Delphi Embedded Assembly [23]-Loop

Source: Internet
Author: User
// Calculate function fun (x, N: integer): integer; ASM // mov eax, X {because eax first obtains the first parameter, this statement can be omitted} mov ECx. n {ECx is a counting register that records the number of cycles. The value of ECx decreases by 1} sub ECx, 1 @ lable1: add eax, eax {internal labels must use @ prefix; you can also use Delphi tag} loop @ lable1 {loop to tag execution} end; // Test Procedure tform1.button1click (Sender: tobject); begin showmessage (inttostr (fun (1024); {} end;


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