Recent

Author Topic: Lazarus doesn't understand TYPE operator in assembler code  (Read 279 times)

andy-cat

  • New member
  • *
  • Posts: 7
Lazarus doesn't understand TYPE operator in assembler code
« on: December 02, 2022, 07:47:12 am »
Hello, Lazarus doesn't understand TYPE operator in assembler code:

    cmp     EAX, dword ptr [EDI + ECX * TYPE Int64 + $04]   


xxxxxxx.pas(1704,41) Error: Invalid reference syntax

Does anyone know how to solve this problem?

This is the working code from delphi.

Documentation:
4.3.4 TYPE Operator
The TYPE operator returns the size, in bytes, of a single element of a variable. For example, the
TYPE of a byte equals 1, the TYPE of a word equals 2, the TYPE of a doubleword is 4, and the
TYPE of a quadword is 8.


Red_prig

  • Jr. Member
  • **
  • Posts: 75
Re: Lazarus doesn't understand TYPE operator in assembler code
« Reply #1 on: December 02, 2022, 08:54:30 am »
SizeOf(Int64) worked?

andy-cat

  • New member
  • *
  • Posts: 7
Re: Lazarus doesn't understand TYPE operator in assembler code
« Reply #2 on: December 02, 2022, 09:26:13 am »
No, it does not work. Same error message.

jamie

  • Hero Member
  • *****
  • Posts: 5076
Re: Lazarus doesn't understand TYPE operator in assembler code
« Reply #3 on: December 02, 2022, 12:33:57 pm »
make a constant outside somewhere?

Const TYPE_INT64 = 8;

?
The only true wisdom is knowing you know nothing

ASerge

  • Hero Member
  • *****
  • Posts: 2049
Re: Lazarus doesn't understand TYPE operator in assembler code
« Reply #4 on: December 02, 2022, 09:59:39 pm »
From docs Intel syntax:
Quote
The Scaling value must be a value, and not an identifier to a symbol. Examples:
const myscale = 1; 
... 
mov al,byte ptr [esi+ebx*myscale] -- not allowed.
use:
mov al, byte ptr [esi+ebx*1]

 

TinyPortal © 2005-2018