Freescale-semiconductor StarCore SC140 Bedienungsanleitung PDF herunterladen (Seite 604)

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A-290 SC140 DSP Core Reference Manual

MOVE.W

MOVE.W (Rn+u3),DR

MOVE.W DR,(Rn+u3)

Moves a signed word between a data or address register (DR) and a memory address pointed to by an

address register (Rn) with an unsigned 3-bit offset that is preshifted right by 1 bit. The offset u3, defined by

the programmer, must be an even integer from 0–14. It is encoded by the assembler with 3 bits, thus

creating a 3-bit offset, which is coded in the instruction. The core, when decoding the instruction, post

shifts left the 3-bit offset to reconstruct the real offset. This feature enables condensed code size when short

immediates are needed.

MOVE.W (Rn+s15),DR

MOVE.W DR,(Rn+s15)

Moves a signed word between a data or address register (DR) and a memory address pointed to by an

address register (Rn) with a signed 15-bit offset.

MOVE.W (Rn+Rr),DR

MOVE.W DR,(Rn+Rr)

Moves a signed word between a data or address register (DR) and a memory address pointed to by an

address register (Rn) with an offset contained in another address register (Rr). The second address register

(Rr) is shifted left by one bit prior to being added. The modifier mode of this instruction is determined by

Rn in MCTL. Rr is limited to R0–R7.

MOVE.W (EA),DR

MOVE.W DR,(EA)

Moves a signed word between a data or address register (DR) and a memory address pointed to by (EA) an

address register with an optional offset or post-increment.

MOVE.W (Rn),C3

MOVE.W C3,(Rn)

Moves a signed word between a control, offset, or modifier register (C3) and a memory address pointed to

by an address register (Rn).

MOVE.W (SP–u6),DR

MOVE.W DR,(SP–u6)

Moves a signed word between a data or address register (DR) and a memory address pointed to by the

active stack pointer (SP) minus a 6-bit unsigned offset.

MOVE.W (SP+s15),C4

MOVE.W C4,(SP+s15)

Moves a signed word between a general register (C4) and a memory address pointed to by the active stack

pointer (SP) with a signed 15-bit offset.

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