Could you clarify this? The only thing that I'm aware of is that as part of the MMX instruction set, if you use MM registers you need to clear them (EMMS instruction) before you can use the FPU.
Well, that certainly is a good question. I'm not trying to imply anything, but the Wikipedia article on the matter clearly states that the Motorola 68000 is a 16-bit architecture even though its general purpose registers, and basic arithmetic functions are 32-bit, simply because it has a 16-bit data bus.
It also states here that a 16-bit architecture is one with a 16-bit data bus, address bus or register size. Perhaps the Motorola 68000 was never advertized as a 32-bit machine, because that sort of marketing ploy was not exercised at the time?
Context switching doesn't apply. There's no such thing as an SSE5 process. All non-privileged instructions on the CPU are available to the processes that run on it. The OS swaps out the full state of the CPU when switching context, so it swaps those SSE registers out as well. Therefore, the OS must know what registers to swap out, but since these instructions appear to work on the same ol' SSE/SSE2 registers, a relatively recent OS should have no problem supporting applications that use them.
I believe the 64-bit designation refers to the width of the general purpose registers. This usually correlates to the address space used, but has nothing to do with the address bus. The 8086, for example, while being a 16-bit processor had a 20-bit address bus. The 8088 was a 16-bit processor, but only had an 8-bit data bus to save costs. Both were 16-bit processors, because the general purpose registers (AX, BX, CX, DX) were 16-bit.
In the x64 world, the general purpose registers are 64-bit wide. This also used to influence the width of the 'int' datatype in the C compiler, although I'm not sure that 'int' is a 64-bit integer when compiling x64 code.
I suppose that was the tradeoff for having an OS that ran on industrial PC's as well as poor old StrongARM embedded hardware. Working on such an embedded project, I must say I've never come across this 32MB per process limit, or the 32 processes limit. I suppose that in many cases, since WindowsCE is used mostly on OEM solutions, the application software can be designed to meet this limitation.
Talking about PalmOS, I personally think that they had a better concept than the PocketPC OS. On the Palm, once you installed a program, it was running. There was no difference between installing a program and running it. Think about it.
In Windows CE (prior to 6.0, at least), the process identity also meant the exact place in addressing space that the process was placed. Think about it: 32 processes at 32MB per process max, means a total needed address range of 1GB.
I never had any issues with paying for my music. I had issues with the DRM that was applied to that music. AllofMP3 offered that same music without DRM. If they turn out to be illegal (because the group they pay royalties to turns out not to have to license the music to AllOfMP3) then so be it.
I found an alternative, that better suits my taste of music and is completely legit, but a lot more expensive.
So you're saying that the Sysinternals tools are explicitly checking whether the OS it runs on is really Windows? Maybe they're doing you a favour in case your OS is not 100% compatible. Maybe they choose to make tools that run only on Windows, and support it only on Windows.
Why should low level debugging tools be made cross-platform?
You do know that most Sysinternals tools use APIs that are not part of the Win32 spec but are the native Windows NT APIs? And that most tools install drivers on the fly while running to get more intrinsic information out? That's what makes them so good.
I guess that Wine is simply made compatible enough to support productivity apps and games.
You should read Effective C++ by Scott Meyers. Twice. And then you should read More Effective C++ by Scott Meyers. And then you should read both of those books again. Every day before breakfast.
If your system libraries are written in a language that producese executable code of which the interface is based on common standards, then it can be called from any language that is capable of interfacing with these same standards. That way, you don't need to have a bridge. This may or may not be the case with Objective C, but sure isn't with Python.
I can write libraries in.NET for example, using C#, and if I stick with the CLS compliant stuff for my interfaces, someone else can call them from VB.Net or JavaScript.NET without any need for a bridge, because they all produce executable code that follows a common standard.
If a library is written in C, and is compiled into standard library format, or if it conforms to DLL specifications or it's a shared library, then I can call it from whatever language that produces the same sort of binaries and that can be linked with the library.
But being a first class language is not what that means, in my opinion. I think a "first class language" means that it's supported by those who decide where to go with the operating system and its libraries. I suppose C is a first class language on many platforms, but it isn't on MacOS X because it's not the language promoted by the vendors of the product to which they pledge support.
Of course you can give whatever meaning you want to the term "first class". It's a marketing thing.
Well, for one thing because having your data (i have a huge LCD monitor, no actually I have two!) and your applications (I have so much data I don't know how to back it up) in a mobile device (and I use an operating system too!) can mean you can adapt quicker (my CPU is really fast, no really!) to situations like having to code at mother-in-law's (her cooking is great too!) or browsing the web while in the park (I also have a built in WiFi) or watching a movie on the road/flight (I have lots of battery!).
I think you need to understand your computer down to the level closest to the CPU as possible. You'll need it in case your typical stack of abstraction layers fail to blind you from the truth.
I've seen to many developers shrug and give up because "it must be a Windows bug" only to find out they really didn't understand the implications of the things they were trying to accomplish. And this is the same on any platform or OS that you work with.
You can be productive and use a GUI IDE for the rest of your life, but you'll need to understand the concepts that are playing out under the hood.
Of course I'm doing it with good reason. The reasons are that I can prove to my authorities that I purchased the music and legally imported it.
The prices they charge are sufficient to pay for the royalties they pay to the music labels with which they have agreements. It's just fair enough. No scam artists, no russian assholes, no mafia. It's real.
It's easier than using some P2P program and not being able to trust what you receive. And I contribute to the music industry by making a statement that I don't like music that is crippled in any way. I don't usually download music from illegal sites (I can't say I've never done it. Mayone once. Or twice.) but lately I bought a couple of CDs that wouldn't play in my computer and that I couldn't rip unless I used a felt tip pen.
And I bought music from MSN Music which is crippled in so many ways it's not just inconvenient, it's just rubbish.
These guys provide a great quality service, I've had no downtimes whatsoever, the music always streams in at top speed in the exact encoding I want without any DRM. Ok so it's cheap. I don't care. I would still buy from them if they were 5x as expensive.
You're just so frickin locked in the thought that these are russian mafia scumbags. They're not, so quit whining about it and get on with your life!
Perhaps you should get yourself educated more instead of flaming like this. I wasn't sure myself so I did some research before I decided to hand over my credit card number and now I'm a happy user. It's the best music service in the world not because of the price but because there's no stupid DRM crap.
Do a search and fix yourself man, because you're not gonna fix the world.
Also, he wasn't so heroic. If I read the article in the link you mentioned correctly, then at first he refused to have his ship used as a plug. The mayor had to come up and convince him, and he would eventually agree only if the ship would be "summoned", probably in order to get the government to pay for the damages.
I commute to one city, my gf commutes to another one. And with the kids and all, it's a much better neighbourhood to grow up in than what I'm used to. There's a lot more advantages to living where I live than the problems introduced with commuting that far.
I'm just tired of government institutions advocating the use of public transport. If it's there, and it's more useful than using a car, people will choose the public transport. They don't need other incentives like guilt.
It's not all black and white as you're trying to make your point. I have to commute a pretty big distance in my country (which is almost the smalles in the world, Belgium) and I have to do it by car because doing it with public transport is too unpractical. My gf uses the public transport for 3 hours every day, she takes a train, a subway and then a bus just to get to work. If she would drive the distance it would take her only 30-45 minutes.
There's a new system in our country where if you give up your car and turn in the license plate, you get a free national pass for all the public transport. This is a nice initiative, but people tend to forget there are those situations where it's just not doable.
Slashdot Mirror
Of course they're telling you they're doing it. You just didn't bother to read it.
Could you clarify this? The only thing that I'm aware of is that as part of the MMX instruction set, if you use MM registers you need to clear them (EMMS instruction) before you can use the FPU.
Well, that certainly is a good question. I'm not trying to imply anything, but the Wikipedia article on the matter clearly states that the Motorola 68000 is a 16-bit architecture even though its general purpose registers, and basic arithmetic functions are 32-bit, simply because it has a 16-bit data bus.
It also states here that a 16-bit architecture is one with a 16-bit data bus, address bus or register size. Perhaps the Motorola 68000 was never advertized as a 32-bit machine, because that sort of marketing ploy was not exercised at the time?
dave
Context switching doesn't apply. There's no such thing as an SSE5 process. All non-privileged instructions on the CPU are available to the processes that run on it. The OS swaps out the full state of the CPU when switching context, so it swaps those SSE registers out as well. Therefore, the OS must know what registers to swap out, but since these instructions appear to work on the same ol' SSE/SSE2 registers, a relatively recent OS should have no problem supporting applications that use them.
I believe the 64-bit designation refers to the width of the general purpose registers. This usually correlates to the address space used, but has nothing to do with the address bus. The 8086, for example, while being a 16-bit processor had a 20-bit address bus. The 8088 was a 16-bit processor, but only had an 8-bit data bus to save costs. Both were 16-bit processors, because the general purpose registers (AX, BX, CX, DX) were 16-bit.
In the x64 world, the general purpose registers are 64-bit wide. This also used to influence the width of the 'int' datatype in the C compiler, although I'm not sure that 'int' is a 64-bit integer when compiling x64 code.
...you can ship it.
It's that simple!
Actually, I think they did just that!
Well,
I suppose that was the tradeoff for having an OS that ran on industrial PC's as well as poor old StrongARM embedded hardware. Working on such an embedded project, I must say I've never come across this 32MB per process limit, or the 32 processes limit. I suppose that in many cases, since WindowsCE is used mostly on OEM solutions, the application software can be designed to meet this limitation.
Talking about PalmOS, I personally think that they had a better concept than the PocketPC OS. On the Palm, once you installed a program, it was running. There was no difference between installing a program and running it. Think about it.
Dave
Actually, it is not.
c e-6-memory-architecture.html
In Windows CE (prior to 6.0, at least), the process identity also meant the exact place in addressing space that the process was placed. Think about it: 32 processes at 32MB per process max, means a total needed address range of 1GB.
Check this out: http://www.addlogic.se/articles/articles/windows-
Not to worry.
I never had any issues with paying for my music. I had issues with the DRM that was applied to that music. AllofMP3 offered that same music without DRM. If they turn out to be illegal (because the group they pay royalties to turns out not to have to license the music to AllOfMP3) then so be it.
I found an alternative, that better suits my taste of music and is completely legit, but a lot more expensive.
http://www.beatport.com/
Dave
So you're saying that the Sysinternals tools are explicitly checking whether the OS it runs on is really Windows? Maybe they're doing you a favour in case your OS is not 100% compatible. Maybe they choose to make tools that run only on Windows, and support it only on Windows.
Why should low level debugging tools be made cross-platform?
Dave
You do know that most Sysinternals tools use APIs that are not part of the Win32 spec but are the native Windows NT APIs? And that most tools install drivers on the fly while running to get more intrinsic information out? That's what makes them so good.
I guess that Wine is simply made compatible enough to support productivity apps and games.
Canon: (low-end to high end) D30, 350D, 30D, 1D
Nikon: (low-end to high end) D50, D70, D1 (older), d200
Please mod parent up, because I don't know what he's talking about, but it sounds like he does.
You should read Effective C++ by Scott Meyers. Twice. And then you should read More Effective C++ by Scott Meyers. And then you should read both of those books again. Every day before breakfast.
Well since the parent is posting a link to a satirical website I wouldn't moderate his post as "informative" but oh well.
No, actually you don't.
.NET for example, using C#, and if I stick with the CLS compliant stuff for my interfaces, someone else can call them from VB.Net or JavaScript.NET without any need for a bridge, because they all produce executable code that follows a common standard.
If your system libraries are written in a language that producese executable code of which the interface is based on common standards, then it can be called from any language that is capable of interfacing with these same standards. That way, you don't need to have a bridge. This may or may not be the case with Objective C, but sure isn't with Python.
I can write libraries in
If a library is written in C, and is compiled into standard library format, or if it conforms to DLL specifications or it's a shared library, then I can call it from whatever language that produces the same sort of binaries and that can be linked with the library.
But being a first class language is not what that means, in my opinion. I think a "first class language" means that it's supported by those who decide where to go with the operating system and its libraries. I suppose C is a first class language on many platforms, but it isn't on MacOS X because it's not the language promoted by the vendors of the product to which they pledge support.
Of course you can give whatever meaning you want to the term "first class". It's a marketing thing.
I don't see how a language can be "first class" if you have to use a bridge. I don't think that's what "first class" means.
Well, for one thing because having your data (i have a huge LCD monitor, no actually I have two!) and your applications (I have so much data I don't know how to back it up) in a mobile device (and I use an operating system too!) can mean you can adapt quicker (my CPU is really fast, no really!) to situations like having to code at mother-in-law's (her cooking is great too!) or browsing the web while in the park (I also have a built in WiFi) or watching a movie on the road/flight (I have lots of battery!).
Yes.
I think you need to understand your computer down to the level closest to the CPU as possible. You'll need it in case your typical stack of abstraction layers fail to blind you from the truth.
I've seen to many developers shrug and give up because "it must be a Windows bug" only to find out they really didn't understand the implications of the things they were trying to accomplish. And this is the same on any platform or OS that you work with.
You can be productive and use a GUI IDE for the rest of your life, but you'll need to understand the concepts that are playing out under the hood.
Dave
Of course I'm doing it with good reason. The reasons are that I can prove to my authorities that I purchased the music and legally imported it.
The prices they charge are sufficient to pay for the royalties they pay to the music labels with which they have agreements. It's just fair enough. No scam artists, no russian assholes, no mafia. It's real.
It's easier than using some P2P program and not being able to trust what you receive. And I contribute to the music industry by making a statement that I don't like music that is crippled in any way. I don't usually download music from illegal sites (I can't say I've never done it. Mayone once. Or twice.) but lately I bought a couple of CDs that wouldn't play in my computer and that I couldn't rip unless I used a felt tip pen.
And I bought music from MSN Music which is crippled in so many ways it's not just inconvenient, it's just rubbish.
These guys provide a great quality service, I've had no downtimes whatsoever, the music always streams in at top speed in the exact encoding I want without any DRM. Ok so it's cheap. I don't care. I would still buy from them if they were 5x as expensive.
You're just so frickin locked in the thought that these are russian mafia scumbags. They're not, so quit whining about it and get on with your life!
Perhaps you should get yourself educated more instead of flaming like this. I wasn't sure myself so I did some research before I decided to hand over my credit card number and now I'm a happy user. It's the best music service in the world not because of the price but because there's no stupid DRM crap.
Do a search and fix yourself man, because you're not gonna fix the world.
Dave
Also, he wasn't so heroic. If I read the article in the link you mentioned correctly, then at first he refused to have his ship used as a plug. The mayor had to come up and convince him, and he would eventually agree only if the ship would be "summoned", probably in order to get the government to pay for the damages.
Well,
I commute to one city, my gf commutes to another one. And with the kids and all, it's a much better neighbourhood to grow up in than what I'm used to. There's a lot more advantages to living where I live than the problems introduced with commuting that far.
I'm just tired of government institutions advocating the use of public transport. If it's there, and it's more useful than using a car, people will choose the public transport. They don't need other incentives like guilt.
It's not all black and white as you're trying to make your point. I have to commute a pretty big distance in my country (which is almost the smalles in the world, Belgium) and I have to do it by car because doing it with public transport is too unpractical. My gf uses the public transport for 3 hours every day, she takes a train, a subway and then a bus just to get to work. If she would drive the distance it would take her only 30-45 minutes.
There's a new system in our country where if you give up your car and turn in the license plate, you get a free national pass for all the public transport. This is a nice initiative, but people tend to forget there are those situations where it's just not doable.