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2025-07-16 13:00:37 +03:00
commit 7894b48931
806 changed files with 162532 additions and 0 deletions
@@ -0,0 +1,75 @@
+class VMWriter:
+    def __init__(self, vm_path):
+        self.my_vm = open(vm_path, "w+")
+        self.label_index = 0
+
+    def write_push(self, segment, index):
+        self.my_vm.write(f'push {segment} {index}\n')
+        print(f'push {segment} {index}')
+
+    def write_lable(self, label):
+        self.my_vm.write(f'label L{label}\n')
+        print(f'label L{label}')
+
+    def write_arithmetic(self, command):
+        if command == '+':
+            self.my_vm.write('add\n')
+            print('add')
+        elif command == '-':
+            self.my_vm.write('sub\n')
+            print('sub')
+        elif command == 'neg':
+            self.my_vm.write('neg\n')
+            print('neg')
+        elif command == '=':
+            self.my_vm.write('eq\n')
+            print('eq')
+        elif command == '>':
+            self.my_vm.write('gt\n')
+            print('gt')
+        elif command == '<':
+            self.my_vm.write('lt\n')
+            print('lt')
+        elif command == '&':
+            self.my_vm.write('and\n')
+            print('and')
+        elif command == '|':
+            self.my_vm.write('or\n')
+            print('or')
+        elif command == '~':
+            self.my_vm.write('not\n')
+            print('not')
+        elif command == '*':
+            self.write_call('Math.multiply', 2)
+        elif command == '/':
+            self.write_call('Math.divide', 2)
+
+    def write_pop(self, segment, index):
+        print(f'pop {segment} {index}')
+        self.my_vm.write(f'pop {segment} {index}\n')
+
+    def write_goto(self, label):
+        self.my_vm.write(f'goto L{label}\n')
+        print(f'goto L{label}')
+
+    def write_if(self, label):
+        self.write_arithmetic('~')
+        self.my_vm.write(f'if-goto L{label}\n')
+        print(f'if-goto L{label}')
+
+    def write_call(self, label, num_args):
+        self.my_vm.write(f'call {label} {num_args}\n')
+        print(f'call {label} {num_args}')
+
+    def write_function(self, label, num_locals):
+        self.my_vm.write(f'function {label} {num_locals}\n')
+        print(f'function {label} {num_locals}')
+
+    def write_return(self, func_type):
+        if func_type == 'void':
+            self.write_push('constant', '0')
+        self.my_vm.write('return\n')
+        print(f'return')
+
+    def close_vm_file(self):
+        self.my_vm.close()