I have tried to use a benchmark which is given with the kit (a moving
ball in Ray Tracing) but I don't see any difference if I use the
interruptor installed with the kit. I precise that the problems of
display are present in basic and in MSXDOS, without any other progs
launched and when I use a game in graphic mode there is no problem.
| -----Message d'origine-----
| De: Jan-Lieuwe Koopmans [SMTP:[EMAIL PROTECTED]]
| Date: mardi 23 juin 1998 10:59
| �: [EMAIL PROTECTED]
| Objet: Re: Sony 700F at 7 Mhz
|
| |Hello MSXFans,
| |
| |I have received yesterday a 7Mhz Kit and an IDE interface for my Sony
| |HBF700F. But I have few problems :
| |
| |7Mhz Kit :
| |
| |I bought it to Miri Software (very sympathic persons), but the doc's
| kit
| |seems to be for philips computers, it speaks of RS7 resistor in front
| of
| |the VDP, but I only have a RS307 resistor , is it the same ?
| |
| |I have (according to me) make all the connections well but it doesn't
| |accelerate anything (I might do something bad) did someone install
this
| |kit on a sony hbf700f ?
|
| Well, according to your next paragraph it *DOES* accelerate something.
| Be aware of the fact that most programs were writting under interrupt
| and therefor won't accelerate (well, they do... there's less change
that
| a program like Aleste will glitch due to the fact that the ISR can
| perform more actions in the same amount of time). Did you test it
using
| benchmarks? You could write some simple loops in BASIC. Insert the
| following lines:
|
| 10 TIME=0
| .
| .
| .
| 990 PRINT TIME ' nr. of interrupts passed
| or
| 990 PRINT TIME/60 ' nr of seconds passed (60 Hz frequency)
|
| |Now I have display problems, in text mode, when the screen scroll (in
| |fact when there is text on the last line) the text is jamming all
over
| |the screen, have you ever had this problem ?
|
|
| Looks like the I/O instructions are too fast. Maybe this has got
| something to do with the resistor you were talking about...? (I'm not
a
| technician... Just a simple programmer!)
|
|
| Greets,
|
| Jan-Lieuwe
|
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