| Copyright © 2010-2011 ARM. All rights reserved. | ARM DDI 0460C |
| Non-Confidential | ID021511 |
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| Home > Programmers Model > Program status registers > The T bit |
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The T bit reflects the instruction set state:
when the T bit is set, the processor executes in Thumb state
when the T bit is clear, the processor executes in ARM state.
Never use an MSR instruction to force a
change to the state of the T bit in the CPSR. The processor ignores
any attempt to modify the T bit using an MSR instruction.
| Copyright © 2010-2011 ARM. All rights reserved. | ARM DDI 0460C |
| Non-Confidential | ID021511 |
| PDF version | |
| Home > Programmers Model > Program status registers > The T bit |