IT Junk Box

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Dump file to Binary file
 
import os
import sys
import optparse
import re
import binascii
 
rehex = re.compile( r'^(?:0x\w{8}: |\w{4}-\w{4}  )(.{23}) -* (.{23})' )
 
def hex2bin( str ):
    matched = rehex.search( str )
    if matched:
        hexstr = ( matched.group(1) + matched.group(2) ).translate(None, " ")
        sys.stdout.write( binascii.unhexlify( hexstr ))
 
def main():
    options, args = optparse.OptionParser().parse_args()
    if len( args ) > 0:
        for filename in args:
            if os.path.exists( filename ):
                with open( filename ) as f:
                    for line in f:
                        hex2bin( line )
 
if __name__ == '__main__':
    main()

/*      Tuner Initial settings  */
#define DEFAULT_TUNER_CHNL      18      /* Channel no. */
#define DEFAULT_TUNER_CTYP      1       /* Channel type : 0 (air), 1 (cable) */

> sysctl hw.cxm0
hw.cxm0.card_name: YUAN MPG600/GR
hw.cxm0.tuner.type: Philips FQ1236/F
hw.cxm0.tuner.channel_type: 1
hw.cxm0.tuner.channel: 18
hw.cxm0.tuner.v4l2_ctrl: 0

 # cd /usr/ports/sysutils/flashrom/
 # make && make install

# flashrom 
Calibrating delay loop... OK.
No coreboot table found.
Found chipset "Intel NM10", enabling flash write... tried to set 0xdc to 0xf on NM10 failed (WARNING ONLY)
WARNING: SPI Configuration Lockdown activated.
FAILED!
This chipset supports the following protocols: SPI.
Found chip "Winbond W25x80" (1024 KB, SPI) at physical address 0xfff00000.
No operations were specified.

# flashrom -r nm10.rom
Calibrating delay loop... OK.
No coreboot table found.
Found chipset "Intel NM10", enabling flash write... tried to set 0xdc to 0xf on NM10 failed (WARNING ONLY)
WARNING: SPI Configuration Lockdown activated.
FAILED!
This chipset supports the following protocols: SPI.
Found chip "Winbond W25x80" (1024 KB, SPI) at physical address 0xfff00000.
Reading flash... done.

# newfs_msdos -F 16 -m 0xf8 /dev/da0
# dd if=/dev/da0 of=usb.img bs=1m

$ ./sys-freedos.pl --disk=/home/fake/usb.img --lba \
     --heads=64 --sectors=32 --drive=0
# dd if=usb.img of=/dev/da0 bs=1m

# mount -t msdosfs -o -u1001 /dev/da0 /mnt
mkdir /mnt/freedos
mcopy kernel.sys command.com config.sys /mnt
mcopy command.com /mnt/freedos
# umount /mnt

> IFLASH2.EXE /pf MO0512P.BIO
 
IFLASH2 Version 2.4 - Build 064
 
BIOSID's do not match
Currently Installed BIOS ID:    MOPNV10J.86A.0311.2010.0802.2346
Attempting to install BIOS ID:  MOPNV10N.86A.0512.2011.0225.1500

> IFLASH2.EXE /pf MO0400P.BIO

> mplayer -playlist http://www.simulradio.jp/asx/FmYokote.asx
> mplayer -playlist http://www.simulradio.jp/asx/FmYutopia.asx
> mplayer -playlist http://www.simulradio.jp/asx/FmSalus.asx
> mplayer -playlist http://www.simulradio.jp/asx/FmKita.asx

#!/usr/bin/env ruby19
# encoding: utf-8
 
rgxpm = Regexp.new( "午後: \(\\d+\)" )
 
text = <<"EOM"
  午後: 1:30  集合
  午後: 2:00  出発
  午後: 2:50  到着
  午後: 5:00  解散
EOM
print text.gsub( /#{rgxpm}/, ('\1'.to_i + 12).to_s )

　○直流電動機ブラシ,
　　モーターに直流電動機を使用している車両約2,300両に影響がでます。
　　（在来線電車約4,700両のうち約50パーセント）

[plugin]
autosync=0
mc=0
correct-pts=yes

#include 
 
unsigned long tsc(void)
{
  unsigned int _EAX, _EDX;
  __asm__ __volatile__
    (
    "rdtsc\n\t"
    : "=a"(_EAX), "=d"(_EDX) :
    );
  return ( ((unsigned long)_EDX << 32) + _EAX );
}
 
main()
{
#pragma omp parallel
  {
    printf("TSC: %ld  %d of %d\n",
      tsc(), omp_get_thread_num(), omp_get_num_threads());
  }
} 

$ gcc -s -fopenmp -o tsc tsc.c
$ ./tsc 
TSC: 186769780784920  0 of 4
TSC: 186769780823300  2 of 4
TSC: 186769780790360  3 of 4
TSC: 186769780809910  1 of 4

Ivan Voras氏はスクリプト言語として/bin/shではなくLuaを採用することで，より生産性を高めることができるだろうという内容でした。

PTPはNTPよりも高い精度での同期を実現する方法で，主にLANの内部においてミリ秒以内の誤差で時刻の同期を実現します。

> mplayer mms://fmwappy.aa0.netvolante.jp:8080
> mplayer -playlist http://www.simulradio.jp/asx/FmKushiro.asx