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Ville Linde WIP:Konami Cobra基板模拟启动

来源: 作者: 时间:2008-08-01 点击:
Ville Linde WIP:Konami Cobra基板模拟启动,这是一块街机的基板年代比较长了,采用的是IBM POWERPC的CPU,下面是一些经典的游戏截图,如街机版的魂斗罗,恶魔城这类的。

Konami Cobra基板所有的游戏列表如下:
Combat School / Boot Camp
Fast Lane
Flak Attack / MX5000
Gryzor / Contra / Kontora
Haunted Castle / Akuma-Jou Dracula
Trick Trap / Labyrinth Runner



原文如下:
  • July 31, 2008 - Unfinished business

    One of the things I worked on about half a year ago, was a driver for Konami Cobra system.

    Cobra is a very complex system, comprising of 3 boards with a PowerPCCPU on each one. The first board with PPC603, can be considered as the"main" board as it runs the main game program. The second board has aPPC403, and does all the I/O handling, hard disk access and sound. Thelast board is a graphics board, with a PPC604 running a series ofcustom graphics chips (possibly designed by IBM...)

    Cobra doesn't seem to have 2D graphics capabilities at all, so gettingsomething on screen wasn't exactly easy ;-) The screenshot below showssome hex numbers that are a debugging feature built in to Cobrasoftware. Each number represents the "debug state" of the softwarerunning on each of the three boards. The numbers themselves arerendered as textured quads, and the whole process is done entirely onthe graphics board. This of course required the emulation of thegraphics board FIFOs, command buffers and texture uploading... ;-)


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