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main.py
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main.py
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from UJU_format import *
from I_Format import *
from R_Format import *
from SB_format import *
from S_Format import *
from common_backend import *
from Parser import *
from assembler_directives import *
line_no =0
class MyException(Exception):
pass
dict = {
'lui':{'type': 'UJU'},
'auipc':{'type':'UJU'},
'jal':{'type': 'UJU'},
'sb': {'type': 'S'},
'sh': {'type': 'S'},
'sw': {'type': 'S'},
'sd': {'type': 'S'},
'addi': {'type': 'I'},
'andi': {'type': 'I'},
'ori': {'type': 'I'},
'lb': {'type': 'I'},
'ld': {'type': 'I'},
'lh': {'type': 'I'},
'lw': {'type': 'I'},
'jalr': {'type': 'I'},
'add':{'type':'R'},
'and':{'type':'R'},
'or':{'type':'R'},
'sll':{'type':'R'},
'slt':{'type':'R'},
'sra':{'type':'R'},
'srl':{'type':'R'},
'sub':{'type':'R'},
'xor':{'type':'R'},
'mul':{'type':'R'},
'div':{'type':'R'},
'rem':{'type':'R'},
'beq':{'type':'SB'},
'bne':{'type':'SB'},
'blt':{'type':'SB'},
'bge':{'type':'SB'}
}
def main1(file_name):
file_read = open(file_name,"r")
file_write1 = open("1.mc","w")
file_write = open("output.mc","w")
lines =file_read.readlines()
lines=[val for val in lines if val!='\n']
lines2 = []
for line in lines:
line2=line.replace('\n','')
lines2.append(line2)
lines = lines2.copy()
lines = parseDoc(lines)
print(lines)
lines3=[]
global line_no
for x in lines:
oper= x.split()[0]
#print (x)
# print(oper)
if('.' not in x and ':' not in x):
if oper not in dict:
raise MyException('Error, unrecognized instruction')
format_type=dict[oper]['type']
#print(format_type)
lines3.append(hex(line_no))
line_no=line_no+4
lines3.append(' ')
if format_type=='S':
y=S_Format(x)
lines3.append(y)
elif format_type=='R':
y=R_Format(x)
lines3.append(y)
elif format_type=='I':
y=I_Format(x)
lines3.append(y)
elif format_type=='SB':
y=SB_format(x)
lines3.append(y)
elif format_type=='UJU':
y=UJU_Format(x)
lines3.append(y)
else:
raise MyException('Error, unrecognized instruction')
lines3.append('\n')
file_write.writelines(lines3)
asmdirdict=asembler_directives()
#print(asmdirdict)
#memptr='0x10000000'
lines4=[]
for p, q in asmdirdict.items():
lines4.append(hex(p)+' '+hex(q)+'\n')
file_write.writelines(lines4)
file_write1.writelines(lines3)
file_read.close()
file_write.close()
file_write1.close()
# def main1():
# file_read = open("input.txt", "r")
# file_write = open("output.txt", "w")
# lines = file_read.readlines()
# for line in lines:
# parse(line)
#
# print(x)
# file_write.writelines(x)
# file_read.close()
# file_write.close()
#
def main2():
fetch(prog_ptr)
decode()
execute()
memaccess()
update()
main1('input.txt')