SETEND specifier

where:

Use SETEND to access data of different endianness, for example, to access several big-endian DMA-formatted data fields from an otherwise little-endian application.

This ARM instruction is available in ARMv6 and above.

This 16-bit Thumb instruction is available in T variants of ARMv6 and above, except the ARMv6-M and ARMv7-M architectures.

There is no 32-bit Thumb version of this instruction.

    SETEND  BE          ; Set the CPSR E bit for big-endian accesses
    LDR     r0, [r2, #header]
    LDR     r1, [r2, #CRC32]
    SETEND  le          ; Set the CPSR E bit for little-endian accesses for the
                        ; rest of the application