... Notice
ARM, the ARM Powered logo, Thumb, and StrongARM are registered trademarks of ARM Limited.
The ARM logo, AMBA, Angel, ARMulator, EmbeddedICE, ModelGen, Multi-ICE, PrimeCell, ARM7 TDMI,
ARM7 TDMI-S, ... assemblers included in ARM Development Systems,
see the ARM Software Development Toolkit Reference Guide (ARM DUI 0041) for SDT 2.50, or the ARM
Developer Suite Tools...
... ARM architecture version 5 and above, and in T variants of ARM architecture version 4.
2. This is an undefined instruction is ARM architecture version 4, and is
UNPREDICTABLE prior to ARM
architecture ... on ARM
architecture version 5 and above and on T variants of ARM architecture version 4 (see The T bit on
page A2-11).
The unused bits of the status registers might...