Freescale-semiconductor StarCore SC140 Manual de usuario descargar pdf (Pagina 570)

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A-256 SC140 DSP Core Reference Manual

MOVE.2L

MOVE.2L Move Two Integer Longs MOVE.2L

to/from a Register Pair (AGU)

Description

These operations move two long words from registers to memory, or from memory to registers.

Status and Conditions that Affect Instruction

Status and Conditions Changed by Instruction

Example

move.2l d0:d1,(r0)

Operation Assembler Syntax

Da,Db ↔ (EA)

MOVE.2L Da:Db,(EA){0 ≤ EA < 2

,Q}

MOVE.2L (EA),Da:Db {0 ≤ EA < 2

,Q}

MOVE.2L Da:Db,(EA)

MOVE.2L (EA),Da:Db

Move two long signed integer words from a data register pair (Da:Db) to memory, or from memory to a

data register pair. The effective memory address of the two long words is obtained from an address register

with an optional offset or post-increment (EA).

The first operand (Da) will be moved to or from the lower memory address (EA). The second operand (Db)

will be moved to or from memory address (EA + 4). In order to keep this behavior in both big endian and

little endian modes, the core will drive or interpret the data bus differently in each mode. See Section 2.4.1,

“SC140 Endian Support,” on page 2-56, for more detail on bus and memory behavior for each mode.

The address register values used with this instruction must be a multiple of 8, quad word-aligned.

MCTL[31:0] AM3–AM0 Address modification bits when updating R0–R7. Otherwise, the

instruction is not affected by MCTL.

EMR[16] BEM Set if big endian mode, cleared if little endian mode.

Ln L Clears the Ln bit in the destination registers.

MCTL

$0000 0000

SIGN

EXTENSION

39 032

SIGN

EXTENSION

(EA)

(EA + 4)

1 2 ... 565 566 567 568 569 570 571 572 573 574 575 ... 759 760

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Freescale-semiconductor StarCore SC140 Manual de usuario Pagina 570

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