Re: Mattel Electronics Night Stalker & Burgertime joystick emulation.

Posted on 2017-01-09, 01:36

by

by NewRisingSun

in DOSBox Games/Apps

in DOSBox Games/Apps

Here's my config file for BurgerTime: Copy code to clipboard 1 [dosbox] 2 machine=cga 3 4 [cpu] 5 cycles=1000 6 7 [joystick] 8 joysticktype=2axis 9 timed=true 10 11 [autoexec] 12 @echo off 13 boot disk.tc Using the original disk image file.

---

Re: Games that show 16 colors ONLY in Tandy / PCjr mode?

Posted on 2017-01-08, 20:53

by

by NewRisingSun

in DOSBox Games/Apps

in DOSBox Games/Apps

Yes, don't let the combover fool you. 😀 And Gary Kildall, the bearded host, is the founder of Digital Research and the author of CP/M, the predecessor to MS-DOS.

---

Re: Games that show 16 colors ONLY in Tandy / PCjr mode?

Posted on 2017-01-08, 16:05

by

by NewRisingSun

in DOSBox Games/Apps

in DOSBox Games/Apps

There seems to be a lot of fakelore about it, including the term "crash" itself (most of the contemporaneous press that I have read uses the term "shakeout" instead, referring to the fact that there were too many companies in the market that should not be there), and the utter nonsense that Nintendo …

---

Re: SBVGM (DOS) VGM Player

Posted on 2017-01-07, 14:15

by

by NewRisingSun

in Release Announcements

in Release Announcements

Why would that line crash with a buffer overflow? There is the implicit fifth byte ('\0') after the "Vgm ", which will overwrite the first byte of header.rofsEOF, but that is okay since rofsEOF is filled with actual information immediately afterwards. Unless you are enabling some hyper-aggressive …

---

Re: SBVGM (DOS) VGM Player

Posted on 2017-01-06, 00:20

by

by NewRisingSun

in Release Announcements

in Release Announcements

What platform are you compiling for? Because mingw32, which I am using, currently comes with g++ 5.3.0. I use a smart pointer for the VGMCapture object to make sure it is properly released, and the .VGM file is written, regardless of how DOSBox exits. You need at least -std=gnu++11 for this, …

---

Re: Games that show 16 colors ONLY in Tandy / PCjr mode?

Posted on 2017-01-05, 21:07

by

by NewRisingSun

in DOSBox Games/Apps

in DOSBox Games/Apps

The separate versions of Boulder Dash 1 and 2 support PCjr, but not Tandy. This applies both to the U.S. releases by First Star Software and the European releases by Prism Leisure Corporation. The First Star releases are booters, the Prism releases are DOS executables (encrypted with keydisk …

---

Re: UniPCemu review request

Posted on 2017-01-05, 19:32

by

by NewRisingSun

in Release Announcements

in Release Announcements

Unfortunately, I cannot reproduce the problem --- the new version of the emulator just boots DOS 3.3 without any problems. 😀 I don't have an IDE BIOS ROM in the rom folder though.

---

Re: UniPCemu review request

Posted on 2017-01-05, 15:48

by

by NewRisingSun

in Release Announcements

in Release Announcements

Thank-you. I will take a look tonight or tomorrow.

---

Re: SBVGM (DOS) VGM Player

Posted on 2017-01-05, 01:56

by

by NewRisingSun

in Release Announcements

in Release Announcements

I have made DOSBox-VGM available, so you now have the ability to capture it yourself.

---

Re: UniPCemu review request

Posted on 2017-01-04, 23:58

by

by NewRisingSun

in Release Announcements

in Release Announcements

About that breakpoint question... 😉 Without the ability to debug the point at which it hangs, we're poking around in the dark.

---

Re: UniPCemu review request

Posted on 2017-01-04, 23:23

by

by NewRisingSun

in Release Announcements

in Release Announcements

Of course. A reset makes the FDC forget everything it's doing, so the the IRQ line is lowered by the reset. At the end of the reset, it will be raised again to indicate a change in the drive's READY line, unless polling is disabled via the Configure command, in case of which FDC reset merely lowers …

---

Re: 4-D (Sports) Boxing - No Tandy DAC

Posted on 2017-01-04, 23:17

by

by NewRisingSun

in DOSBox Patches

in DOSBox Patches

Aw crap, r4002 breaks this patch. 🙁 Something funny going on in mixer.cpp in AddStretched...

---

Re: SBVGM (DOS) VGM Player

Posted on 2017-01-04, 22:55

by

by NewRisingSun

in Release Announcements

in Release Announcements

Here is the 900K VGM file from that Creative demo. The TI file from Bruce Lee is not actually relevant to the SAA emulation (I was talking about the VGM of my SAA1099 recreation of the music), but I have attached the pack nonetheless.

---

Re: UniPCemu review request

Posted on 2017-01-04, 22:31

by

by NewRisingSun

in Release Announcements

in Release Announcements

FYI, the error message I get is "Disk Boot Failure". I thought that was a BIOS error message, but it turns out that it is a message by the DOS 3.3 boot sector code. Which means that at least the boot sector is correctly read, and the error occurs after that.

---

Re: UniPCemu review request

Posted on 2017-01-04, 22:05

by

by NewRisingSun

in Release Announcements

in Release Announcements

So you're only updating the MSR status at the time it's read? No, "Specify" does not generate an IRQ. But it has no Result phase either, so the XT BIOS source code doesn't bother reading MSR at the end of the reset code. The bootstrap loader (F000:E61B) in that BIOS calls Int13 AH=0, then if it …

---

Re: UniPCemu review request

Posted on 2017-01-04, 21:19

by

by NewRisingSun

in Release Announcements

in Release Announcements

Why isn't MSR going back from 90 to 80 after "Specify" (command 03) has been completed? In the terminology of the log, there should be an "MSR changed: 80" occurring after "executing command: 03".

---

Re: UniPCemu review request

Posted on 2017-01-04, 19:50

by

by NewRisingSun

in Release Announcements

in Release Announcements

It's a simple 360K floppy disk image of PC-DOS 3.3 which works on every other PC emulator in the world. :P The original IBM BIOS returns error 601 if the seek to track 34 failed, according to its source code. This check is performed before the actual boot process starts. That might indicate the …

---

Re: A different kind of emulator

Posted on 2017-01-04, 19:08

by

by NewRisingSun

in PC Emulation

in PC Emulation

Thanks. I can provide a disk image of the game if needed.

---

Re: A different kind of emulator

Posted on 2017-01-04, 19:03

by

by NewRisingSun

in PC Emulation

in PC Emulation

The emulator runs well now, but there was one disappointment for me: the PC speaker does not seem to be emulated at all when it is clicked manually, meaning that the program does not use Gate 2 but counts CPU cycles until it flip port 61 bit 2. I was hoping that the cycle-exact CPU emulation would …

---

Re: UniPCemu review request

Posted on 2017-01-04, 18:17

by

by NewRisingSun

in Release Announcements

in Release Announcements

That newer BIOS did away with the Error 02 problem, and now puts me on par with all the other BIOSes and proceeds until "Disk Boot Failure" is displayed.

---