Autopsy:

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I have received this computer to be repaired for a friend with a classic startup fault; the Black screen of Death.

After careful analysis of the problem and thanks to Alessandro Polito for the test, the failed component was the CPU 6509.

from Wikipedia:

The Commodore CBM-II series was a short-lived range of 8-bit personal computers from Commodore Business Machines (CBM), released in 1982 and intended as a follow-on to the Commodore PET series.

The CBM-II had two incarnations, the P series (P = personal, or, home use) and the B series (B = business use). The B series was available with a built-in monochrome monitor (hi-profile) with detached keyboard, and also as a single unit with built-in keyboard but no monitor (lo-profile). These machines were known as the “Porsche PETs” for their unique styling.

The P series used the VIC-II 40-column color video chip like the C64. It also included two standard Atari-style joystick ports. The 6509 CPU ran at 1 MHz in the P series due to the use of the VIC-II chip.

The B series used a 6545 CRTC video chip to give an 80-column “green screen” monochrome output more suitable for word processing and other business use than the VIC-II’s 40-column display. Most models have the Motorola 68B45 installed which is a pin compatible variant rather than the MOS 6545A1 2 MHz part. On the B series the 6509 CPU ran at 2 MHz.

Features common to both the P and B series included an MOS Technology 6509 CPU, an enhanced version of the venerable 6502, that was capable of addressing up to 1 megabyte of RAM via bank switching (however, no CBM-II model came with more than 256 kilobytes of RAM, 1/4 megabyte). The sound chip was the 6581 SID, the same one that was used in the popular Commodore 64 (C64) but with some limitations as it was over-clocked to 2 MHz. Additionally, the CBM-II had an industry-standard RS-232 serial interface and an IEEE-488 parallel bus (for use by disk drives and printers) just like the PET/CBM series. The CBM-II’s built-in operating system used an enhanced version of CBM BASIC version 4.0.

An optional Intel 8088-based coprocessor board allowed the CBM-II series to run CP/M-86 1.1 and MS-DOS 1.25; however, the computers were not IBM PC compatible and very little, if any, software taking advantage of this capability ever appeared. The coprocessor board only ran on hi-profile machines due to power supply and mechanical spacing requirements.

The production naming within the United States and Canada was the B128/B256 and CBM128-80/CBM 256-80 while in Europe they were known as the 600 and 700 series respectively (no “B” in front of the model number). The P machine was known worldwide as the 500 series. There are prototype models though such as the B500 (earlier B128 design) and B700 (earlier CBM 128-80/CBM 256-80 design) known to exist.

Due to the popularity of the C64, the P series was cancelled in the United States before it could be officially released; however, a few dealers who received preproduction units sold them. As these computers had not received approval from the Federal Communications Commission, this caused legal problems for Commodore. The units were recalled and destroyed, but a very small number exist today, in private collections. At least one model, the P500, was commercially released in Europe but only sold in small numbers.

source: wikipedia

FAIL is a viewer of pictures in native formats of Atari 8-bit, Atari ST, Atari Falcon and Atari Portfolio computers.

Currently the project includes:

• Fail2png – portable command-line converter to PNG files.
• FAILWin – viewer for Windows.
• Thumbnail providers for Windows Explorer and GNOME (Linux)
• Plugin for XnView.
• (de)coder for ImageMagick.
• Plugin for Imagine.
• HTML 5 based viewer.

Changelog:

• New formats: Interlace Character Editor font (ICE), GEM Bit Image (IMG), Multi Palette Picture (MPP).

This is the last release of FAIL. But don’t worry! We are just renaming our project to Retro Computer Image Library (RECOIL), because we are going to support formats from 8-bit and 16-bit machines other than Atari. Stay tuned!

Download: FAIL (First Atari Image Library) v2.0.2 (1772)

source: fail.sourceforge.net

SNDH archive v4.2 released - 3921 SNDH files (total 7389 tunes)

Ever since the birth of the Atari ST, different chip music formats have had different ways to use them. If you are coding a chip music player for the Atari ST you would have to use dozens and dozens of special ways to replay music.

But in the mid 90′s, BDC of Aura crew became tired of this inelegant system and decided to fix the issue once and for all. He then created the ‘SNDH’ file format. SNDH is actually the original songfile and replaycode with a header bolted on top of the music and replayer. The header has a unified calling interface no matter what type of chip music is hidden beneath it, and it has extended datas about the music.

Download: SNDH Atari ST YM2149 Archive v4.2 (1616)

source: sndh.atari.org

Autopsy:

Here you can see a hack of my dtv (Direct-to-TV).

from Wikipedia:

The C64 Direct-to-TV, called C64DTV for short, is a single-chip implementation of the Commodore 64 computer, contained in a joystick (modeled after the mid 1980s Competition Pro joystick) with 30 built-in games. The design is similar to the Atari Classics 10-in-1 TV Game. The circuitry of the C64DTV was designed by Jeri Ellsworth, a self-taught computer chip designer who had formerly designed the C-One.

Tulip Computers (which had acquired the Commodore brand name in 1997) licensed the rights to Ironstone Partners, which cooperated with DC Studios, Mammoth Toys, and “The Toy:Lobster Company” in the development and marketing of the unit.[1] QVC purchased the entire first production run of 250,000 units and sold 70,000 of them the first day they were offered.

There exist multiple versions of the C64DTV. DTV1 (NTSC television type) comes with 2 MB ROM. It first appeared in late 2004 for the American/Canadian market. DTV2 (called C64D2TV sometimes) is a revised version for the European and world markets (PAL television type) and appeared in late 2005. The ROM has been replaced by flash memory in these devices. However, the DTV2/PAL version suffers from a manufacturing fault, which results in poor colour rendering (the resistors in the R-2R ladder DACs for both the chroma and the luma have been transposed). In the DTV3, a problem with the blitter was fixed. Another DTV variant is the Radio Shack “HUMMER Off-Road Racing Challenge Video Game”.

Hardware Specifications:

Core circuity:

• ASIC running at 32 MHz internally, implementing 6510 CPU, VIC-II, SID, CIA, and PLA

Casing/Connectors:

• Integrated in a Joystick (as if connected to port 2 of a real C64)
• Five additional buttons (acting like keys)
• Running from batteries only (four AA batteries)
• Composite Video, monaural audio (RCA connectors)
• Looks similar to a Competition Pro joystick

Graphics:

• NTSC (DTV2 and later: NTSC/PAL on chip, only PAL wired in end-market devices)
• Reprogrammable palette with 4 bits of luma and 4 bits of chroma
• DTV2 and later: “chunky” 256 color mode, additional blitter for fast image transformation

Sound:

• No support for SID filters
• DTV2 and later: 8 bit digital sound, additional options for envelope generators

Memory:   

• DTV1: 128 KB RAM, 2 MB ROM
• DTV2 and later: 2 MB RAM, 2 MB flash memory
• DMA engine for RAM/RAM and ROM/RAM transfers
• DTV2 and later: additional RAM access using bank switching and blitter

CPU:

• Implementing a 6510 at 1 MHz
• DTV2 and later: Enhanced CPU (fast/burst mode, additional registers and opcodes, support for illegal ops of the 6510)

source: wikipedia dtvhacking.retrosafe.com

ASAP is a player of 8-bit Atari music for modern computers and mobile devices. It emulates the POKEY sound chip and the 6502 processor.

The project was initially based on the routines from the Atari800 emulator, but the current version has a completely new original emulation core.

Changelog ASAP 3.1.5 (2013-08-17):

• Android: fixed playback on Android 4.1+, disconnecting headset pauses playback, updates position and avoids “process not responding” during seek, starts in root directory if there’s no memory card.
• GStreamer plugin gets autoplugged (read: SAPs play in GStreamer-based players).
• WASAP plays music to its very end.
• Fixed crash on malformed RMT files.
• Restored Audacious 2.x compatibility.
• DEB packages.
• foobar2000 `*.fb2k-component` package.

Download: ASAP v3.1.5 (1502)

source: asap.sourceforge.net

This is the official demo party results from the Atari Głuchołazy 2013. See also the Atari Głuchołazy 2013 homepage for more informations.

Graphics Compo:

• 1. Fred by Piesiu
• 2. Glazy2013 by Rocky
• 3. Pszczelak by Rocky
• 4. Wampirek by Rocky
• 5. Ogrodnik by Nosty

Music Compo:

• 1. Chip Spring Tune by LiSU
• 2. Far Away by stRing

Code Compo:

• 1. Wielbłądy 2 by Lamers
• 2. Lashes of flashes by TDC

Download:

• Glucholazy 2013 full Party stuff (1680)

source: atari.org.pl/party13/

The HxC Floppy Drive Emulator is a software and hardware system created by jfdn aka Jeff.

The aim of this project is to replace the floppy disk drive by an electronic device emulating the floppy disk drive (list of supported Computer/Hardware).

There are two differents emulators:

• A USB version which allows to connect the floppy disk drive interface of the computer to a PC via a USB cable.
• A SDCARD version which allows to emulate floppy disks which images are stored in a SDCARD.

HxC Floppy Emulator DOS Disk Image Browser:

The HxC Floppy Emulator DOS Disk Image Browser is a simplified version of the HxC Floppy Emulator software. This version is designed to replace the VFD solution.

Avantages over the VFD solution:

• No driver installation needed.
• Support of 3 mode DOS floppy disk image (1KB sector size) (For PC98 based CNC machines).
• Support of special/custom DOS floppy disk image (2.5MB,4.5MB,6.78MB…)
• Ready to be used on non-windows systems (Mac, Linux,…) ! ;)
• Simple use !

Release notes for the HxCFloppyEmulator software v2.0.15.0:

• New Loader: SpeccyDos *.SDD support added
• New Loader: Apple 2 DOS 3.3 (*.DO) & ProDOS (*.PO) raw file image added.
• New Writer: HFE file with the HDDD A2 support for Apple II (http://www.bootzero.com/HDDD_A2_v1.2/HDDD_A2v1.2.html)
• New Writer: Atari ST MSA file.
• New Writer: TRS 80 *.JV3 file. (Done by David Barr ! Thanks to him :) )
• New Writer: TRS 80 *.DMK file.
• New Writer: PC88 *.D88 file.
• FAT12 Loader/generator: Atari ST 902KB  format corrected.
• FAT12 Loader/generator: Atari ST 4.23MB format corrected.
• HFE File Writer: Track padding function corrected.
• EDE File Loader: edt & edv file support added, ASR 10 gap3 adjusted to 36.
• JV3 File Loader: Sector interleaving correctly implemented.
• IMD File Writer: No allocated sector issue corrected.
• XDMS Lib: UTF8 path support added.
• LIBSAP Lib: UTF8 path support added.
• New Track/Sector support: GCR “6 and 2″ Apple II DOS 3.3/ProDos.
• FAT12 Disk Browser:  Handle freeing corrected
• GUI – Drag & Drop Support: URI type path support added (Linux).
• GUI – Track viewer window: New buttons to enable/disable track format analysis.
• GUI – Log window: New buttons to enable/disable logs messages.

• Raw Loader – Predefined raw formats added:
  • Roland W30/S330/W50/S50/S550 DD Floppy Disk.
  • OS9 1280KB Floppy Disk.
  • Linn/Forat 9000 Floppy Disk.
  • KORG T3 3″5 HD Floppy Disk.
  • Atari ST 3″5 DD Floppy Disk
  • Standard 3″5 DOS ED Floppy Disk
  • Special 2.5MB DOS EXHD Floppy Disk
  • Special 4.5MB DOS EXHD Floppy Disk.
  • Special 6.78MB DOS EXHD Floppy Disk.

• Updated:
  • Ensoniq EPS 3″5 HD Floppy Disk : Gap3 adjusted.
  • Standard 3″5 DOS HD Floppy Disk : Gap3 adjusted.
  • Standard 3″5 DOS DD Floppy Disk : Gap3 adjusted.

Download:

• HxCFloppyEmulator v2.0.15.0 (1692)
• HxC Floppy Emulator DOS Disk Image Browse (1667)

source: hxc2001.free.fr lotharek.pl

Autopsy:

123►

The RGB cable of  Schneider (radiola/philips) VG-5000 computer is compatible with the VideoPac G7200.

from Wikipedia:

The Magnavox Odyssey², known in Europe as the Philips Videopac G7000, in Brazil as the Philips Odyssey, in the United States as the Magnavox Odyssey² and the Philips Odyssey², and also by many other names, is a video game console released in 1978.

In the early 1970s, Magnavox was an innovator in the home video game industry. They succeeded in bringing the first home video game system to market, the Odyssey, which was quickly followed by a number of later models, each with a few technological improvements (Magnavox Odyssey Series). In 1978, Magnavox, now a subsidiary of North American Philips, released the Odyssey², its new second-generation video game console.

In Europe, the Odyssey² did very well on the market. In Europe, the console was most widely known as the Philips Videopac G7000, or just the Videopac, although branded variants were released in some areas of Europe under the names Philips Videopac C52, Radiola Jet 25, Schneider 7000, and Siera G7000. Philips, as Magnavox’s Dutch parent company, used their own name rather than Magnavox’s for European marketing. A rare model, the Philips Videopac G7200, was only released in Europe; it had a built-in black-and-white monitor. Videopac game cartridges are mostly compatible with American Odyssey² units, although some games have color differences and a few are completely incompatible. A number of additional games were released in Europe that never came out in the US.

Download: Philips VideoPac G7200 Schematics (1582)

Playing Munchkin game:

source: wikipedia

It’s been six long years of Design and Testing of the FPGA Arcade Replay Board and now finally is available for purchase.

Price is 199 Euro for the version without composite/SVHS output, 229 Euro with.

FPGA Arcade Replay features:

• Very large FPGA with high IO pin count for expansion.64 MByte of DDR memory.
• Six layer PCB for high performance and stability.
• 24 bit HD DAC with DVI / HDMI / VGA and legacy 15K monitor support.
• Video line buffer / filter for highest quality output.
• 24 bit / 192KHz audio DAC.
• Flexible clock generator.
• Small board size, fits in standard itx/atx case.
• Lots of expansion for custom daughterboards or IO adapters (JAMMA for arcade cab use).
• Optional dual host USB with dedicated CPU for low latency.
• Daughterboard with Ethernet, fast USB and optional 68060 processor being designed.
• Designed from the ground up to support multiple platforms (Amiga, Atari and others)

source: fpgaarcade.com

Autopsy:

1234►

from Wikipedia:

The Texas Instruments TI-99/4A was an early home computer, released in June 1981, originally at a price of US$525. It was an enhanced version of the less successful TI-99/4 model, which was released in late 1979 at a price of $1,150. The TI-99/4A added an additional graphics mode, “lowercase” characters consisting of small capitals, and a full travel keyboard. Its predecessor, the TI-99/4, featured a calculator-style chiclet keyboard and a character set that lacked lowercase text.

The TI-99/4A’s CPU, motherboard, and ROM cartridge (“Solid State Software”) slot were built into a single console, along with the keyboard. The power regulator board is housed below and in front of the cartridge slot under the sloped area to the right of the keyboard. This area gets very hot so users commonly refer to it as the “coffee cup warmer”. The external power supply, which was different according to the country of sale, was merely a step-down transformer.

Available peripherals included a 5¼” floppy disk drive and controller, an RS-232 card comprising two serial ports and one parallel port, a P-code card for Pascal support, a thermal printer, an acoustic coupler, a tape drive using standard audio cassettes as media, and a 32 KB memory expansion card. The TI-99/4 was sold with both the computer and a monitor (a modified 13″ Zenith Color TV) as Texas Instruments could not get their RF Modulator FCC approved in time. The TI-99/4A did ship with an RF Modulator.

In the early 1980s, TI was known as a pioneer in speech synthesis, and a highly popular plug-in speech synthesizer module was available for the TI-99/4 and 4A. Speech synthesizers were offered free with the purchase of a number of cartridges and were used by many TI-written video games (notable titles offered with speech during this promotion were Alpiner and Parsec). The synthesizer used a variant of linear predictive coding and had a small in-built vocabulary. The original intent was to release small cartridges that plugged directly into the synthesizer unit, which would increase the device’s built in vocabulary. However, the success of software text-to-speech in the Terminal Emulator II cartridge cancelled that plan. Most speech synthesizers were still shipped with the door that opened on the top, although very few had the connector inside. There are no known speech modules in existence for those few units with the connector. In many games (mostly those produced by TI), the speech synthesizer had relatively realistic voices. For example, Alpiner’s speech included male and female voices and could be quite sarcastic when the player made a bad move.

Playing Alpiner Cartridge:

source: wikipedia

Autopsy:

12►

Donated By: Andrea Pierdomenico

from The Personal Computer Museum:

The PowerPad is Chalkboard’s graphics tablet. With its combination of features, reasonable price, friendly support, and wide range of software, it would be an excellent addition to your hardware.

The first thing you notice about the PowerPad is that it’s big: it measures 17 inches by 14 inches, with a drawing surface 12 inches square. It is easier to draw on than the smaller surfaces of other tablets.

The PowerPad uses 14,400 tiny digital switches to read where pressure is applied to the pad. There are 10 x 10 per inch. Unlike the surfaces of other pads, the PowerPad has no problem resolving simultaneous multiple inputs. This ability allows the PowerPad to be used as much more than just a graphics tablet: it becomes a flexible input device.

If you’ve done a little arithmetic, you may be wondering about the PowerPad’s resolution. Ten switches per inch by 12 inches equals 120 points, or pixels – not even as high resolutions as Graphics 7! However, it’s possible to design a program using the Atari’s highest-resolution screen, by “software stretching” of the resolution.

The version of Micro Illustrator ($49.45) for the PowerPad has a special feature called “Scale” that uses ,Software stretching” to let you draw pixel by pixel, even though the tablet’s resolution isn’t as high as Micro Illustrator’s.

Hardware isn’t of much use without software, but the PowerPad doesn’t come with any. However, Chalkboard offers several programs in cartridges requiring 32K of RAM for the Commodore VIC-20.

source: pcmuseum.ca

Javatari is a multiplayer Atari 2600 emulator written in pure Java with no external libs.

Features:

• Client-Server multiplayer mode. Runs great in low-latency networks such as LANs.
• Drag&Drop and Copy&Paste of ROM files or URLs. Very easy to try ROMs from websites!
• Scanlines and TV screen emulation modes.
• Real Atari console user interface.

Changelog;

• Applets can now be detached from the browser window.
• Once detached, all features are available including Full Screen.
• Full Screen is now multi-monitor aware.
• Updated, cleaner looks.

Download: Javatari JAR v3.30 (Needs Java 6) (1066)

source: javatari.org

ASAP is a player of 8-bit Atari music for modern computers and mobile devices. It emulates the POKEY sound chip and the 6502 processor.

The project was initially based on the routines from the Atari800 emulator, but the current version has a completely new original emulation core.

Changelog ASAP 3.1.4 (2013-04-29):

• Android: plays in background, can switch to next/previous/random file, opens M3U playlists, file selector can display metadata, “back” returns to parent directory.
• WASAP fixed to avoid occasional deadlock when opening files during playback.
• VLC plugin compiled for OS X.
• 64-bit RPMs.
• Fixed time detection for CMS.
• Windows Explorer displays titles for RMT, TMC, TM2.
• “Show information about the currently playing file” restored after Winamp/XMPlay restart.
• TortoiseSVN and TortoiseGit plugins don’t depend on libz-1.dll.
• asapscan calculates SAP fingerprints (contributed by Jakub Husak).
• Experimental ASAP2WAV in Perl.

Download: ASAP v3.1.4 (1636)

source: asap.sourceforge.net

FAIL is a viewer of pictures in native formats of Atari 8-bit, Atari ST, Atari Falcon and Atari Portfolio computers.

Currently the project includes:

• Fail2png – portable command-line converter to PNG files.
• FAILWin – viewer for Windows.
• Thumbnail providers for Windows Explorer and GNOME (Linux)
• Plugin for XnView.
• (de)coder for ImageMagick.
• Plugin for Imagine.
• HTML 5 based viewer.

Changelog:

• Added Atari 8-bit formats: IP2, IMN, ICN, DIN, IRG, IR2, VZI. Added “DEGAS Elite” icon (ICN). Fixed decoding of IPC. Thumbnail provider implemented for Windows 2000/XP. Fullscreen mode in HTML 5.

Download: FAIL (First Atari Image Library) v2.0.1 (1738)

source: fail.sourceforge.net

The aim of the A8CAS project is to create software to read, save and archive tapes for Atari 8-bit computers.

Early Atari computers could store their programs on Compact Cassettes. Lots of commercial software was also sold on tapes. Some of the tapes employed different tricks to prevent creating illegal copies. A8CAS aims to correctly read and write all such tapes.

A8CAS is inspired by existing utilities, Ernest R. Schreurs’ WAV2CAS and CAS2WAV. Schreurs’ tools however did not support tapes with non-standard data (copy prevention mechanisms), and reading tapes from audio files was very unreliable. A8CAS addresses both of those issues. A8CAS now provides a superset of WAV2CAS’ features.

A8CAS consists of:

A shared library, liba8cas, that contains all routines needed to read and write cassettes (support for CAS, HEX, FSK and sound files WAV, OGG, FLAC etc. is implemented). The library can be used in emulators and drivers for SIO interfaces such as SIO2PC; a set of command-line tools, a8cas-tools, that contains a8cas-convert, a utility similar to WAV2CAS/CAS2WAV. The tools use the A8CAS library; a patch for the Atari800 emulator, that allows to load and save tape files (CAS, HEX, WAV, OGG, …) using liba8cas.

Changelog:

Liba8cas:

• Added the A8CAS_flush() function to API, which ends any chunk being written and writes data from buffers to disk.
• Fixed the inability to adjust stop bit length tolerance during recognition of data blocks. It was hardcoded at 0.25, now it uses the value of the A8CAS_PARAM_BLOCK_HEADER_DEVIATION parameter.
• Fixed crashes when setting A8CAS_PARAM_BLOCK_HEADER_LENGTH lower than 20.

A8cas-tools:

• Fixed a bug in a8cas-convert. When user provided an invalid value to a command-line parameter, the program silently ignored the parameter instead of warning the user

Download: A8CAS new Tools & Libs (1826)

source: a8cas.sourceforge.net