diff options
Diffstat (limited to 'zephyr/shim/include/fpu.h')
| -rw-r--r-- | zephyr/shim/include/fpu.h | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/zephyr/shim/include/fpu.h b/zephyr/shim/include/fpu.h deleted file mode 100644 index da36f50492..0000000000 --- a/zephyr/shim/include/fpu.h +++ /dev/null @@ -1,56 +0,0 @@ -/* Copyright 2021 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#ifndef __CROS_EC_FPU_H -#define __CROS_EC_FPU_H - -/* - * These functions are available in newlib but we are are using Zephyr's - * minimal library at present. - * - * This file is not called math.h to avoid a conflict with the toolchain's - * built-in version. - * - * This code is taken from core/cortex-m/include/fpu.h - */ - -#ifdef CONFIG_PLATFORM_EC_FPU - -/* Implementation for Cortex-M */ -#ifdef CONFIG_CPU_CORTEX_M -static inline float sqrtf(float v) -{ - float root; - - /* Use the CPU instruction */ - __asm__ volatile( - "fsqrts %0, %1" - : "=w" (root) - : "w" (v) - ); - - return root; -} - -static inline float fabsf(float v) -{ - float root; - - /* Use the CPU instruction */ - __asm__ volatile( - "fabss %0, %1" - : "=w" (root) - : "w" (v) - ); - - return root; -} -#else -#error "Unsupported core: please add an implementation" -#endif /* CONFIG_CPU_CORTEX_M */ - -#endif /* CONFIG_PLATFORM_EC_FPU */ - -#endif /* __CROS_EC_MATH_H */ |