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Emulate memory behavior of libSceGnmDriver initialization (#2807)

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* Emulate memory behavior of libSceGnmDriver _DT_INIT

Due to the unique way some games check for sceKernelAllocateDirectMemory failures, emulating this properly is necessary.

* Clang

* Fix address input for direct memory call

* Fix bug with DirectQueryAvailable

Missed this in my prior PR.

* DirectQueryAvailable fix

Fixes error cases to be more hardware accurate.
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Stephen Miller 2025-04-18 15:41:33 -05:00 • committed by GitHub
parent 23c616c647
commit 0feb2e7211
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4 changed files with 16 additions and 10 deletions
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src/core/memory.cpp
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@ -655,7 +655,7 @@ int MemoryManager::DirectQueryAvailable(PAddr search_start, PAddr search_end, si
if (dmem_area->second.GetEnd() > search_end) {
// We need to trim remaining_size to ignore addresses beyond search_end
remaining_size = remaining_size > (search_start - dmem_area->second.base)
remaining_size = remaining_size > (dmem_area->second.GetEnd() - search_end)
? remaining_size - (dmem_area->second.GetEnd() - search_end)
: 0;
}