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fixed minor flaw if a system has both compatible and parent sets. no whatsnew.

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I am not sure if nested compatibility are allowed by MESS (I'm going to check it soonish), so for now I left the while loop in place even if it makes the logic not so plain...
This commit is contained in:
Fabio Priuli 2011-08-15 09:13:42 +00:00
parent 5d8889e3ae
commit 8eb3191be4
1 changed files with 9 additions and 5 deletions
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14
src/emu/hashfile.c
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@ -576,21 +576,25 @@ const char *hashfile_extrainfo(device_image_interface &image)
/* now read the hash file */
image.crc();
extra_info = NULL;
int compat, drv = driver_list::find(image.device().machine().system());
int drv = driver_list::find(image.device().machine().system());
int compat, open = drv;
do
{
rc = read_hash_config(image, driver_list::driver(drv).name);
rc = read_hash_config(image, driver_list::driver(open).name);
// first check if there are compatible systems
compat = driver_list::compatible_with(drv);
compat = driver_list::compatible_with(open);
// if so, try to open its hashfile
if (compat != -1)
drv = compat;
open = compat;
// otherwise, try with the parent
else
{
drv = driver_list::clone(drv);
open = drv;
}
}
// if no extrainfo has been found but we can try a compatible or a parent set, go back
while (rc == NULL && drv != -1);
while (rc == NULL && open != -1);
return rc;
}