BrokenThorn Entertainment

Well, if it runs fine on pm (physical machine) and on the top paid virtualizer's software... and even so it's probably booting wrongly... how can I certificate that i'm free of bugs???

And on bochs was also booting fine

Hi,

I'm experiencing a strange problem.
My OS runs fine on:
-physical machine;
-VirtualBox;
-Parallels;

was running correctly on Bochs... but now I'm getting the invalid TSS... Is it a bochs bug? Have anyone experienced this kind of behavior?
(i'm using the last version)

Thanks

Thanks... and welcome!

Hi,

I have all up and running (user layer, vm86...)

But now, how to be able to use 16bits ints??? (since all goes trough the IDT??)

The message from bochs means that you are attemping to use the LOCK prefix with an instruction where it is not valid. Unless you have explicitly put in some handcoded asm (at which point you should be less confused about the error), this means that you are trying to execute data in memory. I sugges...

I'm confused... jmp (5*8):0 -> Done... Ok schedule... jmp (6*8):0 -> Done... (Task switch Ok) schedule... jmp (7*8):0 -> Done... (Task switch Ok) schedule... jmp (8*8):0 -> Done... (Task switch Ok) schedule... jmp (5*8):0 -> Done... (Problem!!!)......................................second round! I c...

Hi guys... problem: -I got 4 tasks, (each one a function with a endless loop printing his id), with own TSS... -Are installed on GDT; .show gdt Idx BaseHI BaseLO BaseMid Flags Grand Limit 0 0x0 0x0 0x0 0x0 0x0 0x0 1 0x0 0x0 0x0 0x9B 0xCF 0xFFFF 2 0x0 0x0 0x0 0x93 0xCF 0xFFFF 3 0x0 0x0 0x0 0xFA 0xCF ...

even it works, I don't understand why using port 0x80 and not 0x81 (that is specific for channel 2). Why D8 and not 0C??? (for flip flop)... I'm using different ports, is working with any address supported by the chips... But, as always, I need to know why that ports... can you, please, explain? Tha...

Hi, //! initialize DMA to use phys addr 84k-128k void flpydsk_initialize_dma () { outportb (0x0a,0x06); //mask dma channel 2 outportb (0xd8,0xff); //reset master flip-flop outportb (0x04, 0); //address=0x1000 outportb (0x04, 0x10); outportb (0xd8, 0xff); //reset master flip-flop outportb (0x05, 0xff...

Hi, guys...

the floppy/DMA/read is returning 0x00s. Any clue?
it's configured with buffer starting at 0x1000 (page 1)

Is there any clue to this problem? This is driving me crazy...

Already tested on real environment. And works... That's why that I think its a Microsoft problem... or something specific to the VPC must be done... and I don't know what it is...

Thank you Mike...

Yes, mike...
It works better than MS-DOS (heheheheh. Just kidding!)... but it works!

....ya... it is, definitely, a VPC bug!!!