analysis_cr16.c

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// SPDX-FileCopyrightText: 2012-2013 pancake <pancake@nopcode.org>
// SPDX-FileCopyrightText: 2014 Fedor Sakharov <fedor.sakharov@gmail.com>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include <string.h>
#include <rz_types.h>
#include <rz_lib.h>
#include <rz_asm.h>
#include <rz_analysis.h>
#include <rz_util.h>
 
#include <cr16_disas.h>
 
static int cr16_op(RzAnalysis *analysis, RzAnalysisOp *op, ut64 addr,
    const ut8 *buf, int len, RzAnalysisOpMask mask) {
    int ret;
    struct cr16_cmd cmd;
 
    memset(&cmd, 0, sizeof(cmd));
 
    ret = op->size = cr16_decode_command(buf, &cmd, len);
 
    if (ret <= 0) {
        return ret;
    }
 
    op->addr = addr;
 
    switch (cmd.type) {
    case CR16_TYPE_MOV:
        op->type = RZ_ANALYSIS_OP_TYPE_MOV;
        break;
    case CR16_TYPE_ADD:
        op->type = RZ_ANALYSIS_OP_TYPE_ADD;
        break;
    case CR16_TYPE_MUL:
        op->type = RZ_ANALYSIS_OP_TYPE_MUL;
        break;
    case CR16_TYPE_SUB:
        op->type = RZ_ANALYSIS_OP_TYPE_SUB;
        break;
    case CR16_TYPE_CMP:
        op->type = RZ_ANALYSIS_OP_TYPE_CMP;
        break;
    case CR16_TYPE_BE:
    case CR16_TYPE_BNE:
        op->type = RZ_ANALYSIS_OP_TYPE_CJMP;
        break;
    case CR16_TYPE_AND:
        op->type = RZ_ANALYSIS_OP_TYPE_AND;
        break;
    case CR16_TYPE_OR:
        op->type = RZ_ANALYSIS_OP_TYPE_OR;
        break;
    case CR16_TYPE_SCOND:
        break;
    case CR16_TYPE_XOR:
        op->type = RZ_ANALYSIS_OP_TYPE_XOR;
        break;
    case CR16_TYPE_SHIFT:
        op->type = RZ_ANALYSIS_OP_TYPE_SHR;
        break;
    case CR16_TYPE_BIT:
        op->type = RZ_ANALYSIS_OP_TYPE_MOV;
        break;
    case CR16_TYPE_SLPR:
        op->type = RZ_ANALYSIS_OP_TYPE_MOV;
        break;
    case CR16_TYPE_BCOND:
        if (cmd.reladdr) {
            op->jump = addr + cmd.reladdr;
            op->fail = addr + 2;
        }
        op->type = RZ_ANALYSIS_OP_TYPE_CJMP;
        break;
    case CR16_TYPE_BR:
    case CR16_TYPE_BAL:
        op->type = RZ_ANALYSIS_OP_TYPE_UJMP;
        break;
    case CR16_TYPE_EXCP:
        op->type = RZ_ANALYSIS_OP_TYPE_SWI;
        break;
    case CR16_TYPE_JCOND:
    case CR16_TYPE_JAL:
    case CR16_TYPE_JUMP:
    case CR16_TYPE_JUMP_UNK:
        if (cmd.reladdr) {
            op->jump = addr + cmd.reladdr;
            op->fail = addr + 2;
        }
        op->type = RZ_ANALYSIS_OP_TYPE_JMP;
        break;
    case CR16_TYPE_RETX:
        op->type = RZ_ANALYSIS_OP_TYPE_RET;
        break;
    case CR16_TYPE_PUSH:
        op->type = RZ_ANALYSIS_OP_TYPE_PUSH;
        break;
    case CR16_TYPE_POP:
        op->type = RZ_ANALYSIS_OP_TYPE_POP;
        break;
    case CR16_TYPE_LOAD:
    case CR16_TYPE_DI:
    case CR16_TYPE_EI:
    case CR16_TYPE_STOR:
        op->type = RZ_ANALYSIS_OP_TYPE_MOV;
        break;
    case CR16_TYPE_NOP:
        op->type = RZ_ANALYSIS_OP_TYPE_NOP;
        break;
    case CR16_TYPE_WAIT:
    case CR16_TYPE_EWAIT:
        op->type = RZ_ANALYSIS_OP_TYPE_SWI;
        break;
    default:
        op->type = RZ_ANALYSIS_OP_TYPE_UNK;
    }
 
    return ret;
}
 
RzAnalysisPlugin rz_analysis_plugin_cr16 = {
    .name = "cr16",
    .desc = "CR16 code analysis plugin",
    .license = "LGPL3",
    .arch = "cr16",
    .bits = 16,
    .op = cr16_op,
};
 
#ifndef RZ_PLUGIN_INCORE
RZ_API RzLibStruct rizin_plugin = {
    .type = RZ_LIB_TYPE_ANALYSIS,
    .data = &rz_analysis_plugin_cr16,
    .version = RZ_VERSION
};
#endif