/* bfin-defs.h ADI Blackfin gas header file Copyright 2005, 2006 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. GAS 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 is distributed in the hope that it 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 GAS; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef BFIN_PARSE_H #define BFIN_PARSE_H #define PCREL 1 #define CODE_FRAG_SIZE 4096 /* 1 page. */ /* Definition for all status bits. */ typedef enum { c_0, c_1, c_4, c_2, c_uimm2, c_uimm3, c_imm3, c_pcrel4, c_imm4, c_uimm4s4, c_uimm4, c_uimm4s2, c_negimm5s4, c_imm5, c_uimm5, c_imm6, c_imm7, c_imm8, c_uimm8, c_pcrel8, c_uimm8s4, c_pcrel8s4, c_lppcrel10, c_pcrel10, c_pcrel12, c_imm16s4, c_luimm16, c_imm16, c_huimm16, c_rimm16, c_imm16s2, c_uimm16s4, c_uimm16, c_pcrel24 } const_forms_t; /* High-Nibble: group code, low nibble: register code. */ #define T_REG_R 0x00 #define T_REG_P 0x10 #define T_REG_I 0x20 #define T_REG_B 0x30 #define T_REG_L 0x34 #define T_REG_M 0x24 #define T_REG_A 0x40 /* All registers above this value don't belong to a usuable register group. */ #define T_NOGROUP 0xa0 /* Flags. */ #define F_REG_ALL 0x1000 #define F_REG_HIGH 0x2000 /* Half register: high half. */ enum machine_registers { REG_R0 = T_REG_R, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7, REG_P0 = T_REG_P, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP, REG_I0 = T_REG_I, REG_I1, REG_I2, REG_I3, REG_M0 = T_REG_M, REG_M1, REG_M2, REG_M3, REG_B0 = T_REG_B, REG_B1, REG_B2, REG_B3, REG_L0 = T_REG_L, REG_L1, REG_L2, REG_L3, REG_A0x = T_REG_A, REG_A0w, REG_A1x, REG_A1w, REG_ASTAT = 0x46, REG_RETS = 0x47, REG_LC0 = 0x60, REG_LT0, REG_LB0, REG_LC1, REG_LT1, REG_LB1, REG_CYCLES, REG_CYCLES2, REG_USP = 0x70, REG_SEQSTAT, REG_SYSCFG, REG_RETI, REG_RETX, REG_RETN, REG_RETE, REG_EMUDAT, /* These don't have groups. */ REG_sftreset = T_NOGROUP, REG_omode, REG_excause, REG_emucause, REG_idle_req, REG_hwerrcause, REG_A0 = 0xc0, REG_A1, REG_CC, /* Pseudo registers, used only for distinction from symbols. */ REG_RL0, REG_RL1, REG_RL2, REG_RL3, REG_RL4, REG_RL5, REG_RL6, REG_RL7, REG_RH0, REG_RH1, REG_RH2, REG_RH3, REG_RH4, REG_RH5, REG_RH6, REG_RH7, REG_LASTREG }; /* Status register flags. */ enum statusflags { S_AZ = 0, S_AN, S_AQ = 6, S_AC0 = 12, S_AC1, S_AV0 = 16, S_AV0S, S_AV1, S_AV1S, S_V = 24, S_VS = 25 }; enum reg_class { rc_dregs_lo, rc_dregs_hi, rc_dregs, rc_dregs_pair, rc_pregs, rc_spfp, rc_dregs_hilo, rc_accum_ext, rc_accum_word, rc_accum, rc_iregs, rc_mregs, rc_bregs, rc_lregs, rc_dpregs, rc_gregs, rc_regs, rc_statbits, rc_ignore_bits, rc_ccstat, rc_counters, rc_dregs2_sysregs1, rc_open, rc_sysregs2, rc_sysregs3, rc_allregs, LIM_REG_CLASSES }; /* mmod field. */ #define M_S2RND 1 #define M_T 2 #define M_W32 3 #define M_FU 4 #define M_TFU 6 #define M_IS 8 #define M_ISS2 9 #define M_IH 11 #define M_IU 12 /* Register type checking macros. */ #define CODE_MASK 0x07 #define CLASS_MASK 0xf0 #define REG_SAME(a, b) ((a).regno == (b).regno) #define REG_EQUAL(a, b) (((a).regno & CODE_MASK) == ((b).regno & CODE_MASK)) #define REG_CLASS(a) ((a.regno) & 0xf0) #define IS_A1(a) ((a).regno == REG_A1) #define IS_H(a) ((a).regno & F_REG_HIGH ? 1: 0) #define IS_EVEN(r) (r.regno % 2 == 0) #define IS_HCOMPL(a, b) (REG_EQUAL(a, b) && \ ((a).regno & F_REG_HIGH) != ((b).regno & F_REG_HIGH)) /* register type checking. */ #define _TYPECHECK(r, x) (((r).regno & CLASS_MASK) == T_REG_##x) #define IS_DREG(r) _TYPECHECK(r, R) #define IS_DREG_H(r) (_TYPECHECK(r, R) && IS_H(r)) #define IS_DREG_L(r) (_TYPECHECK(r, R) && !IS_H(r)) #define IS_PREG(r) _TYPECHECK(r, P) #define IS_IREG(r) (((r).regno & 0xf4) == T_REG_I) #define IS_MREG(r) (((r).regno & 0xf4) == T_REG_M) #define IS_BREG(r) (((r).regno & 0xf4) == T_REG_B) #define IS_LREG(r) (((r).regno & 0xf4) == T_REG_L) #define IS_CREG(r) ((r).regno == REG_LC0 || (r).regno == REG_LC1) #define IS_ALLREG(r) ((r).regno < T_NOGROUP) /* Expression value macros. */ typedef enum { ones_compl, twos_compl, mult, divide, mod, add, sub, lsh, rsh, logand, logior, logxor } expr_opcodes_t; struct expressionS; #define SYMBOL_T symbolS* struct expression_cell { int value; SYMBOL_T symbol; }; /* User Type Definitions. */ struct bfin_insn { unsigned long value; struct bfin_insn *next; struct expression_cell *exp; int pcrel; int reloc; }; #define INSTR_T struct bfin_insn* #define EXPR_T struct expression_cell* typedef struct expr_node_struct Expr_Node; extern INSTR_T gencode (unsigned long x); extern INSTR_T conscode (INSTR_T head, INSTR_T tail); extern INSTR_T conctcode (INSTR_T head, INSTR_T tail); extern INSTR_T note_reloc (INSTR_T code, Expr_Node *, int reloc,int pcrel); extern INSTR_T note_reloc1 (INSTR_T code, const char * sym, int reloc, int pcrel); extern INSTR_T note_reloc2 (INSTR_T code, const char *symbol, int reloc, int value, int pcrel); /* Types of expressions. */ typedef enum { Expr_Node_Binop, /* Binary operator. */ Expr_Node_Unop, /* Unary operator. */ Expr_Node_Reloc, /* Symbol to be relocated. */ Expr_Node_GOT_Reloc, /* Symbol to be relocated using the GOT. */ Expr_Node_Constant /* Constant. */ } Expr_Node_Type; /* Types of operators. */ typedef enum { Expr_Op_Type_Add, Expr_Op_Type_Sub, Expr_Op_Type_Mult, Expr_Op_Type_Div, Expr_Op_Type_Mod, Expr_Op_Type_Lshift, Expr_Op_Type_Rshift, Expr_Op_Type_BAND, /* Bitwise AND. */ Expr_Op_Type_BOR, /* Bitwise OR. */ Expr_Op_Type_BXOR, /* Bitwise exclusive OR. */ Expr_Op_Type_LAND, /* Logical AND. */ Expr_Op_Type_LOR, /* Logical OR. */ Expr_Op_Type_NEG, Expr_Op_Type_COMP /* Complement. */ } Expr_Op_Type; /* The value that can be stored ... depends on type. */ typedef union { const char *s_value; /* if relocation symbol, the text. */ int i_value; /* if constant, the value. */ Expr_Op_Type op_value; /* if operator, the value. */ } Expr_Node_Value; /* The expression node. */ struct expr_node_struct { Expr_Node_Type type; Expr_Node_Value value; Expr_Node *Left_Child; Expr_Node *Right_Child; }; /* Operations on the expression node. */ Expr_Node *Expr_Node_Create (Expr_Node_Type type, Expr_Node_Value value, Expr_Node *Left_Child, Expr_Node *Right_Child); /* Generate the reloc structure as a series of instructions. */ INSTR_T Expr_Node_Gen_Reloc (Expr_Node *head, int parent_reloc); #define MKREF(x) mkexpr (0,x) #define ALLOCATE(x) malloc (x) #define NULL_CODE ((INSTR_T) 0) #ifndef EXPR_VALUE #define EXPR_VALUE(x) (((x)->type == Expr_Node_Constant) ? ((x)->value.i_value) : 0) #endif #ifndef EXPR_SYMBOL #define EXPR_SYMBOL(x) ((x)->symbol) #endif typedef long reg_t; typedef struct _register { reg_t regno; /* Register ID as defined in machine_registers. */ int flags; } Register; typedef struct _macfunc { char n; char op; char w; char P; Register dst; Register s0; Register s1; } Macfunc; typedef struct _opt_mode { int MM; int mod; } Opt_mode; typedef enum { SEMANTIC_ERROR, NO_INSN_GENERATED, INSN_GENERATED } parse_state; #ifdef __cplusplus extern "C" { #endif extern int debug_codeselection; void error (char *format, ...); void warn (char *format, ...); int semantic_error (char *syntax); void semantic_error_2 (char *syntax); EXPR_T mkexpr (int, SYMBOL_T); /* Defined in bfin-lex.l. */ void set_start_state (void); #ifdef __cplusplus } #endif #endif /* BFIN_PARSE_H */