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/*
* Copyright (C) 2013 Andrew Turner
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "aeabi_vfp.h"
.fpu vfp
.syntax unified
/* int __aeabi_fcmpeq(float, float) */
AEABI_ENTRY(fcmpeq)
LOAD_SREGS(s0, s1, r0, r1)
vcmp.f32 s0, s1
vmrs APSR_nzcv, fpscr
movne r0, #0
moveq r0, #1
RET
AEABI_END(fcmpeq)
/* int __aeabi_fcmplt(float, float) */
AEABI_ENTRY(fcmplt)
LOAD_SREGS(s0, s1, r0, r1)
vcmp.f32 s0, s1
vmrs APSR_nzcv, fpscr
movcs r0, #0
movlt r0, #1
RET
AEABI_END(fcmplt)
/* int __aeabi_fcmple(float, float) */
AEABI_ENTRY(fcmple)
LOAD_SREGS(s0, s1, r0, r1)
vcmp.f32 s0, s1
vmrs APSR_nzcv, fpscr
movhi r0, #0
movls r0, #1
RET
AEABI_END(fcmple)
/* int __aeabi_fcmpge(float, float) */
AEABI_ENTRY(fcmpge)
LOAD_SREGS(s0, s1, r0, r1)
vcmp.f32 s0, s1
vmrs APSR_nzcv, fpscr
movlt r0, #0
movge r0, #1
RET
AEABI_END(fcmpge)
/* int __aeabi_fcmpgt(float, float) */
AEABI_ENTRY(fcmpgt)
LOAD_SREGS(s0, s1, r0, r1)
vcmp.f32 s0, s1
vmrs APSR_nzcv, fpscr
movle r0, #0
movgt r0, #1
RET
AEABI_END(fcmpgt)
/* int __aeabi_fcmpun(float, float) */
AEABI_ENTRY(fcmpun)
LOAD_SREGS(s0, s1, r0, r1)
vcmp.f32 s0, s1
vmrs APSR_nzcv, fpscr
movvc r0, #0
movvs r0, #1
RET
AEABI_END(fcmpun)
/* int __aeabi_f2iz(float) */
AEABI_ENTRY(f2iz)
LOAD_SREG(s0, r0)
#if 0
/*
* This should be the correct instruction, but binutils incorrectly
* encodes it as the version that used FPSCR to determine the rounding.
* When binutils is fixed we can use this again.
*/
vcvt.s32.f32 s0, s0
#else
ftosizs s0, s0
#endif
vmov r0, s0
RET
AEABI_END(f2iz)
/* double __aeabi_f2d(float) */
AEABI_ENTRY(f2d)
LOAD_SREG(s0, r0)
vcvt.f64.f32 d0, s0
UNLOAD_DREG(r0, r1, d0)
RET
AEABI_END(f2d)
/* float __aeabi_i2f(int) */
AEABI_ENTRY(i2f)
vmov s0, r0
vcvt.f32.s32 s0, s0
UNLOAD_SREG(r0, s0)
RET
AEABI_END(i2f)
/* float __aeabi_fadd(float, float) */
AEABI_ENTRY(fadd)
LOAD_SREGS(s0, s1, r0, r1)
vadd.f32 s0, s0, s1
UNLOAD_SREG(r0, s0)
RET
AEABI_END(fadd)
/* float __aeabi_fmul(float, float) */
AEABI_ENTRY(fdiv)
LOAD_SREGS(s0, s1, r0, r1)
vdiv.f32 s0, s0, s1
UNLOAD_SREG(r0, s0)
RET
AEABI_END(fdiv)
/* float __aeabi_fmul(float, float) */
AEABI_ENTRY(fmul)
LOAD_SREGS(s0, s1, r0, r1)
vmul.f32 s0, s0, s1
UNLOAD_SREG(r0, s0)
RET
AEABI_END(fmul)
/* float __aeabi_fsub(float, float) */
AEABI_ENTRY(fsub)
LOAD_SREGS(s0, s1, r0, r1)
vsub.f32 s0, s0, s1
UNLOAD_SREG(r0, s0)
RET
AEABI_END(fsub)
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