68000 motorola

alex68 · 22 January 2016, 12:20

Perhaps the 68000 reaches 50 MHz? Which was the maximum reached overclocked MHz range?

ReadOnlyCat · 22 January 2016, 14:44

At that time there was little margin for overclocking, you would be very lucky if an 8 MHz 68k worked at all at 12 or 15 MHz.

alex68 · 22 January 2016, 17:47

I have read that you can reach speeds up to 33 MHz is true? Greetings

zipper · 22 January 2016, 18:10

68HC000 was overclockable by a great margin.

alex68 · 22 January 2016, 18:30

Diferences 68000 vs 68HC000??

alex68 · 22 January 2016, 23:02

The latest models of the 68000 had an internal improvement or were the same as the first? Greetings

alex68 · 24 January 2016, 22:28

Anyone know the differences between the 68000 and the 68hc000?

zipper · 24 January 2016, 23:17

HC chips were Complementary metal–oxide–semiconductor (CMOS)
https://en.wikipedia.org/wiki/Motorola_68000

alex68 · 27 January 2016, 18:29

The 68000-12 MHz reaches one million instructions per second or has more?

Leffmann · 27 January 2016, 21:46

At 12 MHz, 1 MIPS is a reasonable general performance, but it can peak at 3 MIPS.

roondar · 28 January 2016, 11:15

I read somewhere that Motorola designed it to do ~1 MIPS at 10Mhz, but I'm pretty sure they meant 'using 16bit operations'

I wonder what the MIPS rating would be for 32-bit operations. It can't be 0.5 because some 32-bit operations run in 4 cycles but it's definitely not 1 either...

Leffmann · 29 January 2016, 00:30

I used Vamos to measure a run of SAS/C compiling a small program, and it came down to about 10.4 CPI, which becomes 1.15 MIPS at 12 MHz, so it's not an entirely unreasonable estimate.

alex68 · 29 January 2016, 13:57

Hello someone I can explain how it can be that this micro 1980 has squeezed both its hardware and different speeds (MHz) and mips, I read that there was a plaque on the market called neogeo with this micro year 90 and not for to advance their increasingly powerful gaming without changing hardware and more megabits as possible for an old micro? an expert in this micro can help me know whether any subsequent revisions until it was discontinued introduced something inside more cache etc.

idrougge · 29 January 2016, 14:16

No.

alex68 · 30 January 2016, 03:49

8 mhz=1 mip 12mhz=??

eXeler0 · 30 January 2016, 04:26

Quote:

Originally Posted by alex68

Hello someone I can explain how it can be that this micro 1980 has squeezed both its hardware and different speeds (MHz) and mips, I read that there was a plaque on the market called neogeo with this micro year 90 and not for to advance their increasingly powerful gaming without changing hardware and more megabits as possible for an old micro? an expert in this micro can help me know whether any subsequent revisions until it was discontinued introduced something inside more cache etc.

Google translate FTW
Here's some info about various 68k versions..
http://www.cpu-world.com/CPUs/68000/index.html
As far as I can tell, >20MHz is officially rare. (One of my A500s has a 14MHz 68000)

zipper · 30 January 2016, 10:54

I remember seeing a notice about Supra28 68HC000 been clocked at 42 MHz.

eXeler0 · 30 January 2016, 13:02

Quote:

Originally Posted by zipper

I remember seeing a notice about Supra28 68HC000 been clocked at 42 MHz.

Are you sure that wasn't a 030?
BTW. . similar discussion 5 years ago here:
http://www.atariage.com/forums/index...e-for-ST-line?

zipper · 30 January 2016, 13:53

No it definitely was Supraturbo hacking, early 90's.

eXeler0 · 30 January 2016, 14:52

Quote:

Originally Posted by zipper

No it definitely was Supraturbo hacking, early 90's.

so one of these
http://www.bigbookofamigahardware.co...uct.aspx?id=87
overclocked to 42MHz by someone else than Supra you mean. (i.e. unofficial)

22 January 2016, 12:20	#1
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	68000 motorola Perhaps the 68000 reaches 50 MHz? Which was the maximum reached overclocked MHz range?

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22 January 2016, 14:44	#2
ReadOnlyCat Code Kitten Join Date: Aug 2015 Location: Montreal/Canadia Age: 52 Posts: 1,178	At that time there was little margin for overclocking, you would be very lucky if an 8 MHz 68k worked at all at 12 or 15 MHz.

22 January 2016, 17:47	#3
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	I have read that you can reach speeds up to 33 MHz is true? Greetings

22 January 2016, 18:10	#4
zipper Registered User Join Date: Mar 2004 Location: finland Posts: 1,837	68HC000 was overclockable by a great margin.

22 January 2016, 18:30	#5
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	Diferences 68000 vs 68HC000??

22 January 2016, 23:02	#6
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	The latest models of the 68000 had an internal improvement or were the same as the first? Greetings

24 January 2016, 22:28	#7
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	Anyone know the differences between the 68000 and the 68hc000?

24 January 2016, 23:17	#8
zipper Registered User Join Date: Mar 2004 Location: finland Posts: 1,837	HC chips were Complementary metal–oxide–semiconductor (CMOS) https://en.wikipedia.org/wiki/Motorola_68000

27 January 2016, 18:29	#9
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	The 68000-12 MHz reaches one million instructions per second or has more?

27 January 2016, 21:46	#10
Leffmann Join Date: Jul 2008 Location: Sweden Posts: 2,269	At 12 MHz, 1 MIPS is a reasonable general performance, but it can peak at 3 MIPS.

28 January 2016, 11:15	#11
roondar Registered User Join Date: Jul 2015 Location: The Netherlands Posts: 3,408	I read somewhere that Motorola designed it to do ~1 MIPS at 10Mhz, but I'm pretty sure they meant 'using 16bit operations' I wonder what the MIPS rating would be for 32-bit operations. It can't be 0.5 because some 32-bit operations run in 4 cycles but it's definitely not 1 either...

29 January 2016, 00:30	#12
Leffmann Join Date: Jul 2008 Location: Sweden Posts: 2,269	I used Vamos to measure a run of SAS/C compiling a small program, and it came down to about 10.4 CPI, which becomes 1.15 MIPS at 12 MHz, so it's not an entirely unreasonable estimate.

29 January 2016, 13:57	#13
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	Hello someone I can explain how it can be that this micro 1980 has squeezed both its hardware and different speeds (MHz) and mips, I read that there was a plaque on the market called neogeo with this micro year 90 and not for to advance their increasingly powerful gaming without changing hardware and more megabits as possible for an old micro? an expert in this micro can help me know whether any subsequent revisions until it was discontinued introduced something inside more cache etc.

29 January 2016, 14:16	#14
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,332	No.

30 January 2016, 03:49	#15
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	8 mhz=1 mip 12mhz=??

30 January 2016, 10:54	#17
zipper Registered User Join Date: Mar 2004 Location: finland Posts: 1,837	I remember seeing a notice about Supra28 68HC000 been clocked at 42 MHz.

30 January 2016, 13:53	#19
zipper Registered User Join Date: Mar 2004 Location: finland Posts: 1,837	No it definitely was Supraturbo hacking, early 90's.

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