Re: Speed difference between disk formatted on PC and MSX
Adriano Camargo Rodrigues da Cunha wrote: But with a small gap do I gain more disk space, don't I? In theory, yes. You can fit 10 sectors into a track if you make the gaps small enough. But unless you're doing direct disk I/O, you can't access the 10th sector in a track. The diskROM always uses 9 sectors per track. Although a format with 8 sector per track also exists, maybe some old MSX diskROMs also support that. Shevek wrote: I think it is the same reason as putting the boot sector on the outside of the disk (the widest circle). There is more magnetic space reserved for the sector, so it will be more secure. That's not true. A bigger gap doesn't mean the bytes inside sector get more space, it only means they are surrounded by more space. Does anyone know what the function of the gaps is in the first place? Is it only for giving the computer time to prepare for the next sector? Or does it have an impact on data safety as well? Bye, Maarten MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Re: Speed difference between disk formatted on PC and MSX
At 04:49 PM 4/15/99 MET, you wrote: BTW, speaking of disks on PC/MSX... A disk formatted on MSX usually has a name (of the computer/diskrom) in sector 0. After a disk has been put in a PC, this name is overwritten by something like IHC). Does anyone know why the PC overwrites the name? The same thing happened to me right this morning! I was helping Rieks translate some difficult parts of the intro of Firehawk. When I tested my patch program I was going to send to him, the patched disk refused to work. To find the error, I made a DSK image of the patched disk and compared it to a non-patched disk. Apart from the changes the patch should have made, the OEM ID had changed. I had no idea how this happened and it didn't occur again when I replayed all my actions and logged the results. I don't think all PCs do this, it probably depends on the operating system. I'm running Win95 here. I think it's very dangerous behaviour, because a lot of multiple disk sector-based games use the OEM ID to identify which disk is which. Does anyone know how to turn it off? There may be some kind of obscure registry setting affecting this. Bye, Maarten MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Movement high speed SPRITES in language machine
Hello, I want to know if you have a ROUTINE in language machine from BASIC for make move the SPRITE to tall speed in language machine, understands!!, because from BASIC is slow for create videogame, understands!!!, all ok Do me know your good person newses Bye bye. ANDREA from Italy. MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Movement high speed SPRITES in language machine
Hello, I want to know if you have a ROUTINE in language machine from BASIC for make move the SPRITE to tall speed in language machine, understands!!, because from BASIC is slow for create videogame, understands!!!, all ok Do me know your good person newses Bye bye. ANDREA from Italy. MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
RE: Speed difference between disk formatted on PC and MSX
You can access the 10th sector without directly accessing the controller. The diskrom splits the logical sector number into three parts: - side number - track number - sector number (normally 1 - 9) This division routine (BC = BC/DE, remainder HL) calls a hook (F27F) at the end of its calculation. All that has to be done is set HL to the appropiate value, 10 for example and this 10 will be used to address sector number 10 within a certain track. But it could also be 240, it is just a value to identify the sector number on the disk. Normally these sector numbers range from 1 - 9, but they can also be something like 101, 102, 103, 104, 105 - 109. The diskrom normally only searches for 1 - 9, which is the remainder value + 1. But by changing the value returned by this particular hook you can change all that. Rests only to be able to write a different track than the normal one. I have seen this technique being used in several copy protection programs. To test this on a MSX/MSX2, write the following two instructions at address F27F: LD (9000H),HL RET And view the value written at 9000h-9001h after reading a logical sector in basic. Have fun. Frits -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Maarten ter Huurne Sent: Friday, April 16, 1999 4:34 PM To: [EMAIL PROTECTED] Subject: Re: Speed difference between disk formatted on PC and MSX Adriano Camargo Rodrigues da Cunha wrote: But with a small gap do I gain more disk space, don't I? In theory, yes. You can fit 10 sectors into a track if you make the gaps small enough. But unless you're doing direct disk I/O, you can't access the 10th sector in a track. The diskROM always uses 9 sectors per track. Although a format with 8 sector per track also exists, maybe some old MSX diskROMs also support that. Shevek wrote: I think it is the same reason as putting the boot sector on the outside of the disk (the widest circle). There is more magnetic space reserved for the sector, so it will be more secure. That's not true. A bigger gap doesn't mean the bytes inside sector get more space, it only means they are surrounded by more space. Does anyone know what the function of the gaps is in the first place? Is it only for giving the computer time to prepare for the next sector? Or does it have an impact on data safety as well? Bye, Maarten MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/) MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Prices of CDs sold at Tilburg by FONY
These are the minimum prices for the CDs in our auction at Tilburg. See you next saturday! Auction starts at 12:00 More info at http://www.fony.msxnet.org MSX Super Best Antiques Media type: 2x Audio CD Producer: Konami Price: HFL 60 Salamander Remixes Media type: Audio CD Producer: Konami Price: HFL 50 Salamander Again Media type: Audio CD Producer: Konami Price: HFL 40 Snatcher Midi Power 5 Media type: Audio CD Producer: Konami Price: HFL 60 MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
XSW-Magazine 27, Release on MSX Fair Tilbrug...
Hello, We finished our magazine a few days ago, the release will be at the MSX-fair in Tilburg, April 24th. People who are subscribed to our magazine and visit the MSX-fair in Tilburg can get their issue at our stand. People who can't visit the fair or forget to collect their issue of our magazine will get it soon after the fair by mail... --[ MARI ]-- -- Visit XSW-Magazine's HomePage at: http://www.xsw-msx.demon.nl -- M.H.M. van den Broek Molenweg 17 5342 TA Oss The Netherlands +31 (412) 630653 / +31 (622) 125592 -- MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Re: Some questions
Main advantage of the LS120: faster when reading normal floppies, ability to use 1.44MB disks on msx. Disadvantage: it is approx 4* slower than the ZIP, it is not possible to read copy-protected disks Well ain't that useful. A disk is copy-protected so you can't read it. huh? *** What's the damn use of such a disk??? *** Some copy protections use unformatted sectors and CRC errors, both of which you could call "sectors you can't read". But other copy protections use for example tracks above 80 and more sectors per track. If the LS120 would have a restriction that allow just 80 tracks to be read, some copy protected software won't run anymore. If the LS120 has a buffer, the copy protections based on duplicate sectors with different contents won't run anymore. And the latter group includes Micro Cabin and Sunrise games, which are well worth playing in my opinion. Well that's too bad. But why should this drive REPLACE the old one??? Rather two drives than one is my opinion. So you can still play the old games. ~Grauw MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Re: Speed difference between disk formatted on PC and MSX
Hi When I DOSSCAN a DD disk formatted on PC, I get about 12 or 13 kB/s, but when I DOSSCAN a DD disk formatted on my MSX, I get 16 or 17 kB/s! Can anyone explain me the difference, exactly? Thanks! Disks are used not very often on the PC so the first part they (the dealers) cut in on are the floppydrives. The most PC-drives are just very cheap models. ~Grauw MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Re: Msx Fair Tilburg
Are there going to be nametags on all you visitors?? A very good idea, but I keep forgetting to make one everytime. Anyway, didn't CGV Tilburg release a list of standholders (or whatever it is called)??? I'm of Datax, and I'll be there (of Mariah Carey). ~Grauw MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Re: Japanese and European Konami's (was:KV2MSX1)
A little while ago I received my Metal Gear cartridge from the Netherlands. When I put this in my Turbo R, I was a little disappointed to see that there was totally no difference. Here in Japan, Metal Gear is very expensive. The one and only copy I have seen had to cost about 8500 yen, about HFL 150,-. As I heard there is much difference between the REAL Japanese story of Metal Gear and the translation of (probably) Homesoft, I wanted to play the game in Japanese. But it didn't work. Metal Gear 1??? Mine cost only about 60 guilders when I bought it... Nice for you, buddy, but I guess that wasn't a Japanese version... Ah... yes. Ofcourse. ~Grauw MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Re: Connect a 26 pin FDD to your MSX....
Hi,
Today I did connect an external FDD used in laptops to my MSX2. These
drives have only a 26-pin connector. Here goes the cable schematics.
Somebody may put it in a MSX hardware page...
pin at FDD connector (26) pin at MSX drive interface conn.(34) signal name
1 - (from power source) +5V
2 8 Index
3 - (from power source) +5V
4 10 Drive select 0 for drive A: or
12 Drive select 1 for drive B:
5 - (from power source) +5V
6 Not connected Disk change
7 Not connected Reserved
8 34 Ready
9 Not connected Media
10 16 Motor on
11 Not connected Density select
12 18 Direction
13 Not connected In use
14 20 Step
15 odd pins and power source Ground, 0V
16 22 Write data
17 odd pins and power source Ground, 0V
18 24 Write gate
19 odd pins and power source Ground, 0V
20 26 Track 00
21 odd pins and power source Ground, 0V
22 28 Write Protect
23 odd pins and power source Ground, 0V
24 30 Read data
25 odd pins and power source Ground, 0V
26 32 Side 1 select
Thank you, thank you, thank you, thank you, thank you!!!
Just what I needed!!! Now I finally know the pin-layout of this stupid
connector.
Manuel: Into the F.A.Q.!!! (obligation!)
Now I can advance a little further in my MSX VG8245 into a laptop-project
("the smallest MSX")... Still two problems: The HD-connector is different
too (but someone said they probably know the layout in the Amiga-scene,
where this pin-layout was used alot), and the connection of the LCD-display
(if I'm not mistaken the VDP has LCD-capacities?). Anyway, I'm not a real
hardware-man, that's a problem. Maybe, if someone does a nice offer and
promises to do his best to finish it I am willing to sell the laptop
(including 60MB _very_tiny_ and _very_tiny_too_ HD FDD and an VG8245)(the
Laptop itself is quite messed up but I've still got all the parts)...
I can take it to Tilburg.
~Grauw
MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put
in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the
quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Re: Movement high speed SPRITES in language machine
Hello, I want to know if you have a ROUTINE in language machine from BASIC for make move the SPRITE to tall speed in language machine, understands!!, because from BASIC is slow for create videogame, understands!!!, all ok Do me know your good person newses Ahhh.. Now I get what you mean. But, unfortunately, I don't have such a routine. The sprite-routines of Basic are fast enough, Basic itself is too slow to create a videogame. But you might be able to speed it up by directly accessing the VDP using VPEEK, VPOKE and VDP(). ~Grauw MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
Speed difference between disk formatted on PC and MSX
Hi Alex: AW I agree on this explanation. You can doublecheck this theory by AW analyzing the track with some kind of track analysis tool. If I AW remember correctly, there exists some kind of japanese copy program AW which can analyze the track for you. Though, I do not remember its AW name. I think you're speaking about Formula :) It's one of the best copying program for MSX. It uses low-level access to the disk controller, so it only works with some controllers. BTW, it works on my Turbo-R perfectly. Salidos, digo ... Saludos. JAMon ([EMAIL PROTECTED]) *MSX Dreams* Apdo. Correos 3294 18080 Granada ... GAME DESIGN: JANUS, MOO, JEMINI. MUSIC: MIYAMOTO. SOUND: JEMINI MSX Mailinglist. To unsubscribe, send an email to [EMAIL PROTECTED] and put in the body (not subject) "unsubscribe msx [EMAIL PROTECTED]" (without the quotes :-) Problems? contact [EMAIL PROTECTED] (www.stack.nl/~wiebe/mailinglist/)
