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