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雅达利 2600拆解

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正翻译步骤 8

步骤 8
Atari 2600 Teardown: 步骤 0 中的图像 1，1

  • The top two chips are the 6532 Ram-I/O-Timer (RIOT) chip and MOS Technology's 6507 CPU (a slimmer version of the more popular 6502). By the current revision, they were manufactured by Synertek and Rockwell, respectively.

  • Atari's custom chip, the Television Interface Adapter (TIA) is the moneymaker of the 2600, as it allowed for multiple colors, increased graphic capabilities, and sound.

  • Because memory was so expensive during the 2600's design, the video processor has no external RAM. As a result the CPU must send video data to the TIA one line of video at a time.

  • There are six components of video that the TIA can create: The playing field, Two sprites (8 pixel lines), a "ball" (single pixel), and two "missiles" (two pixel lines). Combinations of these elements allowed for the complex video games witnessed in the 2600.

上面两个芯片是6532 内存I / O定时器和MOS科技的6507 CPU（精简版6502）现在这个硬件版本是由Synertek和Rockwell分别生产的。

雅达利的定制芯片 电视界面适配器（TIA）是雅达利的赚钱利器，它能增强显示和声音效果，让更多颜色显示在屏幕上。

2600设计的时代内存太贵了，视频处理器没有安装外部内存，导致CPU处理完的数据只能一次一条线地发送到 TIA上面。

2600的TIA只能处理6种元素，游戏背景场地，两个精灵（8像素线），一个球（单像素点）和两个火箭（2像素线），组合成的画面的游戏。

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