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Test bit and branch if zero to a label at a PC-relative offset, without affecting the condition flags, and with a hint that this is not a subroutine call or return.


TBZ  Rt, #imm, label



Is a width specifier, and can be either W or X.

In assembler source code an X specifier is always permitted, but a W specifier is only permitted when the bit number is less than 32.


Is the number of the general-purpose register to be tested, in the range 0 to 30, or the name ZR (31).


Is the bit number to be tested, in the range 0 to 63.


Is the program label to be conditionally branched to. It is an offset from the address of this instruction, in the range ±32KB.