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Text File  |  1998-03-23  |  334 b   |  27 lines
  1.  
  2.         .extern    SwapSHORT
  3.         .extern    SwapLONG
  4.  
  5. # AB -> BA
  6.  
  7.         .align    4
  8.  
  9. SwapSHORT:    mr    r4,r3
  10.         rlwinm    r3,r4,24,24,31        # 000A
  11.         rlwimi    r3,r4,8,16,23        # 00BA
  12.         blr
  13.  
  14.  
  15. # ABCD -> DCBA
  16.  
  17.         .align    4
  18.  
  19. SwapLONG:    mr    r4,r3
  20.         rlwimi    r3,r4,8,24,31        # xxxA
  21.         rlwimi    r3,r4,24,16,23        # xxBA
  22.         rlwimi    r3,r4,8,8,15        # xCBA
  23.         rlwimi    r3,r4,24,0,7        # DCBA
  24.         blr
  25.  
  26.  
  27.