| 1 | /* $Id: bs3-cpu-generated-1-template.c 65926 2017-03-03 11:00:27Z vboxsync $ */
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| 2 | /** @file
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| 3 | * BS3Kit - bs3-cpu-generated-1, C code template.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007-2017 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #ifndef BS3_INSTANTIATING_CMN
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| 28 | # error "BS3_INSTANTIATING_CMN not defined"
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| 29 | #endif
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| 30 |
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| 31 |
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| 32 | /*********************************************************************************************************************************
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| 33 | * Header Files *
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| 34 | *********************************************************************************************************************************/
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| 35 | #include <iprt/asm.h>
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| 36 | #include <iprt/asm-amd64-x86.h>
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| 37 |
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| 38 | #include "bs3-cpu-generated-1.h"
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| 39 |
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| 40 |
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| 41 | /*********************************************************************************************************************************
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| 42 | * Structures and Typedefs *
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| 43 | *********************************************************************************************************************************/
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| 44 | /**
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| 45 | * The state.
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| 46 | */
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| 47 | typedef struct BS3CG1STATE
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| 48 | {
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| 49 | /** @name Instruction details (expanded from BS3CG1INSTR).
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| 50 | * @{ */
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| 51 | /** Pointer to the mnemonic string (not terminated) (g_achBs3Cg1Mnemonics). */
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| 52 | const char BS3_FAR *pchMnemonic;
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| 53 | /** Pointer to the test header. */
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| 54 | PCBS3CG1TESTHDR pTestHdr;
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| 55 | /** Pointer to the per operand flags (g_abBs3Cg1Operands). */
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| 56 | const uint8_t BS3_FAR *pabOperands;
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| 57 | /** Opcode bytes (g_abBs3Cg1Opcodes). */
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| 58 | const uint8_t BS3_FAR *pabOpcodes;
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| 59 |
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| 60 | /** The instruction flags. */
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| 61 | uint32_t fFlags;
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| 62 | /** The encoding. */
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| 63 | BS3CG1ENC enmEncoding;
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| 64 | #if ARCH_BITS == 16
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| 65 | uint16_t u16Padding0;
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| 66 | #endif
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| 67 | /** Per operand flags. */
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| 68 | BS3CG1OP aenmOperands[4];
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| 69 | /** Opcode bytes. */
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| 70 | uint8_t abOpcodes[4];
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| 71 |
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| 72 | /** The length of the mnemonic. */
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| 73 | uint8_t cchMnemonic;
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| 74 | /** Whether to advance the mnemonic pointer or not. */
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| 75 | uint8_t fAdvanceMnemonic;
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| 76 | /** The number of opcode bytes. */
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| 77 | uint8_t cbOpcode;
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| 78 | /** Number of operands. */
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| 79 | uint8_t cOperands;
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| 80 | /** @} */
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| 81 |
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| 82 | /** Operand size (16, 32, 64, or 0). */
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| 83 | uint8_t cBitsOp;
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| 84 | /** Target ring (0..3). */
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| 85 | uint8_t uCpl;
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| 86 |
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| 87 | /** Target mode (g_bBs3CurrentMode). */
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| 88 | uint8_t bMode;
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| 89 |
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| 90 | uint8_t abPadding1[2];
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| 91 |
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| 92 | /** Page to put code in. When paging is enabled, the page before and after
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| 93 | * are marked not-present. */
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| 94 | uint8_t BS3_FAR *pbCodePg;
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| 95 | /** Page for placing data operands in. When paging is enabled, the page before
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| 96 | * and after are marked not-present. */
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| 97 | uint8_t BS3_FAR *pbDataPg;
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| 98 |
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| 99 | /** The context we're working on. */
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| 100 | BS3REGCTX Ctx;
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| 101 | /** The trap context and frame. */
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| 102 | BS3TRAPFRAME TrapFrame;
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| 103 | /** Initial contexts, one for each ring. */
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| 104 | BS3REGCTX aInitialCtxs[4];
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| 105 |
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| 106 | /** Memory operand scratch space. */
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| 107 | union
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| 108 | {
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| 109 | uint8_t ab[128];
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| 110 | uint16_t au16[128 / sizeof(uint16_t)];
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| 111 | uint32_t au32[128 / sizeof(uint32_t)];
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| 112 | uint64_t au64[128 / sizeof(uint64_t)];
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| 113 | } MemOp;
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| 114 | } BS3CG1STATE;
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| 115 |
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| 116 |
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| 117 |
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| 118 | BS3_DECL_FAR(uint8_t) BS3_CMN_NM(bs3CpuInstr2_mul)(uint8_t bMode)
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| 119 | {
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| 120 | BS3CG1STATE This;
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| 121 | unsigned const iFirstRing = BS3_MODE_IS_V86(bMode) ? 3 : 0;
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| 122 | unsigned const cRings = BS3_MODE_IS_RM_OR_V86(bMode) ? 1 : 4;
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| 123 | unsigned iRing;
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| 124 | unsigned iInstr;
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| 125 | BS3MEMKIND const enmMemKind = BS3_MODE_IS_RM_OR_V86(bMode) ? BS3MEMKIND_REAL
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| 126 | : BS3_MODE_IS_16BIT_CODE(bMode) ? BS3MEMKIND_TILED : BS3MEMKIND_FLAT32;
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| 127 |
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| 128 | /*
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| 129 | * Initalize the state.
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| 130 | */
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| 131 | Bs3MemSet(&This, 0, sizeof(This));
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| 132 |
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| 133 | This.bMode = bMode;
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| 134 | This.pchMnemonic = g_achBs3Cg1Mnemonics;
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| 135 | This.pabOperands = g_abBs3Cg1Operands;
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| 136 | This.pabOpcodes = g_abBs3Cg1Opcodes;
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| 137 |
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| 138 | /* Allocate guarded exectuable and data memory. */
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| 139 | if (BS3_MODE_IS_PAGED(bMode))
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| 140 | {
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| 141 | This.pbCodePg = Bs3MemGuardedTestPageAlloc(enmMemKind);
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| 142 | if (This.pbCodePg)
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| 143 | {
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| 144 | Bs3TestFailedF("First Bs3MemGuardedTestPageAlloc(%d) failed", enmMemKind);
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| 145 | return 0;
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| 146 | }
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| 147 | This.pbDataPg = Bs3MemGuardedTestPageAlloc(enmMemKind);
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| 148 | if (!This.pbDataPg)
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| 149 | {
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| 150 | Bs3MemGuardedTestPageFree(This.pbCodePg);
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| 151 | Bs3TestFailedF("Second Bs3MemGuardedTestPageAlloc(%d) failed", enmMemKind);
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| 152 | return 0;
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| 153 | }
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| 154 | }
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| 155 | else
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| 156 | {
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| 157 | This.pbCodePg = Bs3MemAlloc(enmMemKind, X86_PAGE_SIZE);
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| 158 | if (!This.pbCodePg)
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| 159 | {
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| 160 | Bs3TestFailedF("First Bs3MemAlloc(%d,Pg) failed", enmMemKind);
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| 161 | return 0;
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| 162 | }
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| 163 | This.pbDataPg = Bs3MemAlloc(enmMemKind, X86_PAGE_SIZE);
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| 164 | if (!This.pbDataPg)
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| 165 | {
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| 166 | Bs3MemFree(This.pbCodePg, X86_PAGE_SIZE);
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| 167 | Bs3TestFailedF("Second Bs3MemAlloc(%d,Pg) failed", enmMemKind);
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| 168 | return 0;
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| 169 | }
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| 170 | }
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| 171 |
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| 172 | Bs3RegCtxSaveEx(&This.aInitialCtxs[iFirstRing], bMode, 512);
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| 173 | for (iRing = iFirstRing + 1; iRing < cRings; iRing++)
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| 174 | Bs3RegCtxConvertToRingX(&This.aInitialCtxs[iFirstRing], iRing);
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| 175 |
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| 176 | /*
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| 177 | * Test the instructions.
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| 178 | */
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| 179 | for (iInstr = 0; iInstr < g_cBs3Cg1Instructions;
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| 180 | iInstr++,
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| 181 | This.pchMnemonic += This.fAdvanceMnemonic * This.cchMnemonic,
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| 182 | This.pabOperands += This.cOperands,
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| 183 | This.pabOpcodes += This.cbOpcode )
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| 184 | {
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| 185 | unsigned iEncoding;
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| 186 |
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| 187 | /*
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| 188 | * Expand the instruction information into the state.
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| 189 | * Note! 16-bit will switch to a two level test header lookup once we exceed 64KB.
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| 190 | */
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| 191 | PCBS3CG1INSTR pInstr = &g_aBs3Cg1Instructions[iInstr];
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| 192 | This.pTestHdr = (PCBS3CG1TESTHDR)&g_abBs3Cg1Tests[pInstr->offTests];
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| 193 | This.fFlags = pInstr->fFlags;
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| 194 | This.enmEncoding = (BS3CG1ENC)pInstr->enmEncoding;
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| 195 | This.cchMnemonic = pInstr->cchMnemonic;
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| 196 | This.fAdvanceMnemonic= pInstr->fAdvanceMnemonic;
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| 197 | This.cOperands = pInstr->cOperands;
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| 198 | This.cbOpcode = pInstr->cbOpcode;
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| 199 | switch (This.cOperands)
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| 200 | {
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| 201 | case 3: This.aenmOperands[3] = (BS3CG1OP)This.pabOperands[3];
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| 202 | case 2: This.aenmOperands[2] = (BS3CG1OP)This.pabOperands[2];
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| 203 | case 1: This.aenmOperands[1] = (BS3CG1OP)This.pabOperands[1];
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| 204 | case 0: This.aenmOperands[0] = (BS3CG1OP)This.pabOperands[0];
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| 205 | }
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| 206 |
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| 207 | switch (This.cbOpcode)
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| 208 | {
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| 209 | case 3: This.abOpcodes[3] = This.pabOpcodes[3];
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| 210 | case 2: This.abOpcodes[2] = This.pabOpcodes[2];
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| 211 | case 1: This.abOpcodes[1] = This.pabOpcodes[1];
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| 212 | case 0: This.abOpcodes[0] = This.pabOpcodes[0];
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| 213 | }
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| 214 |
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| 215 | if (This.enmEncoding <= BS3CG1ENC_INVALID || This.enmEncoding >= BS3CG1ENC_END)
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| 216 | {
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| 217 | Bs3TestFailedF("Invalid enmEncoding for instruction #%u (%.*s): %d",
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| 218 | iInstr, This.cchMnemonic, This.pchMnemonic, This.enmEncoding);
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| 219 | continue;
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| 220 | }
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| 221 |
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| 222 | /*
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| 223 | * Encode the instruction in various ways and check out the test values.
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| 224 | */
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| 225 | for (iEncoding = 0; ; iEncoding++)
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| 226 | {
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| 227 | //switch (This.enmEncoding)
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| 228 | //{
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| 229 | //
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| 230 | //}
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| 231 |
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| 232 |
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| 233 | /*
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| 234 | * Run the tests.
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| 235 | */
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| 236 |
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| 237 | }
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| 238 |
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| 239 | }
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| 240 |
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| 241 | return 0;
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| 242 | }
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| 243 |
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