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- FastECS version 1.2
-
-
- Getting started
- ~~~~~~~~~~~~~~~
- Copy the file named FastECS into the "Video Drivers" drawer in the
- Shapeshfiter directory. Set the Screen Type to "External" and then select
- "FastECS as the video driver. Also set the Color Depth to 4 bits (16
- Colors) and select the screen size you wish to use. For best performance,
- set this to 512x342. You may use any screen size you wish as long as
- (Width*Height)/2 is less than or equal to 262144. The Refresh Rate
- setting is ineffective since FastECS uses it's own refresh cues.
-
- Discussion
- ~~~~~~~~~~
- This software has some severe limitations, and will probably only work
- for a small percentage of ShapeShifter users. One of the reasons for this
- is that it uses specific features of the 68030 MMU, and there are a lot
- of 68030s without MMUs out there (ie. 68EC030.)
-
- I have included a tool to enable FastROM for A500 and A2000 owners. Oddly
- enough, it is called FastROM. On a 3000, where FastROM is unnecessary, this
- driver will create it's own MMU table as long as the MMU is not in use. I
- have included another tool called PatchA3000MMU. This will allow FastECS to
- work on a soft kicked A3000.
-
- Memory usage is another issue. A screen size of 640x400 uses about 650k
- of fast ram and 128k of chip ram. If you have lots of ram, then this will
- probably not bother you too much.
-
- Distribution
- ~~~~~~~~~~~~
- This software is freely distributable as long as this documentation is
- included with it. If you like it, send me some mail.
-
- Disclaimer
- ~~~~~~~~~~
- Use this software at your own risk. In no event will the author, Chris
- Brenner, be liable for any direct, indirect, or consequential damages
- resulting out of the use of or inability to use this software.
-
- How to contact me
- ~~~~~~~~~~~~~~~~~
- You can reach me either by mail, phone, or e-mail:
-
- Chris Brenner
- P.O. Box 161805
- Sacramento, CA 95816
-
- (916) 456-2940
-
- cbrenner@calweb.com
-
- History
- ~~~~~~~
- Version 1.1 (Jan. 5, 1996)
-
- ·Screen sizes are no longer limited to 512x342 and 640x400.
-
- ·The screen mode is no longer forced to NTSC:High Res Laced
-
- ·The first 8k of memory is now mapped into 32 bit RAM, which significantly
- improves both the Mac emulation, and the screen refresh performance.
-
- ·MMU configuration changed to 256k Level A page size, 1k Level B page size.
-
- ·FastROM tool included for A500/A2000 users.
-
- Version 1.2 (Feb. 23, 1996)
-
- ·New code added to better handle display clipping.
-
- ·The screen is now opened with Autoscroll activated.
-
- ·The screen is now refreshed during short frames.
-
- ·PatchA3000MMU tool included for soft kicked A3000 users.
-
- ·Removed a bug from the FastROM tool which could potentially cause a crash
- when the REMOVE option is used.
-