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Added website.
2013-12-07 22:06:55 +00:00
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Apple2: An Apple //e Emulator for Linux, Windows, and MacOS</title>
<meta name="description" content="Apple2 homepage" />
<meta name="keywords" content="apple, emulator, SDL, cross-platform, GPL" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<meta name="generator" content="Kate" />
Added website.
2013-12-07 22:06:55 +00:00
<link rel="stylesheet" href="apple2.css" type="text/css" />
</head>
<body class="mainpage">
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<h1 class="title">Apple2</h1>
Update to website.
2013-12-07 22:54:25 +00:00
<h2>A portable Apple //e emulator</h2>
Added website.
2013-12-07 22:06:55 +00:00
<hr>
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<p><img class="flt-l" src="img/a2-icon-64x64.png">This is the home of the Apple2 portable Apple //e emulator.&ensp;It&rsquo;s based on GCC and SDL2, and runs on Linux, Windows, and MacOS X.&ensp;It&rsquo;s powered by Virtual 65C02&trade;, and sports an easy to use yet powerful interface.&ensp;It also has WOZ support!&ensp;The source is licensed under the GPL version 3.</p>
Added website.
2013-12-07 22:06:55 +00:00
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<figure class="flt-r">
Added initial emulator configuration window, cleanup of settings code. The settings code now actually saves updated settings to the config file. Also wrote the beginnings of a proper Config window, and a few of the options actually work (which ones work is left as an exercise for the reader).
2019-04-17 03:29:58 +00:00
<img class="border" src="img/ss-04s.png">
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<figcaption>Apple2 running &ldquo;The Bard&rsquo;s Tale&rdquo;</figcaption>
</figure>
Update to website.
2013-12-07 22:54:25 +00:00
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<p>This emulator came about because of ApplePC.&ensp;It was a DOS only application with a horrible user interface (I wouldn't go so far as to call it user hostile, but it was close) that you had to tune by feeding it the correct numbers for your machine to get it to run at the correct speed.&ensp;But it had absolutely the most accurate looking screen that I have even seen on an Apple emulator at that time or ever since&mdash;current emulators <i>still</i> to this day can&rsquo;t match the fidelity of what that old DOS program could do.</p>
Added website.
2013-12-07 22:06:55 +00:00
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<p>So, to make a long story even longer, ApplePC disappeared off the face of the earth and I thought it was a shame that the screen rendering of that emulator should disappear with it.&ensp;Also, there are, for some reason, absolutely no Apple II emulators for Linux!&ensp;A deplorable situation!&ensp;<i>[This was true at the time of this writing, but now there are at least two others (<b>LinApple</b> and <b>microM8</b>) out there.&ensp;&mdash;Ed.]</i>&ensp;And so I resolved to fix that by figuring out how ApplePC did its video tricks and by writing an emulator for Linux.&ensp;At the same time, since I write pretty much all my software cross-platform, Windows and MacOS X ports come along for free!</p>
<p>Currently, only a source code archive is available.&ensp;More will be coming in the near future&hellip;&ensp;You can get a copy of the source code with the following incantation:</p>
Added website.
2013-12-07 22:06:55 +00:00
<p><tt>git clone http://shamusworld.gotdns.org/git/apple2</tt></p>
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<h3>Features</h3>
<p>Apple2 emulates an enhanced Apple //e with the following features:</p>
<ul>
<li>128K RAM</li>
<li>Two Disk II floppy disk drives in slot 6</li>
<li>One Mockingboard A (also known as Sound II) in slot 4</li>
Add support for .hdv hard drive images, new "Rob Color TV" palette.
2020-09-11 23:39:32 +00:00
<li>One Apple II High-Speed SCSI Card in slot 7</li>
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<li>80-column card in slot 3</li>
<li>Double Hi-res</li>
<li>Double Lo-res</li>
<li>Accurate color TV emulation</li>
<!-- Warning! abbr tag abuse! -->
<li>Supports virtual disks types of DSK (read) and WOZ (read/write)&mdash;<abbr title="While Apple2 supported NIB files in the past, they have been superceded by WOZ files and are no longer compatible with the new disk emulatiion. While they served their purpose when we had nothing better, they've now worn out their welcome. :-P Click the link if you're curious to know why."><a href="nib.html">NIB is <b>no longer</b> supported</a></abbr></li>
</ul>
<h3>How to Use It</h3>
Added initial emulator configuration window, cleanup of settings code. The settings code now actually saves updated settings to the config file. Also wrote the beginnings of a proper Config window, and a few of the options actually work (which ones work is left as an exercise for the reader).
2019-04-17 03:29:58 +00:00
<figure class="clr-r flt-r small33">
<img class="border" src="img/ss-01s.png" width="100%">
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<figcaption>Apple2&rsquo;s Control Bar</figcaption>
</figure>
Added initial emulator configuration window, cleanup of settings code. The settings code now actually saves updated settings to the config file. Also wrote the beginnings of a proper Config window, and a few of the options actually work (which ones work is left as an exercise for the reader).
2019-04-17 03:29:58 +00:00
<figure class="clr-r flt-r small33">
<img class="border" src="img/ss-02s.png">
<figcaption>Apple2&rsquo;s Disk Selector</figcaption>
</figure>
<figure class="clr-r flt-r small33">
<img class="border" src="img/ss-03s.png">
<figcaption>Scrolling in the Disk Selector</figcaption>
</figure>
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<p>By mousing over the right side of the screen, the emulator control bar will appear; moving the mouse off of the bar will cause it to disappear.&ensp;On the bar are seven icons, labeled (from top to bottom): power, disk one, disk two, swap disks, save state, load state, and configure.&ensp;Here&rsquo;s what they do:</p>
<ul>
<li>Power: turn the virtual Apple //e on and off</li>
<li>Disk One: put a virtual disk into virtual disk drive #1 (or eject from same)</li>
<li>Disk Two: put a virtual disk into virtual disk drive #2 (or eject from same)</li>
<li>Swap Disks: take the virtual disk out of virtual drive #1 and put it into virtual drive #2 and take the virtual disk out of virtual drive #2 and put it into virtual drive #1 (it takes a lot of words to describe this simple action)</li>
<li>Save State: save the state of the Apple2 emulator to a file for later recall</li>
<li>Load State: load the state of the Apple2 emulator from a file</li>
<li>Configure: configure various behaviors of the Apple2 emulator</li>
</ul>
<p>In addition to the aforementioned control bar, Apple2 also supports the following function keys:</p>
<ul>
<li>F2: Toggle color TV emulation palette</li>
<li>F3: Toggle between color TV, white monochrome, and green monochrome modes</li>
<li>F5/F6: Turn the emulated speaker volume up or down</li>
<li>F7/F8: Turn the emulated Mockingboard volume up or down</li>
<li>F12: Toggle full screen on/off</li>
<li>Pause: Pause/unpause the emulation</li>
<li>Ctrl-Shift-Q: Quit Apple2</li>
Added support for the Apple High Speed SCSI card. This means that you can now connect hard drive images to the emulator, and, with the addition of the AHSSC emulation, connect up to seven of them to one system (technically, with 8 LUNs per SCSI ID, you could in theory connect 56 of them, but that's just crazy). The emulation of the card is still in an early state, but it currently seems to work properly with the "Pitch Dark" hard drive image by 4am. Still needs some work to expose it properly to the GUI, but hey, that's just details. :-)
2019-02-25 22:34:27 +00:00
<li>Ctrl-Home: Ctrl-RESET</li>
Misc. improvements, added WOZ file support to floppy emulation - Refactored old MMU slot code to be more flexible - Moved all Mockingboard related code to its own compilation unit - Refactored old 6522 & AY-3-8910 code into v6522VIA & vAY8910 :-) - Fixed BCD mode for ADC and SBC in v65C02 - Finally fixed text mode characters in both ALTCHARSET and regular modes - Added new floppy disk controller Logic State Sequencer emulation - Fixed v65C02 to be cycle exact (as far as I can tell) - Fixed a bunch of bugs in v65C02 - Dropped NIB support - Added WOZ 1.0 file support That last item is a bit of a big deal, as I had been thinking about writing a new file format that would be bit-based--since the NIB nybble format, while better than pretty much all the other formats out there, fails hard in things like extra sync bits and half tracks. So, somewhat serendipitously, I stumbled upon the Applesauce project and found out that not only had other people been thinking in more or less the same direction, they had created it and had made disk images to try! So now, because of this, WOZ is the internal format used by the floppy emulation (as opposed to NIB) which, along with the new disk Logic State Sequencer emulator, makes it possible to format floppy disks correctly for the first time. :-) One ironic consequence of this is that NIB format can no longer be properly supported. The irony comes from the fact that before there was LSS emulation, NIB was the most accurate format you could get to represent the low level format of a disk, but now, with proper LSS emulation, it's the worst format for representing a floppy disk. And the main reason for this is that NIB doesn't contain sync bits, and has no mechanism to represent them--so when feeding them to the new LSS emulation, they will fail horribly because without sync bits, the bitstream represented by a NIB formatted disk can and will be misinterpreted by the LSS. And since there is now a format that properly represents the bitstream on a floppy disk (WOZ), there's absolutely no reason to keep NIB around or support it anymore. While it was a nice interim format to have around (when the emulation of the disk was "imperfectly perfect"), it now no longer has a place in disk preservation and/or emulation. Another consequence of this new format is that Apple2 only supports writing of WOZ images--it will no longer support writing of DSK and its bretheren. However, since those formats are extremely limited in their scope (they literally only represented the contents of the sectors on a disk) we still support reading them; Apple2 will automagically upconvert them and save them as WOZs (it will use the same filename but substitute "woz" for the old extension). So if you're wondering why your DSKs are unchanged when saving to them, you now know why. :-) Big, big thanks to the Applesauce guys and everyone who contributed and continues to contribute to that project; your efforts are very much appreciated--you guys are awesome!
2019-01-24 02:33:05 +00:00
<li>Left Alt: Open apple key</li>
<li>Right Alt: Closed apple key</li>
</ul>
Added website.
2013-12-07 22:06:55 +00:00
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