DLR, Debug Link Register

The DLR characteristics are:

Purpose

In Debug state, holds the address to restart from.

Configuration

AArch32 System register DLR bits [31:0] are architecturally mapped to AArch64 System register DLR_EL0[31:0].

This register is present only when AArch32 is supported. Otherwise, direct accesses to DLR are UNDEFINED.

Attributes

DLR is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
ADDR

ADDR, bits [31:0]

Restart address.

Accessing DLR

Accesses to this register use the following encodings in the System register encoding space:

MRC{<c>}{<q>} <coproc>, {#}<opc1>, <Rt>, <CRn>, <CRm>{, {#}<opc2>}

coprocopc1CRnCRmopc2
0b11110b0110b01000b01010b001

if !HaveAArch32() then UNDEFINED; elsif !Halted() then UNDEFINED; else R[t] = DLR;

MCR{<c>}{<q>} <coproc>, {#}<opc1>, <Rt>, <CRn>, <CRm>{, {#}<opc2>}

coprocopc1CRnCRmopc2
0b11110b0110b01000b01010b001

if !HaveAArch32() then UNDEFINED; elsif !Halted() then UNDEFINED; else DLR = R[t];


19/09/2024 21:50; f38fb98db05c9431684175106ec86e1bac8166e3

Copyright © 2010-2024 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.