Difference between revisions of "Sega System 1"

Latest revision as of 08:03, 16 November 2024

Sega System 1

Manufacturer: Sega Enterprises, Ltd.

Release

Date

RRP

Code

JP

1982-12

¥?

?

World

1983-07

?

The Sega System 1 (セガシステム 1) is an arcade platform officially debuted by Sega in 1983,^[1] based on earlier 1982 prototype hardware. It is a Z80-based platform and the first in the decade-long "System" series of arcade boards.

The System 1 was a relatively popular arcade board for its day, supported not only by Sega, but by Japanese developers Coreland and VIC Tokai between 1983 and 1987. In 1985 it was succeeded by the slightly more powerful Sega System 2 board, though new games were released for both systems concurrently. Many of the System 1's games were ported to the SG-1000 and Sega Master System consoles.

Technical specifications

System 1

Board composition: One board

Master clock rate: 19.99982 MHz^[2]

Main CPU: Zilog Z80 @ 4 MHz (8/16-bit instructions, 0.58 MIPS)
Sound CPU: Zilog Z80 @ 4 MHz (8/16-bit instructions, 0.58 MIPS)
Sound chips: Sega SN76496 @ 4 MHz, Sega SN76496 @ 2 MHz
MCU: Intel 8751^[2]

Graphics

Graphics chipset:^[2]

Sega 315-5011 sprite line comparator: 16‑bit line buffer RAM (14.999865 MHz, 29.99973 MB/s),^[3]^[4] 9.99991 MHz sprite line buffer render/pixel clock, 4.999955 MHz sprite line buffer scan/erase clock^[2]^[5]
Sega 315-5012 sprite generator
Sega 315-5049 tilemap generator

Video resolution: 256×224 (active), 640×260 (overscan)^[2]

Scanlines: 260 (224 active, 36 VBlank)
Pixel clock rate: 9.99991 MHz (3.446099 MHz active, 6.55381 MHz HBlank/VBlank)
Refresh rate: 60.0952 Hz (VSync)

Color palette: 4096^[6]

Colors on screen: 2048^[2]

Sprite plane: Line buffer, double buffering, 16 colors per sprite, sprite flipping, hardware collision detection^[6]^[2]

Sprites on screen: 128 sprites (2 KB sprite attributes, 16 bytes per sprite)^[5]
Sprite sizes: 8×8 to 256×224 texels
Line buffer fillrate: 9.99991 MPixels/s
Sprites per scanline: 32 sprites, 640 texels

Background planes: 2 tilemap layers (1 static, 1 scrolling), 8×8 tiles^[6]^[2]

Tilemap sizes: 256×256 for both planes

Memory

Memory: 155.75 KB (52 KB main, 93.75 KB video, 10 KB sound)
RAM: 19.5 KB^[2]

Main: 4 KB (8-bit, 4 MHz, 4 MB/s)^[7]
Video: 13.5 KB SRAM (4 KB video, 2 KB sprite attributes, 1.5 KB sprite line buffers,^[6]^[5] 2 KB palette, 4 KB collision)
Sound: 2 KB

ROM: 136.25 KB

Main: 48 KB
Video: 80.25 KB (48 KB tiles, 32 KB sprites, 256 bytes palette)
Sound: 8 KB

Prototype

Super Locomotive in 1982 ran on prototype arcade hardware that was very similar to the Sega System 1 later released in 1983. Super Locomotive had largely identical specifications, but with the following differences:^[8]^[9]^[10]

Graphics

Graphics chipset:

Sega 315-5011 sprite line comparator: 16‑bit line buffer RAM (11.79648 MHz, 23.59296 MB/s), 7.86432 MHz sprite line buffer render clock, 3.93216 MHz sprite line buffer scan/erase/pixel clock^[5]

Video resolution: 248×224 (active), 256×256 (overscan)

Pixel clock rate: 3.93216 MHz
Refresh rate: 60 Hz

Color palette: 1568

Colors on screen: 768

Sprite plane:

Sprites on screen: 32 sprites (512 bytes sprite attributes, 16 bytes per sprite), 64 sprites with raster interrupt
Sprite sizes: 8×8 to 248×224 texels
Line buffer fillrate: 7.86432 MPixels/s
Sprites per scanline: 32 sprites, 512 texels

Memory

Memory: 113.3125 KB (50 KB main, 53.3125 KB video, 10 KB sound)
RAM: 7.78125 KB

Main: 2 KB
Video: 3.78125 KB SRAM (1.75 KB video, 512 bytes sprite atttributes, 1.5 KB sprite line buffers, 32 bytes scrolling)
Sound: 2 KB

ROM: 105.53125 KB

Main: 48 KB
Video: 49.53125 KB (48 KB graphics, 1.53125 KB palette)
Sound: 8 KB

List of games

Note that Super Locomotive is listed as a System 1 game for using similar technology, but was not distributed on a System 1 board.

4-D Warriors (1985)
Block Gal (1987)
Brain (1986)
Bullfight (1984)
Choplifter (1985)
Flicky (1984)
Gardia (1986)
I'm Sorry (1985)
Mister Viking (1984)
My Hero (1985)
Ninja Princess (1985)
Pitfall II: The Lost Caverns (1985)
Rafflesia (1986)
Regulus (1983)
Spatter (1984)
Star Jacker (1983)
Super Locomotive (1982)
SWAT (1984)
Teddy Boy Blues (1985)
Up'n Down (1983)
Water Match (1984)
Wonder Boy (No results?)

Production credits

Hideki Sato

Source:

Developer mentions^[11]^[12]

Photo gallery

PCB 1
PCB 2

References

Sega arcade boards
Originating in arcades
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 VIC Dual G80 Zaxxon VCO Object System 1 LaserDisc Appoooh Hang-On System 2 System 16 OutRun Gigas X Board Y Board System 24 System 18 System 32 Model 1 Model 2 H1 Board Model 3
Console-based hardware
84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 SG-1000 System E System C Mega-Tech System Mega Play Sega Titan Video NAOMI Hikaru NAOMI 2 Atomiswave System SP Chihiro Triforce
PC-based hardware
05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Lindbergh Europa-R RingEdge RingWide RingEdge 2 Nu Nu 1.1 Nu 2 ALLS

[.5Bhttp:.2F.2Fsega.jp.2Ffb.2Fsegahard.2Fsc3000.2Fgallery.html_1983_Timeline_.28Sega_Corporation.29.5D-1] 1983 Timeline (Sega Corporation)

[.5Bhttps:.2F.2Fgithub.com.2Fmamedev.2Fmame.2Fblob.2Fmaster.2Fsrc.2Fmame.2Fdrivers.2Fsystem1.cpp_Sega_System_1_.2F_System_2_.28MAME.29.5D-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 ^2.8 Sega System 1 / System 2 (MAME)

[:File:Regulus_System1_US_Manual.pdf_p8-3] File:Regulus System1 US Manual.pdf, page 8

[:File:HangOn_Schematics.pdf_p4-4] File:HangOn Schematics.pdf, page 4

[Sega_Pre-System_16_hardware_notes_.282004-03-29.29-5] 5.0 ^5.1 ^5.2 ^5.3 Sega Pre-System 16 hardware notes (2004-03-29)

[.5Bhttps:.2F.2Fgithub.com.2Fmamedev.2Fmame.2Fblob.2Fmaster.2Fsrc.2Fmame.2Fvideo.2Fsystem1.cpp_System1_.2F_System_2_video_hardware_.28MAME.29.5D-6] 6.0 ^6.1 ^6.2 ^6.3 System1 / System 2 video hardware (MAME)

[:File:Regulus_System1_US_Manual.pdf_p14-7] File:Regulus System1 US Manual.pdf, page 14

[.5Bhttps:.2F.2Fgithub.com.2Fmamedev.2Fmame.2Fblob.2Fmaster.2Fsrc.2Fmame.2Fdrivers.2Fsuprloco.cpp_Super_Locomotive_.28MAME.29.5D-8] Super Locomotive (MAME)

[.5Bhttps:.2F.2Fgithub.com.2Fmamedev.2Fmame.2Fblob.2Fmaster.2Fsrc.2Fmame.2Fvideo.2Fsuprloco.cpp_Super_Locomotive_video_hardware_.28MAME.29.5D-9] Super Locomotive video hardware (MAME)

[.5Bhttp:.2F.2Fwww.system16.com.2Fhardware.php.3Fid.3D688_Sega_Z80_Based_Hardware_.28System_16.29.5D-10] Sega Z80 Based Hardware (System 16)

[:File:SS16CSTV2_Album_JP_Booklet.pdf_p5-11] File:SS16CSTV2 Album JP Booklet.pdf, page 5

[https:.2F.2Fweb.archive.org.2Fweb.2F20210205150032.2Fhttps:.2F.2Fwww.4gamer.net.2Fgames.2F999.2FG999905.2F20210126043.2F-12] ttps://www.4gamer.net/games/999/G999905/20210126043/ (Wayback Machine: 2021-02-05 15:00)

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[4]

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[8]

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[12]

@@ Line 4: / Line 4: @@
 | imgwidth=320
 | name=
-| maker=[[Sega]]
+| maker=[[Sega Enterprises, Ltd.]]
 | processor=[[Zilog Z80]]
-| releases={{releases
+| releases={{releasesArcade
-| arcade_date_jp_1=1982-12
+| system_date_jp_1=1982-12
-| arcade_type_jp_1=prototype
+| system_type_jp_1=prototype
-| arcade_date_world=1983-07
+| system_date_world=1983-07
 }}
 }}
-The '''Sega System 1''' is an [[arcade]] platform introduced by [[Sega]] in 1983,{{ref|http://sega.jp/fb/segahard/sc3000/gallery.html}} based on earlier 1982 prototype hardware. It is a [[Z80]]-based platform and the first in the decade-long "[[:Category:Sega System series|System]]" series of arcade boards.
+The '''Sega System 1''' (セガ システム 1) is an [[arcade]] platform officially debuted by [[Sega]] in 1983,{{ref|[http://sega.jp/fb/segahard/sc3000/gallery.html 1983 Timeline (Sega Corporation)]}} based on earlier 1982 prototype hardware. It is a [[Z80]]-based platform and the first in the decade-long "[[:Category:Sega System series|System]]" series of arcade boards.
 The System 1 was a relatively popular arcade board for its day, supported not only by Sega, but by Japanese developers [[Coreland]] and [[VIC Tokai]] between 1983 and 1987. In 1985 it was succeeded by the slightly more powerful [[Sega System 2]] board, though new games were released for both systems concurrently. Many of the System 1's games were ported to the [[SG-1000]] and [[Sega Master System]] consoles.
-==Specifications==
+==Technical specifications==
 ===System 1===
 {{multicol|
 * Board composition: One board
-** Master clock rate: 19.99982 MHz
+:* Master clock rate: 19.99982 MHz{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
 * Main CPU: [[Zilog Z80]] @ 4&nbsp;MHz (8/16-bit instructions, 0.58&nbsp;[[wikipedia:Instructions per second|MIPS]])
 * Sound CPU: Zilog Z80 @ 4&nbsp;MHz (8/16-bit instructions, 0.58&nbsp;MIPS)
 * [[wikipedia:Sound chip|Sound chips]]: Sega [[SN76489|SN76496]] @ 4&nbsp;MHz, Sega SN76496 @ 2&nbsp;MHz
+* [[wikipedia:Microcontroller|MCU]]: Intel 8751{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
+}}
+====Graphics====
+{{multicol|
 * Graphics chipset:{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
-** Sega 315-5011 sprite line comparator
+:* Sega 315-5011 sprite line comparator: 16‑bit line buffer RAM (14.999865 MHz, 29.99973 MB/s),{{fileref|Regulus System1 US Manual.pdf|page=8}}{{fileref|HangOn Schematics.pdf|page=4}} 9.99991 MHz sprite line buffer render/pixel clock, 4.999955 MHz sprite line buffer scan/erase clock{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}{{intref|Sega Pre-System 16 hardware notes (2004-03-29)}}
-** Sega 315-5012 sprite generator
+:* Sega 315-5012 sprite generator
-** Sega 315-5049 tilemap chip
+:* Sega 315-5049 tilemap generator
-* [[wikipedia:Microcontroller|MCU]]: Intel 8751{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
-* [[RAM]]: 82&nbsp;[[Byte|KB]]{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
-** Main: 4&nbsp;KB
-** [[VRAM|Video]]: 12&nbsp;KB (4&nbsp;KB video, 2&nbsp;KB sprites, 2&nbsp;KB palette, 4&nbsp;KB collision)
-** Sound: 2&nbsp;KB
-** MCU: 64&nbsp;KB
 * Video resolution: 256×224 (active), 640×260 ([[wikipedia:Overscan|overscan]]){{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
-** Scanlines: 260 (224 active, 36 [[wikipedia:Vertical blanking interval|VBlank]])
+:* Scanlines: 260 (224 active, 36 [[wikipedia:Vertical blanking interval|VBlank]])
-** [[Pixel]] clock rate: 9.99991 MHz (3.446099 MHz active, 6.55381 MHz [[wikipedia:Horizontal blanking interval|HBlank]]/VBlank)
+:* [[Pixel]] clock rate: 9.99991 MHz (3.446099 MHz active, 6.55381 MHz [[wikipedia:Horizontal blanking interval|HBlank]]/VBlank)
-** Refresh rate: 60.0952&nbsp;Hz ([[wikipedia:Vertical sync|VSync]])
+:* Refresh rate: 60.0952&nbsp;Hz ([[wikipedia:Vertical sync|VSync]])
 * [[Palette|Color palette]]: 4096{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/video/system1.cpp System1 / System 2 video hardware (MAME)]}}
-** Colors on screen: 2048{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
+:* Colors on screen: 2048{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
-* [[Sprite]] plane: Line buffer, double buffering, 32 sprites on screen, 16 colors per sprite, sprite flipping, hardware collision detection{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/video/system1.cpp System1 / System 2 video hardware (MAME)]}}{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
+* [[Sprite]] plane: Line buffer, double buffering, 16 colors per sprite, sprite flipping, hardware collision detection{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/video/system1.cpp System1 / System 2 video hardware (MAME)]}}{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
-** Sprite sizes: 8×8 to 256×224 [[texel]]s
+:* Sprites on screen: 128 sprites (2 KB sprite attributes, 16 bytes per sprite){{intref|Sega Pre-System 16 hardware notes (2004-03-29)}}
-** Line buffer [[fillrate]]: 6.55381 [[Pixel|MPixels/s]]
+:* Sprite sizes: 8×8 to 256×224 [[texel]]s
-** Texels per scanline: 384 (active scanlines) to 640 (VBlank scanlines)
+:* Line buffer [[fillrate]]: 9.99991 [[Pixel|MPixels/s]]
-** Sprites per scanline: 32
+:* Sprites per scanline: 32 sprites, 640 texels
 * Background planes: 2 [[Tile Layer|tilemap]] layers (1 static, 1 scrolling), 8×8 tiles{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/video/system1.cpp System1 / System 2 video hardware (MAME)]}}{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
-** Tilemap sizes: 256×256 for both planes
+:* Tilemap sizes: 256×256 for both planes
+}}
+====Memory====
+{{multicol|
+* Memory: 155.75 [[Byte|KB]] (52 KB main, 93.75 KB video, 10 KB sound)
+* [[RAM]]: 19.5&nbsp;KB{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/system1.cpp Sega System 1 / System 2 (MAME)]}}
+:* Main: 4&nbsp;KB (8-bit, 4 MHz, 4 MB/s){{fileref|Regulus System1 US Manual.pdf|page=14}}
+:* [[VRAM|Video]]: 13.5&nbsp;KB [[SRAM]] (4&nbsp;KB video, 2&nbsp;KB sprite attributes, 1.5 KB sprite line buffers,{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/video/system1.cpp System1 / System 2 video hardware (MAME)]}}{{intref|Sega Pre-System 16 hardware notes (2004-03-29)}} 2&nbsp;KB palette, 4&nbsp;KB collision)
+:* Sound: 2&nbsp;KB
+* [[ROM]]: 136.25 KB
+:* Main: 48 KB
+:* Video: 80.25 KB (48 KB tiles, 32 KB sprites, 256 [[byte]]s palette)
+:* Sound: 8 KB
 }}
@@ Line 52: / Line 64: @@
 ''[[Super Locomotive]]'' in 1982 ran on prototype arcade hardware that was very similar to the Sega System 1 later released in 1983. ''Super Locomotive'' had largely identical specifications, but with the following differences:{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/suprloco.cpp Super Locomotive (MAME)]}}{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/video/suprloco.cpp Super Locomotive video hardware (MAME)]}}{{ref|1=[http://www.system16.com/hardware.php?id=688 Sega Z80 Based Hardware (System 16)]}}
+====Graphics====
 {{multicol|
 * Graphics chipset:
-** Sega 315-5011 sprite line comparator
+:* Sega 315-5011 sprite line comparator: 16‑bit line buffer RAM (11.79648 MHz, 23.59296 MB/s), 7.86432 MHz sprite line buffer render clock, 3.93216 MHz sprite line buffer scan/erase/pixel clock{{intref|Sega Pre-System 16 hardware notes (2004-03-29)}}
-** Sega 315-5012 sprite generator
 * Video resolution: 248×224 (active), 256×256 (overscan)
-** [[Pixel]] clock rate: 4&nbsp;MHz
+:* [[Pixel]] clock rate: 3.93216&nbsp;MHz
-** Refresh rate: 60&nbsp;Hz
+:* Refresh rate: 60&nbsp;Hz
 * Color palette: 1568
-** Colors on screen: 768
+:* Colors on screen: 768
 * [[Sprite]] plane:
-** Sprite sizes: 8×8 to 248×224 [[texel]]s
+:* Sprites on screen: 32 sprites (512 bytes sprite attributes, 16 bytes per sprite), 64 sprites with raster interrupt
-** Line buffer [[fillrate]]: 4 [[Pixel|MPixels/s]]
+:* Sprite sizes: 8×8 to 248×224 [[texel]]s
-** Texels per scanline: 260
+:* Line buffer [[fillrate]]: 7.86432 [[Pixel|MPixels/s]]
+:* Sprites per scanline: 32 sprites, 512 texels
 }}
-==Gallery==
+====Memory====
+{{multicol|
+* Memory: 113.3125 [[Byte|KB]] (50 KB main, 53.3125 KB video, 10 KB sound)
+* [[RAM]]: 7.78125 KB
+:* Main: 2 KB
+:* Video: 3.78125 KB [[SRAM]] (1.75 KB video, 512 [[byte]]s sprite atttributes, 1.5 KB sprite line buffers, 32 bytes scrolling)
+:* Sound: 2 KB
+* [[ROM]]: 105.53125 KB
+:* Main: 48 KB
+:* Video: 49.53125 KB (48 KB graphics, 1.53125 KB palette)
+:* Sound: 8 KB
+}}
+==List of games==
+Note that ''[[Super Locomotive]]'' is listed as a System 1 game for using similar technology, but was not distributed on a System 1 board.
+{{BulletPointGameList|SYS1}}
+==Production credits==
+{{creditstable|
+*[[Hideki Sato]]
+| source=Developer mentions{{fileref|SS16CSTV2 Album JP Booklet.pdf|page=5}}{{ref|https://web.archive.org/web/20210205150032/https://www.4gamer.net/games/999/G999905/20210126043/}}
+| console=Arcade
+}}
+==Photo gallery==
 <gallery>
-File:System1 PCB1.jpg|PCB 1
+System1 PCB1.jpg|PCB 1
-File:System1 PCB2.jpg|PCB 2
+System1 PCB2.jpg|PCB 2
 </gallery>
-==List of Games==
-{{multicol|
-* ''[[Super Locomotive]]'' (1982)
-* ''[[Regulus]]'' (1983)
-* ''[[Star Jacker]]'' (1983)
-* ''[[Up'n Down]]'' (1983)
-* ''[[Bull Fight]]'' (1984)
-* ''[[Flicky]]'' (1984)
-* ''[[Mister Viking]]'' (1984)
-* ''[[Spatter]]'' (1984)
-* ''[[SWAT]]'' (1984)
-* ''[[Water Match]]'' (1984)
-* ''[[4D Warriors]]'' (1985)
-* ''[[Choplifter]]'' (1985)
-* ''[[I'm Sorry]]'' (1985)
-* ''[[My Hero]]'' (1985)
-* ''[[Pitfall II]]'' (1985)
-* ''[[Sega Ninja]]'' (1985)
-* ''[[Teddy Boy Blues]]'' (1985)
-* ''[[Brain]]'' (1986)
-* ''[[Gardia]]'' (1986)
-* ''[[Noboranka]]'' (1986)
-* ''[[Rafflesia]]'' (1986)
-* ''[[Wonder Boy]]'' (also released on [[Sega System 2]]) (1986)
-* ''[[Wonder Boy Deluxe]]'' (1986)
-* ''[[Block Gal]]'' (1987)
-}}
 ==References==
-<references />
+<references/>
 {{Sega Arcade Boards}}
 [[Category:Sega System series]]

Difference between revisions of "Sega System 1"

From Sega Retro

Latest revision as of 08:03, 16 November 2024

Contents

Technical specifications

System 1

Graphics

Memory

Prototype

Graphics

Memory

List of games

Production credits

Photo gallery

References