version 1.36, 2007/02/26 19:07:05
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version 1.42, 2010/12/31 18:09:02
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/* This file defines a number of threading schemes. |
/* This file defines a number of threading schemes. |
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Copyright (C) 1995, 1996,1997,1999,2003,2004,2005 Free Software Foundation, Inc. |
Copyright (C) 1995, 1996,1997,1999,2003,2004,2005,2007,2008,2010 Free Software Foundation, Inc. |
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This file is part of Gforth. |
This file is part of Gforth. |
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Gforth is free software; you can redistribute it and/or |
Gforth is free software; you can redistribute it and/or |
modify it under the terms of the GNU General Public License |
modify it under the terms of the GNU General Public License |
as published by the Free Software Foundation; either version 2 |
as published by the Free Software Foundation, either version 3 |
of the License, or (at your option) any later version. |
of the License, or (at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
This program is distributed in the hope that it will be useful, |
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GNU General Public License for more details. |
GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
You should have received a copy of the GNU General Public License |
along with this program; if not, write to the Free Software |
along with this program; if not, see http://www.gnu.org/licenses/. |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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This files defines macros for threading. Many sets of macros are |
This files defines macros for threading. Many sets of macros are |
Line 136 before_goto: goto *real_ca; after_goto:
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Line 135 before_goto: goto *real_ca; after_goto:
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# define SET_IP(p) do {ip=(p); cfa=*ip;} while(0) |
# define SET_IP(p) do {ip=(p); cfa=*ip;} while(0) |
# define NEXT_INST (cfa) |
# define NEXT_INST (cfa) |
# define INC_IP(const_inc) do {cfa=IP[const_inc]; ip+=(const_inc);} while(0) |
# define INC_IP(const_inc) do {cfa=IP[const_inc]; ip+=(const_inc);} while(0) |
# define DEF_CA Label ca; |
# define DEF_CA Label MAYBE_UNUSED ca; |
# define NEXT_P1 do {\ |
# define NEXT_P1 do {\ |
if (DEBUG_DITC && (cfa<=vm_prims+DOESJUMP || cfa>=vm_prims+npriminfos)) \ |
if (DEBUG_DITC && (cfa<=vm_prims+DOER_MAX || cfa>=vm_prims+npriminfos)) \ |
fprintf(stderr,"NEXT encountered prim %p at ip=%p\n", cfa, ip); \ |
fprintf(stderr,"NEXT encountered prim %p at ip=%p\n", cfa, ip); \ |
ip++;} while(0) |
ip++;} while(0) |
# define NEXT_P1_5 do {ca=**cfa; GOTO(ca);} while(0) |
# define NEXT_P1_5 do {ca=**cfa; GOTO(ca);} while(0) |
# define EXEC1(XT) ({DEF_CA cfa=(XT);\ |
# define EXEC1(XT) ({DEF_CA cfa=(XT);\ |
if (DEBUG_DITC && (cfa>vm_prims+DOESJUMP && cfa<vm_prims+npriminfos)) \ |
if (DEBUG_DITC && (cfa>vm_prims+DOER_MAX && cfa<vm_prims+npriminfos)) \ |
fprintf(stderr,"EXEC encountered xt %p at ip=%p, vm_prims=%p, xts=%p\n", cfa, ip, vm_prims, xts); \ |
fprintf(stderr,"EXEC encountered xt %p at ip=%p, vm_prims=%p, xts=%p\n", cfa, ip, vm_prims, xts); \ |
ca=**cfa; ca;}) |
ca=**cfa; ca;}) |
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Line 187 before_goto: goto *real_ca; after_goto:
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Line 186 before_goto: goto *real_ca; after_goto:
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*/ |
*/ |
#define KILLS asm("":"=X"(cfa)); |
#define KILLS asm("":"=X"(cfa)); |
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#warning direct threading scheme 8: cfa dead, i386 hack |
/* #warning direct threading scheme 8: cfa dead, i386 hack */ |
# define NEXT_P0 |
# define NEXT_P0 |
# define CFA cfa |
# define CFA cfa |
# define IP (ip) |
# define IP (ip) |
Line 203 before_goto: goto *real_ca; after_goto:
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Line 202 before_goto: goto *real_ca; after_goto:
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#else |
#else |
/* indirect THREADED */ |
/* indirect THREADED */ |
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#warning indirect threading scheme 8: low latency,cisc |
/* #warning indirect threading scheme 8: low latency,cisc */ |
# define NEXT_P0 |
# define NEXT_P0 |
# define CFA cfa |
# define CFA cfa |
# define IP (ip) |
# define IP (ip) |