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if the core says it's exposing SYSTEM_RAM, give it the benefit of the doubt

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This commit is contained in:
Jamiras 2020-02-05 18:16:34 -07:00
parent eb58b8c0b5
commit 446e44cb09
1 changed files with 26 additions and 6 deletions
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32
cheevos-new/cheevos.c
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@ -411,12 +411,32 @@ static int rcheevos_parse(const char* json)
*/
if (!rcheevos_patch_address(0, rcheevos_locals.patchdata.console_id))
{
/* Special case: the sameboy core exposes the RAM at $8000, but not the ROM at $0000. NES and
* Gameboy achievements do attempt to map the entire bus, and it's unlikely that an achievement
* will reference the ROM data, so if the RAM is still present, allow the core to load. If any
* achievements do reference the ROM data, they'll be marked "Unsupported" individually.
*/
if (!rcheevos_patch_address(0x8000, rcheevos_locals.patchdata.console_id))
int delay_judgment = 0;
rarch_system_info_t* system = runloop_get_system_info();
if (system->mmaps.num_descriptors == 0)
{
/* Special case: the mupen64plus-nx core doesn't initialize the RAM immediately. To avoid a race
* condition - if the core says there's SYSTEM_RAM, but the pointer is NULL, proceed. If the memory
* isn't exposed when the achievements start processing, they'll be marked "Unsupported" individually.
*/
retro_ctx_memory_info_t meminfo;
meminfo.id = RETRO_MEMORY_SYSTEM_RAM;
core_get_memory(&meminfo);
delay_judgment |= (meminfo.size > 0);
}
else
{
/* Special case: the sameboy core exposes the RAM at $8000, but not the ROM at $0000. NES and
* Gameboy achievements do attempt to map the entire bus, and it's unlikely that an achievement
* will reference the ROM data, so if the RAM is still present, allow the core to load. If any
* achievements do reference the ROM data, they'll be marked "Unsupported" individually.
*/
delay_judgment |= (rcheevos_patch_address(0x8000, rcheevos_locals.patchdata.console_id) != NULL);
}
if (!delay_judgment)
{
CHEEVOS_ERR(RCHEEVOS_TAG "No memory exposed by core\n");