cstool_m68k.c

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//
//  cstool_m68k.c
//  
//
//  Created by YUHANG TANG on 26/10/16.
//
//
 
#include <stdio.h>
#include <capstone/capstone.h>
 
void print_string_hex(char *comment, unsigned char *str, size_t len);
 
static const char* s_addressing_modes[] = {
    "<invalid mode>",
 
    "Register Direct - Data",
    "Register Direct - Address",
 
    "Register Indirect - Address",
    "Register Indirect - Address with Postincrement",
    "Register Indirect - Address with Predecrement",
    "Register Indirect - Address with Displacement",
 
    "Address Register Indirect With Index - 8-bit displacement",
    "Address Register Indirect With Index - Base displacement",
 
    "Memory indirect - Postindex",
    "Memory indirect - Preindex",
 
    "Program Counter Indirect - with Displacement",
 
    "Program Counter Indirect with Index - with 8-Bit Displacement",
    "Program Counter Indirect with Index - with Base Displacement",
 
    "Program Counter Memory Indirect - Postindexed",
    "Program Counter Memory Indirect - Preindexed",
 
    "Absolute Data Addressing  - Short",
    "Absolute Data Addressing  - Long",
    "Immediate value",
};
 
static void print_read_write_regs(cs_detail* detail, csh handle)
{
    int i;
 
    for (i = 0; i < detail->regs_read_count; ++i) {
        uint16_t reg_id = detail->regs_read[i];
        const char* reg_name = cs_reg_name(handle, reg_id);
        printf("\treading from reg: %s\n", reg_name);
    }
 
    for (i = 0; i < detail->regs_write_count; ++i) {
        uint16_t reg_id = detail->regs_write[i];
        const char* reg_name = cs_reg_name(handle, reg_id);
        printf("\twriting to reg:   %s\n", reg_name);
    }
}
 
void print_insn_detail_m68k(csh handle, cs_insn *ins)
{
    cs_m68k* m68k;
    cs_detail* detail;
    int i;
 
    // detail can be NULL on "data" instruction if SKIPDATA option is turned ON
    if (ins->detail == NULL)
        return;
 
    detail = ins->detail;
    m68k = &detail->m68k;
    if (m68k->op_count)
        printf("\top_count: %u\n", m68k->op_count);
 
    print_read_write_regs(detail, handle);
 
    printf("\tgroups_count: %u\n", detail->groups_count);
 
    for (i = 0; i < m68k->op_count; i++) {
        cs_m68k_op* op = &(m68k->operands[i]);
 
        switch((int)op->type) {
            default:
                break;
            case M68K_OP_REG:
                printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg));
                break;
            case M68K_OP_IMM:
                printf("\t\toperands[%u].type: IMM = 0x%x\n", i, (int)op->imm);
                break;
            case M68K_OP_MEM:
                printf("\t\toperands[%u].type: MEM\n", i);
                if (op->mem.base_reg != M68K_REG_INVALID)
                    printf("\t\t\toperands[%u].mem.base: REG = %s\n",
                            i, cs_reg_name(handle, op->mem.base_reg));
                if (op->mem.index_reg != M68K_REG_INVALID) {
                    printf("\t\t\toperands[%u].mem.index: REG = %s\n",
                            i, cs_reg_name(handle, op->mem.index_reg));
                    printf("\t\t\toperands[%u].mem.index: size = %c\n",
                            i, op->mem.index_size ? 'l' : 'w');
                }
                if (op->mem.disp != 0)
                    printf("\t\t\toperands[%u].mem.disp: 0x%x\n", i, op->mem.disp);
                if (op->mem.scale != 0)
                    printf("\t\t\toperands[%u].mem.scale: %d\n", i, op->mem.scale);
 
                printf("\t\taddress mode: %s\n", s_addressing_modes[op->address_mode]);
                break;
            case M68K_OP_FP_SINGLE:
                printf("\t\toperands[%u].type: FP_SINGLE\n", i);
                printf("\t\t\toperands[%u].simm: %f\n", i, op->simm);
                break;
            case M68K_OP_FP_DOUBLE:
                printf("\t\toperands[%u].type: FP_DOUBLE\n", i);
                printf("\t\t\toperands[%u].dimm: %lf\n", i, op->dimm);
                break;
        }
    }
}