1/* ********************************************************************* 2 * Broadcom Common Firmware Environment (CFE) 3 * 4 * MIPS disassembler File: disasm.c 5 * 6 * ARM disassembler (used by ui_examcmds.c) 7 * 8 * Author: 9 * 10 ********************************************************************* 11 * 12 * Copyright 2000,2001,2002,2003 13 * Broadcom Corporation. All rights reserved. 14 * 15 * This software is furnished under license and may be used and 16 * copied only in accordance with the following terms and 17 * conditions. Subject to these conditions, you may download, 18 * copy, install, use, modify and distribute modified or unmodified 19 * copies of this software in source and/or binary form. No title 20 * or ownership is transferred hereby. 21 * 22 * 1) Any source code used, modified or distributed must reproduce 23 * and retain this copyright notice and list of conditions 24 * as they appear in the source file. 25 * 26 * 2) No right is granted to use any trade name, trademark, or 27 * logo of Broadcom Corporation. The "Broadcom Corporation" 28 * name may not be used to endorse or promote products derived 29 * from this software without the prior written permission of 30 * Broadcom Corporation. 31 * 32 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR 33 * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED 34 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 35 * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT 36 * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN 37 * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, 38 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 39 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 40 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 41 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 42 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 43 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF 44 * THE POSSIBILITY OF SUCH DAMAGE. 45 ********************************************************************* */ 46 47 48#include "lib_types.h" 49#include "lib_string.h" 50#include "disasm.h" 51#include "lib_printf.h" 52 53 54 55 56/* We're pulling some trickery here. Most of the time, this structure operates 57 exactly as one would expect. The special case, when type == DC_DREF, 58 means name points to a byte that is an index into a dereferencing array. */ 59 60/* 61 * To make matters worse, the whole module has been coded to reduce the 62 * number of relocations present, so we don't actually store pointers 63 * in the dereferencing array. Instead, we store fixed-width strings 64 * and use digits to represent indicies into the deref array. 65 * 66 * This is all to make more things fit in the relocatable version, 67 * since every initialized pointer goes into our small data segment. 68 */ 69 70typedef struct { 71 char name[15]; 72 char type; 73} disasm_t; 74 75typedef struct { 76 const disasm_t *ptr; 77 int shift; 78 uint32_t mask; 79} disasm_deref_t; 80 81/* Forward declaration of deref array, we need this for the disasm_t definitions */ 82 83 84 85static const disasm_t *get_disasm_field(uint32_t inst) 86{ 87 return NULL; 88} 89 90char *disasm_inst_name(uint32_t inst) 91{ 92 return (char *)(get_disasm_field(inst)->name); 93} 94 95void disasm_inst(char *buf, int buf_size, uint32_t inst, uint64_t pc) 96{ 97 buf[buf_size-1] = 0; 98 99} 100