addr24>

| UNTIL LCE ;

12.

LCNTR =

|ureg

| ,DO |(<PC, <reladdr24>)( | UNTIL LCE ;

13.

LCNTR =

|<data16> | , DO |<addr24>

| UNTIL termination ;

12.

LCNTR =

|ureg

| ,DO |(|(PC, <reladdr24>) |

(DB) Delayed branch

(LA) Loop abort (pop loop PC stacks on branch)

ADSP21020 Datasheet(PDF) 7 Page - Analog Devices

ADSP21020 Datasheet(HTML) 7 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Datasheet Download

Link URL