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[smlnj] View of /sml/trunk/src/MLRISC/x86/instructions/x86instr-ext.sml
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View of /sml/trunk/src/MLRISC/x86/instructions/x86instr-ext.sml

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Revision 797 - (download) (annotate)
Fri Mar 16 00:00:17 2001 UTC (18 years, 5 months ago) by leunga
File size: 576 byte(s)

   x86 optimizations for x := x op y where x is a memory location.
(* x86instr-ext.sml
 *
 * COPYRIGHT (c) 2000 Bell Labs, Lucent Technologies
 *
 * extensions to the x86 instruction set.
 *)

structure X86InstrExt = struct
  datatype fsz = single | double | extended

  datatype ('s, 'r, 'f, 'c) sext 
    (* push an integer value onto the H/W stack *)
    = PUSHL of 'r
    | POP of 'r

    (* FSTPS/L/T is a way of pulling things off the floating point 
     * stack and must therefore take FREG f as argument 
     *)
    | FSTPS of 'f
    | FSTPL of 'f
    | FSTPT of 'f

    | LEAVE
    | RET of 'r

    | LOCK_CMPXCHGL of ('r * 'r)
end

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