Re: 16 bit exe?

"Dave Turner" <not@dave> wrote in message
news:4402a24d$1@xxxxxxxxxxxxxxxxxxx
Does anyone here know the formula for calculating the size of a 16 bit exe
based on IMAGE_DOS_HEADER alone?

I thought it was something like this but it's not quite right ...

BytesOnLastPage = IMAGE_DOS_HEADER.e_cblp
Pages = IMAGE_DOS_HEADER.e_cp
Size = (Pages * 512) + BytesOnLastPage

Almost -- e_cblp *is* the number of bytes on the last page. Yep -- the one
mentioned in e_cp!
So the size = (Pages-1)*512+BytesOnLastPage.
Cor! I knew that but to confirm I hadda search my legacy code directory for
that! (dirtasm.c, oct 3 1997)

[Jongware]


.

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