From 7cb4fe0944b839f28dfd96a88a772cd6a8b58019 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Thu, 2 Nov 2023 17:16:25 -0600
Subject: reorganized project files (part 1) (just moved files, didn't change
 the contents yet,  and nothing will work without updating #includes and build
 scripts and stuff)

---
 fsm/random.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 fsm/random.c

(limited to 'fsm/random.c')

diff --git a/fsm/random.c b/fsm/random.c
new file mode 100644
index 0000000..91fd929
--- /dev/null
+++ b/fsm/random.c
@@ -0,0 +1,16 @@
+// fsm-random.c: Random number generator for SpaghettiMonster.
+// Copyright (C) 2017-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#ifdef USE_PSEUDO_RAND
+uint8_t pseudo_rand() {
+    static uint16_t offset = 1024;
+    // loop from 1024 to 4095
+    offset = ((offset + 1) & 0x0fff) | 0x0400;
+    pseudo_rand_seed += 0b01010101;  // 85
+    return pgm_read_byte(offset) + pseudo_rand_seed;
+}
+#endif
+
-- 
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