def emit(op):
global depth
# print depth, op
if op == "+":
x86.add_gv_ev(eax, reg(ebx))
pop_gv(ebx)
elif op == "-":
x86.sub_gv_ev(eax, reg(ebx))
pop_gv(eax)
x86.mov_gv_ev(ebx, reg(eax))
elif op == "*":
x86.imul_ev(reg(ebx))
pop_gv(ebx)
elif op == "/":
x86.idiv_ev(reg(ebx))
x86.mov_gv_iv(edx, 0)
pop_gv(eax)
x86.mov_gv_ev(ebx, reg(eax))
elif op == "%":
x86.mov_gv_ev(eax, reg(edx))
x86.idiv_ev(reg(ebx))
x86.mov_gv_iv(edx, 0)
pop_gv(eax)
x86.mov_gv_ev(ebx, reg(eax))
else:
gen_push(op)
def emit(op):
global depth
# print depth, op
if op == "+":
x86.add_gv_ev(eax, reg(ebx))
pop_gv(ebx)
elif op == "-":
x86.sub_gv_ev(eax, reg(ebx))
pop_gv(eax)
x86.mov_gv_ev(ebx, reg(eax))
elif op == "*":
x86.imul_ev(reg(ebx))
pop_gv(ebx)
elif op == "/":
x86.idiv_ev(reg(ebx))
x86.mov_gv_iv(edx, 0)
pop_gv(eax)
x86.mov_gv_ev(ebx, reg(eax))
elif op == "%":
x86.mov_gv_ev(eax, reg(edx))
x86.idiv_ev(reg(ebx))
x86.mov_gv_iv(edx, 0)
pop_gv(eax)
x86.mov_gv_ev(ebx, reg(eax))
else:
gen_push(op)
def compile(str):
global depth, stack_address
x86.ret()
epilog()
tokens = str.split()
tokens.reverse()
for token in tokens:
try:
op = int(token)
depth = depth - 1
except ValueError:
op = token
depth = depth + 1
emit(op)
x86.mov_gv_iv(esi, stack_address)
prolog()
def compile(str):
global depth, stack_address
x86.ret()
epilog()
tokens = str.split()
tokens.reverse()
for token in tokens:
try:
op = int(token)
depth = depth - 1
except ValueError:
op = token
depth = depth + 1
emit(op)
x86.mov_gv_iv(esi, stack_address)
prolog()
def gen_push(i):
global depth
x86.mov_gv_iv(eax, i)
if 0 < depth:
push_gv(eax)
def emit_add42():
x86.ret()
epilog()
x86.add_gv_ev(eax, atv(ebp, 8))
x86.mov_gv_iv(eax, 42)
prolog()
def gen_push(i):
global depth
x86.mov_gv_iv(eax, i)
if 0 < depth:
push_gv(eax)
