mtgos-mtgos-3ds9/buildtools/mmapcomp.py

78 lines
2.1 KiB
Python
Executable file

#!/usr/bin/env python3
import sys,os
sf = sys.argv[1]
tf = os.path.splitext(sf)[0] + ".mmap"
hf = os.path.splitext(sf)[0] + ".mh"
with open(sf) as f:
code = [ x[:-1] for x in f.readlines()]
obj = []
endian='little'
bits=32
for line in code:
data = b''
a = line.split(' ')
if a[0] == "DEVICETYPE":
data+=b'\x00'
data+=b'\x01'
devicetypes={"PC":b'\x00', "CONSOLE":b'\x01', "EMBEDDED":b'\x02'}
data+=devicetypes[a[1]]
elif a[0] == "DEVICENAME":
data+=b'\x01'
data+=len(a[1]).to_bytes(1,'little')
data+=a[1].encode("UTF-8")
elif a[0] == "CPUARCH":
data+=b'\x02'
data+=b'\x01'
archs = {"X86":b'\x00', "X86_64":b'\x01', "ARM":b'\x02'}
data+=archs[a[1]]
elif a[0] == "ENDIAN":
data+=b'\x03'
data+=b'\x01'
if a[1] == "BIG":
data+=b'\x00'
endian='big'
else:
data+=b'\x01'
endian="little"
elif a[0] == "BITS":
data+=b'\x04'
data+=b'\x01'
if a[1] == "32":
data+=b'\x20'
bits=32
else:
data+=b'\x40'
bits=64
elif a[0] == "REGION":
data+=b'\x05'
data+=(bits//4+1).to_bytes(1,endian)
data+=int(a[1],16).to_bytes(bits//8,endian)
data+=int(a[2],16).to_bytes(bits//8,endian)
perms={
"NONE": 0,
"X": 1,
"W": 2,
"WX": 3,
"R": 4,
"RX": 5,
"RW": 6,
"RWX": 7
}
data+=perms[a[3]].to_bytes(1,endian)
elif a[0] == "":
continue
else:
raise ValueError("Unknown command '"+a[0]+"'")
obj.append(data)
mmdata = b'MMAP' + bytes(4) + len(obj).to_bytes(4,'little')
for o in obj:
mmdata += o
with open(tf,"wb") as f:
f.write(mmdata)
with open(hf, "w") as f:
f.write("#pragma once\n")
f.write("#include <stdint.h>\n")
f.write("uint8_t mmap[] = {\n")
for b in mmdata:
f.write(hex(b)+", ")
f.write("\n};\n")