[情报] iFixit:A6的ARM核心竟然是手工Layout

楼主: chrispherd (WTF)   2012-09-26 11:18:14
原文在这:http://ppt.cc/rv0u
这:http://ppt.cc/uDZ7
还有这:http://ppt.cc/8jNp
According to iFixIt:
When compared to the rigid, efficient layout of the GPU cores directly below
it, the layout of the ARM cores looks a little homespun—at first.
- Generally, logic blocks are automagically laid out with the use of advanced
computer software. However, it looks like the ARM core blocks were laid out
manually—as in, by hand.
- A manual layout will usually result in faster processing speeds, but it is
much more expensive and time consuming.
- The manual layout of the ARM processors lends much credence to the rumor
that Apple designed a custom processor of the same caliber as the all-new
Cortex-A15, and it just might be the only manual layout in a chip to hit the
market in several years.
_____________________
虽然我对Intrinsity真的采取Full Costum保持怀疑,Manual Layout这个说法也太笼统。
不过感觉得出来阿婆已经开始朝用 ARM 架构授权而自行开发处理器的路发展。现在在A6
这个看到高度客制化的成果,又看到IP5一无可取得超烂发表会,难道阿婆开始要走硬件
路线吗?
作者: saladim (杀拉顶)   2012-09-26 12:02:00
Steve Jobs事业一值以来都想搞好硬件...但是都是软件部分
作者: saladim (杀拉顶)   2012-09-26 12:03:00
跟硬件合体才有以后的发展...看看那精美的Next工作站.....
作者: obov (来嘘苍真)   2012-09-26 12:18:00
做cpu的custom design custom layout有啥好奇怪的
楼主: chrispherd (WTF)   2012-09-26 12:37:00
阿婆这样做就很怪,重点是没必要自己来。不像AMD需要这
楼主: chrispherd (WTF)   2012-09-26 12:38:00
么辛苦的去赚那少少的$$$
作者: forever215   2012-09-26 12:39:00
Apple 是拿来独占市场..跟AMD 拿出去卖的不同..
作者: forever215   2012-09-26 12:40:00
未来就算拿其他CPU 也没办法跑iOS系统..
作者: brightest (fff)   2012-09-26 13:10:00
全部CUSTOM不可能吧 应该有一些macro是
作者: dslite (呼呼)   2012-09-26 14:20:00
setup/hold time自己猜?
作者: obov (来嘘苍真)   2012-09-26 14:43:00
PA-semi里面的都是一些老牌cpu咖 当然知道怎么搞最好
作者: obov (来嘘苍真)   2012-09-26 14:44:00
apple扶持自家原pa-semi团队的人目的也很清楚阿
作者: obov (来嘘苍真)   2012-09-26 14:45:00
就是以后逐步摆脱intel
作者: aks74 (尼特武士)   2012-09-26 15:42:00
个人觉得阿婆这样的模式是Fabless的最佳典范, 通包且筑高墙
作者: MiniArse (åž‹ç”·)   2012-09-26 16:39:00
我觉得不可能是 full customized..顶多 floorplan 调一下..placement 调一下..
作者: iincho (世界的尽头)   2012-09-26 20:20:00
全部自己来的最佳典范....XD
作者: ptta (ptta)   2012-09-26 23:34:00
不意外.... structural placement

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