3.5.1. The condition code flags

The N, Z, C and V bits are the condition code flags. These may be changed as a result of arithmetic and logical operations, and may be tested to determine whether an instruction should be executed.

In ARM state, all instructions may be executed conditionally. In THUMB state, only the Branch instruction is capable of conditional execution. See the ARM Architecture Reference Manual (ARM DDI 0100) for details.

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