Delphi Error – E2112 Invalid register combination

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Delphi Compiler Error

E2112 Invalid register combination

Reason for the Error & Solution

You have specified an illegal combination of registers in a inline assembler statement. Please refer to an assembly language guide for more information on addressing modes allowed on the Intel 80×86 family. 

program Produce;

  procedure AssemblerExample;
  asm
    mov eax, [ecx + esp * 4]
  end;

begin
end.

The right operand specified in this mov instruction is illegal. 

program Solve;

  procedure AssemblerExample;
  asm
    mov eax, [ecx + ebx * 4]
  end;

begin
end.

The addressing mode specified by the right operand of this mov instruction is allowed.

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