1 /* 2 * Format of an instruction in memory. 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1996, 2000 by Ralf Baechle 9 * Copyright (C) 2006 by Thiemo Seufer 10 */ 11 #ifndef _ASM_INST_H 12 #define _ASM_INST_H 13 14 #include <uapi/asm/inst.h> 15 16 /* HACHACHAHCAHC ... */ 17 18 /* In case some other massaging is needed, keep MIPSInst as wrapper */ 19 20 #define MIPSInst(x) x 21 22 #define I_OPCODE_SFT 26 23 #define MIPSInst_OPCODE(x) (MIPSInst(x) >> I_OPCODE_SFT) 24 25 #define I_JTARGET_SFT 0 26 #define MIPSInst_JTARGET(x) (MIPSInst(x) & 0x03ffffff) 27 28 #define I_RS_SFT 21 29 #define MIPSInst_RS(x) ((MIPSInst(x) & 0x03e00000) >> I_RS_SFT) 30 31 #define I_RT_SFT 16 32 #define MIPSInst_RT(x) ((MIPSInst(x) & 0x001f0000) >> I_RT_SFT) 33 34 #define I_IMM_SFT 0 35 #define MIPSInst_SIMM(x) ((int)((short)(MIPSInst(x) & 0xffff))) 36 #define MIPSInst_UIMM(x) (MIPSInst(x) & 0xffff) 37 38 #define I_CACHEOP_SFT 18 39 #define MIPSInst_CACHEOP(x) ((MIPSInst(x) & 0x001c0000) >> I_CACHEOP_SFT) 40 41 #define I_CACHESEL_SFT 16 42 #define MIPSInst_CACHESEL(x) ((MIPSInst(x) & 0x00030000) >> I_CACHESEL_SFT) 43 44 #define I_RD_SFT 11 45 #define MIPSInst_RD(x) ((MIPSInst(x) & 0x0000f800) >> I_RD_SFT) 46 47 #define I_RE_SFT 6 48 #define MIPSInst_RE(x) ((MIPSInst(x) & 0x000007c0) >> I_RE_SFT) 49 50 #define I_FUNC_SFT 0 51 #define MIPSInst_FUNC(x) (MIPSInst(x) & 0x0000003f) 52 53 #define I_FFMT_SFT 21 54 #define MIPSInst_FFMT(x) ((MIPSInst(x) & 0x01e00000) >> I_FFMT_SFT) 55 56 #define I_FT_SFT 16 57 #define MIPSInst_FT(x) ((MIPSInst(x) & 0x001f0000) >> I_FT_SFT) 58 59 #define I_FS_SFT 11 60 #define MIPSInst_FS(x) ((MIPSInst(x) & 0x0000f800) >> I_FS_SFT) 61 62 #define I_FD_SFT 6 63 #define MIPSInst_FD(x) ((MIPSInst(x) & 0x000007c0) >> I_FD_SFT) 64 65 #define I_FR_SFT 21 66 #define MIPSInst_FR(x) ((MIPSInst(x) & 0x03e00000) >> I_FR_SFT) 67 68 #define I_FMA_FUNC_SFT 2 69 #define MIPSInst_FMA_FUNC(x) ((MIPSInst(x) & 0x0000003c) >> I_FMA_FUNC_SFT) 70 71 #define I_FMA_FFMT_SFT 0 72 #define MIPSInst_FMA_FFMT(x) (MIPSInst(x) & 0x00000003) 73 74 typedef unsigned int mips_instruction; 75 76 /* microMIPS instruction decode structure. Do NOT export!!! */ 77 struct mm_decoded_insn { 78 mips_instruction insn; 79 mips_instruction next_insn; 80 int pc_inc; 81 int next_pc_inc; 82 int micro_mips_mode; 83 }; 84 85 /* Recode table from 16-bit register notation to 32-bit GPR. Do NOT export!!! */ 86 extern const int reg16to32[]; 87 88 #endif /* _ASM_INST_H */ 89