Expression examples: Rename examples with meaningfull names

1 files changed, 67 insertions, 0 deletions

diff --git a/example/expression/asm_to_ir.py b/example/expression/asm_to_ir.py
new file mode 100644
index 00000000..b5fe0ec5
--- /dev/null
+++ b/example/expression/asm_to_ir.py
@@ -0,0 +1,67 @@
+from miasm2.core.cpu import parse_ast, ast_id2expr
+from miasm2.arch.x86.arch import mn_x86, base_expr
+from miasm2.core import parse_asm
+from miasm2.expression.expression import *
+from miasm2.core import asmbloc
+from miasm2.arch.x86.ira import ir_a_x86_32
+from pdb import pm
+
+
+def my_ast_int2expr(a):
+    return ExprInt32(a)
+
+my_var_parser = parse_ast(ast_id2expr, my_ast_int2expr)
+base_expr.setParseAction(my_var_parser)
+
+
+# First, asm code
+blocs, symbol_pool = parse_asm.parse_txt(mn_x86, 32, '''
+main:
+   MOV    EAX, 1
+   MOV    EBX, 2
+   MOV    ECX, 2
+   MOV    DX, 2
+
+loop:
+   INC    EBX
+   CMOVZ  EAX, EBX
+   ADD    EAX, ECX
+   JZ     loop
+   RET
+''')
+
+blocs = blocs[0]
+
+symbol_pool.set_offset(symbol_pool.getby_name("main"), 0x0)
+for b in blocs:
+    print b
+
+
+print "symbols:"
+print symbol_pool
+resolved_b, patches = asmbloc.asm_resolve_final(mn_x86, 32, blocs, symbol_pool)
+
+# Translate to IR
+ir_arch = ir_a_x86_32(symbol_pool)
+for b in blocs:
+    print 'add bloc'
+    print b
+    ir_arch.add_bloc(b)
+
+# Display IR
+for lbl, b in ir_arch.blocs.items():
+    print b
+
+# Dead propagation
+ir_arch.gen_graph()
+out = ir_arch.graph()
+open('graph.txt', 'w').write(out)
+print '*' * 80
+ir_arch.dead_simp()
+out2 = ir_arch.graph()
+open('graph2.txt', 'w').write(out2)
+
+# Display new IR
+print 'new ir blocs'
+for lbl, b in ir_arch.blocs.items():
+    print b