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author | dim <dim@FreeBSD.org> | 2010-11-01 19:35:33 +0000 |
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committer | dim <dim@FreeBSD.org> | 2010-11-01 19:35:33 +0000 |
commit | 3f5c947f4453c6016a2a6a9636367ee3f48fc6fc (patch) | |
tree | 461aafc934d462eb9b9221308f8e25238c0ada62 /contrib/binutils/include/opcode/cr16.h | |
parent | e6be3e7867eb43d220575baee2ce5662fb03e46c (diff) | |
parent | d0f678fa0ff3f08a4eca29daf4d1ac39797b6326 (diff) | |
download | FreeBSD-src-3f5c947f4453c6016a2a6a9636367ee3f48fc6fc.zip FreeBSD-src-3f5c947f4453c6016a2a6a9636367ee3f48fc6fc.tar.gz |
Merge ^/vendor/binutils/dist@214571 into contrib/binutils, which brings
us up to version 2.17.50.20070703, at the last GPLv2 commit.
Amongst others, this added upstream support for some FreeBSD-specific
things that we previously had to manually hack in, such as the OSABI
label support, and so on.
There are also quite a number of new files, some for cpu's (e.g. SPU)
that we may or may not be interested in, but those can be cleaned up
later on, if needed.
Diffstat (limited to 'contrib/binutils/include/opcode/cr16.h')
-rw-r--r-- | contrib/binutils/include/opcode/cr16.h | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/contrib/binutils/include/opcode/cr16.h b/contrib/binutils/include/opcode/cr16.h new file mode 100644 index 0000000..b7e3be5 --- /dev/null +++ b/contrib/binutils/include/opcode/cr16.h @@ -0,0 +1,437 @@ +/* cr16.h -- Header file for CR16 opcode and register tables. + Copyright 2007 Free Software Foundation, Inc. + Contributed by M R Swami Reddy + + This file is part of GAS, GDB and the GNU binutils. + + GAS, GDB, and GNU binutils is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at your + option) any later version. + + GAS, GDB, and GNU binutils are distributed in the hope that they will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _CR16_H_ +#define _CR16_H_ + +/* CR16 core Registers : + The enums are used as indices to CR16 registers table (cr16_regtab). + Therefore, order MUST be preserved. */ + +typedef enum + { + /* 16-bit general purpose registers. */ + r0, r1, r2, r3, + r4, r5, r6, r7, + r8, r9, r10, r11, + r12_L = 12, r13_L = 13, ra = 14, sp_L = 15, + + /* 32-bit general purpose registers. */ + r12 = 12, r13 = 13, r14 = 14, r15 = 15, + era = 14, sp = 15, RA, + + /* Not a register. */ + nullregister, + MAX_REG + } +reg; + +/* CR16 processor registers and special registers : + The enums are used as indices to CR16 processor registers table + (cr16_pregtab). Therefore, order MUST be preserved. */ + +typedef enum + { + /* processor registers. */ + dbs = MAX_REG, + dsr, dcrl, dcrh, + car0l, car0h, car1l, car1h, + cfg, psr, intbasel, intbaseh, + ispl, isph, uspl, usph, + dcr = dcrl, + car0 = car0l, + car1 = car1l, + intbase = intbasel, + isp = ispl, + usp = uspl, + /* Not a processor register. */ + nullpregister = usph + 1, + MAX_PREG + } +preg; + +/* CR16 Register types. */ + +typedef enum + { + CR16_R_REGTYPE, /* r<N> */ + CR16_RP_REGTYPE, /* reg pair */ + CR16_P_REGTYPE /* Processor register */ + } +reg_type; + +/* CR16 argument types : + The argument types correspond to instructions operands + + Argument types : + r - register + rp - register pair + c - constant + i - immediate + idxr - index with register + idxrp - index with register pair + rbase - register base + rpbase - register pair base + pr - processor register */ + +typedef enum + { + arg_r, + arg_c, + arg_cr, + arg_crp, + arg_ic, + arg_icr, + arg_idxr, + arg_idxrp, + arg_rbase, + arg_rpbase, + arg_rp, + arg_pr, + arg_prp, + arg_cc, + arg_ra, + /* Not an argument. */ + nullargs + } +argtype; + +/* CR16 operand types:The operand types correspond to instructions operands.*/ + +typedef enum + { + dummy, + /* N-bit signed immediate. */ + imm3, imm4, imm5, imm6, imm16, imm20, imm32, + /* N-bit unsigned immediate. */ + uimm3, uimm3_1, uimm4, uimm4_1, uimm5, uimm16, uimm20, uimm32, + /* N-bit signed displacement. */ + disps5, disps17, disps25, + /* N-bit unsigned displacement. */ + dispe9, + /* N-bit absolute address. */ + abs20, abs24, + /* Register relative. */ + rra, rbase, rbase_disps20, rbase_dispe20, + /* Register pair relative. */ + rpbase_disps0, rpbase_dispe4, rpbase_disps4, rpbase_disps16, + rpbase_disps20, rpbase_dispe20, + /* Register index. */ + rindex7_abs20, rindex8_abs20, + /* Register pair index. */ + rpindex_disps0, rpindex_disps14, rpindex_disps20, + /* register. */ + regr, + /* register pair. */ + regp, + /* processor register. */ + pregr, + /* processor register 32 bit. */ + pregrp, + /* condition code - 4 bit. */ + cc, + /* Not an operand. */ + nulloperand, + /* Maximum supported operand. */ + MAX_OPRD + } +operand_type; + +/* CR16 instruction types. */ + +#define NO_TYPE_INS 0 +#define ARITH_INS 1 +#define LD_STOR_INS 2 +#define BRANCH_INS 3 +#define ARITH_BYTE_INS 4 +#define SHIFT_INS 5 +#define BRANCH_NEQ_INS 6 +#define LD_STOR_INS_INC 7 +#define STOR_IMM_INS 8 +#define CSTBIT_INS 9 + +/* Maximum value supported for instruction types. */ +#define CR16_INS_MAX (1 << 4) +/* Mask to record an instruction type. */ +#define CR16_INS_MASK (CR16_INS_MAX - 1) +/* Return instruction type, given instruction's attributes. */ +#define CR16_INS_TYPE(attr) ((attr) & CR16_INS_MASK) + +/* Indicates whether this instruction has a register list as parameter. */ +#define REG_LIST CR16_INS_MAX + +/* The operands in binary and assembly are placed in reverse order. + load - (REVERSE_MATCH)/store - (! REVERSE_MATCH). */ +#define REVERSE_MATCH (1 << 5) + +/* Printing formats, where the instruction prefix isn't consecutive. */ +#define FMT_1 (1 << 9) /* 0xF0F00000 */ +#define FMT_2 (1 << 10) /* 0xFFF0FF00 */ +#define FMT_3 (1 << 11) /* 0xFFF00F00 */ +#define FMT_4 (1 << 12) /* 0xFFF0F000 */ +#define FMT_5 (1 << 13) /* 0xFFF0FFF0 */ +#define FMT_CR16 (FMT_1 | FMT_2 | FMT_3 | FMT_4 | FMT_5) + +/* Indicates whether this instruction can be relaxed. */ +#define RELAXABLE (1 << 14) + +/* Indicates that instruction uses user registers (and not + general-purpose registers) as operands. */ +#define USER_REG (1 << 15) + + +/* Instruction shouldn't allow 'sp' usage. */ +#define NO_SP (1 << 17) + +/* Instruction shouldn't allow to push a register which is used as a rptr. */ +#define NO_RPTR (1 << 18) + +/* Maximum operands per instruction. */ +#define MAX_OPERANDS 5 +/* Maximum register name length. */ +#define MAX_REGNAME_LEN 10 +/* Maximum instruction length. */ +#define MAX_INST_LEN 256 + + +/* Values defined for the flags field of a struct operand_entry. */ + +/* Operand must be an unsigned number. */ +#define OP_UNSIGNED (1 << 0) +/* Operand must be a signed number. */ +#define OP_SIGNED (1 << 1) +/* Operand must be a negative number. */ +#define OP_NEG (1 << 2) +/* A special load/stor 4-bit unsigned displacement operand. */ +#define OP_DEC (1 << 3) +/* Operand must be an even number. */ +#define OP_EVEN (1 << 4) +/* Operand is shifted right. */ +#define OP_SHIFT (1 << 5) +/* Operand is shifted right and decremented. */ +#define OP_SHIFT_DEC (1 << 6) +/* Operand has reserved escape sequences. */ +#define OP_ESC (1 << 7) +/* Operand must be a ABS20 number. */ +#define OP_ABS20 (1 << 8) +/* Operand must be a ABS24 number. */ +#define OP_ABS24 (1 << 9) +/* Operand has reserved escape sequences type 1. */ +#define OP_ESC1 (1 << 10) + +/* Single operand description. */ + +typedef struct + { + /* Operand type. */ + operand_type op_type; + /* Operand location within the opcode. */ + unsigned int shift; + } +operand_desc; + +/* Instruction data structure used in instruction table. */ + +typedef struct + { + /* Name. */ + const char *mnemonic; + /* Size (in words). */ + unsigned int size; + /* Constant prefix (matched by the disassembler). */ + unsigned long match; /* ie opcode */ + /* Match size (in bits). */ + /* MASK: if( (i & match_bits) == match ) then match */ + int match_bits; + /* Attributes. */ + unsigned int flags; + /* Operands (always last, so unreferenced operands are initialized). */ + operand_desc operands[MAX_OPERANDS]; + } +inst; + +/* Data structure for a single instruction's arguments (Operands). */ + +typedef struct + { + /* Register or base register. */ + reg r; + /* Register pair register. */ + reg rp; + /* Index register. */ + reg i_r; + /* Processor register. */ + preg pr; + /* Processor register. 32 bit */ + preg prp; + /* Constant/immediate/absolute value. */ + long constant; + /* CC code. */ + unsigned int cc; + /* Scaled index mode. */ + unsigned int scale; + /* Argument type. */ + argtype type; + /* Size of the argument (in bits) required to represent. */ + int size; + /* The type of the expression. */ + unsigned char X_op; + } +argument; + +/* Internal structure to hold the various entities + corresponding to the current assembling instruction. */ + +typedef struct + { + /* Number of arguments. */ + int nargs; + /* The argument data structure for storing args (operands). */ + argument arg[MAX_OPERANDS]; +/* The following fields are required only by CR16-assembler. */ +#ifdef TC_CR16 + /* Expression used for setting the fixups (if any). */ + expressionS exp; + bfd_reloc_code_real_type rtype; +#endif /* TC_CR16 */ + /* Instruction size (in bytes). */ + int size; + } +ins; + +/* Structure to hold information about predefined operands. */ + +typedef struct + { + /* Size (in bits). */ + unsigned int bit_size; + /* Argument type. */ + argtype arg_type; + /* One bit syntax flags. */ + int flags; + } +operand_entry; + +/* Structure to hold trap handler information. */ + +typedef struct + { + /* Trap name. */ + char *name; + /* Index in dispatch table. */ + unsigned int entry; + } +trap_entry; + +/* Structure to hold information about predefined registers. */ + +typedef struct + { + /* Name (string representation). */ + char *name; + /* Value (enum representation). */ + union + { + /* Register. */ + reg reg_val; + /* processor register. */ + preg preg_val; + } value; + /* Register image. */ + int image; + /* Register type. */ + reg_type type; + } +reg_entry; + +/* CR16 opcode table. */ +extern const inst cr16_instruction[]; +extern const unsigned int cr16_num_opcodes; +#define NUMOPCODES cr16_num_opcodes + +/* CR16 operands table. */ +extern const operand_entry cr16_optab[]; + +/* CR16 registers table. */ +extern const reg_entry cr16_regtab[]; +extern const unsigned int cr16_num_regs; +#define NUMREGS cr16_num_regs + +/* CR16 register pair table. */ +extern const reg_entry cr16_regptab[]; +extern const unsigned int cr16_num_regps; +#define NUMREGPS cr16_num_regps + +/* CR16 processor registers table. */ +extern const reg_entry cr16_pregtab[]; +extern const unsigned int cr16_num_pregs; +#define NUMPREGS cr16_num_pregs + +/* CR16 processor registers - 32 bit table. */ +extern const reg_entry cr16_pregptab[]; +extern const unsigned int cr16_num_pregps; +#define NUMPREGPS cr16_num_pregps + +/* CR16 trap/interrupt table. */ +extern const trap_entry cr16_traps[]; +extern const unsigned int cr16_num_traps; +#define NUMTRAPS cr16_num_traps + +/* CR16 CC - codes bit table. */ +extern const char * cr16_b_cond_tab[]; +extern const unsigned int cr16_num_cc; +#define NUMCC cr16_num_cc; + + +/* Table of instructions with no operands. */ +extern const char * cr16_no_op_insn[]; + +/* Current instruction we're assembling. */ +extern const inst *instruction; + +/* A macro for representing the instruction "constant" opcode, that is, + the FIXED part of the instruction. The "constant" opcode is represented + as a 32-bit unsigned long, where OPC is expanded (by a left SHIFT) + over that range. */ +#define BIN(OPC,SHIFT) (OPC << SHIFT) + +/* Is the current instruction type is TYPE ? */ +#define IS_INSN_TYPE(TYPE) \ + (CR16_INS_TYPE (instruction->flags) == TYPE) + +/* Is the current instruction mnemonic is MNEMONIC ? */ +#define IS_INSN_MNEMONIC(MNEMONIC) \ + (strcmp (instruction->mnemonic, MNEMONIC) == 0) + +/* Does the current instruction has register list ? */ +#define INST_HAS_REG_LIST \ + (instruction->flags & REG_LIST) + + +/* Utility macros for string comparison. */ +#define streq(a, b) (strcmp (a, b) == 0) +#define strneq(a, b, c) (strncmp (a, b, c) == 0) + +/* Long long type handling. */ +/* Replace all appearances of 'long long int' with LONGLONG. */ +typedef long long int LONGLONG; +typedef unsigned long long ULONGLONG; + +#endif /* _CR16_H_ */ |