From aff782c4293e0c471505743575a1a0683a7ed096 Mon Sep 17 00:00:00 2001
From: Kartik Agaram <vc@akkartik.com>
Date: Sun, 6 Jan 2019 12:51:49 -0800
Subject: 4911

---
 subx/066allocate.subx | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'subx/066allocate.subx')

diff --git a/subx/066allocate.subx b/subx/066allocate.subx
index a4ea687c..37b01d21 100644
--- a/subx/066allocate.subx
+++ b/subx/066allocate.subx
@@ -183,6 +183,12 @@ allocate-region:  # ad : (address allocation-descriptor), n : int -> new-ad : (a
     5d/pop-to-EBP
     c3/return
 
+# We could create a more general '$abort' jump target, but then we'd need to do
+# a conditional jump followed by loading the error message and an unconditional
+# jump. Or we'd need to unconditionally load the error message before a
+# conditional jump, even if it's unused the vast majority of the time. This way
+# we bloat a potentially cold segment in RAM so we can abort with a single
+# instruction.
 $allocate-region:abort:
     # . _write(2/stderr, error)
     # . . push args
-- 
cgit 1.4.1-2-gfad0