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# Minimalist Symbol Exec example
from miasm2.core.bin_stream import bin_stream_str
from miasm2.arch.x86.arch import mn_x86
from miasm2.arch.x86.ira import ir_a_x86_32
from miasm2.arch.x86.regs import all_regs_ids, all_regs_ids_init
from miasm2.ir.symbexec import symbexec
from miasm2.arch.x86.disasm import dis_x86_32 as dis_engine
import miasm2.expression.expression as m2_expr
l = mn_x86.fromstring("MOV EAX, EBX", 32)
asm = mn_x86.asm(l)[0]
bin_stream = bin_stream_str(asm)
mdis = dis_engine(bin_stream)
disasm = mdis.dis_multibloc(0)
ir = ir_a_x86_32(mdis.symbol_pool)
for bbl in disasm: ir.add_bloc(bbl)
symbols_init = {}
for i, r in enumerate(all_regs_ids):
symbols_init[r] = all_regs_ids_init[i]
symb = symbexec(mn_x86, symbols_init)
block = ir.get_bloc(0)
cur_addr = symb.emulbloc(block)
assert(symb.symbols[m2_expr.ExprId("EAX")] == symbols_init[m2_expr.ExprId("EBX")])
print 'modified registers:'
symb.dump_id()
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