[solved] jmp/struct (doesn't compile, why ?)

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ouadji

Joined: 24 Dec 2008
Posts: 1081
Location: Belgium

ouadji 02 Oct 2010, 20:44

Code:

does compile
------------

include 'win32a.inc'

jmp  toto

struct Z
   v dd ?
ends

toto:

Code:

does not compile <<<<----------  why ??
----------------

include 'win32a.inc'

jmp  .toto

struct Z
   v dd ?
ends

.toto:

thank you all Razz

_________________
I am not young enough to know everything (Oscar Wilde)-

Last edited by ouadji on 03 Oct 2010, 10:05; edited 2 times in total

02 Oct 2010, 20:44

MHajduk

Joined: 30 Mar 2006
Posts: 6115
Location: Poland

MHajduk 02 Oct 2010, 21:28

It's a well known issue to me. Wink

It refers to the scopes of the namespaces: in the second code example 'jmp .toto' instruction and '.toto:' label belong to the two separate namespaces because you declare structure with a "global" name 'Z' which separates them. Use '.Z' instead.

This code compiles OK:

Code:

include 'win32a.inc' 

jmp  .toto 

struct .Z 
   v dd ? 
ends 

.toto:

Last edited by MHajduk on 02 Oct 2010, 21:29; edited 1 time in total

02 Oct 2010, 21:28

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8358
Location: Kraków, Poland

Tomasz Grysztar 02 Oct 2010, 21:29

"struct" macro defines some labels, here for example "Z". And labels starting with dot are local to the most recent global label (the one not starting with dot). See manual, section 1.2.3, near the end.

02 Oct 2010, 21:29

MHajduk

Joined: 30 Mar 2006
Posts: 6115
Location: Poland

MHajduk 02 Oct 2010, 21:33

As you can see TG confirmed what I wrote above. Wink

02 Oct 2010, 21:33

ouadji

Joined: 24 Dec 2008
Posts: 1081
Location: Belgium

ouadji 02 Oct 2010, 22:14

Code:

indeed this does compile with ".Z"
-----------------------------------

jmp  .toto

struct .Z 
   v dd ? 
ends 

.toto:

ok, thank you MHajduk, thank you Tomasz. Razz

i'm working hard on next wink, many changes !
management of data_labels (label db/dd/ rb/rd .....)
management of "struct" ... and "macro"<-- for bitRAKE Wink

Data_label management is complex, for example,
to mention just one of many problems ...
locals / x dd ? / endl
struct/ x dd ?/ends
... Razz

Quote:

The label whose name begins with dot is treated as local label, and its name
is attached to the name of last global label (with name beginning with
anything but dot) to make the full name of this label. So you can use the
short name (beginning with dot) of this label anywhere before the next global
label is defined, and in the other places you have to use the full name. Label
beginning with two dots are the exception - they are like global, but they
don't become the new prefix for local labels.

Tomasz, i know that by heart
I dream of that even during the night ! Wink

_________________
I am not young enough to know everything (Oscar Wilde)-

02 Oct 2010, 22:14

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