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QkoSad
2025-07-16 13:00:37 +03:00
commit 7894b48931
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projects/07/VMTranslator.py
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import os
import sys
from pathlib import Path
trueCounter = 0
falseCounter = 0
staticCounter = 16
def clear_file(temp_string_cf, asmfile): # clears the empty lines, comments and spaces and writes them in a string
for line in asmfile:
f = 0
if line == '\n': # removes empty lines
continue
for index in range(len(line)):
if line[index] == "/" and line[index + 1] == '/': # checks if it is comment
if f == 1: # maybe a problem if the last element of a line is / since it will stay
temp_string_cf += '\n'
break
if line[index] != ' ': # removes all of the whitespaces except newlines
temp_string_cf += line[index]
f = 1
return temp_string_cf
def push(line):
global tempString1
if line[4:8] == 'this':
number = int(line[8:])
line = '@' + str(number) + '\nD=A\n@THIS\nA=M+D\nD=M\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
elif line[4:8] == 'that':
number = int(line[8:])
line = '@' + str(number) + '\nD=A\n@THAT\nA=M+D\nD=M\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
elif line[4:8] == 'temp':
number = int(line[8:])
number += 5
line = '@' + str(number) + '\nD=M\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
elif line[4:9] == 'local':
number = int(line[9:])
line = '@' + str(number) + '\nD=A\n@LCL\nA=M+D\nD=M\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
elif line[4:10] == 'static':
number = int(line[10:])
line = '@' + name1 + '.' + str(number) + '\nD=M\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
elif line[4:11] == 'pointer':
number = int(line[11:])
number += 3
line = '@' + str(number) + '\nD=M\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
elif line[4:12] == 'argument':
number = int(line[12:])
line = '@' + str(number) + '\nD=A\n@ARG\nA=M+D\nD=M\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
elif line[4:12] == 'constant':
number = line[12:]
line = '@' + str(number) + '\nD=A\n@SP\nA=M\nM=D\n@SP\nM=M+1\n'
tempString1 += line
def pop(line):
global SP
global tempString1
if line[3:7] == 'this':
number = int(line[7:])
line = '@' + str(number) + '\nD=A\n@THIS\nM=M+D\n@SP\nM=M-1\nA=M\nD=M\n@THIS\nA=M\nM=D\n' + '@' + str(
number) + '\nD=A\n@THIS\nM=M-D\n'
elif line[3:7] == 'that':
number = int(line[7:])
line = '@' + str(number) + '\nD=A\n@THAT\nM=M+D\n@SP\nM=M-1\nA=M\nD=M\n@THAT\nA=M\nM=D\n' + '@' + str(
number) + '\nD=A\n@THAT\nM=M-D\n'
elif line[3:7] == 'temp':
number = int(line[7:])
number = number + 5
line = '@SP\nM=M-1\nA=M\nD=M\n@' + str(number) + '\nM=D\n'
elif line[3:8] == 'local':
number = int(line[8:])
line = '@' + str(number) + '\nD=A\n@LCL\nM=M+D\n@SP\nM=M-1\nA=M\nD=M\n@LCL\nA=M\nM=D\n' + '@' + str(
number) + '\nD=A\n@LCL\nM=M-D\n'
elif line[3:9] == 'static':
number = int(line[9:])
line = '@SP\nM=M-1\nA=M\nD=M\n@' + name1 + '.' + str(number) + '\nM=D\n'
elif line[3:10] == 'pointer':
number = int(line[10:])
number = number + 3
line = '@SP\nM=M-1\nA=M\nD=M\n@' + str(number) + '\nM=D\n'
elif line[3:11] == 'argument':
number = int(line[11:])
line = '@' + str(number) + '\nD=A\n@ARG\nM=M+D\n@SP\nM=M-1\nA=M\nD=M\n@ARG\nA=M\nM=D\n' + '@' + str(
number) + '\nD=A\n@ARG\nM=M-D\n'
tempString1 += line
def aritmetic(line):
global trueCounter
global falseCounter
global tempString1
if line == 'add':
line = "@SP\nM=M-1\nA=M\nD=M\nA=A-1\nM=M+D\n"
elif line == 'sub':
line = "@SP\nM=M-1\nA=M\nD=M\nA=A-1\nM=M-D\n"
elif line == 'neg':
line = "@SP\nA=M\nA=A-1\nM=-M\n"
elif line == 'eq':
line = '@SP\nM=M-1\nA=M\nD=M\nA=A-1\nD=M-D\n@TRUE' + str(
trueCounter) + '\nD;JEQ\n@SP\nA=M\nA=A-1\nM=0\n@FALSE' + str(
falseCounter) + '\n0;JMP\n(TRUE' + str(trueCounter) + ')\n@SP\nA=M\nA=A-1\nM=-1\n(FALSE' + str(
falseCounter) + ')\n'
trueCounter += 1
falseCounter += 1
elif line == 'gt':
line = '@SP\nM=M-1\nA=M\nD=M\nA=A-1\nD=M-D\n@TRUE' + str(
trueCounter) + '\nD;JGT\n@SP\nA=M\nA=A-1\nM=0\n@FALSE' + str(
falseCounter) + '\n0;JMP\n(TRUE' + str(trueCounter) + ')\n@SP\nA=M\nA=A-1\nM=-1\n(FALSE' + str(
falseCounter) + ')\n'
trueCounter += 1
falseCounter += 1
elif line == 'lt':
line = '@SP\nM=M-1\nA=M\nD=M\nA=A-1\nD=M-D\n@TRUE' + str(
trueCounter) + '\nD;JLT\n@SP\nA=M\nA=A-1\nM=0\n@FALSE' + str(
falseCounter) + '\n0;JMP\n(TRUE' + str(trueCounter) + ')\n@SP\nA=M\nA=A-1\nM=-1\n(FALSE' + str(
falseCounter) + ')\n'
trueCounter += 1
falseCounter += 1
elif line == 'and':
line = "@SP\nM=M-1\nA=M\nD=M\nA=A-1\nM=M&D\n"
elif line == 'or':
line = "@SP\nM=M-1\nA=M\nD=M\nA=A-1\nM=M|D\n"
elif line == 'not':
line = "@SP\nA=M\nA=A-1\nM=!M\n"
tempString1 += line
name1 = None
line, tempString = '', ''
tempString1 = ''
aritmeticList3 = ['add', 'sub', 'neg', 'and', 'not']
aritmeticList2 = ['or', 'gt', 'lt', 'eq']
yourpath = os.getcwd()
for root, dirs, files in os.walk(yourpath, topdown=False):
nam1 = ''
for name in files:
if name[-3:] == '.vm':
name1 = name
tempString1 = ''
tempString = ''
with open(Path(root, name), "r+") as vmfile:
tempString = clear_file(tempString, vmfile)
for j in tempString: # zapisva liniqta v string koito posle se obrabotva
if j != '\n':
line += j
else:
if line[:4] == 'push':
push(line)
line = ''
elif line[:3] == 'pop':
pop(line)
line = ''
elif line[:2] in aritmeticList2 or line[:3] in aritmeticList3:
aritmetic(line)
line = ''
if name1 == name:
with open(Path(root, f'{name1[:-3]}.asm'), 'w+') as newfile:
newfile.write(tempString1)