Add s390 support

include/opcode/s390.h

@@ -0,0 +1,130 @@
+/* s390.h -- Header file for S390 opcode table
+   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#ifndef S390_H
+#define S390_H
+
+/* List of instruction sets variations. */
+
+enum s390_opcode_arch_val
+  {
+    S390_OPCODE_ESA = 0,
+    S390_OPCODE_ESAME
+  };
+
+/* The opcode table is an array of struct s390_opcode.  */
+
+struct s390_opcode
+  {
+    /* The opcode name.  */
+    const char * name;
+
+    /* The opcode itself.  Those bits which will be filled in with
+       operands are zeroes.  */
+    unsigned char opcode[6];
+
+    /* The opcode mask.  This is used by the disassembler.  This is a
+       mask containing ones indicating those bits which must match the
+       opcode field, and zeroes indicating those bits which need not
+       match (and are presumably filled in by operands).  */
+    unsigned char mask[6];
+
+    /* The opcode length in bytes. */
+    int oplen;
+
+    /* An array of operand codes.  Each code is an index into the
+       operand table.  They appear in the order which the operands must
+       appear in assembly code, and are terminated by a zero.  */
+    unsigned char operands[6];
+
+    /* Bitmask of architectures this opcode is available for.  */
+    unsigned int architecture;
+  };
+
+/* The table itself is sorted by major opcode number, and is otherwise
+   in the order in which the disassembler should consider
+   instructions.  */
+extern const struct s390_opcode s390_opcodes[];
+extern const int                s390_num_opcodes;
+
+/* A opcode format table for the .insn pseudo mnemonic.  */
+extern const struct s390_opcode s390_opformats[];
+extern const int                s390_num_opformats;
+
+/* Values defined for the flags field of a struct powerpc_opcode.  */
+
+/* The operands table is an array of struct s390_operand.  */
+
+struct s390_operand
+  {
+    /* The number of bits in the operand.  */
+    int bits;
+
+    /* How far the operand is left shifted in the instruction.  */
+    int shift;
+
+    /* One bit syntax flags.  */
+    unsigned long flags;
+  };
+
+/* Elements in the table are retrieved by indexing with values from
+   the operands field of the powerpc_opcodes table.  */
+
+extern const struct s390_operand s390_operands[];
+
+/* Values defined for the flags field of a struct s390_operand.  */
+
+/* This operand names a register.  The disassembler uses this to print
+   register names with a leading 'r'.  */
+#define S390_OPERAND_GPR 0x1
+
+/* This operand names a floating point register.  The disassembler
+   prints these with a leading 'f'. */
+#define S390_OPERAND_FPR 0x2
+
+/* This operand names an access register.  The disassembler
+   prints these with a leading 'a'.  */
+#define S390_OPERAND_AR 0x4
+
+/* This operand names a control register.  The disassembler
+   prints these with a leading 'c'.  */
+#define S390_OPERAND_CR 0x8
+
+/* This operand is a displacement.  */
+#define S390_OPERAND_DISP 0x10
+
+/* This operand names a base register.  */
+#define S390_OPERAND_BASE 0x20
+
+/* This operand names an index register, it can be skipped.  */
+#define S390_OPERAND_INDEX 0x40
+
+/* This operand is a relative branch displacement.  The disassembler
+   prints these symbolically if possible.  */
+#define S390_OPERAND_PCREL 0x80
+
+/* This operand takes signed values.  */
+#define S390_OPERAND_SIGNED 0x100
+
+/* This operand is a length.  */
+#define S390_OPERAND_LENGTH 0x200
+
+#endif /* S390_H */