36 lines
1016 B
ArmAsm
36 lines
1016 B
ArmAsm
# Ikarus Scheme -- A compiler for R6RS Scheme.
|
|
# Copyright (C) 2006,2007 Abdulaziz Ghuloum
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License version 3 as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program 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
|
|
# General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
.text
|
|
.globl cpu_has_sse2
|
|
.globl _cpu_has_sse2
|
|
|
|
.align 8
|
|
|
|
cpu_has_sse2:
|
|
_cpu_has_sse2:
|
|
# callee-save registers are $ebx, %esi, %edi, %esp, $ebp
|
|
# cpuid modifies %eax, %ebx, %ecx, %edx
|
|
# only %ebx needs to be saved/restored
|
|
push %ebx
|
|
movl $1, %eax
|
|
cpuid
|
|
movl %edx, %eax
|
|
sarl $26, %eax
|
|
andl $1, %eax
|
|
pop %ebx
|
|
ret
|