Floppy Speed

BenniP · 29 May 2004, 01:24

Just a question.
What is faster? The Floppy Speed "Turbo" or "800%"?

Thanks.

29 May 2004, 05:26

Why don't you time it to make sure ! ?

I would put my money on Turbo.

BenniP · 29 May 2004, 13:08

And you were right Jim.
"Turbo" is twice as fast as "800%".

But why is the "Turbo" on the left side? Shouldn't be the fastest option on the right side?

derSammler · 29 May 2004, 14:58

Because >100% will always emulate the whole disk drive, only faster. Whereas "Turbo" throws away a lot of features to be as fast as possible.

BenniP · 29 May 2004, 15:05

In that case it makes sense.

What features are left out?

03 June 2004, 16:22

I use 800% for compatibility reasons, additionally i switch winuae in turbo mode with End+Pause wich gives very short loading times

Toni Wilen · 03 June 2004, 17:16

turbo = no emulated disk rotation, whole dma transfer is instant (+2 frame delay for better compatibility) faked indexsync and wordsync.

Only difference between 100%, 200%, 400% and 800% is emulated disk rotation rate. (100% = regular 300RPM, 200% = 600RPM etc..) Everything else is emulated exactly.

trodas · 14 June 2004, 17:36

Sounds cool

Now how about a PC floppy reading?

...or any true floppy drive, eh... I just trying to make the setup works, so I can try Win2.04 under PC task, if things will work

Any ideas, dudes?

BenniP · 14 June 2004, 17:50

If you want to use your amiga disk on the pc, you could use the Catweasel MK3 from Individual Computers. It can be mounted and used in winuae.

trodas · 14 June 2004, 18:37

Nope, I need to make PC floppy (boot MS DOS) readable under the WinUAE emulator...

I bit odd, I admit...

...so far, now I desperately searching for anything that convert PC - I even offer DD floppy - to ADF file - on PC

Then I can install PC Task under WinUEA and then I can run the Windows 2 - I hope

BenniP · 14 June 2004, 18:43

You can add a Directory As A Harddrive. And point it to your disk A:

I don't know if that really works, but try it.

trodas · 14 June 2004, 18:56

Whoooa, that was a good idea

...sadly, even it apears working, damn PC Task not buying it

First I tried just add the floppy as boot: device, however replacing DF0: with BOOT: still not convice PC Task 4.3 demo to work

Later I tried disable all the DF0-3 floppyes and mount the PC floppy as DF0 - this apears to work, Amiga OS did not like the drive (good

) but mounting PC0 did not make things better and same for PC Task - the damn thing still did not boot

thomas · 14 June 2004, 20:36

Here is the procedure to go:

1. create your boot disk on the PC
2. use WinImage or similar to create an image file from it. The image must be uncompressed and without a header (exactly 737.280 Bytes)
3. start WinUAE and mount PC0:
4. press F12 and create a custom ADF. Insert it into DF0
5. Use TSGui or any other Amiga image writing program to write the image to PC0.
6. reboot the Amiga, start PC-Task and use the custom ADF in DF0.

14 June 2004, 20:58

Probably it won't work without JIT but I prefer using warp mode for speeding things up. It's assigned to my middle mouse button

29 May 2004, 01:24	#1
BenniP ? Join Date: Sep 2003 Location: Winnenden / Germany Age: 39 Posts: 91	Floppy Speed Just a question. What is faster? The Floppy Speed "Turbo" or "800%"? Thanks.

03 June 2004, 16:22	#6
kokoko3k Posts: n/a	800 Vs Turbo I use 800% for compatibility reasons, additionally i switch winuae in turbo mode with End+Pause wich gives very short loading times

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Program to speed up floppy disk access?	BarryB	support.Apps	22	26 March 2013 19:30
Floppy Drive Emulation Speed and available memory	Supamax	support.WinUAE	20	13 October 2009 06:12
SPS images ignore floppy speed	NoX1911	support.WinUAE	4	21 May 2006 14:20
Floppy Drive Emulation Speed...	DamienD	support.WinUAE	7	12 September 2005 17:32
WinUAE Floppy Speed	Critter	support.WinUAE	2	25 November 2003 14:52

29 May 2004, 05:26	#2
Jim Posts: n/a	Why don't you time it to make sure ! ? I would put my money on Turbo.

29 May 2004, 13:08	#3
BenniP ? Join Date: Sep 2003 Location: Winnenden / Germany Age: 39 Posts: 91	And you were right Jim. "Turbo" is twice as fast as "800%". But why is the "Turbo" on the left side? Shouldn't be the fastest option on the right side?

29 May 2004, 14:58	#4
derSammler Senior Member Join Date: Jun 2001 Location: Germany Posts: 1,645	Because >100% will always emulate the whole disk drive, only faster. Whereas "Turbo" throws away a lot of features to be as fast as possible.

29 May 2004, 15:05	#5
BenniP ? Join Date: Sep 2003 Location: Winnenden / Germany Age: 39 Posts: 91	In that case it makes sense. What features are left out?

03 June 2004, 17:16	#7
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	turbo = no emulated disk rotation, whole dma transfer is instant (+2 frame delay for better compatibility) faked indexsync and wordsync. Only difference between 100%, 200%, 400% and 800% is emulated disk rotation rate. (100% = regular 300RPM, 200% = 600RPM etc..) Everything else is emulated exactly.

14 June 2004, 17:36	#8
trodas old Amiga fanatic Join Date: Feb 2003 Location: Czech republic Age: 48 Posts: 92	Sounds cool Now how about a PC floppy reading? ...or any true floppy drive, eh... I just trying to make the setup works, so I can try Win2.04 under PC task, if things will work Any ideas, dudes?

14 June 2004, 17:50	#9
BenniP ? Join Date: Sep 2003 Location: Winnenden / Germany Age: 39 Posts: 91	If you want to use your amiga disk on the pc, you could use the Catweasel MK3 from Individual Computers. It can be mounted and used in winuae.

14 June 2004, 18:37	#10
trodas old Amiga fanatic Join Date: Feb 2003 Location: Czech republic Age: 48 Posts: 92	Nope, I need to make PC floppy (boot MS DOS) readable under the WinUAE emulator... I bit odd, I admit... ...so far, now I desperately searching for anything that convert PC - I even offer DD floppy - to ADF file - on PC Then I can install PC Task under WinUEA and then I can run the Windows 2 - I hope

14 June 2004, 18:43	#11
BenniP ? Join Date: Sep 2003 Location: Winnenden / Germany Age: 39 Posts: 91	You can add a Directory As A Harddrive. And point it to your disk A: I don't know if that really works, but try it.

14 June 2004, 18:56	#12
trodas old Amiga fanatic Join Date: Feb 2003 Location: Czech republic Age: 48 Posts: 92	Whoooa, that was a good idea ...sadly, even it apears working, damn PC Task not buying it First I tried just add the floppy as boot: device, however replacing DF0: with BOOT: still not convice PC Task 4.3 demo to work Later I tried disable all the DF0-3 floppyes and mount the PC floppy as DF0 - this apears to work, Amiga OS did not like the drive (good ) but mounting PC0 did not make things better and same for PC Task - the damn thing still did not boot

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

14 June 2004, 20:36	#13
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 6,985	Here is the procedure to go: 1. create your boot disk on the PC 2. use WinImage or similar to create an image file from it. The image must be uncompressed and without a header (exactly 737.280 Bytes) 3. start WinUAE and mount PC0: 4. press F12 and create a custom ADF. Insert it into DF0 5. Use TSGui or any other Amiga image writing program to write the image to PC0. 6. reboot the Amiga, start PC-Task and use the custom ADF in DF0.

14 June 2004, 20:58	#14
oldpx Posts: n/a	Probably it won't work without JIT but I prefer using warp mode for speeding things up. It's assigned to my middle mouse button