Instructions To Change The Cpsr E Bit - ARM ARM1176JZF-S Technical Reference Manual

4.7

Instructions to change the CPSR E bit

ARM DDI 0301H
ID012310
ARM and Thumb instructions are provided to set and clear the E-bit efficiently:
Sets the CPSR E bit
SETEND BE
SETEND LE Resets the CPSR E bit.
These are specified as unconditional operations to minimize pipelined implementation
complexity.
ARM1176JZF-S instruction set summary on page 1-32 describe these instructions.
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