import re
sys.path.append(os.path.join(os.path.join(sys.path[0], '..'), 'bitstream'))
from chips import ChipWithID, ChipOrPackageNamed
from utils import string_to_bits, bits_to_string
if len(sys.argv) < 3:
print("usage: %s <input fasm file> <output asc file> [device_id]" %
sys.argv[0])
sys.exit(-1)
#
# Create bits for the bitstream
#
if len(sys.argv) < 4:
chip = ChipWithID(0x00120010)
else:
chip = ChipOrPackageNamed(sys.argv[3])
bits_by_tile = []
for col in range(0, chip.columns):
col_bits = []
for row in range(0, chip.rows):
tile = chip.tile_at(col, row)
if tile is None:
col_bits.append([])
else:
col_bits.append(tile.empty_bits())
bits_by_tile.append(col_bits)
bits_by_config = []
break
elif spi_mark != 0xffff:
# ffff is observed on AG1K spi flash bitstreams
# _master.bin is identical to .bin, except
# it comes with 0xffff at the start.
reader.reset()
cur_pos = reader.pos
unknown_mark = reader.read32()
if unknown_mark != 0x967e3c5a:
# This is seen on the AG16K bitstreams.
# It's purpose is unknown
reader.seek(cur_pos)
device_id = reader.read32()
chip = ChipWithID(device_id)
if chip is None:
print("Unexpected device id %s at pos %s" % (hex(device_id), reader.pos - 4))
sys.exit(-1);
print(".device %s" % hex(device_id))
# ????
reader.require32(0x0000FFFF)
pos = reader.pos
lzw_marker = reader.read8()
if lzw_marker != 0x55:
# Not lzw, roll-back the reader
print_explain_data(data)
data = None
for line in lines:
line = line.strip()
if line.startswith("."):
if data != None:
print_data(data)
data = None
comps = line.split(" ")
if len(comps) == 2:
if comps[0] == ".device":
chip_id = int(comps[1], 16)
chip = ChipWithID(chip_id)
assert (chip != None)
print("%sdevice %s" %
("# " if emit_fasm else ".", hex(chip.device_id)))
elif comps[0] == ".config_chain":
chain_id = int(comps[1])
chain = chip.configChain[chain_id]
data = {
'bits': [],
'owner': chain,
'header': line,
'args': {
'chain_id': chain_id
}
}
if len(comps) == 3:
#
# Parse the .asc file
#
entries = []
data = None
chip = None
for line in lines:
line = line.strip()
if line.startswith("."):
data = None
comps = line.split(" ")
if len(comps) == 2:
if comps[0] == ".device":
chip_id = int(comps[1], 16)
chip = ChipWithID(chip_id)
elif comps[0] == ".config_chain":
chain_id = int(comps[1])
data = {'bits': [], 'type': 'chain', 'id': chain_id}
entries.append(data)
if len(comps) == 3:
if chip != None:
x = int(comps[1])
y = int(comps[2])
if x >= 0 and y >= 0:
data = {'x': x, 'y': y, 'type': 'tile', 'bits': []}
entries.append(data)
elif len(line) > 0:
if data != None:
for char in line:
if char == "0" or char == "1":
#
# Parse the .asc file
#
entries = []
data = None
chip = None
for line in lines:
line = line.strip()
if line.startswith("."):
data = None
comps = line.split(" ")
if len(comps) == 2:
if comps[0] == ".device":
chip_id = int(comps[1], 16)
chip = ChipWithID(chip_id)
elif comps[0] == ".config_chain":
chain_id = int(comps[1])
data = {'bits': [], 'type': 'chain', 'id': chain_id}
entries.append(data)
if len(comps) == 3:
if chip != None:
x = int(comps[1])
y = int(comps[2])
if x >= 0 and y >= 0:
data = {'x': x, 'y': y, 'type': 'tile', 'bits': []}
entries.append(data)
elif len(line) > 0:
if data != None:
for char in line:
if char == "0" or char == "1":