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100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
#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 <msp430_disas.h>
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static int msp430_op(RAnal *anal, RAnalOp *op, ut64 addr, const ut8 *buf, int len, RAnalOpMask mask) {
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int ret;
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struct msp430_cmd cmd;
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memset (&cmd, 0, sizeof (cmd));
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memset (op, 0, sizeof (RAnalOp));
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//op->id = ???;
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op->size = -1;
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op->nopcode = 1;
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op->jump = -1;
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op->fail = -1;
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op->ptr = -1;
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op->val = -1;
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op->type = R_ANAL_OP_TYPE_UNK;
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op->family = R_ANAL_OP_FAMILY_CPU;
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ret = op->size = msp430_decode_command (buf, len, &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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switch (cmd.type) {
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case MSP430_ONEOP:
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switch (cmd.opcode) {
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case MSP430_RRA:
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case MSP430_RRC:
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op->type = R_ANAL_OP_TYPE_ROR; break;
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case MSP430_PUSH:
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op->type = R_ANAL_OP_TYPE_PUSH; break;
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case MSP430_CALL:
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op->type = R_ANAL_OP_TYPE_CALL;
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op->fail = addr + op->size;
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op->jump = r_read_at_le16 (buf, 2);
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break;
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case MSP430_RETI:
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op->type = R_ANAL_OP_TYPE_RET; break;
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}
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break;
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case MSP430_TWOOP:
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switch (cmd.opcode) {
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case MSP430_BIT:
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case MSP430_BIC:
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case MSP430_BIS:
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case MSP430_MOV:
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op->type = R_ANAL_OP_TYPE_MOV;
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if ((cmd.instr)[0] == 'b' && (cmd.instr)[1] == 'r') {
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// Emulated branch instruction, moves source operand to PC register.
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op->type = R_ANAL_OP_TYPE_UJMP;
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}
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break;
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case MSP430_DADD:
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case MSP430_ADDC:
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case MSP430_ADD: op->type = R_ANAL_OP_TYPE_ADD; break;
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case MSP430_SUBC:
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case MSP430_SUB: op->type = R_ANAL_OP_TYPE_SUB; break;
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case MSP430_CMP: op->type = R_ANAL_OP_TYPE_CMP; break;
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case MSP430_XOR: op->type = R_ANAL_OP_TYPE_XOR; break;
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case MSP430_AND: op->type = R_ANAL_OP_TYPE_AND; break;
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}
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break;
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case MSP430_JUMP:
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if (cmd.jmp_cond == MSP430_JMP) {
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op->type = R_ANAL_OP_TYPE_JMP;
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} else {
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op->type = R_ANAL_OP_TYPE_CJMP;
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}
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op->jump = addr + cmd.jmp_addr;
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op->fail = addr + 2;
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break;
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case MSP430_INV:
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op->type = R_ANAL_OP_TYPE_ILL;
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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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}
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return ret;
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}
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RAnalPlugin r_anal_plugin_msp430 = {
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.name = "msp430",
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.desc = "TI MSP430 code analysis plugin",
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.license = "LGPL3",
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.arch = "msp430",
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.bits = 16,
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.op = msp430_op,
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};
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