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Texas Instruments TMS320C67X/C67X+ DSP User Manual

Page 198

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LDW

Load Word From Memory With a 5-Bit Unsigned Constant Offset or Register Offset

3-138

Instruction Set

SPRU733

Example 1

LDW .D1

*A10,B1

Before LDW

1 cycle after LDW

5 cycles after LDW

B1 0000 0000h

B1 0000 0000h

B1 21F3 1996h

A10 0000 0100h

A10 0000 0100h

A10 0000 0100h

mem 100h

21F3 1996h

mem 100h

21F3 1996h

mem

100h

21F3 1996h

Example 2

LDW .D1

*A4++[1],A6

Before LDW

1 cycle after LDW

5 cycles after LDW

A4 0000 0100h

A4 0000 0104h

A4 0000 0104h

A6 1234 4321h

A6 1234 4321h

A6 0798 F25Ah

AMR 0000 0000h

AMR 0000 0000h

AMR 0000 0000h

mem 100h

0798 F25Ah

mem 100h

0798 F25Ah

mem 100h

0798 F25Ah

mem 104h

1970 19F3h

mem 104h

1970 19F3h

mem 104h

1970 19F3h

Example 3

LDW .D1

*++A4[1],A6

Before LDW

1 cycle after LDW

5 cycles after LDW

A4 0000 0100h

A4 0000 0104h

A4 0000 0104h

A6 1234 5678h

A6 1234 5678h

A6 0217 6991h

AMR 0000 0000h

0000 0000h

AMR 0000 0000h

mem 104h

0217 6991h

mem 104h

0217 6991h

mem 104h

0217 6991h