dis.h

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// SPDX-FileCopyrightText: 2007 sorbo
// SPDX-FileCopyrightText: 2010-2019 pancake <pancake@nopcode.org>
// SPDX-License-Identifier: LGPL-3.0-only
 
#ifndef _INCLUDE_XAP_DIS_H_
#define _INCLUDE_XAP_DIS_H_
 
#include <rz_types.h>
 
#define __packed __attribute__((__packed__))
 
struct instruction {
    ut16 in_mode : 2,
        in_reg : 2,
        in_opcode : 4,
        in_operand : 8;
#if __sun || defined(_MSC_VER)
#ifndef _MSC_VER
#warning XXX related to sunstudio :O
#endif
};
#else
} __packed;
#endif
 
struct directive {
    struct instruction d_inst;
    int d_operand;
    int d_prefix;
    unsigned int d_off;
    char d_asm[128];
    struct directive *d_next;
};
 
struct label {
    char l_name[128];
    unsigned int l_off;
    struct directive *l_refs[666];
    int l_refc;
    struct label *l_next;
};
 
struct state {
    int s_prefix;
    unsigned int s_prefix_val;
    FILE *s_in;
    unsigned int s_off;
    char *s_fname;
    int s_u;
    unsigned int s_labelno;
    const unsigned char *s_buf;
    struct directive s_dirs;
    struct label s_labels;
    FILE *s_out;
    int s_format;
    int s_nop;
    struct directive *s_nopd;
    int s_ff_quirk;
};
 
#define MODE_MASK     3
#define REG_SHIFT     2
#define REG_MASK      3
#define OPCODE_SHIFT  4
#define OPCODE_MASK   0xF
#define OPERAND_SHIFT 8
 
#define INST_NOP   0x0000
#define INST_BRK   0x0004
#define INST_SLEEP 0x0008
#define INST_U     0x0009
#define INST_SIF   0x000C
#define INST_RTS   0x00E2
#define INST_BRXL  0xfe09
#define INST_BC    0xff09
 
#define REG_AH 0
#define REG_AL 1
#define REG_X  2
#define REG_Y  3
 
#define DATA_MODE_IMMEDIATE 0
#define DATA_MODE_DIRECT    1
#define DATA_MODE_INDEXED_X 2
#define DATA_MODE_INDEXED_Y 3
 
#define ADDR_MODE_RELATIVE   0
#define ADDR_MODE_X_RELATIVE 2
 
static void xap_decode(struct state *s, struct directive *d);
 
#endif