INSTRUCTION DESCRIPTIONS

 

JSET

 

Jump if Bit Set

 

 

 

 

Instruction Format:

 

 

 

 

 

 

 

 

JSET #n,X:aa,xxxx

 

 

 

 

 

 

 

 

JSET #n,Y:aa,xxxx

 

 

 

 

 

 

 

Opcode:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

16

15

8

7

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 0 0 0 1 0 1 0

0 0 a

a a a a a

1 S 1 b b b b b

 

 

 

 

 

 

 

 

 

 

 

 

 

ABSOLUTE ADDRESS EXTENSION

Instruction Fields:

#n=bit number=bbbbb,

aa=6-bit Absolute Short Address=aaaaaa, xxxx=16-bit Absolute Address in extension word

Absolute Short Address aaaaaa

Memory SpaceS

Bit Number bbbbb

000000

X Memory

0

00000

Y Memory

1

 

 

10111

111111

Timing: 6+jx oscillator clock cycles

Memory: 2 program words

MOTOROLA

INSTRUCTION SET DETAILS

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Page 402
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Motorola DSP56000 manual Jump if Bit Set Instruction Format, Absolute Short Address aaaaaa Memory SpaceS Bit Number bbbbb