INSTRUCTION DESCRIPTIONS

SBC

Subtract Long with Carry

Instruction Format:

SBC S,D

Opcode:

SBC

 

23

 

8

7

4

3

0

 

 

 

 

 

 

 

 

 

 

 

 

DATA BUS MOVE FIELD

 

0 0 1 J

 

d

1 0 1

 

 

 

 

 

 

 

 

 

 

OPTIONAL EFFECTIVE ADDRESS EXTENSION

Instruction Fields:

S,D

J d

X,A

0 0

X,B

0 1

Y,A

1 0

Y,B

1 1

Timing: 2+mv oscillator clock cycles

Memory: 1+mv program words

MOTOROLA

INSTRUCTION SET DETAILS

A - 273

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Image 542
Motorola DSP56000, 24-Bit Digital Signal Processor manual Instruction Format, Sbc S,D