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ARM Architecture Reference Manual ARMv7-A and ARMv7-R edition

ARM Architecture Reference Manual ARMv7-A and ARMv7-R edition

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H.4.3 System level instruction set support<br />

<strong>ARM</strong>v4 <strong>and</strong> <strong>ARM</strong>v5 Differences<br />

The register <strong>and</strong> immediate forms of the MRS <strong>and</strong> MSR instructions are used to manage the CPSR <strong>and</strong> SPSR<br />

as applicable. Other system level instructions are:<br />

LDM (exception return) <strong>and</strong> LDM (user registers)<br />

LDRBT <strong>and</strong> LDRT<br />

STM (user registers)<br />

STRBT <strong>and</strong> STRT<br />

SUBS PC, LR <strong>and</strong> related instructions<br />

VMRS <strong>and</strong> VMSR where VFP is supported.<br />

All system level support is from <strong>ARM</strong> state.<br />

<strong>ARM</strong> DDI 0406B Copyright © 1996-1998, 2000, 2004-2008 <strong>ARM</strong> Limited. All rights reserved. AppxH-17

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