* Makefile.am: Bfin support.

	* Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
	* configure: Regenerated.
	* configure.in: Bfin support.
	* configure.tgt: Bfin support.
	* config/bfin-aux.h: New file.
	* config/bfin-defs.h: New file.
	* config/bfin-lex.l: New file.
	* config/bfin-parse.y: New file.
	* config/tc-bfin.c: New file.
	* config/tc-bfin.h: New file.
	* doc/Makefile.am: Recognize c-bfin.texi.
	* doc/Makefile.in: Regenerated.
	* doc/all.texi: Bfin support.
	* doc/as.texinfo: Likewise.
	* doc/c-bfin.texi: Document bfin-specific syntax and
	directives.

1 files changed, 383 insertions, 0 deletions

diff --git a/gas/config/bfin-defs.h b/gas/config/bfin-defs.h
new file mode 100644
index 0000000000..221e8c40c8
--- /dev/null
+++ b/gas/config/bfin-defs.h
@@ -0,0 +1,383 @@
+/* bfin-defs.h ADI Blackfin gas header file
+   Copyright 2005
+   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  
+
+#include <bfd.h>
+#include "as.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_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_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);
+
+extern void bfin_equals (Expr_Node *sym);
+/* Defined in bfin-lex.l.  */
+void set_start_state (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* BFIN_PARSE_H */
+