record conversation snippet

diff --git a/3d_gpu/microarchitecture.mdwn b/3d_gpu/microarchitecture.mdwn
index 25fe2d135691725ec9a5598aaec50b86ccf8ecef..07576242a0813388fc201b299287ed58cb1cf4fd 100644 (file)
--- a/3d_gpu/microarchitecture.mdwn
+++ b/3d_gpu/microarchitecture.mdwn
@@ -182,6 +182,14 @@ Exceptions
 * Exceptions are handled by not recognising the exception until
   instruction that caused it is ready to commit in ROB (reaches head
   of ROB)
+
+Reorder Buffer
+
+* Results of an instruction become visible externally when it leaves
+  the ROB
+    - Registers updated
+    - Memory updated
+
 # References
 
 * <https://en.wikipedia.org/wiki/Tomasulo_algorithm>