import struct
from parse import records

rs = records()
for r in rs:
    b = r['blk']
    r['chk'] = struct.unpack_from('<H', b, 1)[0]
    r['chkbe'] = struct.unpack_from('>H', b, 1)[0]
    r['rnd'] = struct.unpack_from('<I', b, 3)[0]

print("%-18s %-6s %-6s %-6s %6s" % ('name','chkLE','chkBE','rand','blen'))
for r in rs:
    print("%-18s %04x   %04x   %04x   %6d" % (r['name'], r['chk'], r['chkbe'], r['rnd'], r['blklen']))

print()
# simple sum tests
def sums(b):
    return dict(
        sum_all=sum(b)&0xffff,
        sum_3=sum(b[3:])&0xffff,
        sum_7=sum(b[7:])&0xffff,
        sum_116=sum(b[0x116:])&0xffff,
        sum_z=(sum(b)-b[1]-b[2])&0xffff,
        xor_all=0,
    )
for r in rs[:6]:
    b=r['blk']
    print(r['name'], '%04x'%r['chk'], {k:'%04x'%v for k,v in sums(b).items()})