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/* xgate.h -- Freescale XGATE opcode list
Copyright 2010, 2011, 2012 Free Software Foundation, Inc.
Written by Sean Keys (skeys@ipdatasys.com)
This file is part of the GNU opcodes library.
This library 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 3, or (at your option)
any later version.
It 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 file; see the file COPYING. If not, write to the
Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef _OPCODE_XGATE_H
#define _OPCODE_XGATE_H
/* XGATE CCR flag definitions. */
#define XGATE_N_BIT 0x08 /* XGN - Sign Flag */
#define XGATE_Z_BIT 0x04 /* XGZ - Zero Flag */
#define XGATE_V_BIT 0x02 /* XGV - Overflow Flag */
#define XGATE_C_BIT 0x01 /* XGC - Carry Flag */
/* Access Detail Notation
V — Vector fetch: always an aligned word read, lasts for at least one RISC core cycle
P — Program word fetch: always an aligned word read, lasts for at least one RISC core cycle
r — 8-bit data read: lasts for at least one RISC core cycle
R — 16-bit data read: lasts for at least one RISC core cycle
w — 8-bit data write: lasts for at least one RISC core cycle
W — 16-bit data write: lasts for at least one RISC core cycle
A — Alignment cycle: no read or write, lasts for zero or one RISC core cycles
f — Free cycle: no read or write, lasts for one RISC core cycles. */
#define XGATE_CYCLE_V 0x01
#define XGATE_CYCLE_P 0x02
#define XGATE_CYCLE_r 0x04
#define XGATE_CYCLE_R 0x08
#define XGATE_CYCLE_w 0x10
#define XGATE_CYCLE_W 0x20
#define XGATE_CYCLE_A 0x40
#define XGATE_CYCLE_f 0x80
/* Opcode format abbreviations. */
#define XG_INH 0x0001 /* Inherent. */
#define XG_I 0x0002 /* 3-bit immediate address. */
#define XG_R_I 0x0004 /* Register followed by 4/8-bit immediate value. */
#define XG_R_R 0x0008 /* Register followed by a register. */
#define XG_R_R_R 0x0010 /* Register followed by two registers. */
#define XG_R 0x0020 /* Single register. */
#define XG_PC 0x0040 /* PC relative 10 or 11 bit. */
#define XG_R_C 0x0080 /* General register followed by ccr register. */
#define XG_C_R 0x0100 /* CCR register followed by a general register. */
#define XG_R_P 0x0200 /* General register followed by pc register. */
#define XG_R_R_I 0x0400 /* Two general registers followed by an immediate value. */
#define XG_PCREL 0x0800 /* Immediate value that is relative to the current pc. */
/* XGATE operand formats as stored in the XGATE_opcode table.
They are only used by GAS to recognize operands. */
#define XGATE_OP_INH ""
#define XGATE_OP_TRI "r,r,r"
#define XGATE_OP_DYA "r,r"
#define XGATE_OP_IMM16 "r,if"
#define XGATE_OP_IMM8 "r,i8"
#define XGATE_OP_IMM4 "r,i4"
#define XGATE_OP_IMM3 "i3"
#define XGATE_OP_MON "r"
#define XGATE_OP_MON_R_C "r,c"
#define XGATE_OP_MON_C_R "c,r"
#define XGATE_OP_MON_R_P "r,p"
#define XGATE_OP_IDR "r,r,+"
#define XGATE_OP_IDO5 "r,r,i5"
#define XGATE_OP_REL9 "b9"
#define XGATE_OP_REL10 "ba"
#define XGATE_OP_DYA_MON "=r"
/* Macro definitions. */
#define XGATE_OP_IMM16mADD "r,if; addl addh"
#define XGATE_OP_IMM16mAND "r,if; andl andh"
#define XGATE_OP_IMM16mCPC "r,if; cmpl cpch"
#define XGATE_OP_IMM16mSUB "r,if; subl subh"
#define XGATE_OP_IMM16mLDW "r,if; ldl ldh"
/* CPU variant identification. */
#define XGATE_V1 0x1
#define XGATE_V2 0x2
#define XGATE_V3 0x4
/* Max opcodes per opcode handle. */
#define MAX_OPCODES 0x05
#define MAX_DETECT_CHARS 0x10
/* The opcode table definitions. */
struct xgate_opcode
{
char * name; /* Op-code name. */
char * constraints; /* Constraint chars. */
char * format; /* Bit definitions. */
unsigned int sh_format; /* Shorthand format mask. */
unsigned int size; /* Opcode size in bytes. */
unsigned int bin_opcode; /* Binary opcode with operands masked off. */
unsigned char cycles_min; /* Minimum cpu cycles needed. */
unsigned char cycles_max; /* Maximum cpu cycles needed. */
unsigned char set_flags_mask; /* CCR flags set. */
unsigned char clr_flags_mask; /* CCR flags cleared. */
unsigned char chg_flags_mask; /* CCR flags changed. */
unsigned char arch; /* CPU variant. */
};
/* The opcode table. The table contains all the opcodes (all pages).
You can't rely on the order. */
extern const struct xgate_opcode xgate_opcodes[];
extern const int xgate_num_opcodes;
#endif /* _OPCODE_XGATE_H */
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