CMD_BITS_MASK

32

#define DECODE_CMD_AA(x) (((x) >> 6) & CMD_BITS_MASK)

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#define DECODE_CMD_BB(x) (((x) >> 4) & CMD_BITS_MASK)

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#define DECODE_CMD_CC(x) (((x) >> 2) & CMD_BITS_MASK)

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#define DECODE_CMD_DD(x) ((x) & CMD_BITS_MASK)

8

#define COMPOSIT(x, s) (((x) & CMD_BITS_MASK) << (s))