diff options
Diffstat (limited to 'arch/mips/include/asm/inst.h')
| -rw-r--r-- | arch/mips/include/asm/inst.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/mips/include/asm/inst.h b/arch/mips/include/asm/inst.h new file mode 100644 index 000000000..2f98ced30 --- /dev/null +++ b/arch/mips/include/asm/inst.h @@ -0,0 +1,88 @@ +/* + * Format of an instruction in memory. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1996, 2000 by Ralf Baechle + * Copyright (C) 2006 by Thiemo Seufer + */ +#ifndef _ASM_INST_H +#define _ASM_INST_H + +#include <uapi/asm/inst.h> + +/* HACHACHAHCAHC ... */ + +/* In case some other massaging is needed, keep MIPSInst as wrapper */ + +#define MIPSInst(x) x + +#define I_OPCODE_SFT 26 +#define MIPSInst_OPCODE(x) (MIPSInst(x) >> I_OPCODE_SFT) + +#define I_JTARGET_SFT 0 +#define MIPSInst_JTARGET(x) (MIPSInst(x) & 0x03ffffff) + +#define I_RS_SFT 21 +#define MIPSInst_RS(x) ((MIPSInst(x) & 0x03e00000) >> I_RS_SFT) + +#define I_RT_SFT 16 +#define MIPSInst_RT(x) ((MIPSInst(x) & 0x001f0000) >> I_RT_SFT) + +#define I_IMM_SFT 0 +#define MIPSInst_SIMM(x) ((int)((short)(MIPSInst(x) & 0xffff))) +#define MIPSInst_UIMM(x) (MIPSInst(x) & 0xffff) + +#define I_CACHEOP_SFT 18 +#define MIPSInst_CACHEOP(x) ((MIPSInst(x) & 0x001c0000) >> I_CACHEOP_SFT) + +#define I_CACHESEL_SFT 16 +#define MIPSInst_CACHESEL(x) ((MIPSInst(x) & 0x00030000) >> I_CACHESEL_SFT) + +#define I_RD_SFT 11 +#define MIPSInst_RD(x) ((MIPSInst(x) & 0x0000f800) >> I_RD_SFT) + +#define I_RE_SFT 6 +#define MIPSInst_RE(x) ((MIPSInst(x) & 0x000007c0) >> I_RE_SFT) + +#define I_FUNC_SFT 0 +#define MIPSInst_FUNC(x) (MIPSInst(x) & 0x0000003f) + +#define I_FFMT_SFT 21 +#define MIPSInst_FFMT(x) ((MIPSInst(x) & 0x01e00000) >> I_FFMT_SFT) + +#define I_FT_SFT 16 +#define MIPSInst_FT(x) ((MIPSInst(x) & 0x001f0000) >> I_FT_SFT) + +#define I_FS_SFT 11 +#define MIPSInst_FS(x) ((MIPSInst(x) & 0x0000f800) >> I_FS_SFT) + +#define I_FD_SFT 6 +#define MIPSInst_FD(x) ((MIPSInst(x) & 0x000007c0) >> I_FD_SFT) + +#define I_FR_SFT 21 +#define MIPSInst_FR(x) ((MIPSInst(x) & 0x03e00000) >> I_FR_SFT) + +#define I_FMA_FUNC_SFT 3 +#define MIPSInst_FMA_FUNC(x) ((MIPSInst(x) & 0x00000038) >> I_FMA_FUNC_SFT) + +#define I_FMA_FFMT_SFT 0 +#define MIPSInst_FMA_FFMT(x) (MIPSInst(x) & 0x00000007) + +typedef unsigned int mips_instruction; + +/* microMIPS instruction decode structure. Do NOT export!!! */ +struct mm_decoded_insn { + mips_instruction insn; + mips_instruction next_insn; + int pc_inc; + int next_pc_inc; + int micro_mips_mode; +}; + +/* Recode table from 16-bit register notation to 32-bit GPR. Do NOT export!!! */ +extern const int reg16to32[]; + +#endif /* _ASM_INST_H */ |