On Sunday, 25 August 2019 at 13:24:57 UTC, lili wrote:
On Saturday, 24 August 2019 at 12:55:57 UTC, a11e99z wrote:
On Saturday, 24 August 2019 at 12:16:34 UTC, lili wrote:
On Saturday, 24 August 2019 at 12:09:19 UTC, a11e99z wrote:
On Saturday, 24 August 2019 at 11:53:01 UTC, lili wrote:
 [...]

resb 8
just reserving 8 bytes not initializing it.
probably u compare some garbage. sometimes it equals, sometimes not.
no?

I write wrong, not if (_vga_x == _vga_y) but if (&_vga_x == &_vga_y)

try to do next:
add funtion in asm that returns real addresses to vga_x,y
extern(C) void asmVgas( int** px, int** py)
call it
int *px, *py;
asmVgas( &px, &py);
writefln( "%s=%s,%s=%s",px, &_vga_x,py, &_vga_y);
and see result

I followed your suggest, call asm_fn in d function. it return address not 0 but is a correct
address same as the var address show in link map file.
when a try define a __shared int xx, the &xx also 0.
after linked all variables address is 0 that in .bss segment.
do you know why occur this?

[global asm_fn]
asm_fn:
        mov rax, p2_table
        ret

no idea.

u can to define _vga_x,_vga_y in D code and export it to asm (vice versa than now).
see result again.

in case still not working:
make very simple app with global vars: 2 D-files OR 1 D-file and 1 asm-file
(maybe its not working even for D+D files).
try to get same bug from compiler/linker.
fill the issue and attach both files as sample.
add point (for case D+asm) "how to compile asm file for linking with D" as u did.
then wait and hope.


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