TIGA(7A)          MISC. REFERENCE MANUAL PAGES           TIGA(7A)



NAME
     /dev/tiga0 - TIGA  (Amiga  A2410  graphics  board)  hardware
     access device

SYNOPSIS
     int fd;
     fd = open("/dev/tiga0", mode);

DESCRIPTION
     /dev/tiga0 is a special file  which  allows  access  to  the
     first  Amiga A2410 graphics board in the sytem.  This driver
     will eventually provide a medium-level interface to the TIGA
     (Texas  Instruments  Graphics Archetecture) operating system
     of the TI 34010 processor.  In  this  temporary  implementa-
     tion,  /dev/tiga0 is similar to /dev/mem (see mem(7)) except
     that only the address range 0x0000-0xffff can  be  accessed.
     This  range corresponds to the 64K address space occupied by
     the board, and contains the interface registers for communi-
     cation  with  the  TI  34010  processor.   /dev/tiga1, etc.,
     correspond to the second, etc., boards in the system.

FILES
     /dev/tiga? - special files for accessing TIGA boards

SEE ALSO
     open(2), close(2), read(2), write(2), mmap(2), mem(7).

WARNING
     Although this interface provides some protection, it is pos-
     sible  to  crash  the machine or completely mangle all video
     output, among other potential disasters.  The permissions of
     /dev/tiga*  should  reflect  this;  only priveleged, trusted
     programs will use this interface.






















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