From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Tue, 25 May 2021 10:29:16 +0000 (+0100)
Subject: more notes on pypowersim
X-Git-Tag: xlen-bcd~557
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b50f37b30fb9343d982a86438e747e7e191b6af7;p=openpower-isa.git

more notes on pypowersim
---

diff --git a/src/openpower/decoder/isa/pypowersim.py b/src/openpower/decoder/isa/pypowersim.py
index e61e7d7f..7bb61f96 100644
--- a/src/openpower/decoder/isa/pypowersim.py
+++ b/src/openpower/decoder/isa/pypowersim.py
@@ -161,7 +161,14 @@ def help():
     print ("-l --load=     filename:address to load binary into memory")
     print ("-d --dump=     filename:address:len to binary save from memory")
     print ("-h --help      prints this message")
+    print ("notes:")
     print ("load and dump may be given multiple times")
+    print ("load and dump must be 8-byte aligned sizes")
+    print ("loading SPRs accepts SPR names (e.g. LR, CTR, SRR0)")
+    print ("numbers may be integer, binary (0bNNN) or hex (0xMMM) but not FP")
+    print ("running ELF binaries: load SPRs, LR set to 0xffffffffffffffff")
+    print ("TODO: dump registers")
+    print ("TODO: load/dump PC, MSR, CR")
     exit(-1)