1 /* xgate.h -- Freescale XGATE opcode list 2 Copyright 2010, 2011, 2012 Free Software Foundation, Inc. 3 Written by Sean Keys (skeys@ipdatasys.com) 4 5 This file is part of the GNU opcodes library. 6 7 This library is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 It is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15 License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this file; see the file COPYING. If not, write to the 19 Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 #ifndef _OPCODE_XGATE_H 23 #define _OPCODE_XGATE_H 24 25 /* XGATE CCR flag definitions. */ 26 #define XGATE_N_BIT 0x08 /* XGN - Sign Flag */ 27 #define XGATE_Z_BIT 0x04 /* XGZ - Zero Flag */ 28 #define XGATE_V_BIT 0x02 /* XGV - Overflow Flag */ 29 #define XGATE_C_BIT 0x01 /* XGC - Carry Flag */ 30 31 /* Access Detail Notation 32 V — Vector fetch: always an aligned word read, lasts for at least one RISC core cycle 33 P — Program word fetch: always an aligned word read, lasts for at least one RISC core cycle 34 r — 8-bit data read: lasts for at least one RISC core cycle 35 R — 16-bit data read: lasts for at least one RISC core cycle 36 w — 8-bit data write: lasts for at least one RISC core cycle 37 W — 16-bit data write: lasts for at least one RISC core cycle 38 A — Alignment cycle: no read or write, lasts for zero or one RISC core cycles 39 f — Free cycle: no read or write, lasts for one RISC core cycles. */ 40 #define XGATE_CYCLE_V 0x01 41 #define XGATE_CYCLE_P 0x02 42 #define XGATE_CYCLE_r 0x04 43 #define XGATE_CYCLE_R 0x08 44 #define XGATE_CYCLE_w 0x10 45 #define XGATE_CYCLE_W 0x20 46 #define XGATE_CYCLE_A 0x40 47 #define XGATE_CYCLE_f 0x80 48 49 /* Opcode format abbreviations. */ 50 #define XG_INH 0x0001 /* Inherent. */ 51 #define XG_I 0x0002 /* 3-bit immediate address. */ 52 #define XG_R_I 0x0004 /* Register followed by 4/8-bit immediate value. */ 53 #define XG_R_R 0x0008 /* Register followed by a register. */ 54 #define XG_R_R_R 0x0010 /* Register followed by two registers. */ 55 #define XG_R 0x0020 /* Single register. */ 56 #define XG_PC 0x0040 /* PC relative 10 or 11 bit. */ 57 #define XG_R_C 0x0080 /* General register followed by ccr register. */ 58 #define XG_C_R 0x0100 /* CCR register followed by a general register. */ 59 #define XG_R_P 0x0200 /* General register followed by pc register. */ 60 #define XG_R_R_I 0x0400 /* Two general registers followed by an immediate value. */ 61 #define XG_PCREL 0x0800 /* Immediate value that is relative to the current pc. */ 62 63 /* XGATE operand formats as stored in the XGATE_opcode table. 64 They are only used by GAS to recognize operands. */ 65 #define XGATE_OP_INH "" 66 #define XGATE_OP_TRI "r,r,r" 67 #define XGATE_OP_DYA "r,r" 68 #define XGATE_OP_IMM16 "r,if" 69 #define XGATE_OP_IMM8 "r,i8" 70 #define XGATE_OP_IMM4 "r,i4" 71 #define XGATE_OP_IMM3 "i3" 72 #define XGATE_OP_MON "r" 73 #define XGATE_OP_MON_R_C "r,c" 74 #define XGATE_OP_MON_C_R "c,r" 75 #define XGATE_OP_MON_R_P "r,p" 76 #define XGATE_OP_IDR "r,r,+" 77 #define XGATE_OP_IDO5 "r,r,i5" 78 #define XGATE_OP_REL9 "b9" 79 #define XGATE_OP_REL10 "ba" 80 #define XGATE_OP_DYA_MON "=r" 81 /* Macro definitions. */ 82 #define XGATE_OP_IMM16mADD "r,if; addl addh" 83 #define XGATE_OP_IMM16mAND "r,if; andl andh" 84 #define XGATE_OP_IMM16mCPC "r,if; cmpl cpch" 85 #define XGATE_OP_IMM16mSUB "r,if; subl subh" 86 #define XGATE_OP_IMM16mLDW "r,if; ldl ldh" 87 88 /* CPU variant identification. */ 89 #define XGATE_V1 0x1 90 #define XGATE_V2 0x2 91 #define XGATE_V3 0x4 92 93 /* Max opcodes per opcode handle. */ 94 #define MAX_OPCODES 0x05 95 96 #define MAX_DETECT_CHARS 0x10 97 98 /* The opcode table definitions. */ 99 struct xgate_opcode 100 { 101 char * name; /* Op-code name. */ 102 char * constraints; /* Constraint chars. */ 103 char * format; /* Bit definitions. */ 104 unsigned int sh_format; /* Shorthand format mask. */ 105 unsigned int size; /* Opcode size in bytes. */ 106 unsigned int bin_opcode; /* Binary opcode with operands masked off. */ 107 unsigned char cycles_min; /* Minimum cpu cycles needed. */ 108 unsigned char cycles_max; /* Maximum cpu cycles needed. */ 109 unsigned char set_flags_mask; /* CCR flags set. */ 110 unsigned char clr_flags_mask; /* CCR flags cleared. */ 111 unsigned char chg_flags_mask; /* CCR flags changed. */ 112 unsigned char arch; /* CPU variant. */ 113 }; 114 115 /* The opcode table. The table contains all the opcodes (all pages). 116 You can't rely on the order. */ 117 extern const struct xgate_opcode xgate_opcodes[]; 118 extern const int xgate_num_opcodes; 119 120 #endif /* _OPCODE_XGATE_H */ 121