ORN (T32 only)
Logical OR NOT.
Syntax
ORN{S}{condRdRnOperand2
where:
Sis an optional suffix. If S is specified, the condition flags are updated on the result of the operation.
condis an optional condition code.
Rdis the destination register.
Rnis the register holding the first operand.
Operand2is a flexible second operand.
Operation
The ORN T32 instruction performs an OR operation
on the bits in Rn with the complements of the
corresponding bits in the value of Operand2.
In certain circumstances, the assembler can substitute ORN for ORR,
or ORR for ORN.
Be aware of this when reading disassembly listings.
Use of PC
You cannot use PC (R15) for Rd or
any operand in the ORN instruction.
Condition flags
If S is specified, the ORN instruction:
- Updates the N and Z flags according to the result.
- Can update the C flag during the calculation of
Operand2. - Does not affect the V flag.
Examples
ORN r7, r11, lr, ROR #4
ORNS r7, r11, lr, ASR #32Architectures
This 32-bit instruction is available in T32.
There is no A32 or 16-bit T32 ORN
instruction.