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Diffstat (limited to 'Transceiver52M/arch/arm/convert_neon.S')
| -rw-r--r-- | Transceiver52M/arch/arm/convert_neon.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Transceiver52M/arch/arm/convert_neon.S b/Transceiver52M/arch/arm/convert_neon.S new file mode 100644 index 0000000..842ed9f --- /dev/null +++ b/Transceiver52M/arch/arm/convert_neon.S @@ -0,0 +1,51 @@ +/* + * NEON type conversions + * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc> + * + * This library 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 2.1 of the License, or (at your option) any later version. + * + * This library 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 this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + + .syntax unified + .text + .align 2 + .global neon_convert_ps_si16_4n + .type neon_convert_ps_si16_4n, %function +neon_convert_ps_si16_4n: + vld1.32 {q1}, [r2] +.loop_fltint: + vld1.64 {d0-d1}, [r1]! + vmul.f32 q0, q1 + vcvt.s32.f32 q2, q0 + vqmovn.s32 d0, q2 + vst1.64 {d0}, [r0]! + subs r3, #1 + bne .loop_fltint + bx lr + .size neon_convert_ps_si16_4n, .-neon_convert_ps_si16_4n + .text + .align 2 + .global neon_convert_si16_ps_4n + .type neon_convert_si16_ps_4n, %function +neon_convert_si16_ps_4n: +.loop_intflt: + vld1.64 {d0}, [r1]! + vmovl.s16 q1, d0 + vcvt.f32.s32 q0, q1 + vst1.64 {q0}, [r0]! + subs r2, #1 + bne .loop_intflt + bx lr + .size neon_convert_si16_ps_4n, .-neon_convert_si16_ps_4n + .section .note.GNU-stack,"",%progbits |