NASM - The Netwide Assembler
NASM Forum => Programming with NASM => Topic started by: wyvern666 on January 11, 2012, 06:11:19 PM
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Hi all.
I understand the use of "\" when writing code. But if this symbol is used after a ";comment" the next code line will be ignored by NASM. I dont know if this can be considered a bug or not, or if have been reported already in the past. It isn't an important thing, but i just wanted inform about it as i think after the ";" that symbol could be ignored... or maybe not?.
Anyway, i found that situation with this commented code:
...
someRoutine:
PUSH ebp ;save calling stack frame \
MOV ebp, esp ;new stack frame over caller`s stack | function prologue
SUB esp, 8 ;8 bytes for local variables /
...
In that case the "MOV" instruction will be ignored.
Thanks.
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Yeah... the '\' character is treated as a line-continuation character if it appears last in a line. Nasm needs to "get" a line from the file before it can "parse" the line to see if there's a comment in it, so it isn't possible to ignore it after ';'. This is intentional behavior, although it's inconvenient if you're trying to do "ascii art" in a comment. If you don't want '\' to be treated as a line-continuation character, put something after it. Even a space will work, although that might be confusing. This broke some existing code when it was introduced, which we try to avoid, but we really needed a line-continuation character...
Best,
Frank
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Yes, i figured out that with even a space after the "\" all will be ok ;D. Thanks for your answer Frank, as always.