Delphi Error – E2109 Constant expected

Delphi 11 Views 1 Min Read

Delphi Compiler Error

E2109 Constant expected

Reason for the Error & Solution

The inline assembler was expecting to find a constant but did not find one. 

program Produce;

  procedure Assembly(x : Integer);
  asm
    mov   ax, x MOD 10
  end;

begin
end.

The inline assembler is not capable of performing a MOD operation on a Delphi variable, thus the above code will cause an error.

Many of the inline assembler expressions require constants to assemble correctly. Change the offending statement to have a assemble-time constant.

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