如果你对操作系统设计感兴趣，我强烈推荐买来通读一下 http://www.amazon.com/Fortress-Rochester-Inside-Story-iSerie....。i OS 跟 UNIX 大相径庭，这本书看得我大开眼界。里面有些做法相当有远见。硬件微架构从根本上就……
If you're into operating systems design I defiantly recommend buying and reading through http://www.amazon.com/Fortress-Rochester-Inside-Story-iSerie.... The i OS is very different than UNIX and this book was quite enlightening to me. Some of the stuff done is quite visionary. The hardware micro-architecture has fundamentally…
…space for tag bits. When the AS/400 was moved to POWER processors, IBM added extensions for OS/400 called PowerPC AS[0], and uses some "magic" to store a tag bit in the ECC bits of standard RAM. Also, "Fortress Rochester" by Frank Soltis (the follow up to Inside the AS/400) gives a detailed look at the differences compared to other systems. [0] https://www.devever.net/~hl/ppcas
……对上层完全透明，也就是说，如果一个对象不在内存里，它就会自动把它 page 进来。System/38 等系统的设计师 Frank Soltis 围绕它写过两本很有意思的书——《Inside The AS/400》以及它的第二版《Fortress Rochester: Inside the iSeries》。可惜都绝版了，价格被炒得死贵，真后悔当初把我的那本送人了。
…transparent to higher layers, i.e. if an object isn't in ram it will page it in.. The designer of System/38 etc. Frank Soltis wrote a couple of interesting books on it - Inside The AS/400 and its 2nd edition Fortress Rochester: Inside the iSeries. They're out of print and expensive unfortunately, I wish I hadn't gave my copy away.
刚读完 Frank Soltis 写的《Fortress Rochester》，他是 IBM System38/OS400/iSeries 软件背后的总设计师。这是一本令人着迷的书，以其蕴含的技术细节密度而言写得极其通俗易懂，展现了截然不同的选择是如何……
I just finished reading "Fortress Rochester" by Frank Soltis, the designer behind the IBM System38/OS400/iSeries sw. It's a fascinating book, very approachable for the density of the technical detail contained, and shows how very different choices…
…moment) Inside the AS/400 [1] by Frank Soltis. He was the father of the System/38 /AS400, and also worked on the Cell processor. I haven't read this edition, but I did read the following edition called 'Fortress Rochester', and it is a good and detailed overview of the system - history, design choices, and hardware/software. As for RPG, it was made to be familiar to punch-card operators/programmers so they could switch…
> 刚读完 Frank Soltis 写的《Fortress Rochester》，他是 IBM System38/OS400/iSeries 软件背后的总设计师。archive.org 上有前一个版本，同样是 Frank Soltis 写的《Inside the AS/400》：https://archive.org/details/insideas4000000solt/
> I just finished reading "Fortress Rochester" by Frank Soltis, the designer behind the IBM System38/OS400/iSeries sw. There's a copy of the previous version, Inside the AS/400, also by Frank Soltis on archive.org https://archive.org/details/insideas4000000solt/
如果你对操作系统设计感兴趣，我强烈推荐买来通读一下 http://www.amazon.com/Fortress-Rochester-Inside-Story-iSerie....。i OS 跟 UNIX 大相径庭，这本书看得我大开眼界。里面有些做法相当有远见。硬件微架构从根本上就……
If you're into operating systems design I defiantly recommend buying and reading through http://www.amazon.com/Fortress-Rochester-Inside-Story-iSerie.... The i OS is very different than UNIX and this book was quite enlightening to me. Some of the stuff done is quite visionary. The hardware micro-architecture has fundamentally…
……放标记位（tag bits）的空间。当 AS/400 迁移到 POWER 处理器时，IBM 为 OS/400 增加了名为 PowerPC AS[0] 的扩展，并用了一些“黑魔法”把标记位存到了标准 RAM 的 ECC 位中。另外，Frank Soltis 写的《Fortress Rochester》（《Inside the AS/400》的续作）详细剖析了它与其他系统的不同之处。[0] https://www.devever.net/~hl/ppcas
…space for tag bits. When the AS/400 was moved to POWER processors, IBM added extensions for OS/400 called PowerPC AS[0], and uses some "magic" to store a tag bit in the ECC bits of standard RAM. Also, "Fortress Rochester" by Frank Soltis (the follow up to Inside the AS/400) gives a detailed look at the differences compared to other systems. [0] https://www.devever.net/~hl/ppcas
……对上层完全透明，也就是说，如果一个对象不在内存里，它就会自动把它 page 进来。System/38 等系统的设计师 Frank Soltis 围绕它写过两本很有意思的书——《Inside The AS/400》以及它的第二版《Fortress Rochester: Inside the iSeries》。可惜都绝版了，价格被炒得死贵，真后悔当初把我的那本送人了。
…transparent to higher layers, i.e. if an object isn't in ram it will page it in.. The designer of System/38 etc. Frank Soltis wrote a couple of interesting books on it - Inside The AS/400 and its 2nd edition Fortress Rochester: Inside the iSeries. They're out of print and expensive unfortunately, I wish I hadn't gave my copy away.
刚读完 Frank Soltis 写的《Fortress Rochester》，他是 IBM System38/OS400/iSeries 软件背后的总设计师。这是一本令人着迷的书，以其蕴含的技术细节密度而言写得极其通俗易懂，展现了截然不同的选择是如何……
I just finished reading "Fortress Rochester" by Frank Soltis, the designer behind the IBM System38/OS400/iSeries sw. It's a fascinating book, very approachable for the density of the technical detail contained, and shows how very different choices…
……这会儿）Frank Soltis 写的《Inside the AS/400》[1]。他是 System/38 和 AS400 之父，也参与过 Cell 处理器的研发。我没读过这一版，但我读了它的下一版，叫《Fortress Rochester》，对整个系统做了一个非常棒且详尽的综述——包括历史背景、设计取舍以及软硬件架构。至于 RPG，它生来就是为了迎合打孔卡操作员/程序员的习惯，好让他们能顺利过渡……
…moment) Inside the AS/400 [1] by Frank Soltis. He was the father of the System/38 /AS400, and also worked on the Cell processor. I haven't read this edition, but I did read the following edition called 'Fortress Rochester', and it is a good and detailed overview of the system - history, design choices, and hardware/software. As for RPG, it was made to be familiar to punch-card operators/programmers so they could switch…
> 刚读完 Frank Soltis 写的《Fortress Rochester》，他是 IBM System38/OS400/iSeries 软件背后的总设计师。archive.org 上有前一个版本，同样是 Frank Soltis 写的《Inside the AS/400》：https://archive.org/details/insideas4000000solt/
> I just finished reading "Fortress Rochester" by Frank Soltis, the designer behind the IBM System38/OS400/iSeries sw. There's a copy of the previous version, Inside the AS/400, also by Frank Soltis on archive.org https://archive.org/details/insideas4000000solt/