Analog Devices ADSP-21020 Bedienungsanleitung Seite 7
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ADSP-21020
REV. C
–7–
COMPUTE AND MOVE OR MODIFY INSTRUCTIONS
1. compute,
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DM(Ia, Mb) = dreg1
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,
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PM(Ic, Md) = dreg2
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;
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dreg1 = DM(Ia, Mb)
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dreg2 = PM(Ic, Md)
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2. IF condition compute;
3a. IF condition compute,
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DM(Ia, Mb)
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= ureg ;
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PM(Ic, Md)
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3b. IF condition compute,
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DM(Mb, Ia)
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= ureg ;
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PM(Md, Ic)
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3c. IF condition compute, ureg =
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DM(Ia, Mb)
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;
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PM(Ic, Md)
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3d. IF condition compute, ureg =
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DM(Mb, Ia)
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;
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PM(Md, Ic)
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4a. IF condition compute,
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DM(Ia, <data6>)
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= dreg ;
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PM(Ic, <data6>)
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4b. IF condition compute,
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DM(<data6>, Ia)
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= dreg ;
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PM(<data6>, Ic)
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4c. IF condition compute, dreg =
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DM(Ia, <data6>)
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;
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PM(Ic, <data6>)
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4d. IF condition compute, dreg =
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DM(<data6>, Ia)
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;
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PM(<data6>, Ic)
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5. IF condition compute, ureg1 = ureg2 ;
6a. IF condition shiftimm,
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DM(Ia, Mb)
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= dreg ;
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PM(Ic, Md)
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6b. IF condition shiftimm, dreg =
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DM(Ia, Mb)
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;
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PM(Ic, Md)
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7. IF condition compute, MODIFY
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(Ia, Mb)
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;
7. IF condition compute, MODIFY
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(Ic, Md)
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PROGRAM FLOW CONTROL INSTRUCTIONS
8. IF condition
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JUMP
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<addr24>
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(
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DB
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) ;
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CALL
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(PC, <reladdr6>)
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(
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LA
,
|
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CALL
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(PC, <reladdr6>)
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(
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DB, LA
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9. IF condition
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JUMP
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(Md, Ic)
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(
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DB
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),compute ;
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CALL
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(PC, <reladdr6>)
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(
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LA
,
|
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CALL
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(PC, <reladdr6>)
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(
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DB, LA
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11. IF condition
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RTS
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(
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DB,
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),compute ;
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RTI
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(
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LA,
|
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RTI | (
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DB, LA
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12. LCNTR =
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<data16>
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,DO
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<addr24>
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UNTIL LCE ;
12. LCNTR =
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ureg
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,DO
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(
<PC, <reladdr24>)
(
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UNTIL LCE ;
13. LCNTR =
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<data16>
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, DO
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<addr24>
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UNTIL termination ;
12. LCNTR =
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ureg
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,DO
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(
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(PC, <reladdr24>)
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(DB) Delayed branch
(LA) Loop abort (pop loop PC stacks on branch)
Lanair HI140 manuály
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