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id: @(#)msloop.fth 1.5 06/02/07
purpose: 
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

headers

d# 5.000.000 value system-tick-speed

code (stick-wait) ( sticks -- )
   scr  sc1			rdstick
   sc1  1		sc1	sllx
   sc1  1		sc1	srlx
   sc1  tos		tos	add		\ End
   h# 20 .align					\ Align on a Cache Line
   begin
      tos  sc1		%g0	subcc
      scr  sc1			rdstick
      sc1  1		sc1	sllx
   0<=  until
      sc1  1		sc1	srlx		\ (delay)

   sp			tos	pop
c;

: (ms ( ms -- )
   system-tick-speed * d# 1000 / (stick-wait)
;

h# 8000000.0000000 1- constant stick-mask

: getmsecs ( -- value )
   stick@ stick-mask and d# 1000 *  system-tick-speed / 
;
' getmsecs is get-msecs

' (ms is ms

headers
openbios/openboot/obp/arch/sun4s/msloop.fth

Commit

obp/arch/sun4s/msloop.fth
