From: ThatWouldBeTelling@thevillage.com   
      
   MitchAlsup wrote:   
   >   
   > However, I also found that STs need an immediate and a displacement, so,   
   > Major == 0b'001001 and minor == 0b'011xxx has 4 ST instructions with   
   > potential displacement (from D12ds above) and the immediate has the   
   > size of the ST. This provides for::   
   >      	std	#4607182418800017408,[r3,r2<<3,96]   
      
   Compare and Branch can also use two immediates as it   
   has reg-reg or reg-imm compares plus displacement.   
   And has high enough frequency to be worth considering.   
      
   But it also doesn't need two immediates.   
   A 16-bit integer or float and a 16-bit offset packed into a   
   single 32-bit immediate would suffice for most purposes.   
      
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