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Optimisations #5

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65 changes: 23 additions & 42 deletions deque.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,24 @@

tracing = False

def push_data(value):
if left is None:
raise RuntimeError(f"Direction is not provided for {word} at {ip}")
if left:
data.appendleft(value)
else:
data.append(value)

def pop_data():
if left is None:
raise RuntimeError(f"Direction is not provided for {word} at {ip}")
if left:
return data.popleft()
else:
return data.pop()

if __name__ == '__main__':

if len(sys.argv) < 2:
print("ERROR: no file path is provided")
exit(1)
Expand All @@ -27,7 +44,6 @@
if word in labels:
raise RuntimeError(f"Label `{word}` already defined")
labels[word] = ip

data = deque()

ip = 0
Expand All @@ -46,122 +62,87 @@
ip += 1
continue

def push_data(value):
if left is None:
raise RuntimeError(f"Direction is not provided for {word} at {ip}")
if left:
data.appendleft(value)
else:
data.append(value)

def pop_data():
if left is None:
raise RuntimeError(f"Direction is not provided for {word} at {ip}")
if left:
return data.popleft()
else:
return data.pop()

if word == 'add':
a = pop_data()
b = pop_data()
push_data(a + b)
ip += 1
elif word == 'sub':
a = pop_data()
b = pop_data()
push_data(b - a)
ip += 1
elif word == 'dup':
a = pop_data()
push_data(a)
push_data(a)
ip += 1
elif word == 'swap':
a = pop_data()
b = pop_data()
push_data(a)
push_data(b)
ip += 1
elif word == 'move':
a = pop_data()
left = not left
push_data(a)
left = not left
ip += 1
elif word == 'over':
a = pop_data()
b = pop_data()
push_data(b)
push_data(a)
push_data(b)
ip += 1
elif word == 'drop':
pop_data()
ip += 1
elif word == 'shr':
a = pop_data()
b = pop_data()
push_data(b >> a)
ip += 1
elif word == 'shl':
a = pop_data()
b = pop_data()
push_data(b << a)
ip += 1
elif word == 'eq':
a = pop_data()
b = pop_data()
push_data(a == b)
ip += 1
elif word == 'or':
a = pop_data()
b = pop_data()
push_data(a | b)
ip += 1
elif word == 'and':
a = pop_data()
b = pop_data()
push_data(a & b)
ip += 1
elif word == '>':
a = pop_data()
b = pop_data()
push_data(a > b)
ip += 1
elif word == '<':
a = pop_data()
b = pop_data()
push_data(a < b)
ip += 1
elif word == '>=':
a = pop_data()
b = pop_data()
push_data(a >= b)
ip += 1
elif word == 'jmpif':
addr = pop_data()
cond = pop_data()
if cond:
ip = addr
else:
ip += 1
ip = addr-1
elif word == 'jmp':
addr = pop_data()
ip = addr
ip = addr-1
elif word == 'print':
print(pop_data())
ip += 1
elif word == 'exit':
exit(0)
elif word == 'trace':
print(''.join(list(map(lambda x: '*' if x == 1 else ' ', data))))
ip += 1
print(''.join(map(lambda x: '*' if x == 1 else ' ', data)))
else:
try:
push_data(int(word))
ip += 1
except ValueError:
push_data(labels[word])
ip += 1
if tracing: print(data)
ip += 1
if tracing:
print(data)