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

Here are two makros that help to write portable code. When you compile it for the SX48/52, have the symbol SX48_52 defined.
Make sure that you only invoke the _mode and _bank macros instead of directly placing mode or bank instructions in the code.

[code]
_mode MACRO 1
  IFDEF SX48_52
    mov w, #\1
    mov m, w
  ELSE
    mov m, #\1
  ENDIF
ENDM

_bank macro 1
  bank \1                ; For SX18/20/28 change
                         ; FSR bits 7...5,
                         ; for SX48/52 change
                         ; FSR bits 6...4
  IFDEF SX48_52          ; For SX48/52 also change
    IF \1 & %10000000    ; FSR bit 7
      setb fsr.7
    ELSE
      clrb fsr.7
    ENDIF
  ENDIF
endm

[/code]

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