Instruction formats and opcodes instruction fields – Freescale Semiconductor StarCore SC140 User Manual

Page 532

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A-218

SC140 DSP Core Reference Manual

JT

Instruction Formats and Opcodes

Instruction Fields

Rn

RRR

Address Register

Instruction

Words Cycles Type

Opcode

15

8

7

0

JT label

3

1/4

1

Note 1: If not taken, the jump uses 1 cycle. If taken, the jump uses 4 cycles.

3

0

0

1

1

0

1

0

1

A

A

A

a

a

1

0

0

0

0

1

A

A

A

A

A

A

A

A

A

A

A

A

A

1

0

a

a

a

a

a

a

a

a

a

a

a

a

a

a

15

8

7

0

JT Rn

1

1/4

1

4

1

0

0

1

1

R R R

0

1

1

0

0

1

0

1

label

aaaaaaaaaaaaaaaaAAAAAAAAAAAAAAAA

absolute long address

Note:

Label must be word-aligned, LSBit = 0.

000

R0

010

R2

100

R4

110

R6

001

R1

011

R3

101

R5

111

R7

Note:

This instruction can specify R8-R15 as operands by using a high register prefix.

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