obp/obp/dev/network/ophir/util.fth

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id: @(#)util.fth 1.1 06/02/16
purpose: Intel Ophir/82571 utility routines
copyright: Copyright 2006 Sun Microsystems, Inc. All Rights Reserved
copyright: Use is subject to license terms.

headerless

1 d# 31 lshift constant bit31

\ Shift right - works for 64 bit.
: rshift        ( data shift -- data )
   >r xlsplit r>                        ( lo hi shift )
   0 ?do                                ( lo hi )
      dup 1 and d# 31 lshift -rot       ( bit lo hi )
      1 rshift -rot                     ( hi' bit lo )
      1 rshift bit31 invert and or      ( hi' lo' )
      swap                              ( lo' hi' )
   loop                                 ( lo' hi' )
   lxjoin                               ( data )
;

-1 d# 32 rshift constant 32bit-mask

\ Logical operations only work on 32 bits for this code.
: or32          ( a b -- c ) or 32bit-mask and ;
: and32         ( a b -- c ) and 32bit-mask and ;

: wait-status   ( timeout check-acf -- ok? )
   swap 0 ?do
      dup execute if unloop drop true exit then
      1 ms
   loop drop false
;

: timed-out?    ( when -- flag ) get-msecs - 0< ;

: diag-type     ( adr,len -- ) diagnostic-mode? if type else 2drop then ;
: diag-cr       ( -- ) diagnostic-mode? if cr then ;
: diag-type-cr  ( adr,len -- ) diag-type diag-cr ;


\ Round-up - to a given power of 2.
: round-up      ( val 2^^N -- val' )
   1 - tuck + swap invert and
;

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