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.