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-rw-r--r--092write-int.subx3
1 files changed, 3 insertions, 0 deletions
diff --git a/092write-int.subx b/092write-int.subx
index 29ba8d2a..a084bb80 100644
--- a/092write-int.subx
+++ b/092write-int.subx
@@ -1,6 +1,9 @@
 # write-int: add a single int byte to a stream
 
 == code
+#   instruction                     effective address                                                   register    displacement    immediate
+# . op          subop               mod             rm32          base        index         scale       r32
+# . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes
 
 write-int:  # out : (address stream), n : int -> <void>
     # . prolog