Added more defs in macro code such as literal table and stuff.
This commit is contained in:
parent
d1dc6d1414
commit
c6ae17976f
@ -1,22 +1,22 @@
|
|||||||
# Assignment-A2 (Pass 1 and pass 2 macro processor)
|
|
||||||
try:
|
try:
|
||||||
source= open('source.txt', 'r')
|
source = open('source1.txt', 'r')
|
||||||
dum = source.readline()
|
|
||||||
print("File is read successfully.")
|
print("File is read successfully.")
|
||||||
source.seek(0)
|
source.seek(0)
|
||||||
except FileNotFoundError:
|
except FileNotFoundError:
|
||||||
print('\n\n\nsource.txt file not found.\nOpen Macroprocessor Folder in VSC[not the main folder]\n\n\n')
|
print('\n\n\nsource2.txt file not found. Create it first!\n\n\n')
|
||||||
except IOError:
|
except IOError:
|
||||||
print('The source file has an IO error')
|
print('The source file has an IO error')
|
||||||
|
|
||||||
|
MDT = [] # Macro Definition Table
|
||||||
|
MNT = [] # Macro Name Table
|
||||||
|
LIT = [] # Literal Table
|
||||||
|
LPT = [] # Literal Pool Table
|
||||||
|
|
||||||
MDT =[]
|
|
||||||
MNT =[]
|
|
||||||
|
|
||||||
def macroman(line):
|
def macroman(line):
|
||||||
name = line.split()[1] #A concise way to get the 2nd word-> name of macro. index =1. first split and then get 2nd word
|
name = line.split()[1]
|
||||||
entry = []
|
entry = []
|
||||||
entry.append(line.strip()) #append the macro definition line
|
entry.append(line.strip())
|
||||||
while True:
|
while True:
|
||||||
line = source.readline().upper()
|
line = source.readline().upper()
|
||||||
if not line:
|
if not line:
|
||||||
@ -26,32 +26,43 @@ def macroman(line):
|
|||||||
macroman(line)
|
macroman(line)
|
||||||
elif 'MEND' in line:
|
elif 'MEND' in line:
|
||||||
global MDT, MNT
|
global MDT, MNT
|
||||||
entry.append(line.strip()) #MEND line appended too
|
entry.append(line.strip())
|
||||||
MNT.append([len(MNT)+1, name, len(MDT)+1]) # Eg. 1 Fibo 50
|
MNT.append([len(MNT) + 1, name, len(MDT) + 1])
|
||||||
MDT = MDT + entry
|
MDT.extend(entry)
|
||||||
return
|
return
|
||||||
else:
|
else:
|
||||||
entry.append(line.strip())
|
entry.append(line.strip())
|
||||||
|
# Check for literals and add to the literal table
|
||||||
|
for word in line.split():
|
||||||
|
if word.startswith('='): # Assuming literals start with '='
|
||||||
|
if word not in LIT:
|
||||||
|
LIT.append(word)
|
||||||
|
|
||||||
|
|
||||||
def pass1():
|
def pass1():
|
||||||
global MDT, MNT
|
global MDT, MNT, LIT
|
||||||
while True:
|
while True:
|
||||||
line = source.readline().upper()
|
line = source.readline().upper()
|
||||||
if not line: break
|
if not line: break
|
||||||
if 'MACRO' in line:
|
if 'MACRO' in line:
|
||||||
macroman(line)
|
macroman(line)
|
||||||
|
|
||||||
print('\nMNT:')
|
print('\nMNT:')
|
||||||
for a in MNT:
|
for a in MNT:
|
||||||
print(a)
|
print(a)
|
||||||
print('\n\nMDT:')
|
|
||||||
i=0
|
print('\nMDT:')
|
||||||
for a in MDT:
|
for i, a in enumerate(MDT, start=1):
|
||||||
i=i+1
|
|
||||||
print(i, ' ', a)
|
print(i, ' ', a)
|
||||||
|
|
||||||
|
print('\nLIT:')
|
||||||
|
for i, lit in enumerate(LIT, start=1):
|
||||||
|
print(i, ' ', lit)
|
||||||
|
|
||||||
|
|
||||||
pass1()
|
pass1()
|
||||||
#pass 2 starts here:
|
|
||||||
|
|
||||||
def inserter(sline, name):
|
def inserter(sline, name):
|
||||||
global MDT, MNT
|
global MDT, MNT
|
||||||
sline = ''
|
sline = ''
|
||||||
@ -66,11 +77,13 @@ def inserter(sline, name):
|
|||||||
add += 1
|
add += 1
|
||||||
return sline
|
return sline
|
||||||
|
|
||||||
|
|
||||||
def pass2():
|
def pass2():
|
||||||
source.seek(0)
|
source.seek(0)
|
||||||
output = open('output.txt', 'w')
|
output = open('output.txt', 'w')
|
||||||
output.close()
|
output.close()
|
||||||
output = open('output.txt', 'a+')
|
output = open('output.txt', 'a+')
|
||||||
|
|
||||||
while True:
|
while True:
|
||||||
sline = source.readline().upper()
|
sline = source.readline().upper()
|
||||||
if not sline: break
|
if not sline: break
|
||||||
@ -78,9 +91,19 @@ def pass2():
|
|||||||
if a[1] in sline and 'MACRO' not in sline:
|
if a[1] in sline and 'MACRO' not in sline:
|
||||||
sline = inserter(sline, a[1])
|
sline = inserter(sline, a[1])
|
||||||
d = sline.strip()
|
d = sline.strip()
|
||||||
|
# Check for literals in the output line
|
||||||
|
for word in d.split():
|
||||||
|
if word.startswith('='):
|
||||||
|
if word not in LPT: # If not already in the literal pool table
|
||||||
|
LPT.append(word)
|
||||||
|
|
||||||
if d not in MDT:
|
if d not in MDT:
|
||||||
output.write(sline)
|
output.write(sline)
|
||||||
|
|
||||||
print('done.')
|
print('done.')
|
||||||
|
print('\nLPT:')
|
||||||
|
for i, lpt in enumerate(LPT, start=1):
|
||||||
|
print(i, ' ', lpt)
|
||||||
|
|
||||||
|
|
||||||
pass2()
|
pass2()
|
||||||
|
@ -1,21 +0,0 @@
|
|||||||
macro add num1, num2
|
|
||||||
a1
|
|
||||||
maCro sub num1, num2
|
|
||||||
s1
|
|
||||||
s2
|
|
||||||
s3
|
|
||||||
mend
|
|
||||||
a2
|
|
||||||
mend
|
|
||||||
The code above should not come in output coz it's just definitions.
|
|
||||||
The actual code begins from here.
|
|
||||||
sure, you can write any shit in the file.
|
|
||||||
start 1000
|
|
||||||
mover areg, 50
|
|
||||||
movem breg, 100
|
|
||||||
I am now calling first function. The following line should be replaced by the body:
|
|
||||||
add areg, 30
|
|
||||||
dbms_output.print_line('Present Ma'am!')
|
|
||||||
equ areg, 40
|
|
||||||
add 5,6
|
|
||||||
sub 3,4
|
|
13
Codes/Python version/Assignment-A2 (Macro)/source1.txt
Normal file
13
Codes/Python version/Assignment-A2 (Macro)/source1.txt
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
MACRO FIBO
|
||||||
|
MOVE A, =5
|
||||||
|
ADD A, B
|
||||||
|
MEND
|
||||||
|
|
||||||
|
MACRO SUM
|
||||||
|
ADD A, B
|
||||||
|
MOVE C, =100
|
||||||
|
MEND
|
||||||
|
|
||||||
|
START:
|
||||||
|
FIBO
|
||||||
|
SUM
|
Loading…
Reference in New Issue
Block a user