From 848e84b0948e3cf60cd118e3d2f507f20920e06c Mon Sep 17 00:00:00 2001
From: s-ol <s+removethis@s-ol.nu>
Date: Thu, 27 May 2021 11:54:05 +0200
Subject: fix jalr immediate slice, update example stage results

---
 ex.pack | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'ex.pack')

diff --git a/ex.pack b/ex.pack
index 2bef2a1..5a6cdf4 100644
--- a/ex.pack
+++ b/ex.pack
@@ -1,9 +1,23 @@
 == code 0x80000000
+# repeatedly print "Hi\n"
+# main:
+# load 0x10010000 (UART0) into t0
 b7 02 01 10
+# store 0x48 (H) in UART0+0
 13 03 80 04
 23 a0 62 00
+# store 0x69 (i) in UART0+0
 13 03 90 06
 23 a0 62 00
+# store 0x0a (\n) in UART0+0
 13 03 a0 00
 23 a0 62 00
-6f f0 5f fe
+# jump back up to the top (three versions):
+# a) jal 21bit relative (with 0th bit forced to 0)
+#   6f/jal 0/rd/x0 main/off21
+# b) auipc+jalr 32bit relative (note label offset)
+97 f3 ff ff
+67 80 43 fe
+# c) lui+jalr 32bit absolute
+#   37/lui 7/rd/t2 main/imm32
+#   67/jalr 0/subop 0/rd/x0 7/rs/t2 main/imm32
-- 
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