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what is union REGS

fahad123 (1)
in am working on a detect mouse programme there is a line in that programme can anyone tell me what is this ?

 
 
  union REGS in, out; //REGS is a union
Peter87 (11238)
It defines two REGS objects, in and out.
Last edited on
Duthomhas (13212)
You should look at your compiler's documentation before posting questions like this.

It is a structure to hold the values of all the 16-bit x86 hardware registers for use in functions that generate or capture hardware interrupts.
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