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kernel/linux-rt-4.4.41/arch/x86/include/asm/vga.h 396 Bytes
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  /*
   *	Access to VGA videoram
   *
   *	(c) 1998 Martin Mares <mj@ucw.cz>
   */
  
  #ifndef _ASM_X86_VGA_H
  #define _ASM_X86_VGA_H
  
  /*
   *	On the PC, we can just recalculate addresses and then
   *	access the videoram directly without any black magic.
   */
  
  #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
  
  #define vga_readb(x) (*(x))
  #define vga_writeb(x, y) (*(y) = (x))
  
  #endif /* _ASM_X86_VGA_H */