Projet_SETI_RISC-V/riscv-gnu-toolchain/newlib/winsup/cygwin/math/nearbyint.S
2023-03-06 14:48:14 +01:00

57 lines
1.1 KiB
ArmAsm

/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#include <_mingw_mac.h>
.file "nearbyint.S"
.text
#ifdef __x86_64__
.align 8
#else
.align 4
#endif
.globl __MINGW_USYMBOL(nearbyint)
.def __MINGW_USYMBOL(nearbyint); .scl 2; .type 32; .endef
__MINGW_USYMBOL(nearbyint):
#if defined(_AMD64_) || defined(__x86_64__)
movsd %xmm0,-16(%rsp)
fldl -16(%rsp)
pushq %rax
pushq %rcx
fnstcw (%rsp)
movq (%rsp), %rax
orq $0x20, %rax
movq %rax, 8(%rsp)
fldcw 8(%rsp)
frndint
fclex
fldcw (%rsp)
popq %rcx
popq %rax
fstpl -16(%rsp)
movsd -16(%rsp),%xmm0
ret
#elif defined(_ARM_) || defined(__arm__)
vmrs r1, fpscr
vcvtr.s32.f64 s0, d0
vcvt.f64.s32 d0, s0
vmsr fpscr, r1
bx lr
#elif defined(_X86_) || defined(__i386__)
fldl 4(%esp)
pushl %eax
pushl %ecx
fnstcw (%esp)
movl (%esp), %eax
orl $0x20, %eax
movl %eax, 4(%esp)
fldcw 4(%esp)
frndint
fclex
fldcw (%esp)
popl %ecx
popl %eax
ret
#endif