Routines 
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For example, if A is 3 (00000011) at input, then at output, A will be 192 (11000000).
Used by the routine at 52635.


52924  PUSH BC  Store BC  
52925  LD B,8  Load B with 8 (eight bits)  
52927  LD C,0  Load C with zero  
52929  RRA  Shift bit right out of A and into carry flag  
52930  RL C  Shift bit left out of carry flag and into C  
52932  DJNZ 52929  Loop back to 52929 for next bit  
52934  LD A,C  Load modified bitmap back into A  
52935  POP BC  Restore BC  
52936  RET  Return 
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