Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
Force Label Type to SHORT
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  Syntax:   SHORT label
 
  See also: JMP, OPTION LJMP
 
  Description:
 
     Forces <label> type to SHORT. Normally, the assembler selects
     short jumps and branches when possible, but SHORT can be used to
     generate an error if a short jump to <label> is not possible. It
     disables any automatic conditional-jump lengthening (OPTION LJMP).
 
     Short labels can be used in JMP instructions when the distance is
     less than 128 bytes from the start of the next instruction. This
     saves a byte of memory and reduces the number of clock cycles used.
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