On Tue, 06 Jun 2000, Ricardo Bittencourt wrote:
> > Anyways, relocating the hook to #FD9F is a much, much nicer solution I
> > think.
>
> The only real advantage of this method would be the stop-drive,
> but that doesn't matter because I call 0FD9Fh 120 times at the
> startup of my program
Laurens Holst wrote:
> > The only real advantage of this method would be the stop-drive,
> > but that doesn't matter because I call 0FD9Fh 120 times at the
> > startup of my program :)
>
> Why not just 256 times (ld b,0)???
> Maybe it keeps turning longer than 2 seconds on some MSX types.
Ricardo Bittencourt wrote:
> > I think the VDP statusregister is being reset upon readout
> > in the MSX interrupt routine itself...
>
> Not really. The bios handler read the vdp status register
> AFTER calling 0FD9Ah. If you read the status register before the bios
I thought the ISR read
] > With the help of Maarten and Jose Morente I fixed the bug at last.
] > Indeed the MSX-MIDI was generating interrupts every 5ms and my program was
] > expecting it at 16/20 ms.
] >
] > Instead of switching hooks, I fixed the bug with a simple lookup
] > in the vdp status register, to check if t
Laurens Holst wrote:
> > Instead of switching hooks, I fixed the bug with a simple lookup
> > in the vdp status register, to check if the interrupt was indeed a VIRQ:
> >
> > IN A,(99h)
> > AND A
> > RET P
>
> Does that work???
Of course it works! Try by yourself!
> I think the VDP sta
> With the help of Maarten and Jose Morente I fixed the bug at last.
> Indeed the MSX-MIDI was generating interrupts every 5ms and my program was
> expecting it at 16/20 ms.
>
> Instead of switching hooks, I fixed the bug with a simple lookup
> in the vdp status register, to check if the interrupt
With the help of Maarten and Jose Morente I fixed the bug at last.
Indeed the MSX-MIDI was generating interrupts every 5ms and my program was
expecting it at 16/20 ms.
Instead of switching hooks, I fixed the bug with a simple lookup
in the vdp status register, to check if the int
On Sun, 04 Jun 2000, Ricardo Bittencourt wrote:
> However, if you execute RUN"BUG.BAS" before loading
> BLOAD"BUG.BIN",R , then the music will faster than normal!! And
> this bug only happens on MSX Turbo-R GT !! I already tested this
> same program on Turbo-R ST and nothing strange happe
Hello people.
I found a very strange bug that I don't know how to fix.
Maybe someone here can help me.
Please download the zip in this address:
http://mercury.spaceports.com/~msxpro/bug.zip
Inside this pack, there are three files: BUG.BAS, BUG.BI
