CRYNWR PACKET DRIVER
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He made the experience that packet drivers are often the same for a large number of models by the same manufacturer, so he recommends not to try finding a packet driver specific for your model number. Still, not everything was perfect.
Network Setup - DOSBoxWiki
The buffer management code is fairly high performance code. Obviously there is a lot of code to add if you want this to do something useful, but it will get you started. Reboot boot messages packet driver That's all. After that, I was able to send and receive packets with impunity! The packet driver specification creates a high level programming interface pscket Ethernet cards that allows one to ignore the low level details of the cards and program the various cards using a relatively simple set of calls.
Some drivers only need the vector and find the other values by themselves. The most frequently used packet driver software interrupt number is 0x After a few days of debugging and some consultation with Russell Nelson at Crynwr I was able to get around the problem.
TCPacket - Using Turbo C++ 3.0 with a Packet Driver
Where to find them The first place to look for a packet driver should be the installation medium that came with your card. It also includes the assembler code that I used to work around 'The Xircom Problem. Documentation is in the form of comments interspersed in the code. In the example above the driver is loaded into high memory by using the command " LH ".
pxcket
PC/TCP Packet Driver Specification
Interfacing to the hardware is a problem though - most of us are not trained to write device drivers, it is a difficult environment to debug in, and there are a lot of possible Ethernet crhnwr out there. If this gets anybody interested in DOS networking and saves them from the pain and frustration I went through, it will be worth it.
Russell knew what it was right away when I said Xircom. As you can see in the figure above in the dark grey fieldsit is also possible to run Novell NetWare over of a packet driver: Navigation Main page Recent changes Random page Help. The first place to look for a packet driver should be the installation medium that came with pafket card. Software interrupts are not extremely difficult to use, but they are certainly more work than a normal function call.
The packet driver API is based on software interrupts which allow it to be used from almost any programming language that can generate an interrupt. It also includes some buffer management code that is used for receiving incoming data from the packet driver.
Crynwr - FreeDOS
This page was last modified on 28 Decemberat The first option " 0x60 " sets the software interrupt vector used by the driver. You can compile with a memory model other than compact as long as you preserve the far pointers. Retrieved from " http: Luckily there was a solution for these problems - the packet driver specification. This bridge had been crossed many years ago.
But trying to receive packets was a nightmare - if I received a packet the machine would immediately crash. If you port to another compiler please drop me xrynwr line and let me know how it went. The first problem that I ran into was figuring out how to actually send and receive bytes using an Ethernet card.
The details on the packet driver spec can be found here: Navigation menu Personal tools Log in. This page has been accessed 44, times. Views Read View source View history. It is also expected that you have the packet driver specification handy and are familiar with it.
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