Far procedures and labels

[Alfonso V]

I'm trying to do an interrupt handler and i need make a far procedure, something like this:

NuevaInt21h:
  STI
  PUSHF
  DB        9Ah
  OldInt21h DD 0
  CLI
  INC       BYTE [NumTeclas]
IRET                        

But "LDS       DX, OldInt21h" fails me. How can do it?

Thank you

[nobody]

> "LDS DX, OldInt21h" fails me. How can do it?

Try:

LDS DX, [OldInt21h]

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nmt

[Alfonso V]

I've done yet and fails too. It est, compiler gives me an error: "invalid combination of opcode and operands". Also i have put next code:
  MOV       AX, WORD [OldInt21h+2]
  MOV       DS, AX
  MOV       DX, WORD [OldInt21h]

With this, compiler goes well, but executable don't work properly because NTVDM gives an error.

Cheers

[Alfonso V]

I'm sorry

I have put it now right and goes right. I've put "LDS [OldInt21h]" instead "LDS DX, [OldInt21h]". An owful mistake, i'm sorry.