X86: Add some SSE floating point/integer conversion microops.

--HG--
extra : convert_revision : 2a1aa16709db940f5f40bbd84ca082f26b03b9c5
This commit is contained in:
Gabe Black 2007-09-04 23:32:18 -07:00
parent af4c04c426
commit 8e3b199cb8
5 changed files with 117 additions and 4 deletions

View file

@ -201,8 +201,10 @@
} }
// repne (0xF2) // repne (0xF2)
0x8: decode OPCODE_OP_BOTTOM3 { 0x8: decode OPCODE_OP_BOTTOM3 {
0x2: cvtsi2sd_Vq_Ed(); // The size of the V operand should be q, not dp
0x4: cvttsd2si_Gd_Wq(); 0x2: Inst::CVTSI2SD(Vdp,Edp);
// The size of the W operand should be q, not dp
0x4: Inst::CVTTSD2SI(Gdp,Wdp);
0x5: cvtsd2si_Gd_Wq(); 0x5: cvtsd2si_Gd_Wq();
default: Inst::UD2(); default: Inst::UD2();
} }

View file

@ -53,7 +53,8 @@
# #
# Authors: Gabe Black # Authors: Gabe Black
categories = ["move"] categories = ["move",
"convert"]
microcode = ''' microcode = '''
# SSE instructions # SSE instructions

View file

@ -0,0 +1,86 @@
# Copyright (c) 2007 The Hewlett-Packard Development Company
# All rights reserved.
#
# Redistribution and use of this software in source and binary forms,
# with or without modification, are permitted provided that the
# following conditions are met:
#
# The software must be used only for Non-Commercial Use which means any
# use which is NOT directed to receiving any direct monetary
# compensation for, or commercial advantage from such use. Illustrative
# examples of non-commercial use are academic research, personal study,
# teaching, education and corporate research & development.
# Illustrative examples of commercial use are distributing products for
# commercial advantage and providing services using the software for
# commercial advantage.
#
# If you wish to use this software or functionality therein that may be
# covered by patents for commercial use, please contact:
# Director of Intellectual Property Licensing
# Office of Strategy and Technology
# Hewlett-Packard Company
# 1501 Page Mill Road
# Palo Alto, California 94304
#
# Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer. 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. Neither the name of
# the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission. No right of
# sublicense is granted herewith. Derivatives of the software and
# output created using the software may be prepared, but only for
# Non-Commercial Uses. Derivatives of the software may be shared with
# others provided: (i) the others agree to abide by the list of
# conditions herein which includes the Non-Commercial Use restrictions;
# and (ii) such Derivatives of the software include the above copyright
# notice to acknowledge the contribution from this software where
# applicable, this list of conditions and the disclaimer below.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
# OWNER 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.
#
# Authors: Gabe Black
microcode = '''
def macroop CVTSI2SD_R_R {
cvtf_i2d xmml, regm
};
def macroop CVTSI2SD_R_M {
ld t1, seg, sib, disp
cvtf_i2d xmml, t1
};
def macroop CVTSI2SD_R_P {
rdip t7
ld t1, seg, riprel, disp
cvtf_i2d xmml, t1
};
def macroop CVTTSD2SI_R_R {
cvtf_d2i reg, xmmlm
};
def macroop CVTTSD2SI_R_M {
ldfp ufp1, seg, sib, disp
cvtf_d2i reg, ufp1
};
def macroop CVTTSD2SI_R_P {
rdip t7
ldfp ufp1, seg, riprel, disp
cvtf_d2i reg, ufp1
};
'''

View file

@ -221,6 +221,11 @@ let {{
self.dataSize = 1 self.dataSize = 1
elif self.size == 'd': elif self.size == 'd':
self.dataSize = 4 self.dataSize = 4
#This is for "double plus" which is normally a double word unless
#the REX W bit is set, in which case it's a quad word. It's used
#for some SSE instructions.
elif self.size == 'dp':
self.dataSize = "(REX_W ? 8 : 4)"
elif self.size == 'q': elif self.size == 'q':
self.dataSize = 8 self.dataSize = 8
elif self.size == 'v': elif self.size == 'v':
@ -251,7 +256,7 @@ let {{
if not self.size: if not self.size:
self.size = size self.size = size
else: else:
if self.size is not size: if self.size != size:
raise Exception, "Conflicting register sizes %s and %s!" %\ raise Exception, "Conflicting register sizes %s and %s!" %\
(self.size, size) (self.size, size)
}}; }};

View file

@ -636,4 +636,23 @@ let {{
class Zext(RegOp): class Zext(RegOp):
code = 'DestReg = bits(psrc1, imm8-1, 0);' code = 'DestReg = bits(psrc1, imm8-1, 0);'
# Conversion microops
class ConvOp(RegOp):
abstract = True
def __init__(self, dest, src1):
super(ConvOp, self).__init__(dest, src1, "NUM_INTREGS")
#FIXME This needs to always use 32 bits unless REX.W is present
class cvtf_i2d(ConvOp):
code = 'FpDestReg = psrc1;'
class cvtf_i2d_hi(ConvOp):
code = 'FpDestReg = bits(SrcReg1, 63, 32);'
class cvtf_d2i(ConvOp):
code = '''
int64_t intSrcReg1 = static_cast<int64_t>(FpSrcReg1);
DestReg = merge(DestReg, intSrcReg1, dataSize);
'''
}}; }};