Echo value of offset

[Rockphorr]

How to do it ?

See the code and results in attachment.

Regards, Rockphorr.

[NoCforMe]

I believe you may have invoked the Macro Master's name.
JJ should be along shortly.

[HSE]

There is no variable declaration, then offset will not work (like error say).

For example:

Code Select Expand

.data
      Mysome Some {0,0,0,0}

[Rockphorr]

There is no variable declaration, then offset will not work (like error say).

For example:

Code Select Expand

.data
      Mysome Some {0,0,0,0}

Post complete working code please. May be it is impossible to write code doing this.

[jj2007]

What's the problem? It seems to work:

Code Select Expand

*** Assemble, link and run VALUE_ASM ***

*** Assemble using UAsm64  ***
@V_size    =    8h
@V_ofs    =    4h
Tmp_File.asm(31) : Error A2099: END directive required at end of file

Post complete working code please.

Normally, I agree. But here OP just wants the echos - and they work.

The CodeSize macro works in a similar fashion.

[HSE]

Post complete working code please. May be it is impossible to write code doing this.

Just paste that 2 lines before .code

[Rockphorr]

Code Select Expand

;=======[ STRUCTURE ]===============
Some\
STRUC
Some_Data_0\
BYTE ?
Some_Data_1\
BYTE ?
Some_Data_2\
WORD ?
Some_Method\
DWORD ?
Some\
ENDS


;======[ MACRO ]====================
@Value MACRO name:req, expression:req
 .RADIX 10h
 %ECHO @CatStr (<name>,< = >,%expression,<h>)
 .RADIX 0Ah
  ENDM

.386
.MODEL FLAT


.DATA
      Mysome Some {0,0,0,0}


.CODE


@Value @V_size,Size(Some)

@Value @V_ofs,OFFSET( (Some PTR[0]).Some_Method )



results:

Microsoft (R) Macro Assembler Version 6.14.8444
Copyright (C) Microsoft Corp 1981-1997.  All rights reserved.
 Assembling: value.asm
@V_size =       8h
value.asm(37) : error A2027: operand must be a memory expression
 @CatStr(1): Macro Called From
  @Value(2): Macro Called From
   value.asm(37): Main Line Code
@V_ofs  =       0h
value.asm(37) : error A2088: END directive required at end of file

[Rockphorr]

Code Select Expand

*** Assemble, link and run VALUE_ASM ***

*** Assemble using UAsm64  ***


Post complete working code please.

Normally, I agree. But here OP just wants the echos - and they work.

The CodeSize macro works in a similar fashion.

I use ml of masm32 from masm32.com instead your UAsm64

[HSE]

  it's a lot more simple that your idea:

Code Select Expand

;=======[ STRUCTURE ]===============
Some\
STRUC
Some_Data_0\
BYTE ?
Some_Data_1\
BYTE ?
Some_Data_2\
WORD ?
Some_Method\
DWORD ?
Some\
ENDS


;======[ MACRO ]====================
@Value MACRO name:req, expression:req
 .RADIX 10h
 %ECHO @CatStr (<name>,< = >,%expression,<h>)
 .RADIX 0Ah
  ENDM

.386
.MODEL FLAT

.code

@Value @V_size,Size(Some)
@Value @V_ofs,Some.Some_Method

end

[Rockphorr]

it's a lot more simple that your idea:

Code Select Expand

;=======[ STRUCTURE ]===============
Some\
STRUC
Some_Data_0\
BYTE ?
Some_Data_1\
BYTE ?
Some_Data_2\
WORD ?
Some_Method\
DWORD ?
Some\
ENDS


;======[ MACRO ]====================
@Value MACRO name:req, expression:req
 .RADIX 10h
 %ECHO @CatStr (<name>,< = >,%expression,<h>)
 .RADIX 0Ah
  ENDM

.386
.MODEL FLAT

.code

@Value @V_size,Size(Some)
@Value @V_ofs,Some.Some_Method

end

ups, it was my fault,
Your code works fine!
Thanx!!!

[NoCforMe]

Strange; I got it to assemble OK (but not link):

Code Select Expand

Microsoft (R) Macro Assembler Version 6.14.8444
Copyright (C) Microsoft Corp 1981-1997.  All rights reserved.

 Assembling: value.asm
@V_size =       8h
@V_ofs  =       4h
Microsoft (R) Incremental Linker Version 5.12.8078
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

LINK : error LNK2001: unresolved external symbol _WinMainCRTStartup
value.exe : fatal error LNK1120: 1 unresolved externals

[jj2007]

I use ml of masm32 from masm32.com instead your UAsm64

UAsm is a Masm32 clone, 100% compatible. And at least a factor 3 faster.

[Rockphorr]

Strange; I got it to assemble OK (but not link):

Code Select Expand

Microsoft (R) Macro Assembler Version 6.14.8444
Copyright (C) Microsoft Corp 1981-1997.  All rights reserved.

 Assembling: value.asm
@V_size =       8h
@V_ofs  =       4h
Microsoft (R) Incremental Linker Version 5.12.8078
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

LINK : error LNK2001: unresolved external symbol _WinMainCRTStartup
value.exe : fatal error LNK1120: 1 unresolved externals

Couse this obj has no code inside. Link did not find any label of code.

[NoCforMe]

Yes, exactly.
I didn't mean to bring this up to further muddy the waters.
So did you get everything to work OK?

[zedd151]

So did you get everything to work OK?

Maybe I am a little slow, but I don't understand what this piece of code is actually supposed to do... 
As is, it seems not very useful as a program since the object file has no code. Am I missing some key point to this?

Maybe it would be more useful to show an example of how/where it would be used.