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Annotation of gforth/cache-fast4.vmg, revision 1.4

1.1       anton       1: \ stack cache setup
                      2: 
1.4     ! anton       3: \ Copyright (C) 2003,2004,2005,2007 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
                      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 spTOS Cell
                     23: \E register spb Cell
                     24: \E register spc Cell
                     25: \E register spd Cell
                     26: \E register spe Cell
                     27: \E register spf Cell
                     28: \E register spg Cell
                     29: \E register sph Cell
                     30: 
                     31: \E create IPregs IPTOS ,
                     32: \E create regs sph , spg , spf , spe , spd , spc , spb , spTOS ,
                     33: \ \E create regs spTOS ,
                     34: 
                     35: \E IPregs 1 0 stack-state IPss1
1.3       anton      36: \E regs 8 th 0  -1 stack-state ss0
                     37: \E regs 7 th 1  0 stack-state ss1
                     38: \E regs 6 th 2  1 stack-state ss2
                     39: \E regs 5 th 3  2 stack-state ss3
                     40: \E regs 4 th 4  3 stack-state ss4
                     41: \E regs 3 th 5  4 stack-state ss5
                     42: \E regs 2 th 6  5 stack-state ss6
                     43: \E regs 1 th 7  6 stack-state ss7
                     44: \E regs 0 th 8  7 stack-state ss8
                     45: \ \E regs 1 th 0 -1 stack-state ss0
1.1       anton      46: \ \E regs           1  0 stack-state ss1
                     47: 
                     48: \ the first of these is the default state (for now)
                     49: \E state S4
                     50: \E state S0
                     51: \E state S1
                     52: \E state S2
                     53: \E state S3
                     54: \E state S5
                     55: \E state S6
                     56: \E state S7
                     57: \E state S8
                     58: 
                     59: \E ss0 data-stack S0 set-ss
                     60: \E ss1 data-stack S1 set-ss
                     61: \E ss2 data-stack S2 set-ss
                     62: \E ss3 data-stack S3 set-ss
                     63: \E ss4 data-stack S4 set-ss
                     64: \E ss5 data-stack S5 set-ss
                     65: \E ss6 data-stack S6 set-ss
                     66: \E ss7 data-stack S7 set-ss
                     67: \E ss8 data-stack S8 set-ss
                     68: 
                     69: \E IPss1 inst-stream S0 set-ss
                     70: \E IPss1 inst-stream S1 set-ss
                     71: \E IPss1 inst-stream S2 set-ss
                     72: \E IPss1 inst-stream S3 set-ss
                     73: \E IPss1 inst-stream S4 set-ss
                     74: \E IPss1 inst-stream S5 set-ss
                     75: \E IPss1 inst-stream S6 set-ss
                     76: \E IPss1 inst-stream S7 set-ss
                     77: \E IPss1 inst-stream S8 set-ss
                     78: 
                     79: \E data-stack to cache-stack
                     80: \E here 9 cache-states 2! s0 , s1 , s2 , s3 , s4 , s5 , s6 , s7 , s8 ,
                     81: \ \E here 2 cache-states 2! s0 , s1 ,
                     82: 
                     83: \ !! the following should be automatic
                     84: \E S4 to state-default
                     85: \E state-default to state-in
                     86: \E state-default to state-out