implement hw_bswap16 and hw_bswap23 in ARMv7
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@ -13,9 +13,12 @@
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.text
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hw_bswap16:
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rev r0, r0
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mov r0, r0, lsr #16
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bx lr
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hw_bswap32:
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rev r0, r0
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bx lr
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hw_bswap64:
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