add latest notesdev

1 files changed, 15 insertions, 0 deletions

diff --git a/spec/notes.txt b/spec/notes.txt
index fdfe01d..11837a5 100644
--- a/spec/notes.txt
+++ b/spec/notes.txt
@@ -340,6 +340,21 @@
 	+ Other ways to reduce reg file area / usage are targeted more torwards ASICs than FPGAs
 
 
+* Instruction Buffer:
+	+ Goal: just from fetching I-Buf can execute the instruction
+	+ What is needed to put in I-Buf and execute an instruction?
+		> instruction(s) itself
+		> active mask of the split
+		> are instructions ready to be issued?
+		  need: scoreboard is fine (dependency mask)
+		  NOTE: operands will be collected later for execution, so do not need to worry about them
+	+ Need in the I-Buf the following fields to execute the instruction:
+		> valid bit
+		> warp id => can access warp split table
+		> split id => can access which split to execute (active mask)
+		> instructions for the warp split to execute
+
+
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