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Inca, Increment register (agu), Example 1 – Freescale Semiconductor StarCore SC140 User Manual

Page 515: Example 2, Operation assembler syntax

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INCA

SC140 DSP Core Reference Manual

A-201

INCA

Increment Register (AGU)

INCA

Description

Status and Conditions that Affect Instruction

Status and Conditions Changed by Instruction

None.

Example 1

inca r0

Example 2

inca r0

Operation

Assembler Syntax

Rx + 1

→ Rx

INCA Rx

INCA Rx

Adds one to an AGU register (Rx). The stack pointer (SP) cannot be used as an operand by this instruction.

Note:

The assembler maps this instruction to ADDA #u5,Rx, where #u5 = 1.

Register Address

Bit Name

Description

MCTL[31:0]

AM3–AM0 Address modification bits when updating R0–R7. Otherwise, the

instruction is not affected by MCTL.

Register/Memory Address

Before

After

MCTL

$0000 0000

R0

$074F 312A

$074F 312B

Register/Memory Address

Before

After

MCTL

$0000 0000

R0

$FFFF FFFF

$0000 0000