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Program Status Register: APSR, IPSR, EPSR (xPSR)

Updated 18 May 2026

Contents & prerequisites

Prerequisites

Processor Registers: R0–R12, SP (R13), LR (R14), PC (R15)

Unlocks

Stack Pointer Types: MSP (Main) and PSP (Process)

Article in preparation

Program Status Register: APSR, IPSR, EPSR (xPSR)

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Learning

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Evidence

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