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This system is a MSX Turbo R. It is one of the last MSX computer ever made. It is the successor of the MSX 2+ systems and thus has many characteristics in common. New features include a new PCM sound chip which can sample sound up to 15 KHz and replay up to 22 kHz. There is an internal microphone for the PCM unit. There is also an additional CPU, the R800 wich is a 16-bit RISC processor. The user can select the CPU (Z80 or R800) by software.

The FS-A1 GT follows the FS-A1 ST, and so introduces some improvements over it. Due to some minor bugs discovered, the mainboard is a bit different (e.g. FM-PAC part is redesigned to decrease influence of the noise from computer's digital parts). The MSX-BASIC, version 4.1 instead of 4.0, has MIDI extensions. Indeed the FS-A1 GT has a MSX-MIDI interface built-in with MIDI in/out connectors! The RAM size is of 512 KB, instead of 256 KB. The MSX-DOS is now version V2.31. There is a SVHS video port and the size of the SRAM is now 32 KB.

MSX View, developed by ASCII & HAL, is a Windows-style graphic interface. It is built-in ROM. The OS is delivered with programs such as Page Edit, PageView, Page Link, VShell, VTed, VPaint and VDraw) on 512kB ROM DISK (C: drive). There is no tape recorder port, so strictly speaking, it's not an MSX!

Panasonic stopped the production of the Turbo R when they launched the 3DO game system in 1992. They failed with this system and never returned to MSX. Lot of extensions, however, were produced by third-party companies to enhance the Turbo R, among them, an OPL4 Sound Card, a VGA card with lot of hardware sprites and IDE or SCSI interfaces.


Source : The Ultimate MSX FAQ David Heremans reports:
There is a mixed mode where you can have +4096 colors simultaneously with an extra 16 indexed colors so that still pictures in full color can be displayed while the index palatte of 16 redefinable colors can be used for all kind of effects. But trying to display that would probably be a litle long for the small space reserved for it on the page.

Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).$zsjTpFR0oYQ

please help
trying to convert 8bit video for sam coupe
this is still not mode 3 interlaced with hmpr bit 5$6 CLUT alterations per scan line HELP we only need a DMA...
masterdos/basic atom lite support

Thursday 28th February 2013
Roger Jowett (Ulster)
sam koopvidsear


TYPE  Home Computer
YEAR  1991
BUILT IN LANGUAGE  MSX Basic V4.1, MSX View, Japanese text editor, a spread sheat and a sample program
KEYBOARD  Full-stroke keyboard, JIS standard layout, 91 keys
built-in software selector switch, reset button, disk removal button, auto-fire speed adjustment knob, Pause button
CPU  Zilog Z80A and R800 (16 Bit RISC)
SPEED  Z80A: 3.579545 MHz / R800: 28.636360 MHz
CO-PROCESSOR  Video chip must be compatible with the Yamaha VG9938 or V9958, sound chip must be compatible with the General Instruments AY8910
RAM  512 KB + 32 KB S-RAM (for backup)
VRAM  128 KB
ROM  32 KB (BASIC/BIOS ROM) + 32 KB (SUBROM MSX-BASIC V4.0) + 16 KB (MIDI-Basic ROM) + 16 KB (MSX Disk Basic) + 16 KB (Kanji Basic) + 512 KB (MSX View) + 2 MB (Japanese text editor, a spread sheat and a sample program) + MSX JE ROM (with approx. 32000 characters)
TEXT MODES  80 x 25 / 40 x 25 / 32 x 25
GRAPHIC MODES  64 x 48 / 256 x 192 / 256 x 212 / 512 x 212 / 512 x 424
COLORS  16 / 16 - 256 / 16 among 512 / 19268
SOUND  AY-8910 + YM-2413 chip (9 channels of music) + PCM 8-bit synthesizer = 13 available channels!
MSX-MIDI interface built-in
SIZE / WEIGHT  425 (W) x 292 (D) x 89 (H) mm / 3.4 Kg
I/O PORTS  Joystick (2), Cartridge (2), RGB video output, Composite Video, SVHS output, Centronics, Microphone output, MIDI interface (IN & OUT), User port
BUILT IN MEDIA  Built-in 3.5'' disk drive (720 KB)
POWER SUPPLY  100V±10% 50/60Hz, 22w
PRICE  99,800 yen (Japan, 1991)

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