TMS320F datasheet(236/389 Pages) TI

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POPD

Pop Top of Stack to Data Memory

7-136

Syntax

POPD

dma

Direct addressing

POPD

ind [, ARn]

Indirect addressing

Operands

dma:

7 LSBs of the data-memory address

Value from 0 to 7 designating the next auxiliary register

ind:

Select one of the following seven options:

*–

*0+

*0–

*BR0+

*BR0–

POPD

dma

987

6543

210

dma

POPD

ind [,ARn]

987

6543

210

ARU

NAR

Note:

ARU, N, and NAR are defined in section 6.3,

Indirect Addressing Mode (page 6-9).

Execution

Increment PC, then ...

(TOS)

→ data-memory address

Pop stack one level

Status Bits

None

Description

The value from the top of the stack is transferred into the data-memory location

specified by the instruction. In the lower seven locations of the stack, the val-

ues are copied up one level. The stack operation is explained in the description

for the POP instruction. No provision exists to check stack underflow.

Words

Cycles for a Single POPD Instruction

Program

Operand

ROM

DARAM

SARAM

External

DARAM

1+p

SARAM

1, 2†

1+p

External

2+d

4+d+p

† If the operand and the code are in the same SARAM block

Opcode

Cycles

TMS320F Datasheet(PDF) 236 Page - Texas Instruments

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