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Texas Instruments TMS320C67X/C67X+ DSP User Manual

Page 276

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SHR

Arithmetic Shift Right

3-216

Instruction Set

SPRU733

Pipeline
Stage

E1

Read

src1, src2

Written

dst

Unit in use

.S

Instruction Type

Single-cycle

Delay Slots

0

See Also

SHL, SHRU

Example 1

SHR .S1

A0,8,A1

Before instruction

1 cycle after instruction

A0 F123 63D1h

A0 F123 63D1h

A1 xxxx xxxxh

A1 FFF1 2363h

Example 2

SHR .S2

B0,B1,B2

Before instruction

1 cycle after instruction

B0 1492 5A41h

B0 1492 5A41h

B1 0000 0012h

B1 0000 0012h

B2 xxxx xxxxh

B2 0000 0524h

Example 3

SHR .S2

B1:B0,B2,B3:B2

Before instruction

1 cycle after instruction

B1:B0 0000 0012h

1492 5A41h

B1:B0 0000 0012h

1492 5A41h

B2 0000 0019h

B2 0000 090Ah

B3:B2 xxxx xxxxh

xxxx xxxxh

B3:B2 0000 0000h

0000 090Ah

Pipeline