def Hook(rom: _io.BufferedReader, space: int, hookAt: int, register=0):
# Align 2
if hookAt & 1:
hookAt -= 1
rom.seek(hookAt)
register &= 7
if hookAt % 4:
data = bytes([0x01, 0x48 | register, 0x00 | (register << 3), 0x47, 0x0, 0x0])
else:
data = bytes([0x00, 0x48 | register, 0x00 | (register << 3), 0x47])
space += 0x08000001
data += (space.to_bytes(4, 'little'))
rom.write(bytes(data))
def RamRepoint(rom: _io.BufferedReader, offsetTuples: [(int, int)]):
pointerList = []
pointerDict = {}
for tup in offsetTuples: # Format is (Old Pointer, New Pointer)
pointer = tup[0]
pointerList.append(pointer)
pointerDict[pointer] = tup[1]
offset = 0
while offset < 0xFFFFFD:
rom.seek(offset)
word = ExtractRamPointer(rom.read(4))
rom.seek(offset)
for pointer in pointerList:
if word == pointer:
rom.write(bytes(pointerDict[pointer].to_bytes(4, 'little')))
break
offset += 4
def FunctionWrap(rom: _io.BufferedReader, space: int, hookAt: int,
numParams: int, isReturning: int):
# Align 2
if hookAt & 1:
hookAt -= 1
rom.seek(hookAt)
numParams = numParams - 1
if numParams < 4:
data = bytes([
0x10, 0xB5, 0x3, 0x4C, 0x0, 0xF0, 0x3, 0xF8, 0x10, 0xBC,
(isReturning + 1), 0xBC, (isReturning << 3), 0x47, 0x20, 0x47
])
else:
k = numParams - 3
data = bytes([0x10, 0xB5, 0x82, 0xB0])
for i in range(k + 2):
data += bytes([i + 2, 0x9C, i, 0x94])
data += bytes([
0x0, 0x9C, numParams - 1, 0x94,
0x1, 0x9C, numParams, 0x94, 0x2, 0xB0, k + 8, 0x4C, 0x0, 0xF0,
(k << 1) + 13, 0xF8, 0x82, 0xB0, numParams, 0x9C, 0x1, 0x94,
numParams - 1, 0x9C, 0x0, 0x94
])
for i in reversed(range(k + 2)):
data += bytes([i, 0x9C, i + 2, 0x94])
data += bytes([
0x2, 0xB0, 0x10, 0xBC, isReturning + 1, 0xBC, isReturning << 3,
0x47, 0x20, 0x47
])
space += 0x08000001
data += (space.to_bytes(4, 'little'))
rom.write(bytes(data))
def Repoint(rom: _io.BufferedReader, space: int, repointAt: int, slideFactor=0):
rom.seek(repointAt)
space += (0x08000000 + slideFactor)
data = (space.to_bytes(4, 'little'))
rom.write(bytes(data))
