arm - How to load register with predefined bytes in Assembly -


using arm assembly, want load r0 predefined bytes a, b, c, d. in .data section have them defined as:

a:    .byte    0xff b:    .byte    0xaa c:    .byte    0x88 d:    .byte    0x77

i want r0 ffaa8877 when said , done. not sure should using .byte or .word or else a, b, c, d.

edit: here i'm trying r0:

@on entry: r0 holds word swapped @on exit: r0 holds swapped word, r1 destroyed @r0 = a, b, c, d byteswap:     eor r1, r0, r0, ror #16     bic r1, r1, #0xff0000     mov r0, r0, ror #8     eor r0, r0, r1, lsr #8

here shortcut.

ldr r0,=0xffaa8877

or can same thing manually...

ldr r0,my_number ... my_number: .word 0xffaa8877

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