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- NEW in version 5.2:
-
- - New sound emulation engine with support for Soundblaster (compatible),
- Gravis Ultrasound, and Ensoniq Soundscape. 44kHz and stereo options.
- Accurate recreation of tone frequencies and hardware envelopes. Optimized
- for speed.
- Unfortunately, the new GUS code is currently non-functional; it will be
- fixed for a future version (if possible).
- - New FDC code, now 99% complete. All uPD765A commands, except Write ID,
- are faithfully emulated. Most copy protected material can be processed
- without problems.
- - Added support for high capacity disk images (eg. 80 tracks, double sided).
- Usually requires the use of an expansion ROM such as VDOS or ROMDOS.
- - Scroll-Lock LED indicates any CPC disk activity.
- - New auto-calibrating joystick routines and support for two PC joysticks.
- - New, faster VESA graphics mode routines.
- - Optimized keyboard interrupt handler.
- - Completely redesigned user interface. An easy to use file selector is now
- available to select snapshots and disk images. Files can be retrieved from
- different drives, and from within ZIP archives. See the main
- documentation for more details.
- - Fixed the snapshot support and maximized their processing speed.
- - Removed the "thin grey border" that was visible on some graphics cards in
- 800x600 VESA graphics mode.
- - Rewrote the CPESETUP utility to be more user-friendly.
- - Added spanish translation by Gerardo BriseƱo
-
- As always, make sure you delete your old PREFS.CPE prior to starting
- CPESETUP!
-
- -----------------------------------------------------------------------------
- NEW in version 5.1:
-
- The following enhancements are available thanks to Ulrich Doewich:
- - Perfect sound emulation with GUS and Soundblaster cards. It supports all
- features of the CPC sound chip.
- - FDC code completely rewritten. It now supports both CPD formats (normal and
- compressed) as well as the old CPCEMU .DSK format and the extended .DSK
- format. Copy protection should work fine, and .DSK files are now writeable.
-
- Some other changes:
- - CPE2: Autocalibration of the frame rate. If you set the frame rate to 0 in
- CPESETUP, CPE2 will figure out the best value that it can use while still
- running at 100% the speed of a real CPC.
- - You can now change directories when selecting disk images. This may still
- have bugs...
- - Some silly bugs fixed. Especially the good old
- |TAPE:SAVE "FOO",b,&C000,&4000
- effect should work again 8-) (Try it on a 386DX40 for best results)
- - Bug that would prevent CPE from working on some graphics cards removed
- (Brad Thomas)
- - Joystick support rewritten not to use BIOS routines (which may not exist
- on every machine) (Unai Uribarri Rodriguez)
- - French documentation (Emmanuel Roussin)
- - French keyboard support (Thierry Dymon)
-
- Please, please always re-run CPESETUP when you get a new version of
- CPE, or the emulator will behave strangely!
-
- -----------------------------------------------------------------------------
- NEW in version 5.0:
-
- - CPE2 handles overscan a lot better. Scrolling is possible with F8,F9,
- F11 and F12 if the CPC's screen does not fit in 320x200.
- - CPE2 can now use EMS memory without crashing programs that are run
- after it. Consequently, EMS is now enabled by default.
- - CPE2 has new graphics modes. It is possible to select a resolution of
- 800x600 in 256 colors (VESA mode, your graphics card has to support that).
- This has the following advantages over the old 320x200 mode:
- * CPC mode 2 (640x200) is now displayed correctly; this can't be done in
- a 320x200 resolution.
- * Borders are painted, the screen is now a little smaller, which looks
- somewhat nicer and resembles a CPC more closely. No garbage is left
- over from previous screens.
- As a result, the screen will always be centered as on a real CPC.
- * All possible overscan resolutions are supported, nothing will ever be
- truncated.
- * 32k screens, used in many demos, are supported (only if EMS is on, it
- would be painful to implement this without EMS).
-
- Unfortunately, you need good hardware for this. With a maximum screen
- refresh rate of 50Hz (can be adjusted as usual in the setup), this requires
- a transfer rate of 11MB/s for graphics emulation only. Even a P90 may be
- unable to handle this. 25Hz refresh rate works fine, though, even on a VLB
- 486DX2-66 with a good video card.
- To improve speed, you can turn off the borders, which will make the screen
- refresh go much faster, but there will be blank spots on the screen that
- may contain garbage from previous frames.
- You can also reduce the number of displayed pixels to improve speed. The
- screen will then only fill the upper left quarter of the display, leaving
- most of the area blank. You lose most of the advantages of the 800x600
- mode, but you'll still have full overscan and 32k screens.
-
- In this mode, it is possible to make CPE2 paint the menus not on a text
- mode screen, but rather keep the high resolution, thus avoiding switching
- frequencies too often. You should enable this, your monitor will thank you.
-
- There is a possibility that this mode does not work properly on your
- graphics card - I tested it with two S3 cards, and it works. But on other
- cards, the screen may be squeezed vertically, filling only the top half of
- the display. Please tell me which graphics cards suffer from this.
- - CPE2 tries to emulate the 'split screen' technique that some demos use.
- This works fairly well most of the time, but needs VESA mode to give good
- results (320x200 is just too small). Use programs like "The Demo" or
- "Voyage 93" to test this, most of the parts of these demos work fine now.
- (The Demo needs to be on a .CPD file, not a .DSK file)
- - Bug fixes in the FDC part, in interrupt generation, and in OUT decoding.
- I don't think I fully understand the way interrupts are generated in the
- CPC. If you have any programs that worked in v4.8, and behave strangely
- with the new version, please report this to me.
- - If you have configured your frame rate too high, CPE2 will still be slowed
- down, but hopefully not quite as much as in previous versions.
- - As a side result of some other changes, CPE2 will now behave correctly if
- the CRTC is programmed to 60Hz refresh rate instead of the usual 50Hz. On
- a real CPC, this has the effect that most games either crash or work faster,
- since they synchronize with the vertical blank interrupt.
- - Menus & setup program cleaned up a little. Some rather obsolete stuff
- removed (things I invented to get a 1% speed increase out of my 386DX-40)
- - Diskfile & snapshot selection menus now "remember" the last file you
- selected. You can jump to a specific file by typing the first character of
- the name.
- - The setup program has a new option to turn off cassette messages, so there
- won't be "Press Play then any key" or "Loading block ..." messages. This
- is useful if you have software that expects to be on a floppy in the
- TAPE directory; such software used to mess up title screens and such with
- tape messages.
- - It should no longer be possible to crash the emulator by using a joystick
- before calibrating it.
- - Maybe I fixed the disk menu crash that some people have seen. I can't
- tell, I've never had it crash myself.
- - The snapshot saving routine is improved, there is a directory of snapshot
- files, and you can edit your input.
- - The doc file is a bit improved, there are some additional hints (like,
- giving the "-d" option to PKUNZIP when decompressing the archive...)
- It should be somewhat easier to read and understand now.
-
- -----------------------------------------------------------------------------
- NEW in version 4.8:
-
- - Support for Gravis Ultrasound cards, thanks to Ulrich Doewich.
- - ROMs are included now. They are copyrighted by Amstrad and Locomotive.
- Read CPE.DOC for more information.
- - A short program called STRIPES.BAS in the TAPE\ directory to calibrate
- the 50Hz mode.
-
- -----------------------------------------------------------------------------
- NEW in version 4.7:
-
- - Bug fixes: CPE2.EXE sometimes crashed, and both versions had problems if
- there was only a DISC, but no DISKS directory.
- - CPESETUP.EXE was compiled for protected mode and could only be run if
- Borland Pascal was installed on the hard disk. Since I got only one
- complaint, I can assume two possibilities:
- a) No one ever called CPESETUP: This is bad, because this program is needed
- to fine-tune CPE's behaviour for your computer.
- b) Everyone got Borland Pascal: Well, maybe.
- - CPE2.EXE can now be made to refresh the screen only in intervals. This is
- done in CPESETUP.EXE. For example, you might want to make CPE2 draw only
- every second screen refresh. This will considerably speed up the emulation.
- (CPE.EXE is not affected.) On a 486DX2-66 with a local bus video card, most
- programs achieve full speed with this set to 1, i.e. every frame is drawn.
- If the program becomes too slow, you may want to change the setting to a
- higher value. There should be VERY FEW programs that require this to be set
- to 3 on a 486DX2-66.
- Only if this is set to 1 will graphics effects be smooth, provided your CPU
- is fast enough to handle the high refresh rate.
- - better joystick emulation. You may want to try it. Warning: If you encounter
- problems, because somehow the emulator does not react if you push the
- joystick in a certain direction, try re-calibrating the joystick, but this
- time don't push it to the full extent.
-