In SX Microcontrollers, SX/B Compiler and SX-Key Tool, InSilico wrote:

the fastest method I know for looking up 10 numbers is using a table, for example in SX Assembly for the IEC 60063 E12 numbers:

[code]
E12Table
  jmp     pc+w
  retw    10 ;0 

  retw    12 ;1 

  retw    15 ;2 

  retw    18 ;3 

  retw    22 ;4 

  retw    27 ;5 

  retw    33 ;6 

  retw    39 ;7 

  retw    47 ;8 

  retw    56 ;9 

  retw    68 ;10 

  retw    82 ;11 
[/code]
you load the index into w before calling this subroutine to get the indexed value:



[code]
mov     w, #8 

call    Table 

; w register now contains '47' 
[/code]

hope this helps!

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