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CHANGELOG
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CHANGELOG
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Fake86 changelog for v0.13.9.13
v0.13.9.16:
- Fixed regression that caused Fake86 to not compile on at least some
versions of Mac OS X.
- Increased amount of processing time dedicated to timing and audio
sample generation. Helps accuracy and helps prevent audio dropouts
on slower systems.
v0.13.9.13:
- Major fix: Some games using the Sound Blaster used to go silent and some
even would hang after playing the first sample chunk. It was due to them
being unable to read the data count register from the DMA controller.
This has been fixed. One example game that did this was Return to Zork.
- Numerous big fixes and improvements.
- Windows version now has a simple drop-down menu GUI, so on that platform
it is no longer required to specify command-line options for the basics
such as specifying disk images. These can be loaded from the menus.
v0.12.9.19:
- Fixed bug from v0.12.9.16 where the call to createscalemap() in the
VideoThread() function was placed before the mutex lock, sometimes causing
crashes when Fake86 first loads. (due to an uninitialized pointer)
- Fixed bug in imagegen that made it crash on some Windows systems.
v0.12.9.16:
- Fixed bug from v0.12.9.12 that caused faulty CPU emulation on big-endian
host CPUs, such as the PowerPC.
- Fixed another bug from v0.12.9.12 that caused colors to be incorrect on
big-endian host CPUs.
- Added "-slowsys" command line option that can be used to fix audio dropout
issues on very slow host CPUs by decreasing audio generation quality.
- Added another stretching function that is used when the SDL window is
exactly double of the width and height of the emulated video. Only active
when no smoothing method has been specified. This saves the CPU a lot of
work since we now only need to calculate the color to draw once for every
four pixels, instead of recalculating the same color for every pixel
This makes difference between smooth video and jerky, useless video on
very old systems such as my 400 MHz PowerPC G3 iMac.
- Added an obvious speed tweak which I should have had all along by
generating a "scale map" lookup table once on every screen mode change.
we no longer need to make expensive floating point scale calculations on
every pixel in every frame. The speed boost is very noticeable on slower
machines such as those with a Pentium 4 or older CPU.
- No longer distributing IBM's ROM BASIC bundled with Fake86 out of legal
concern. Is it very old? Yes. Does IBM care? Likely not, but they still
hold the copyright. You can still use ROM BASIC by providing your own ROM
dump. It should be 32,768 bytes in size, and must be named "rombasic.bin"
without the quotes. After building and installing Fake86, you need to put
the ROM dump in "/usr/share/fake86/" unless you explicitly changed the
path in the makefile. In the case of running under Windows, the file
should be placed in the same directory as the executable.
- Created and included a new makefile, this one customized to work in
Haiku OS. More information about Haiku at their website:
http://www.haiku-os.org
v0.12.9.12:
- Around 80% of this version is a rewrite compared to all older versions of
v0.11.7.22 and prior, and I am considering it a "fresh start". Older
releases will no longer be officially available, and are to be considered
obsolete. This fresh code base has far too many bugfixes, tweaks, design,
layout, and speed improvements to even bother putting together a list of
changes.