Annotation of gforth/cache1.vmg, revision 1.9

1.1       anton       1: \ stack cache setup
                      2: 
1.8       anton       3: \ Copyright (C) 2003,2004,2007 Free Software Foundation, Inc.
1.1       anton       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
1.9     ! anton       9: \ as published by the Free Software Foundation, either version 3
1.1       anton      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
1.9     ! anton      18: \ along with this program. If not, see http://www.gnu.org/licenses/.
1.1       anton      19: 
                     20: \E register IPTOS Cell
1.2       anton      21: \E register spTOS Cell
1.5       anton      22: \E register spb Cell
                     23: \E register spc Cell
1.2       anton      24: \  \E register spd Cell
1.1       anton      25: 
                     26: \E create IPregs IPTOS ,
1.5       anton      27: \E create regs spc , spb , spTOS ,
                     28: \ \E create regs spTOS ,
1.1       anton      29: 
                     30: \E IPregs 1 0 stack-state IPss1
1.7       anton      31: \E regs 3 th 0  -1 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
                     35: \ \E regs 1 th 0 -1 stack-state ss0
1.5       anton      36: \ \E regs           1  0 stack-state ss1
1.1       anton      37: 
1.2       anton      38: \ the first of these is the default state (for now)
1.1       anton      39: \E state S1
1.3       anton      40: \E state S0
1.5       anton      41: \E state S2
1.2       anton      42: \ \E state S3
1.1       anton      43: 
1.3       anton      44: \E ss0 data-stack S0 set-ss
1.1       anton      45: \E ss1 data-stack S1 set-ss
1.5       anton      46: \E ss2 data-stack S2 set-ss
1.2       anton      47: \  \E ss3 data-stack S3 set-ss
1.1       anton      48: 
1.3       anton      49: \E IPss1 inst-stream S0 set-ss
1.1       anton      50: \E IPss1 inst-stream S1 set-ss
1.5       anton      51: \E IPss1 inst-stream S2 set-ss
1.2       anton      52: \  \E IPss1 inst-stream S3 set-ss
1.1       anton      53: 
                     54: \E data-stack to cache-stack
1.5       anton      55: \E here 3 cache-states 2! s0 , s1 , s2 ,
                     56: \ \E here 2 cache-states 2! s0 , s1 ,
1.1       anton      57: 
                     58: \ !! the following should be automatic
1.2       anton      59: \E S1 to state-default
1.1       anton      60: \E state-default to state-in
                     61: \E state-default to state-out

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