From ae3e1d22fc3bfff8c246a0a743b77f4096d95b74 Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Mon, 30 Jul 2007 17:54:01 -0700 Subject: X86: Add decoding for x87 floating point. --HG-- extra : convert_revision : 08f0f4a3d77a2c5eb9b5ca0cae7d0be9a72febec --- src/arch/x86/isa/decoder/one_byte_opcodes.isa | 11 +- src/arch/x86/isa/decoder/x87.isa | 346 ++++++++++++++++++++++++++ 2 files changed, 347 insertions(+), 10 deletions(-) create mode 100644 src/arch/x86/isa/decoder/x87.isa diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa index 507f75bb8..7c627b0c2 100644 --- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa @@ -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(); diff --git a/src/arch/x86/isa/decoder/x87.isa b/src/arch/x86/isa/decoder/x87.isa new file mode 100644 index 000000000..f16647fe5 --- /dev/null +++ b/src/arch/x86/isa/decoder/x87.isa @@ -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(); + } + } +} -- cgit v1.2.3