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123 lines
2.3 KiB
C
123 lines
2.3 KiB
C
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/* radare - LGPL - Copyright 2012-2013 - pancake
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2014 - Fedor Sakharov <fedor.sakharov@gmail.com> */
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#include <string.h>
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#include <r_types.h>
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#include <r_lib.h>
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#include <r_asm.h>
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#include <r_anal.h>
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#include <r_util.h>
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#include <propeller_disas.h>
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static int propeller_op(RAnal *anal, RAnalOp *op, ut64 addr,
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const ut8 *buf, int len)
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{
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int ret;
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struct propeller_cmd cmd;
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memset (&cmd, 0, sizeof (cmd));
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memset (op, 0, sizeof (RAnalOp));
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ret = op->size = propeller_decode_command (buf, &cmd);
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if (ret < 0) {
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return ret;
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}
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op->addr = addr;
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op->jump = op->fail = UT64_MAX;
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op->ptr = op->val = -1;
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switch (cmd.opcode) {
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case PROP_TEST:
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case PROP_TESTN:
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case PROP_TJNZ:
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case PROP_TJZ:
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case PROP_CMPS:
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case PROP_CMPSUB:
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op->type = R_ANAL_OP_TYPE_CMP;
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break;
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case PROP_ADD:
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case PROP_ADDX:
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case PROP_ADDABS:
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op->type = R_ANAL_OP_TYPE_ADD;
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break;
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case PROP_OR:
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op->type = R_ANAL_OP_TYPE_OR;
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break;
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case PROP_RCL:
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case PROP_ROL:
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case PROP_SHL:
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op->type = R_ANAL_OP_TYPE_ROL;
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break;
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case PROP_RCR:
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case PROP_ROR:
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case PROP_SHR:
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op->type = R_ANAL_OP_TYPE_ROR;
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break;
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case PROP_NEG:
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op->type = R_ANAL_OP_TYPE_AND;
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break;
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case PROP_XOR:
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op->type = R_ANAL_OP_TYPE_XOR;
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break;
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case PROP_ABS:
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case PROP_MINS:
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case PROP_MIN:
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case PROP_MAX:
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case PROP_MAXS:
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case PROP_RDBYTE:
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case PROP_RDLONG:
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case PROP_RDWORD:
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case PROP_MOV:
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case PROP_MOVD:
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case PROP_MOVI:
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case PROP_MOVS:
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case PROP_WAITVID:
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case PROP_MUXC:
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if (cmd.opcode == PROP_MOV && cmd.dst == 0x44 && cmd.src == 0x3c) {
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op->type = R_ANAL_OP_TYPE_RET;
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} else {
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op->type = R_ANAL_OP_TYPE_MOV;
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}
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break;
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case PROP_SUB:
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op->type = R_ANAL_OP_TYPE_SUB;
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break;
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case PROP_JMP:
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case PROP_DJNZ:
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if (cmd.immed == 0) {
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op->type = R_ANAL_OP_TYPE_CJMP;
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op->jump = 0x20 + cmd.src;
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op->fail = addr + 2;
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} else {
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op->type = R_ANAL_OP_TYPE_UJMP;
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op->fail = addr + 2;
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}
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break;
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default:
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op->type = R_ANAL_OP_TYPE_UNK;
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break;
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}
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return ret;
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}
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struct r_anal_plugin_t r_anal_plugin_propeller = {
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.name = "propeller",
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.desc = "Parallax propeller code analysis plugin",
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.license = "LGPL3",
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.arch = R_SYS_ARCH_PROPELLER,
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.bits = 32,
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.init = NULL,
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.fini = NULL,
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.op = propeller_op,
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.set_reg_profile = NULL,
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.fingerprint_bb = NULL,
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.fingerprint_fcn = NULL,
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.diff_bb = NULL,
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.diff_fcn = NULL,
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.diff_eval = NULL,
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};
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