Little Help Asm

[a.sabato]

hi all , i intended purchase powerbasic, but i need a very great information first.
With powerbasic is possible to pass in ASM code this instruction:

Example in C++ ASM
----------------------------------------------------
_asm
{
lea eax, NewFunPoint
mov ebx, FunEntry
sub eax, ebx
sub eax, 5
move dword ptr [NewFunCode+1],eax
}

NewFunPoint:
-------------------------------------------------------
NewFunCode as an array of byte (0 to 5)

the asm instruction for point direct to array of byte for fill
in powerbasic this work? are equal ? or not

i have try with registered powerbasic of a my friend and retrieve an error:
"Asm Sintax Error" with powerbasic

i have write this code with powerbasic for test:
------------------------------------------------------
LOCAL NewFunCode(0 TO 5) AS BYTE

!lea eax, NewFunPoint
!mov ebx, FunEntry
!sub eax, ebx
!sub eax, 5
!mov dword ptr [NewFunCode+1], eax <-- these instruction error "Asm sintax error"

NewFunPoint:
-----------------------------------------------------------------
there are a method for equivalent solution in asm for powerbasic for manipulate array pointer?

please help i need to purchase powerbasic.

[Chris Holbrook]

please help i need to purchase powerbasic.

No problem, just assign the address of the array to a dword pointer and load that in the register instead. But what on earth are you trying to do?

[John Gleason]

i have try with registered powerbasic of a my friend and retrieve an error:
"Asm Sintax Error" with powerbasic

i have write this code with powerbasic for test:
------------------------------------------------------

Now, how about this?

LOCAL NewFunCode(0 TO 5) AS BYTE
LOCAL nfcPtr AS LONG
   nfcPtr = VARPTR(NewFunCode(0))
 
  !lea eax, NewFunPoint
  !mov ecx, nfcPtr  
  !mov ebx, FunEntry
  !sub eax, ebx
  !sub eax, 5
  !mov [ecx+1], eax    ;now I think we have it

[Bob Zale]

Antonio,

You can accomplish the goal of your code very easily with PowerBASIC, but the syntax as you entered it, is not a valid opcode for an Intel Pentium CPU.

Please ask your friend (the one who owns a lawful copy of PowerBASIC) to contact PB Technical Support, and they'll provide him with detailed information at no cost. However, since PowerBASIC is licensed to just one programmer, we cannot sanction your use of his compiler. That would be a serious violation of our copyright and software license agreement.

Since you said " please help i need to purchase powerbasic", I think the best solution would be for you to purchase the product right away. Then we can help you with all of your questions.

Bob Zale
PowerBASIC Inc.

[Michael Mattias]

Is it just me to whom it looks as though the best way to write that function in PB would actually be something like an inline ARRAY INSERT on a byte array?

(Someone who knows assembly language could figure it out).

Just because C++ does not have ARRAY INSERT doesn't mean the PB compiler doesn't.


MCM

[Chris Holbrook]

How did Bob know that a.sabato is Antonio? Spooky.

[Brice Manuel]

Bob has the Power...

[Rodney Hicks]

Because he gave his name when he registered for the forums?

Rod

PS Or what Brice said.

[Chris Holbrook]

firstname, lastname?

[Cliff Nichols]

aka...around here everyone is willing to help (hell even bend over backwards if needed) but there is a line where user MUST take the plunge, or they will never get wet