From 3489015ff245861355f73674f79801279d95ea39 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Fri, 3 Nov 2023 11:05:59 -0600
Subject: renamed tk*.h to arch/*.h or fsm/*.h (part 1) to get them out of the
 root dir, and to start cleaning up mcu/arch code

---
 arch/delay.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 arch/delay.h

(limited to 'arch/delay.h')

diff --git a/arch/delay.h b/arch/delay.h
new file mode 100644
index 0000000..502e6ab
--- /dev/null
+++ b/arch/delay.h
@@ -0,0 +1,58 @@
+// tk-delay.h: Smaller, more flexible _delay_ms() functions.
+// Copyright (C) 2015-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#ifdef OWN_DELAY
+#include "tk-attiny.h"
+#include <util/delay_basic.h>
+#ifdef USE_DELAY_MS
+// Having own _delay_ms() saves some bytes AND adds possibility to use variables as input
+#define delay_ms _delay_ms
+void _delay_ms(uint16_t n)
+{
+    // TODO: make this take tenths of a ms instead of ms,
+    // for more precise timing?
+    //#ifdef USE_FINE_DELAY
+    //if (n==0) { _delay_loop_2(BOGOMIPS/3); }
+    //else {
+    //    while(n-- > 0) _delay_loop_2(BOGOMIPS);
+    //}
+    //#else
+    while(n-- > 0) _delay_loop_2(BOGOMIPS);
+    //#endif
+}
+#endif
+#if defined(USE_FINE_DELAY) || defined(USE_DELAY_ZERO)
+#define delay_zero _delay_zero
+void _delay_zero() {
+    //_delay_loop_2((BOGOMIPS/3) & 0xff00);
+    _delay_loop_2(DELAY_ZERO_TIME);
+}
+#endif
+#ifdef USE_DELAY_4MS
+#ifndef delay_4ms
+#define delay_4ms _delay_4ms
+void _delay_4ms(uint8_t n)  // because it saves a bit of ROM space to do it this way
+{
+    while(n-- > 0) _delay_loop_2(BOGOMIPS*4);
+}
+#endif
+#endif
+#ifdef USE_DELAY_S
+#define delay_s _delay_s
+void _delay_s()  // because it saves a bit of ROM space to do it this way
+{
+  #ifdef USE_DELAY_4MS
+    _delay_4ms(250);
+  #else
+    #ifdef USE_DELAY_MS
+    _delay_ms(1000);
+    #endif
+  #endif
+}
+#endif
+#else
+#include <util/delay.h>
+#endif
+
-- 
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