WinXP 64 Bit driver with asm-file - Argument error by ml64

Hi,
trying to add asm-file with functions to my driver gives an error whenever
my asm-functions have arguments. When not ml64 gives no error.

ALIGN 16
Foo PROC xWORD, yWORD

MOV AX, 1
RET

Foo ENDP

ERROR: error A2070: invalid instruction operands

Foo PROC

MOV AX, 1
RET

Foo ENDP

NO ERROR!

Bye
Martin

Shall i use stack pointer instead? Or must i tell ml64 something that it
accepts arguments? Or not allowed in drivers?

Thx
Martin


--
Everyone is a newbie to something the first time.

"maddin123" wrote:
> Hi,
> trying to add asm-file with functions to my driver gives an error whenever
> my asm-functions have arguments. When not ml64 gives no error.
>
> ALIGN 16
> Foo PROC xWORD, yWORD
>
> MOV AX, 1
> RET
>
> Foo ENDP
>
> ERROR: error A2070: invalid instruction operands
>
> Foo PROC
>
> MOV AX, 1
> RET
>
> Foo ENDP
>
> NO ERROR!
>
> Bye
> Martin
>
> Shall i use stack pointer instead? Or must i tell ml64 something that it
> accepts arguments? Or not allowed in drivers?
>
> Thx
> Martin
>
>
> --
> Everyone is a newbie to something the first time.

Well... so goes...

1. In the "fancy" asm, RET is a pseudo instruction that generates function
return sequence (unwind the stack etc).
Turn detailed listing of generated code on and see which generated
instruction gives this error.

2. Write prototype of your function in C. Compile with assembly listing.
Use code created by C compiler as starting point for your assembly function.

0. The DDK compiler supports intrinsic functions that can save you from
using assembly. Many of them are defined in ntddk.h.

Good luck
--PA

Please use
`include macamd64.inc`
at the beginning of the file, and, later one,
read about LEAF_ENTRY function, and NESTED_ENTRY functions,
and about the exception unwind model of AMD64.
Once you are familiar with the expectations of the OS runtime environment
with regard of your code, you migh be able to write ASM code for AMD64.

--
This posting is provided "AS IS" with no warranties, and confers no rights.
Use of any included script samples are subject to the terms specified at
http://www.microsoft.com/info/cpyright.htm


"maddin123" <> wrote in message
newsF7BAA76-814C-4AEE-998F-...
> Hi,
> trying to add asm-file with functions to my driver gives an error whenever
> my asm-functions have arguments. When not ml64 gives no error.
>
> ALIGN 16
> Foo PROC xWORD, yWORD
>
> MOV AX, 1
> RET
>
> Foo ENDP
>
> ERROR: error A2070: invalid instruction operands
>
> Foo PROC
>
> MOV AX, 1
> RET
>
> Foo ENDP
>
> NO ERROR!
>
> Bye
> Martin
>
> Shall i use stack pointer instead? Or must i tell ml64 something that it
> accepts arguments? Or not allowed in drivers?
>
> Thx
> Martin
>
>
> --
> Everyone is a newbie to something the first time.