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flat assembler > Main > Defining entries of partial data size in structures

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zhak



Joined: 12 Apr 2005
Posts: 489
Location: Belarus
If a C header defines a structure as
Code:
struct MY { UINT32 Length:24; UINT32 Type:8; }


meaning the upper three bytes of DWORD are Length, and the low byte of a DWORD is type, how would you implement such struct in fasm?

I thought it could be
Code:
struct MY Length rb 3 Type rb 1 ends

Or maybe there's a more elegant way?
Post 31 Oct 2016, 23:44
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 15870
Location: 162173 Ryugu
I don't know what you consider "elegant". You might also want to place a dword covering alias:
Code:
struct MY union value rd 1 struct Length rb 3 Type rb 1 ends ends ends
Post 31 Oct 2016, 23:55
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