From b3c0548ed3cdb31c47d1a9e06c446c0804d6e1b6 Mon Sep 17 00:00:00 2001 From: druotoni <89318351+druotoni@users.noreply.github.com> Date: Thu, 13 Jan 2022 20:00:35 +0100 Subject: [Keymap] Lily58 : HELL0 NAVI. Interface (#15469) Co-authored-by: Drashna Jaelre Co-authored-by: Joel Challis --- keyboards/lily58/keymaps/druotoni/fast_random.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 keyboards/lily58/keymaps/druotoni/fast_random.c (limited to 'keyboards/lily58/keymaps/druotoni/fast_random.c') diff --git a/keyboards/lily58/keymaps/druotoni/fast_random.c b/keyboards/lily58/keymaps/druotoni/fast_random.c new file mode 100644 index 0000000000..3028b57ac6 --- /dev/null +++ b/keyboards/lily58/keymaps/druotoni/fast_random.c @@ -0,0 +1,17 @@ +// Copyright 2021 Nicolas Druoton (druotoni) +// SPDX-License-Identifier: GPL-2.0-or-later +#include "fast_random.h" + +// seed for random +static unsigned long g_seed = 0; + +int fastrand(void) { + // todo : try with random16(); + g_seed = (214013 * g_seed + 2531011); + return (g_seed >> 16) & 0x7FFF; +} + +unsigned long fastrand_long(void) { + g_seed = (214013 * g_seed + 2531011); + return g_seed; +} -- cgit v1.2.3