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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-lib
* Created on: 31 мар. 2020 г.
*
* lsp-dsp-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_DSP_ARCH_ARM_FPSCR_H_
#define PRIVATE_DSP_ARCH_ARM_FPSCR_H_
#ifndef PRIVATE_DSP_ARCH_ARM_IMPL
#error "This header should not be included directly"
#endif /* PRIVATE_DSP_ARCH_ARM_IMPL */
#define FPSCR_IOC (1 << 0) /* Invlid operation cumulative exception */
#define FPSCR_DZC (1 << 1) /* Division by zero cumulative exception */
#define FPSCR_OFC (1 << 2) /* Overflow cumulative exception */
#define FPSCR_UFC (1 << 3) /* Underflow cumulative exception */
#define FPSCR_IXC (1 << 4) /* Inexact cumulative exception */
#define FPSCR_IDC (1 << 7) /* Input decimal cumulative exception */
#define FPSCR_IOE (1 << 8) /* Invalid operation exception enable */
#define FPSCR_DZE (1 << 9) /* Division by zero exception enable */
#define FPSCR_OFE (1 << 10) /* Overflow exception enable */
#define FPSCR_UFE (1 << 11) /* Underflow exception enable */
#define FPSCR_IXE (1 << 12) /* Inexact exception enable */
#define FPSCR_IDE (1 << 15) /* Input Denormal exception enable */
#define FPSCR_LEN_MASK (7 << 16) /* Length, deprecated by ARM */
#define FPSCR_STRIDE_MASK (3 << 20) /* Stride, deprecated by ARM */
#define FPSCR_RMODE_MASK (3 << 22) /* Rounding mode mask */
#define FPSCR_RMODE_RN (0 << 22) /* Rounding to nearest */
#define FPSCR_RMODE_RP (1 << 22) /* Rounding towards plus infinity */
#define FPSCR_RMODE_RM (2 << 22) /* Rounding towards minus infinity */
#define FPSCR_RMODE_RZ (3 << 22) /* Rounding towards zero */
#define FPSCR_FZ (1 << 24) /* Flush-to-zero mode */
#define FPSCR_DN (1 << 25) /* Default NaN mode control */
#define FPSCR_AHP (1 << 26) /* Alternative half-precision control */
#define FPSCR_QC (1 << 27) /* Cumulative saturation */
#define FPSCR_V (1 << 28) /* Overflow condition flag */
#define FPSCR_C (1 << 29) /* Carry condition flag */
#define FPSCR_Z (1 << 30) /* Zero condition flag */
#define FPSCR_N (1 << 31) /* Negative condition flag */
namespace lsp
{
namespace arm
{
inline uint32_t read_fpscr()
{
uint32_t fpscr;
ARCH_ARM_ASM
(
__ASM_EMIT("vmrs %[fpscr], FPSCR")
: [fpscr] "=&r" (fpscr)
: :
);
return fpscr;
}
inline void write_fpscr(uint32_t fpscr)
{
ARCH_ARM_ASM
(
__ASM_EMIT("vmsr FPSCR, %[fpscr]")
:
: [fpscr] "r" (fpscr)
:
);
}
}
}
#endif /* PRIVATE_DSP_ARCH_ARM_FPSCR_H_ */
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