Subj : Re: Inline Assembler bug with structs of certain size
To   : borland.public.cpp.borlandcpp
From : Bob Gonder
Date : Thu Dec 02 2004 03:53 pm

Ed Mulroy [TeamB] wrote:

>When I built to compile via assembly it seemed to
>handle the code generation well.  When I built without
>that, I saw the same thing you reported, the second
>function's assembly mov instruction was not generated.

With 3.1, it wouldn't compile at all (unless compile-to-asm)
It just doesn't like arrays of that size. added an additional char[1]
to struct1, and it complained.

>
>F:\Projects\lookat\q408>ques408
>length of asm_test1 = 8
>&TestStruct1 = 0b70, via asm = 1441
>length of asm_test2 = 5
>&TestStruct2 = 594a, via asm = 1441

This line is wrong for you:

>> printf("&TestStruct1 = %04x, via asm = %04x\n", &TestStruct1, asm_test1());

Try
>  printf("&TestStruct1 = %4p, via asm = %p\n", &TestStruct1, asm_test1());

At least, on my machine, it pushes ds:address for &TestStruct1 and
cs:value for asm_test1().

The %p properly uses the 16bit address instead of the original 4 and 4
(ignoring the second parameter)

.