diff --git a/NOTES.md b/NOTES.md
new file mode 100644
index 0000000..6f7017b
--- /dev/null
+++ b/NOTES.md
@@ -0,0 +1,21 @@
+## Use more than 1 CPU
+
+With only 1 CPU some thigs are soo slow to work. For example, the ttyS0 device
+doesn't arrive on time and the login fails. Or the SSH daemon doesn't start
+until the third try. With -smp 32 seems to work ok.
+
+## Compressed instructions
+
+To see if a binary has compressed instructions or not, you can use objdump:
+
+    hut% nix shell -vL nixpkgs#pkgsCross.riscv64.bintools
+    hut% objdump -M no-aliases -D result/u-boot | grep 'c\.' | head -5
+        80200000:   822a                    c.mv    tp,a0
+        80200002:   84ae                    c.mv    s1,a1
+        80200018:   52c1                    c.li    t0,-16
+        8020001e:   0356                    c.slli  t1,0x15
+        80200024:   850a                    c.mv    a0,sp
+
+To dump a ROM without the ELF header:
+
+    hut% objdump -b binary -m riscv:rv64 -M no-aliases -D result/u-boot.bin
diff --git a/README.md b/README.md
index 833f66c..7301ffc 100644
--- a/README.md
+++ b/README.md
@@ -11,25 +11,3 @@ Then run the boot script:
 ```
 $ ./boot.sh
 ```
-
-## Use more than 1 CPU
-
-With only 1 CPU some thigs are soo slow to work. For example, the ttyS0 device
-doesn't arrive on time and the login fails. Or the SSH daemon doesn't start
-until the third try. With -smp 32 seems to work ok.
-
-## Compressed instructions
-
-To see if a binary has compressed instructions or not, you can use objdump:
-
-    hut% nix shell -vL nixpkgs#pkgsCross.riscv64.bintools
-    hut% objdump -M no-aliases -D result/u-boot | grep 'c\.' | head -5
-        80200000:   822a                    c.mv    tp,a0
-        80200002:   84ae                    c.mv    s1,a1
-        80200018:   52c1                    c.li    t0,-16
-        8020001e:   0356                    c.slli  t1,0x15
-        80200024:   850a                    c.mv    a0,sp
-
-To dump a ROM without the ELF header:
-
-    hut% objdump -b binary -m riscv:rv64 -M no-aliases -D result/u-boot.bin