diff --git a/GB_save_state_to_buffer.md b/GB_save_state_to_buffer.md
index a541d0a..7aa74e5 100644
--- a/GB_save_state_to_buffer.md
+++ b/GB_save_state_to_buffer.md
@@ -6,8 +6,17 @@ In `save_state.h`
 
 ## Description
 
-TBD
+Saves a snapshot of the current emulation state of the emulator instance into `buffer`. The size of the buffer must be the return value of [[GB_get_save_state_size]].
 
 ## Thread Safety
 
 `GB_save_state_to_buffer` must not be called if the instance is being run in any thread, including the current one (via a callback).
+
+## Notes
+
+SameBoy follows the [BESS](https://github.com/LIJI32/SameBoy/blob/master/BESS.md) specification, and generates save states compatible with other BESS-compliant emulators.
+
+## See Also
+
+* [[GB_save_state]]
+* [[GB_load_state_from_buffer]]
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