obp/obp/arch/sun4v/hfcodes.fth

\ ========== Copyright Header Begin ==========================================
\
\ Hypervisor Software File: hfcodes.fth
\
\ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
\
\  - Do no alter or remove copyright notices
\
\  - Redistribution and use of this software in source and binary forms, with
\    or without modification, are permitted provided that the following
\    conditions are met:
\
\  - Redistribution of source code must retain the above copyright notice,
\    this list of conditions and the following disclaimer.
\
\  - Redistribution in binary form must reproduce the above copyright notice,
\    this list of conditions and the following disclaimer in the
\    documentation and/or other materials provided with the distribution.
\
\    Neither the name of Sun Microsystems, Inc. or the names of contributors
\ may be used to endorse or promote products derived from this software
\ without specific prior written permission.
\
\     This software is provided "AS IS," without a warranty of any kind.
\ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
\ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
\ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
\ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
\ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
\ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
\ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
\ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
\ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
\ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
\ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
\
\ You acknowledge that this software is not designed, licensed or
\ intended for use in the design, construction, operation or maintenance of
\ any nuclear facility.
\
\ ========== Copyright Header End ============================================
id: @(#)hfcodes.fth 1.2 06/10/11
purpose: Implementation of  Hypervisor API "htrap"
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

headerless
5 constant max-#outs
5 constant max-#ins

headers

code (htrap) ( [arg0 ... arg4] func# trap# -- [ret4 ... ret0] )
   max-#ins 1+  0 do            \ 5 args, one fun#, and trap# on stack
      sp %o5 i - pop            \ load them into the o's
   loop
   %g0 tos always trapif        \ trap# is located in 'tos'
   %o4 sp push                  \ return value 3
   %o3 sp push                  \ return value 2
   %o2 sp push                  \ return value 1
   %o1 sp push                  \ return value 0
   %o0 tos move                 \ put 'status' on top of stack
c;

: htrap ( [arg0 ... arg4] #in #out func# trap# -- [ret4 ... ret0] )
   rot >r 2>r                   ( ??? #in )( R: #out trap# fun# )
   max-#ins swap - 0 ?do 0 loop ( arg0 ... arg4 )( R: #out trap# fun# )
   2r> (htrap)                  ( ret4 ret3 ret2 ret1 ret0 ) ( r: #out )

   max-#outs r@ - 0 ?do max-#outs 1- roll loop  ( ??? ret0 ?? )
   max-#outs r> - 0 ?do drop loop               ( ??? ret0 )
;

headerless