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X86: Add decoding for x87 floating point.

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--HG--
extra : convert_revision : 08f0f4a3d77a2c5eb9b5ca0cae7d0be9a72febec
This commit is contained in:
Gabe Black
2007-07-30 17:54:01 -07:00
parent 463e8a7516
commit ae3e1d22fc
2 changed files with 347 additions and 10 deletions
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11
src/arch/x86/isa/decoder/one_byte_opcodes.isa
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@@ -470,16 +470,7 @@
}
0x7: xlat();
}
0x1B: decode OPCODE_OP_BOTTOM3 {
0x0: esc0();
0x1: esc1();
0x2: esc2();
0x3: esc3();
0x4: esc4();
0x5: esc5();
0x6: esc6();
0x7: esc7();
}
##include "x87.isa"
0x1C: decode OPCODE_OP_BOTTOM3 {
0x0: loopne_Jb();
0x1: loope_Jb();

346
src/arch/x86/isa/decoder/x87.isa Normal file
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@@ -0,0 +1,346 @@
// 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
0x1B: decode OPCODE_OP_BOTTOM3 {
//0x0: esc0();
0x0: decode MODRM_REG {
0x0: fadd();
0x1: fmul();
0x2: fcom();
0x3: fcomp();
0x4: fsub();
0x5: fsubr();
0x6: fdiv();
0x7: fdivr();
}
//0x1: esc1();
0x1: decode MODRM_REG {
0x0: fld();
0x1: decode MODRM_MOD {
0x3: fxch();
default: Inst::UD2();
}
0x2: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x0: fnop();
default: Inst::UD2();
}
default: fst();
}
0x3: decode MODRM_MOD {
0x3: Inst::UD2();
default: fstp();
}
0x4: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x0: fchs();
0x1: fabs();
0x4: ftst();
0x5: fxam();
default: Inst::UD2();
}
default: fldenv();
}
0x5: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x0: fld1();
0x1: fldl2t();
0x2: fldl2e();
0x3: fldpi();
0x4: fldlg2();
0x5: fldln2();
0x6: fldz();
}
default: fldcw();
}
0x6: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x0: f2xm1();
0x1: fyl2x();
0x2: fptan();
0x3: fpatan();
0x4: fxtract();
0x5: fprem1();
0x6: fdecstp();
0x7: fincstp();
}
default: fnstenv();
}
0x7: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x0: fprem();
0x1: fyl2xp1();
0x2: fsqrt();
0x3: fsincos();
0x4: frndint();
0x5: fscale();
0x6: fsin();
0x7: fcos();
}
default: fnstcw();
}
}
//0x2: esc2();
0x2: decode MODRM_REG {
0x0: decode MODRM_MOD {
0x3: fcmovb();
default: fiadd();
}
0x1: decode MODRM_MOD {
0x3: fcmove();
default: fimul();
}
0x2: decode MODRM_MOD {
0x3: fcmovbe();
default: ficom();
}
0x3: decode MODRM_MOD {
0x3: fcmovu();
default: ficomp();
}
0x4: decode MODRM_MOD {
0x3: Inst::UD2();
default: fisub();
}
0x5: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x1: fucompp();
default: Inst::UD2();
}
default: fisubr();
}
0x6: decode MODRM_MOD {
0x3: Inst::UD2();
default: fidiv();
}
0x7: decode MODRM_MOD {
0x3: Inst::UD2();
default: fidivr();
}
}
//0x3: esc3();
0x3: decode MODRM_REG {
0x0: decode MODRM_MOD {
0x3: fcmovnb();
default: fild();
}
0x1: decode MODRM_MOD {
0x3: fcmovne();
default: fisttp();
}
0x2: decode MODRM_MOD {
0x3: fcmovnbe();
default: fist();
}
0x3: decode MODRM_MOD {
0x3: fcmovnu();
default: fistp();
}
0x4: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x2: fnclex();
0x3: fninit();
default: Inst::UD2();
}
default: Inst::UD2();
}
0x5: decode MODRM_MOD {
0x3: fucomi();
default: fld();
}
0x6: decode MODRM_MOD {
0x3: fcomi();
default: Inst::UD2();
}
0x7: decode MODRM_MOD {
0x3: Inst::UD2();
default: fstp();
}
}
//0x4: esc4();
0x4: decode MODRM_REG {
0x0: fadd();
0x1: fmul();
0x2: decode MODRM_MOD {
0x3: Inst::UD2();
default: fcom();
}
0x3: decode MODRM_MOD {
0x3: Inst::UD2();
default: fcomp();
}
0x4: decode MODRM_MOD {
0x3: fsubr();
default: fsub();
}
0x5: decode MODRM_MOD {
0x3: fsub();
default: fsubr();
}
0x6: decode MODRM_MOD {
0x3: fdivr();
default: fdiv();
}
0x7: decode MODRM_MOD {
0x3: fdiv();
default: fdivr();
}
}
//0x5: esc5();
0x5: decode MODRM_REG {
0x0: decode MODRM_MOD {
0x3: ffree();
default: fld();
}
0x1: decode MODRM_MOD {
0x3: Inst::UD2();
default: fisttp();
}
0x2: fst();
0x3: fstp();
0x4: decode MODRM_MOD {
0x3: fucom();
default: frstor();
}
0x5: decode MODRM_MOD {
0x3: fucomp();
default: Inst::UD2();
}
0x6: decode MODRM_MOD {
0x3: Inst::UD2();
default: fnsave();
}
0x7: decode MODRM_MOD {
0x3: Inst::UD2();
default: fnstsw();
}
}
//0x6: esc6();
0x6: decode MODRM_REG {
0x0: decode MODRM_MOD {
0x3: faddp();
default: fiadd();
}
0x1: decode MODRM_MOD {
0x3: fmulp();
default: fimul();
}
0x2: decode MODRM_MOD {
0x3: Inst::UD2();
default: ficom();
}
0x3: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x1: fcompp();
default: Inst::UD2();
}
default: ficomp();
}
0x4: decode MODRM_MOD {
0x3: fsubrp();
default: fisub();
}
0x5: decode MODRM_MOD {
0x3: fsubp();
default: fisubr();
}
0x6: decode MODRM_MOD {
0x3: fdivrp();
default: fidiv();
}
0x7: decode MODRM_MOD {
0x3: fdivp();
default: fidivr();
}
}
//0x7: esc7();
0x7: decode MODRM_REG {
0x0: decode MODRM_MOD {
0x3: Inst::UD2();
default: fild();
}
0x1: decode MODRM_MOD {
0x3: Inst::UD2();
default: fisttp();
}
0x2: decode MODRM_MOD {
0x3: Inst::UD2();
default: fist();
}
0x3: decode MODRM_MOD {
0x3: Inst::UD2();
default: fistp();
}
0x4: decode MODRM_MOD {
0x3: decode MODRM_RM {
0x0: fnstsw();
default: Inst::UD2();
}
default: fbld();
}
0x5: decode MODRM_MOD {
0x3: fucomip();
default: fild();
}
0x6: decode MODRM_MOD {
0x3: fcomip();
default: fbstp();
}
0x7: decode MODRM_MOD {
0x3: Inst::UD2();
default: fistp();
}
}
}