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-rw-r--r--src/video_core/engines/maxwell_3d.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp
index f2cffd8ef..5f7738e7b 100644
--- a/src/video_core/engines/maxwell_3d.cpp
+++ b/src/video_core/engines/maxwell_3d.cpp
@@ -425,7 +425,8 @@ void Maxwell3D::ProcessMacroBind(u32 data) {
void Maxwell3D::ProcessFirmwareCall4() {
LOG_WARNING(HW_GPU, "(STUBBED) called");
- // For details refer to #2501
+ // Firmware call 4 is a blob that changes some registers depending on its parameters.
+ // These registers don't affect emulation and so are stubbed by setting 0xd00 to 1.
regs.reg_array[0xd00] = 1;
}