The Fusion of Last Centurys and Modern Technology

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The Fusion of Last Centurys and Modern Technology

• The CasLink/CasLink2 Project by Alexey Podrezov

October 2008
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Agenda

• In the Beginning
• MSX as the Source of Inspiration
• The Proud Owner
• No Disk Drive Solution Needed
• 1999 The First Caslink
• 2008 Caslink2
• Live Demo
• Plans for Caslink3
• Credits

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• In the beginning

?
?
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• In the beginning

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• In the beginning

KYBT A set of computers, usually connected to
the same network and used for educational
purposes.
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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• In the beginning

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• Msx as the source of inspiration

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• Msx as the source of inspiration

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• Msx as the source of inspiration

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• The Proud owner

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• The Proud owner

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• The Proud owner

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• No disk drive solution needed

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• No disk drive solution needed

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• No disk drive solution needed

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• No disk drive solution needed

?
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• No disk drive solution needed

?
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• No disk drive solution needed

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• No disk drive solution needed

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• 1999 the first caslink

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• 1999 the first caslink

Supported input formats

• BAS - tokenized basic programs
• BAS/DAT - detokenized basic programs (ASCII
  format)
• BIN - binary images of ROM cartridges with
  startup code
• ROM - images of ROM cartridges

• BIN - 8/16/24 kb
• ROM - 8/16/24/32 kb

Supported output formats

• WAV 11025 Hz, 8 bit, mono

• 1200 baud rate
• 2400 baud rate

Single file or multi-file mode (up to 10 files)
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• 1999 the first caslink

BIT0 1200 baud 0 1200 Hz 1 2400 Hz 2400
baud 0 2400 Hz 1 4800 Hz 3600 baud 0
4800 Hz 1 9600 Hz
Amplitude
Time
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• 1999 the first caslink

BIT1 1200 baud 0 1200 Hz 1 2400 Hz 2400
baud 0 2400 Hz 1 4800 Hz 3600 baud 0
4800 Hz 1 9600 Hz
Amplitude
Time
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• 1999 the first caslink

Byte Representation in FSK Encoding START_BIT,
BIT0, BIT1, BIT2, BIT3, BIT4, BIT5, BIT6, BIT7,
STOP_BIT, STOP_BIT Example for byte with value
0x00 (zero) 1 0 0 0 0 0 0 0 0 1
1 Example for byte with value 0xFF (255) 1 1
1 1 1 1 1 1 1 1 1
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• 1999 the first caslink

0000h
ROM BIOS
LOADER
4000h
ROM BASIC
BASIC PCODE
8000h
8/16/24/32 ROM/BIN
RAM
SYSVAR
F380h FFFFh
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• 1999 the first caslink

0000h
0000h
ROM BIOS
ROM BIOS
4000h
4000h
8/16/24 BIN
ROM BASIC
LOADER
LOADER
8000h
8000h
8/16/24 BIN
8/16/24 BIN
SYSVAR
SYSVAR
F380h FFFFh
F380h FFFFh
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• 1999 the first caslink

0000h
0000h
ROM BIOS
ROM BIOS
4000h
4000h
ROM BASIC
8/16/24 BIN
LOADER
LOADER
8000h
8000h
8/16/24 BIN
8/16/24 BIN
SYSVAR
SYSVAR
BLOAD next
F380h FFFFh
F380h FFFFh
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• 1999 the first caslink

0000h
0000h
RAM
RAM
4000h
4000h
8-16kb ROM
RAM
LOADER
LOADER
8000h
8000h
8-16kb ROM
8-16kb ROM
SYSVAR
SYSVAR
F380h FFFFh
F380h FFFFh
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• 1999 the first caslink

0000h
0000h
8-16kb ROM
RAM
4000h
4000h
RAM
RAM
LOADER
LOADER
8000h
8000h
8-16kb ROM
8-16kb ROM
SYSVAR
SYSVAR
F380h FFFFh
F380h FFFFh
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• 1999 the first caslink

0000h
0000h
RAM
RAM
4000h
4000h
ROM part 1
RAM
LOADER 1
LOADER 1
8000h
8000h
ROM part 1
ROM part 1
SYSVAR
BLOAD next
F380h FFFFh
F380h FFFFh
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• 1999 the first caslink

0000h
0000h
RAM
RAM
4000h
4000h
ROM part 1
ROM part 1
LOADER 2
8000h
8000h
ROM part 2
ROM part 2
LOADER 2
SYSVAR
SYSVAR
F380h FFFFh
F380h FFFFh
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• 2008 caslink2

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• 2008 caslink2

Supported input formats

• BAS tokenized or detokenized basic programs
  (ASCII format)
• BIN - binary images of ROM cartridges with
  startup code
• ROM - images of ROM cartridges
• SCR - screenshots

• BIN - 8/16/24/32 kb
• ROM - 8/16/24/32 kb
• CRC checker for ROM/BIN
• Preloader

Supported output formats

• WAV 11025 Hz, 8 bit, mono
• WAV 44100 Hz, 16 bit, stereo
• MP3 192, 256 and 320 kbps (LAME MP3 codec)

• 1200 baud rate
• 2400 baud rate
• 3600 baud rate
• Inverted waveform

Single file or multi-file mode (up to 15 files)
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• 2008 caslink2

Amplitude
Amplitude
Time
Time
Normal waveform
Inverted waveform
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• Live demo

Yamaha MSX2 YIS503IIIR/128 Apple iPOD Nano
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• Plans for caslink3

• Bi-directional support (reading and decoding
  files from MSX)
• GUI (frontend for Windows 2000/XP/Vista)
• Faster upload? (reference to O.T.L.A. Project
  12000 baud?)
• Compression? (reference to Stanislav Borutsky
  aka CAX)
• 128kb ROM upload?
• More?

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• credits

Egor VoznessenskiyGennadiy KurapovSergey
KirovEkaterina Kirova Mikhail Volkov Ahti
Soilamaa
Sean Young (not the actor)Arnaud (aka The
File-Hunter)IgorX (Mr. Unknown)Timo Soilamaa
(aka Nyyrikki)Saku Taipale (aka STT) Mikko
Tuomela (AltParty)
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• Questions ?

• alexey.podrezov_at_gmail.com
• http//www.finnov.net/wierzbowsky/

October 2008