Annotation of gforth/cache0.vmg, revision 1.2

1.1       anton       1: \ stack cache setup
                      2: 
                      3: \ Copyright (C) 2003 Free Software Foundation, Inc.
                      4: 
                      5: \ This file is part of Gforth.
                      6: 
                      7: \ Gforth is free software; you can redistribute it and/or
                      8: \ modify it under the terms of the GNU General Public License
                      9: \ as published by the Free Software Foundation; either version 2
                     10: \ of the License, or (at your option) any later version.
                     11: 
                     12: \ This program is distributed in the hope that it will be useful,
                     13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15: \ GNU General Public License for more details.
                     16: 
                     17: \ You should have received a copy of the GNU General Public License
                     18: \ along with this program; if not, write to the Free Software
                     19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
                     20: 
                     21: \E register IPTOS Cell
                     22: \E register spa Cell
                     23: \E register spb Cell
                     24: \E register spc Cell
                     25: \E register spd Cell
                     26: 
                     27: \E create IPregs IPTOS ,
                     28: \E create regs spc , spb , spa ,
                     29: 
                     30: \E IPregs 1 0 stack-state IPss1
1.2     ! anton      31: \E regs 3 th 0  0 stack-state ss0
        !            32: \E regs 2 th 1  0 stack-state ss1
        !            33: \E regs 1 th 2  1 stack-state ss2
        !            34: \E regs 0 th 3  2 stack-state ss3
1.1       anton      35: 
                     36: \ the first of these is the default state
                     37: \E state S0
                     38: \E state S1
                     39: \E state S2
                     40: \E state S3
                     41: 
                     42: \E ss0 data-stack S0 set-ss
                     43: \E ss1 data-stack S1 set-ss
                     44: \E ss2 data-stack S2 set-ss
                     45: \E ss3 data-stack S3 set-ss
                     46: 
                     47: \E IPss1 inst-stream S0 set-ss
                     48: \E IPss1 inst-stream S1 set-ss
                     49: \E IPss1 inst-stream S2 set-ss
                     50: \E IPss1 inst-stream S3 set-ss
                     51: 
                     52: \E data-stack to cache-stack
                     53: \E here 4 cache-states 2! s0 , s1 , s2 , s3 ,
                     54: 
                     55: \ !! the following should be automatic
                     56: \E S0 to state-default
                     57: \E state-default to state-in
                     58: \E state-default to state-out

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