+++ /dev/null
-/* -*-comment-start: "//";comment-end:""-*-
- * Mes --- Maxwell Equations of Software
- * Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
- *
- * This file is part of Mes.
- *
- * Mes is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or (at
- * your option) any later version.
- *
- * Mes is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Mes. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#if POSIX
-#error "POSIX not supported"
-#endif
-
-#include <stdio.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <mlibc.h>
-
-char arena[2000];
-
-typedef int SCM;
-
-int g_debug = 0;
-int g_free = 0;
-
-SCM g_continuations = 0;
-SCM g_symbols = 0;
-SCM g_stack = 0;
-SCM r0 = 0; // a/env
-SCM r1 = 0; // param 1
-SCM r2 = 0; // save 2+load/dump
-SCM r3 = 0; // continuation
-
-enum type_t {TCHAR, TCLOSURE, TCONTINUATION, TFUNCTION, TKEYWORD, TMACRO, TNUMBER, TPAIR, TREF, TSPECIAL, TSTRING, TSYMBOL, TVALUES, TVECTOR, TBROKEN_HEART};
-
-struct scm {
- enum type_t type;
- SCM car;
- SCM cdr;
-};
-
-struct function {
- int (*function) (void);
- int arity;
- char *name;
-};
-
-#if __MESC__
-struct scm *g_cells = arena;
-#else
-struct scm *g_cells = (struct scm*)arena;
-#endif
-
-#define cell_nil 1
-#define cell_f 2
-#define cell_t 3
-#define cell_dot 4
-// #define cell_arrow 5
-#define cell_undefined 6
-#define cell_unspecified 7
-#define cell_closure 8
-#define cell_circular 9
-#define cell_begin 10
-#define cell_symbol_dot 11
-#define cell_symbol_lambda 12
-#define cell_symbol_begin 13
-#define cell_symbol_if 14
-#define cell_symbol_quote 15
-#define cell_symbol_set_x 16
-
-#define cell_vm_apply 45
-#define cell_vm_apply2 46
-
-#define cell_vm_eval 47
-
-#define cell_vm_begin 56
-//#define cell_vm_begin_read_input_file 57
-#define cell_vm_begin2 58
-
-#define cell_vm_return 63
-
-SCM tmp;
-SCM tmp_num;
-SCM tmp_num2;
-
-int ARENA_SIZE = 200;
-struct function g_functions[5];
-int g_function = 0;
-
-
-SCM make_cell_ (SCM type, SCM car, SCM cdr);
-struct function fun_make_cell_ = {&make_cell_,3,"core:make-cell"};
-struct scm scm_make_cell_ = {TFUNCTION,0,0};
- //, "core:make-cell", 0};
-SCM cell_make_cell_;
-
-SCM cons (SCM x, SCM y);
-struct function fun_cons = {&cons,2,"cons"};
-struct scm scm_cons = {TFUNCTION,0,0};
- // "cons", 0};
-SCM cell_cons;
-
-SCM car (SCM x);
-struct function fun_car = {&car,1,"car"};
-struct scm scm_car = {TFUNCTION,0,0};
- // "car", 0};
-SCM cell_car;
-
-SCM cdr (SCM x);
-struct function fun_cdr = {&cdr,1,"cdr"};
-struct scm scm_cdr = {TFUNCTION,0,0};
-// "cdr", 0};
-SCM cell_cdr;
-
-// SCM eq_p (SCM x, SCM y);
-// struct function fun_eq_p = {&eq_p,2,"eq?"};
-// scm scm_eq_p = {TFUNCTION,0,0};
-// SCM cell_eq_p;
-
-#define TYPE(x) (g_cells[x].type)
-
-#define CAR(x) g_cells[x].car
-#define LENGTH(x) g_cells[x].car
-#define STRING(x) g_cells[x].car
-
-#define CDR(x) g_cells[x].cdr
-#define CONTINUATION(x) g_cells[x].cdr
-
-#define FUNCTION(x) g_functions[g_cells[x].cdr]
-#define VALUE(x) g_cells[x].cdr
-#define VECTOR(x) g_cells[x].cdr
-
-#define MAKE_CHAR(n) make_cell_ (tmp_num_ (TCHAR), 0, tmp_num2_ (n))
-#define MAKE_NUMBER(n) make_cell_ (tmp_num_ (TNUMBER), 0, tmp_num2_ (n))
-
-#define CAAR(x) CAR (CAR (x))
-#define CADAR(x) CAR (CDR (CAR (x)))
-#define CDADAR(x) CAR (CDR (CAR (CDR (x))))
-#define CADR(x) CAR (CDR (x))
-
-#define MAKE_STRING(x) make_cell_ (tmp_num_ (TSTRING), x, 0)
-
-SCM
-alloc (int n)
-{
- assert (g_free + n < ARENA_SIZE);
- SCM x = g_free;
- g_free += n;
- return x;
-}
-
-SCM
-make_cell_ (SCM type, SCM car, SCM cdr)
-{
- SCM x = alloc (1);
- assert (TYPE (type) == TNUMBER);
- TYPE (x) = VALUE (type);
- if (VALUE (type) == TCHAR || VALUE (type) == TNUMBER) {
- if (car) CAR (x) = CAR (car);
- if (cdr) CDR(x) = CDR(cdr);
- }
- else if (VALUE (type) == TFUNCTION) {
- if (car) CAR (x) = car;
- if (cdr) CDR(x) = CDR(cdr);
- }
- else {
- CAR (x) = car;
- CDR(x) = cdr;
- }
- return x;
-}
-
-SCM
-tmp_num_ (int x)
-{
- VALUE (tmp_num) = x;
- return tmp_num;
-}
-
-SCM
-tmp_num2_ (int x)
-{
- VALUE (tmp_num2) = x;
- return tmp_num2;
-}
-
-SCM
-cons (SCM x, SCM y)
-{
- VALUE (tmp_num) = TPAIR;
- return make_cell_ (tmp_num, x, y);
-}
-
-SCM
-car (SCM x)
-{
- return CAR (x);
-}
-
-SCM
-cdr (SCM x)
-{
- return CDR(x);
-}
-
-SCM
-gc_push_frame ()
-{
- SCM frame = cons (r1, cons (r2, cons (r3, cons (r0, cell_nil))));
- g_stack = cons (frame, g_stack);
- return g_stack;
-}
-
-SCM
-append2 (SCM x, SCM y)
-{
- if (x == cell_nil) return y;
- assert (TYPE (x) == TPAIR);
- return cons (car (x), append2 (cdr (x), y));
-}
-
-SCM
-pairlis (SCM x, SCM y, SCM a)
-{
- if (x == cell_nil)
- return a;
- if (TYPE (x) != TPAIR)
- return cons (cons (x, y), a);
- return cons (cons (car (x), car (y)),
- pairlis (cdr (x), cdr (y), a));
-}
-
-SCM
-assq (SCM x, SCM a)
-{
- while (a != cell_nil && x == CAAR (a)) a = CDR (a);
- return a != cell_nil ? car (a) : cell_f;
-}
-
-SCM
-push_cc (SCM p1, SCM p2, SCM a, SCM c) ///((internal))
-{
- puts ("push cc\n");
- SCM x = r3;
- r3 = c;
- r2 = p2;
- gc_push_frame ();
- r1 = p1;
- r0 = a;
- r3 = x;
- return cell_unspecified;
-}
-
-SCM caar (SCM x) {return car (car (x));}
-SCM cadr (SCM x) {return car (cdr (x));}
-SCM cdar (SCM x) {return cdr (car (x));}
-SCM cddr (SCM x) {return cdr (cdr (x));}
-
-#if __GNUC__
-//FIXME
-SCM call (SCM,SCM);
-SCM gc_pop_frame ();
-#endif
-
-SCM
-eval_apply ()
-{
- eval_apply:
- switch (r3)
- {
- case cell_vm_apply: {goto apply;}
- case cell_unspecified: {return r1;}
- }
-
- SCM x = cell_nil;
- SCM y = cell_nil;
-
- apply:
- switch (TYPE (car (r1)))
- {
- case TFUNCTION: {
- puts ("apply.function\n");
- r1 = call (car (r1), cdr (r1));
- goto vm_return;
- }
- }
- vm_return:
- x = r1;
- gc_pop_frame ();
- r1 = x;
- goto eval_apply;
-}
-
-SCM
-call (SCM fn, SCM x)
-{
- puts ("call\n");
- if ((FUNCTION (fn).arity > 0 || FUNCTION (fn).arity == -1)
- && x != cell_nil && TYPE (CAR (x)) == TVALUES)
- x = cons (CADAR (x), CDR (x));
- if ((FUNCTION (fn).arity > 1 || FUNCTION (fn).arity == -1)
- && x != cell_nil && TYPE (CDR (x)) == TPAIR && TYPE (CADR (x)) == TVALUES)
- x = cons (CAR (x), cons (CDADAR (x), CDR (x)));
- switch (FUNCTION (fn).arity)
- {
- case 0: {return (FUNCTION (fn).function) ();}
- case 1: {return ((SCM(*)(SCM))(FUNCTION (fn).function)) (car (x));}
- case 2: {return ((SCM(*)(SCM,SCM))(FUNCTION (fn).function)) (car (x), cadr (x));}
- case 3: {return ((SCM(*)(SCM,SCM,SCM))(FUNCTION (fn).function)) (car (x), cadr (x), car (cddr (x)));}
- case -1: {return ((SCM(*)(SCM))(FUNCTION (fn).function)) (x);}
- }
- return cell_unspecified;
-}
-
-SCM
-gc_peek_frame ()
-{
- SCM frame = car (g_stack);
- r1 = car (frame);
- r2 = cadr (frame);
- r3 = car (cddr (frame));
- r0 = cadr (cddr (frame));
- return frame;
-}
-
-SCM
-gc_pop_frame ()
-{
- SCM frame = gc_peek_frame (g_stack);
- g_stack = cdr (g_stack);
- return frame;
-}
-
-SCM
-mes_g_stack (SCM a) ///((internal))
-{
- r0 = a;
- r1 = MAKE_CHAR (0);
- r2 = MAKE_CHAR (0);
- r3 = MAKE_CHAR (0);
- g_stack = cons (cell_nil, cell_nil);
- return r0;
-}
-
-//\f Environment setup
-SCM
-make_tmps (struct scm* cells)
-{
- tmp = g_free++;
- cells[tmp].type = TCHAR;
- tmp_num = g_free++;
- cells[tmp_num].type = TNUMBER;
- tmp_num2 = g_free++;
- cells[tmp_num2].type = TNUMBER;
- return 0;
-}
-
-SCM
-make_symbol_ (SCM s)
-{
- VALUE (tmp_num) = TSYMBOL;
- SCM x = make_cell_ (tmp_num, s, 0);
- g_symbols = cons (x, g_symbols);
- return x;
-}
-
-SCM
-make_symbol (SCM s)
-{
- SCM x = 0;
- return x ? x : make_symbol_ (s);
-}
-
-SCM
-acons (SCM key, SCM value, SCM alist)
-{
- return cons (cons (key, value), alist);
-}
-
-//\f Jam Collector
-SCM g_symbol_max;
-
-SCM
-gc_init_cells ()
-{
- return 0;
-}
-
-// INIT NEWS
-
-SCM
-mes_symbols () ///((internal))
-{
- gc_init_cells ();
- // gc_init_news ();
-
-#if __GNUC__ && 0
- //#include "mes.symbols.i"
-#else
-g_free++;
-// g_cells[cell_nil] = scm_nil;
-
-g_free++;
-// g_cells[cell_f] = scm_f;
-
-g_free++;
-// g_cells[cell_t] = scm_t;
-
-g_free++;
-// g_cells[cell_dot] = scm_dot;
-
-g_free++;
-// g_cells[cell_arrow] = scm_arrow;
-
-g_free++;
-// g_cells[cell_undefined] = scm_undefined;
-
-g_free++;
-// g_cells[cell_unspecified] = scm_unspecified;
-
-g_free++;
-// g_cells[cell_closure] = scm_closure;
-
-g_free++;
-// g_cells[cell_circular] = scm_circular;
-
-g_free++;
-// g_cells[cell_begin] = scm_begin;
-
-///
-g_free = 44;
-g_free++;
-// g_cells[cell_vm_apply] = scm_vm_apply;
-
-g_free++;
-// g_cells[cell_vm_apply2] = scm_vm_apply2;
-
-g_free++;
-// g_cells[cell_vm_eval] = scm_vm_eval;
-
-///
-g_free = 55;
-g_free++;
-// g_cells[cell_vm_begin] = scm_vm_begin;
-
-g_free++;
-// g_cells[cell_vm_begin_read_input_file] = scm_vm_begin_read_input_file;
-
-g_free++;
-// g_cells[cell_vm_begin2] = scm_vm_begin2;
-
-///
-g_free = 62;
-g_free++;
-// g_cells[cell_vm_return] = scm_vm_return;
-
-#endif
-
- g_symbol_max = g_free;
- make_tmps (g_cells);
-
- g_symbols = 0;
- for (int i=1; i<g_symbol_max; i++)
- g_symbols = cons (i, g_symbols);
-
- SCM a = cell_nil;
-
- a = acons (cell_symbol_dot, cell_dot, a);
- a = acons (cell_symbol_begin, cell_begin, a);
- a = acons (cell_closure, a, a);
-
- return a;
-}
-
-SCM
-make_closure (SCM args, SCM body, SCM a)
-{
- return make_cell_ (tmp_num_ (TCLOSURE), cell_f, cons (cons (cell_circular, a), cons (args, body)));
-}
-
-SCM
-mes_environment () ///((internal))
-{
- SCM a = 0;
- a = mes_symbols ();
- a = mes_g_stack (a);
- return a;
-}
-
-SCM
-mes_builtins (SCM a)
-{
-#if 0
- //__GNUC__
-//#include "mes.i"
-
-// #include "lib.i"
-// #include "math.i"
-// #include "posix.i"
-// #include "reader.i"
-
-// #include "lib.environment.i"
-// #include "math.environment.i"
-// #include "mes.environment.i"
-// #include "posix.environment.i"
-// #include "reader.environment.i"
-#else
-scm_make_cell_.cdr = g_function;
-g_functions[g_function++] = fun_make_cell_;
-cell_make_cell_ = g_free++;
- g_cells[cell_make_cell_] = scm_make_cell_;
-
-scm_cons.cdr = g_function;
-g_functions[g_function++] = fun_cons;
-cell_cons = g_free++;
-g_cells[cell_cons] = scm_cons;
-
-scm_car.cdr = g_function;
-g_functions[g_function++] = fun_car;
-cell_car = g_free++;
-g_cells[cell_car] = scm_car;
-
-scm_cdr.cdr = g_function;
-g_functions[g_function++] = fun_cdr;
-cell_cdr = g_free++;
-g_cells[cell_cdr] = scm_cdr;
-#endif
- return a;
-}
-
-SCM
-bload_env (SCM a) ///((internal))
-{
- g_stdin = open ("module/mes/read-0.mo", 0);
-#if __GNUC__
- //FIXME GNUC
- //g_stdin = g_stdin ? g_stdin : fopen (PREFIX "module/mes/read-0.mo", "r");
-#endif
- char *p = (char*)g_cells;
- assert (getchar () == 'M');
- assert (getchar () == 'E');
- assert (getchar () == 'S');
- g_stack = getchar () << 8;
- g_stack += getchar ();
- int c = getchar ();
- while (c != EOF)
- {
- *p++ = c;
- c = getchar ();
- }
- g_free = (p-(char*)g_cells) / sizeof (struct scm);
- gc_peek_frame ();
- g_symbols = r1;
- g_stdin = STDIN;
- r0 = mes_builtins (r0);
- return r2;
-}
-
-SCM
-fill ()
-{
- TYPE (0) = 0x6c6c6168;
- CAR (0) = 0x6a746f6f;
- CDR (0) = 0x00002165;
-
- TYPE (1) = TSYMBOL;
- CAR (1) = 0x2d2d2d2d;
- CDR (1) = 0x3e3e3e3e;
-
- TYPE (9) = 0x2d2d2d2d;
- CAR (9) = 0x2d2d2d2d;
- CDR (9) = 0x3e3e3e3e;
-
- // (cons 0 1)
- TYPE (10) = TPAIR;
- CAR (10) = 11;
- CDR (10) = 12;
-
- TYPE (11) = TFUNCTION;
- CAR (11) = 0x58585858;
- // 0 = make_cell_
- // 1 = cons
- // 2 = car
- CDR (11) = 1;
-
- TYPE (12) = TPAIR;
- CAR (12) = 13;
- //CDR (12) = 1;
- CDR (12) = 14;
-
- TYPE (13) = TNUMBER;
- CAR (13) = 0x58585858;
- CDR (13) = 0;
-
- TYPE (14) = TPAIR;
- CAR (14) = 15;
- CDR (14) = 1;
-
- TYPE (15) = TNUMBER;
- CAR (15) = 0x58585858;
- CDR (15) = 1;
-
- return 0;
-}
-
-SCM
-display_ (SCM x)
-{
- //puts ("<display>\n");
- switch (TYPE (x))
- {
- case TCHAR:
- {
- //puts ("<char>\n");
- puts ("#\\");
- putchar (VALUE (x));
- break;
- }
- case TFUNCTION:
- {
- //puts ("<function>\n");
- if (VALUE (x) == 0)
- puts ("core:make-cell");
- if (VALUE (x) == 1)
- puts ("cons");
- if (VALUE (x) == 2)
- puts ("car");
- if (VALUE (x) == 3)
- puts ("cdr");
- break;
- }
- case TNUMBER:
- {
- //puts ("<number>\n");
-#if __GNUC__
- puts (itoa (VALUE (x)));
-#else
- int i;
- i = VALUE (x);
- i = i + 48;
- putchar (i);
-#endif
- break;
- }
- case TPAIR:
- {
- //puts ("<pair>\n");
- //if (cont != cell_f) puts "(");
- puts ("(");
- if (x && x != cell_nil) display_ (CAR (x));
- if (CDR (x) && CDR (x) != cell_nil)
- {
-#if __GNUC__
- if (TYPE (CDR (x)) != TPAIR)
- puts (" . ");
-#else
- int c;
- c = CDR (x);
- c = TYPE (c);
- if (c != TPAIR)
- puts (" . ");
-#endif
- display_ (CDR (x));
- }
- //if (cont != cell_f) puts (")");
- puts (")");
- break;
- }
- case TSPECIAL:
- {
- switch (x)
- {
- case 1: {puts ("()"); break;}
- case 2: {puts ("#f"); break;}
- case 3: {puts ("#t"); break;}
- default:
- {
-#if __GNUC__
- puts ("<x:");
- puts (itoa (x));
- puts (">");
-#else
- puts ("<x>");
-#endif
- }
- }
- break;
- }
- case TSYMBOL:
- {
- switch (x)
- {
- case 11: {puts (" . "); break;}
- case 12: {puts ("lambda"); break;}
- case 13: {puts ("begin"); break;}
- case 14: {puts ("if"); break;}
- case 15: {puts ("quote"); break;}
- case 37: {puts ("car"); break;}
- case 38: {puts ("cdr"); break;}
- case 39: {puts ("null?"); break;}
- case 40: {puts ("eq?"); break;}
- case 41: {puts ("cons"); break;}
- default:
- {
-#if __GNUC__
- puts ("<s:");
- puts (itoa (x));
- puts (">");
-#else
- puts ("<s>");
-#endif
- }
- }
- break;
- }
- default:
- {
- //puts ("<default>\n");
-#if __GNUC__
- puts ("<");
- puts (itoa (TYPE (x)));
- puts (":");
- puts (itoa (x));
- puts (">");
-#else
- puts ("_");
-#endif
- break;
- }
- }
- return 0;
-}
-
-SCM
-simple_bload_env (SCM a) ///((internal))
-{
- puts ("reading: ");
- char *mo = "module/mes/tiny-0-32.mo";
- puts (mo);
- puts ("\n");
- g_stdin = open (mo, 0);
- if (g_stdin < 0) {eputs ("no such file: module/mes/tiny-0-32.mo\n");return 1;}
-
- char *p = (char*)g_cells;
- int c;
-
- assert (getchar () == 'M');
- assert (getchar () == 'E');
- assert (getchar () == 'S');
- puts (" *GOT MES*\n");
-
- g_stack = getchar () << 8;
- g_stack += getchar ();
-
- puts ("stack: ");
- puts (itoa (g_stack));
- puts ("\n");
-
- c = getchar ();
- while (c != -1)
- {
- *p++ = c;
- c = getchar ();
- }
-
- puts ("read done\n");
-
- g_free = (p-(char*)g_cells) / sizeof (struct scm);
-
- if (g_free != 15) exit (33);
-
- g_symbols = 1;
-
- g_stdin = STDIN;
- r0 = mes_builtins (r0);
-
- if (g_free != 19) exit (34);
-
- puts ("cells read: ");
- puts (itoa (g_free));
- puts ("\n");
-
- puts ("symbols: ");
- puts (itoa (g_symbols));
- puts ("\n");
- // display_ (g_symbols);
- // puts ("\n");
-
- display_ (10);
- puts ("\n");
-
- fill ();
- r2 = 10;
-
- if (TYPE (12) != TPAIR)
- exit (33);
-
- puts ("program[");
- puts (itoa (r2));
- puts ("]: ");
-
- display_ (r2);
- //display_ (14);
- puts ("\n");
-
- r0 = 1;
- //r2 = 10;
- return r2;
-}
-
-int
-main (int argc, char *argv[])
-{
- puts ("Hello cons-mes!\n");
- if (argc > 1 && !strcmp (argv[1], "--help")) return eputs ("Usage: mes [--dump|--load] < FILE");
-#if __GNUC__
- if (argc > 1 && !strcmp (argv[1], "--version")) {eputs ("Mes ");return eputs (VERSION);};
-#else
- if (argc > 1 && !strcmp (argv[1], "--version")) {eputs ("Mes ");return eputs ("0.4");};
-#endif
- g_stdin = STDIN;
-
- r0 = mes_environment ();
-
- SCM program = simple_bload_env (r0);
-
- puts ("g_free=");
- puts (itoa(g_free));
- puts ("\n");
-
- push_cc (r2, cell_unspecified, r0, cell_unspecified);
-
- puts ("g_free=");
- puts (itoa(g_free));
- puts ("\n");
-
- puts ("g_stack=");
- puts (itoa(g_stack));
- puts ("\n");
-
- puts ("r0=");
- puts (itoa(r0));
- puts ("\n");
-
- puts ("r1=");
- puts (itoa(r1));
- puts ("\n");
-
- puts ("r2=");
- puts (itoa(r2));
- puts ("\n");
-
- puts ("r3=");
- puts (itoa(r3));
- puts ("\n");
-
- r3 = cell_vm_apply;
- r1 = eval_apply ();
- display_ (r1);
-
- eputs ("\n");
- return 0;
-}
-
+++ /dev/null
-/* -*-comment-start: "//";comment-end:""-*-
- * Mes --- Maxwell Equations of Software
- * Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
- *
- * This file is part of Mes.
- *
- * Mes is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or (at
- * your option) any later version.
- *
- * Mes is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Mes. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#if POSIX
-#error "POSIX not supported"
-#endif
-
-#include <stdio.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <mlibc.h>
-
-int ARENA_SIZE = 100000;
-int MAX_ARENA_SIZE = 40000000;
-int GC_SAFETY = 10000;
-
-char *g_arena = 0;
-typedef int SCM;
-
-int g_debug = 0;
-int g_free = 0;
-
-SCM g_continuations = 0;
-SCM g_symbols = 0;
-SCM g_stack = 0;
-// a/env
-SCM r0 = 0;
-// param 1
-SCM r1 = 0;
-// save 2+load/dump
-SCM r2 = 0;
-// continuation
-SCM r3 = 0;
-
-enum type_t {TCHAR, TCLOSURE, TCONTINUATION, TFUNCTION, TKEYWORD, TMACRO, TNUMBER, TPAIR, TREF, TSPECIAL, TSTRING, TSYMBOL, TVALUES, TVECTOR, TBROKEN_HEART};
-
-struct scm {
- enum type_t type;
- SCM car;
- SCM cdr;
-};
-struct function {
- int (*function) (void);
- int arity;
- char *name;
-};
-
-#if __MESC__
-//FIXME
-char *foobar = 0;
-struct scm *g_cells = foobar;
-struct scm *g_news = foobar;
-#else
-struct scm *g_cells = 0;
-struct scm *g_news = 0;
-#endif
-
-struct scm scm_nil = {TSPECIAL, "()",0};
-struct scm scm_f = {TSPECIAL, "#f",0};
-struct scm scm_t = {TSPECIAL, "#t",0};
-struct scm scm_dot = {TSPECIAL, ".",0};
-struct scm scm_arrow = {TSPECIAL, "=>",0};
-struct scm scm_undefined = {TSPECIAL, "*undefined*",0};
-struct scm scm_unspecified = {TSPECIAL, "*unspecified*",0};
-struct scm scm_closure = {TSPECIAL, "*closure*",0};
-struct scm scm_circular = {TSPECIAL, "*circular*",0};
-struct scm scm_begin = {TSPECIAL, "*begin*",0};
-
-struct scm scm_symbol_dot = {TSYMBOL, "*dot*",0};
-struct scm scm_symbol_lambda = {TSYMBOL, "lambda",0};
-struct scm scm_symbol_begin = {TSYMBOL, "begin",0};
-struct scm scm_symbol_if = {TSYMBOL, "if",0};
-struct scm scm_symbol_quote = {TSYMBOL, "quote",0};
-struct scm scm_symbol_set_x = {TSYMBOL, "set!",0};
-
-struct scm scm_symbol_sc_expand = {TSYMBOL, "sc-expand",0};
-struct scm scm_symbol_macro_expand = {TSYMBOL, "macro-expand",0};
-struct scm scm_symbol_sc_expander_alist = {TSYMBOL, "*sc-expander-alist*",0};
-
-struct scm scm_symbol_call_with_values = {TSYMBOL, "call-with-values",0};
-struct scm scm_call_with_current_continuation = {TSPECIAL, "*call/cc*",0};
-struct scm scm_symbol_call_with_current_continuation = {TSYMBOL, "call-with-current-continuation",0};
-struct scm scm_symbol_current_module = {TSYMBOL, "current-module",0};
-struct scm scm_symbol_primitive_load = {TSYMBOL, "primitive-load",0};
-struct scm scm_symbol_read_input_file = {TSYMBOL, "read-input-file",0};
-struct scm scm_symbol_write = {TSYMBOL, "write",0};
-struct scm scm_symbol_display = {TSYMBOL, "display",0};
-
-struct scm scm_symbol_throw = {TSYMBOL, "throw",0};
-struct scm scm_symbol_not_a_pair = {TSYMBOL, "not-a-pair",0};
-struct scm scm_symbol_system_error = {TSYMBOL, "system-error",0};
-struct scm scm_symbol_wrong_number_of_args = {TSYMBOL, "wrong-number-of-args",0};
-struct scm scm_symbol_wrong_type_arg = {TSYMBOL, "wrong-type-arg",0};
-struct scm scm_symbol_unbound_variable = {TSYMBOL, "unbound-variable",0};
-
-struct scm scm_symbol_argv = {TSYMBOL, "%argv",0};
-struct scm scm_symbol_mes_prefix = {TSYMBOL, "%prefix",0};
-struct scm scm_symbol_mes_version = {TSYMBOL, "%version",0};
-
-struct scm scm_symbol_car = {TSYMBOL, "car",0};
-struct scm scm_symbol_cdr = {TSYMBOL, "cdr",0};
-struct scm scm_symbol_null_p = {TSYMBOL, "null?",0};
-struct scm scm_symbol_eq_p = {TSYMBOL, "eq?",0};
-struct scm scm_symbol_cons = {TSYMBOL, "cons",0};
-
-struct scm scm_vm_evlis = {TSPECIAL, "*vm-evlis*",0};
-struct scm scm_vm_evlis2 = {TSPECIAL, "*vm-evlis2*",0};
-struct scm scm_vm_evlis3 = {TSPECIAL, "*vm-evlis3*",0};
-struct scm scm_vm_apply = {TSPECIAL, "core:apply",0};
-struct scm scm_vm_apply2 = {TSPECIAL, "*vm-apply2*",0};
-struct scm scm_vm_eval = {TSPECIAL, "core:eval",0};
-
-//FIXED_PRIMITIVES
-struct scm scm_vm_eval_car = {TSPECIAL, "*vm-eval-car*",0};
-struct scm scm_vm_eval_cdr = {TSPECIAL, "*vm-eval-cdr*",0};
-struct scm scm_vm_eval_cons = {TSPECIAL, "*vm-eval-cons*",0};
-struct scm scm_vm_eval_null_p = {TSPECIAL, "*vm-eval-null-p*",0};
-
-struct scm scm_vm_eval_set_x = {TSPECIAL, "*vm-eval-set!*",0};
-struct scm scm_vm_eval_macro = {TSPECIAL, "*vm-eval-macro*",0};
-struct scm scm_vm_eval_check_func = {TSPECIAL, "*vm-eval-check-func*",0};
-struct scm scm_vm_eval2 = {TSPECIAL, "*vm-eval2*",0};
-struct scm scm_vm_macro_expand = {TSPECIAL, "core:macro-expand",0};
-struct scm scm_vm_begin = {TSPECIAL, "*vm-begin*",0};
-struct scm scm_vm_begin_read_input_file = {TSPECIAL, "*vm-begin-read-input-file*",0};
-struct scm scm_vm_begin2 = {TSPECIAL, "*vm-begin2*",0};
-struct scm scm_vm_if = {TSPECIAL, "*vm-if*",0};
-struct scm scm_vm_if_expr = {TSPECIAL, "*vm-if-expr*",0};
-struct scm scm_vm_call_with_values2 = {TSPECIAL, "*vm-call-with-values2*",0};
-struct scm scm_vm_call_with_current_continuation2 = {TSPECIAL, "*vm-call-with-current-continuation2*",0};
-struct scm scm_vm_return = {TSPECIAL, "*vm-return*",0};
-
-struct scm scm_symbol_gnuc = {TSYMBOL, "%gnuc",0};
-struct scm scm_symbol_mesc = {TSYMBOL, "%mesc",0};
-
-struct scm scm_test = {TSYMBOL, "test",0};
-
-#include "mes.mes.symbols.h"
-
-SCM tmp;
-SCM tmp_num;
-SCM tmp_num2;
-
-struct function g_functions[200];
-int g_function = 0;
-
-#include "gc.mes.h"
-#include "lib.mes.h"
-#include "math.mes.h"
-#include "mes.mes.h"
-#include "posix.mes.h"
-// #include "reader.mes.h"
-#include "vector.mes.h"
-
-#define TYPE(x) g_cells[x].type
-#define CAR(x) g_cells[x].car
-#define CDR(x) g_cells[x].cdr
-
-#define NTYPE(x) g_news[x].type
-#define NCAR(x) g_news[x].car
-#define NCDR(x) g_news[x].cdr
-
-#define LENGTH(x) g_cells[x].car
-#define REF(x) g_cells[x].car
-#define STRING(x) g_cells[x].car
-
-#define CLOSURE(x) g_cells[x].cdr
-#define CONTINUATION(x) g_cells[x].cdr
-
-#define FUNCTION(x) g_functions[g_cells[x].cdr]
-#define MACRO(x) g_cells[x].cdr
-#define VALUE(x) g_cells[x].cdr
-#define VECTOR(x) g_cells[x].cdr
-
-#define NLENGTH(x) g_news[x].car
-
-#define NVALUE(x) g_news[x].cdr
-#define NVECTOR(x) g_news[x].cdr
-
-#define MAKE_CHAR(n) make_cell_ (tmp_num_ (TCHAR), 0, tmp_num2_ (n))
-#define MAKE_CONTINUATION(n) make_cell_ (tmp_num_ (TCONTINUATION), n, g_stack)
-#define MAKE_NUMBER(n) make_cell_ (tmp_num_ (TNUMBER), 0, tmp_num2_ (n))
-#define MAKE_REF(n) make_cell_ (tmp_num_ (TREF), n, 0)
-#define MAKE_STRING(x) make_cell_ (tmp_num_ (TSTRING), x, 0)
-
-#define CAAR(x) CAR (CAR (x))
-#define CADR(x) CAR (CDR (x))
-#define CDAR(x) CDR (CAR (x))
-#define CDDR(x) CDR (CDR (x))
-#define CADAR(x) CAR (CDR (CAR (x)))
-#define CADDR(x) CAR (CDR (CDR (x)))
-#define CDADAR(x) CAR (CDR (CAR (CDR (x))))
-
-SCM
-alloc (int n)
-{
- assert (g_free + n < ARENA_SIZE);
- SCM x = g_free;
- g_free += n;
- return x;
-}
-
-SCM
-tmp_num_ (int x)
-{
- VALUE (tmp_num) = x;
- return tmp_num;
-}
-
-SCM
-tmp_num2_ (int x)
-{
- VALUE (tmp_num2) = x;
- return tmp_num2;
-}
-
-SCM
-make_cell_ (SCM type, SCM car, SCM cdr)
-{
- SCM x = alloc (1);
- assert (TYPE (type) == TNUMBER);
- TYPE (x) = VALUE (type);
- if (VALUE (type) == TCHAR || VALUE (type) == TNUMBER) {
- if (car) CAR (x) = CAR (car);
- if (cdr) CDR(x) = CDR(cdr);
- }
- else if (VALUE (type) == TFUNCTION) {
- if (car) CAR (x) = car;
- if (cdr) CDR(x) = CDR(cdr);
- }
- else {
- CAR (x) = car;
- CDR(x) = cdr;
- }
- return x;
-}
-
-SCM
-make_symbol_ (SCM s) ///((internal))
-{
- VALUE (tmp_num) = TSYMBOL;
- SCM x = make_cell_ (tmp_num, s, 0);
- g_symbols = cons (x, g_symbols);
- return x;
-}
-
-SCM
-list_of_char_equal_p (SCM a, SCM b) ///((internal))
-{
- while (a != cell_nil && b != cell_nil && VALUE (CAR (a)) == VALUE (CAR (b))) {
- assert (TYPE (CAR (a)) == TCHAR);
- assert (TYPE (CAR (b)) == TCHAR);
- a = CDR (a);
- b = CDR (b);
- }
- return (a == cell_nil && b == cell_nil) ? cell_t : cell_f;
-}
-
-SCM
-lookup_symbol_ (SCM s)
-{
- SCM x = g_symbols;
- while (x) {
- if (list_of_char_equal_p (STRING (CAR (x)), s) == cell_t) break;
- x = CDR (x);
- }
- if (x) x = CAR (x);
- if (!x) x = make_symbol_ (s);
- return x;
-}
-
-SCM
-type_ (SCM x)
-{
- return MAKE_NUMBER (TYPE (x));
-}
-
-SCM
-car_ (SCM x)
-{
- return (TYPE (x) != TCONTINUATION
- && (TYPE (CAR (x)) == TPAIR // FIXME: this is weird
- || TYPE (CAR (x)) == TREF
- || TYPE (CAR (x)) == TSPECIAL
- || TYPE (CAR (x)) == TSYMBOL
- || TYPE (CAR (x)) == TSTRING)) ? CAR (x) : MAKE_NUMBER (CAR (x));
-}
-
-SCM
-cdr_ (SCM x)
-{
- return (TYPE (CDR (x)) == TPAIR
- || TYPE (CDR (x)) == TREF
- || TYPE (CAR (x)) == TSPECIAL
- || TYPE (CDR (x)) == TSYMBOL
- || TYPE (CDR (x)) == TSTRING) ? CDR (x) : MAKE_NUMBER (CDR (x));
-}
-
-SCM
-arity_ (SCM x)
-{
- assert (TYPE (x) == TFUNCTION);
- return MAKE_NUMBER (FUNCTION (x).arity);
-}
-
-SCM
-cons (SCM x, SCM y)
-{
- VALUE (tmp_num) = TPAIR;
- return make_cell_ (tmp_num, x, y);
-}
-
-SCM
-car (SCM x)
-{
- if (TYPE (x) != TPAIR) error (cell_symbol_not_a_pair, cons (x, cell_symbol_car));
- return CAR (x);
-}
-
-SCM
-cdr (SCM x)
-{
- if (TYPE (x) != TPAIR) error (cell_symbol_not_a_pair, cons (x, cell_symbol_cdr));
- return CDR (x);
-}
-
-SCM
-list (SCM x) ///((arity . n))
-{
- return x;
-}
-
-SCM
-null_p (SCM x)
-{
- return x == cell_nil ? cell_t : cell_f;
-}
-
-SCM
-eq_p (SCM x, SCM y)
-{
- return (x == y
- || ((TYPE (x) == TKEYWORD && TYPE (y) == TKEYWORD
- && STRING (x) == STRING (y)))
- || (TYPE (x) == TCHAR && TYPE (y) == TCHAR
- && VALUE (x) == VALUE (y))
- || (TYPE (x) == TNUMBER && TYPE (y) == TNUMBER
- && VALUE (x) == VALUE (y)))
- ? cell_t : cell_f;
-}
-
-SCM
-values (SCM x) ///((arity . n))
-{
- SCM v = cons (0, x);
- TYPE (v) = TVALUES;
- return v;
-}
-
-SCM
-acons (SCM key, SCM value, SCM alist)
-{
- return cons (cons (key, value), alist);
-}
-
-SCM
-length (SCM x)
-{
- int n = 0;
- while (x != cell_nil)
- {
- n++;
- if (TYPE (x) != TPAIR) return MAKE_NUMBER (-1);
- x = CDR (x);
- }
- return MAKE_NUMBER (n);
-}
-
-SCM apply (SCM, SCM, SCM);
-
-SCM
-error (SCM key, SCM x)
-{
- SCM throw;
- if ((throw = assq_ref_env (cell_symbol_throw, r0)) != cell_undefined)
- return apply (throw, cons (key, cons (x, cell_nil)), r0);
- display_error_ (key);
- eputs (": ");
- display_error_ (x);
- eputs ("\n");
- exit (1);
-}
-
-SCM
-cstring_to_list (char const* s)
-{
- SCM p = cell_nil;
- int i = strlen (s);
- while (i--)
- p = cons (MAKE_CHAR (s[i]), p);
- return p;
-}
-
-// \f extra lib
-SCM
-assert_defined (SCM x, SCM e) ///((internal))
-{
- if (e == cell_undefined) return error (cell_symbol_unbound_variable, x);
- return e;
-}
-
-SCM
-check_formals (SCM f, SCM formals, SCM args) ///((internal))
-{
- int flen = (TYPE (formals) == TNUMBER) ? VALUE (formals) : VALUE (length (formals));
- int alen = VALUE (length (args));
- if (alen != flen && alen != -1 && flen != -1)
- {
- char *s = "apply: wrong number of arguments; expected: ";
- eputs (s);
- eputs (itoa (flen));
- eputs (", got: ");
- eputs (itoa (alen));
- eputs ("\n");
- display_error_ (f);
- SCM e = MAKE_STRING (cstring_to_list (s));
- return error (cell_symbol_wrong_number_of_args, cons (e, f));
- }
- return cell_unspecified;
-}
-
-SCM
-check_apply (SCM f, SCM e) ///((internal))
-{
- char* type = 0;
- if (f == cell_f || f == cell_t) type = "bool";
- if (f == cell_nil) type = "nil";
- if (f == cell_unspecified) type = "*unspecified*";
- if (f == cell_undefined) type = "*undefined*";
- if (TYPE (f) == TCHAR) type = "char";
- if (TYPE (f) == TNUMBER) type = "number";
- if (TYPE (f) == TSTRING) type = "string";
-
- if (type)
- {
- char *s = "cannot apply: ";
- eputs (s);
- eputs (type);
- eputs ("[");
- display_error_ (e);
- eputs ("]\n");
- SCM e = MAKE_STRING (cstring_to_list (s));
- return error (cell_symbol_wrong_type_arg, cons (e, f));
- }
- return cell_unspecified;
-}
-
-SCM
-gc_push_frame () ///((internal))
-{
- SCM frame = cons (r1, cons (r2, cons (r3, cons (r0, cell_nil))));
- g_stack = cons (frame, g_stack);
- return g_stack;
-}
-
-SCM
-append2 (SCM x, SCM y)
-{
- if (x == cell_nil) return y;
- assert (TYPE (x) == TPAIR);
- return cons (car (x), append2 (cdr (x), y));
-}
-
-SCM
-pairlis (SCM x, SCM y, SCM a)
-{
- if (x == cell_nil)
- return a;
- if (TYPE (x) != TPAIR)
- return cons (cons (x, y), a);
- return cons (cons (car (x), car (y)),
- pairlis (cdr (x), cdr (y), a));
-}
-
-SCM
-call (SCM fn, SCM x)
-{
- if ((FUNCTION (fn).arity > 0 || FUNCTION (fn).arity == -1)
- && x != cell_nil && TYPE (CAR (x)) == TVALUES)
- x = cons (CADAR (x), CDR (x));
- if ((FUNCTION (fn).arity > 1 || FUNCTION (fn).arity == -1)
- && x != cell_nil && TYPE (CDR (x)) == TPAIR && TYPE (CADR (x)) == TVALUES)
- x = cons (CAR (x), cons (CDADAR (x), CDR (x)));
- switch (FUNCTION (fn).arity)
- {
-#if __MESC__ || !_POSIX_SOURCE
- case 0: return (FUNCTION (fn).function) ();
- case 1: return ((SCM(*)(SCM))(FUNCTION (fn).function)) (CAR (x));
- case 2: return ((SCM(*)(SCM,SCM))(FUNCTION (fn).function)) (CAR (x), CADR (x));
- case 3: return ((SCM(*)(SCM,SCM,SCM))(FUNCTION (fn).function)) (CAR (x), CADR (x), CAR (CDDR (x)));
- case -1: return ((SCM(*)(SCM))(FUNCTION (fn).function)) (x);
- default: return ((SCM(*)(SCM))(FUNCTION (fn).function)) (x);
-#else
- case 0: return FUNCTION (fn).function0 ();
- case 1: return FUNCTION (fn).function1 (CAR (x));
- case 2: return FUNCTION (fn).function2 (CAR (x), CADR (x));
- case 3: return FUNCTION (fn).function3 (CAR (x), CADR (x), CAR (CDDR (x)));
- case -1: return FUNCTION (fn).functionn (x);
-#endif
- }
-
- return cell_unspecified;
-}
-
-SCM
-assq (SCM x, SCM a)
-{
- //FIXME: move into fast-non eq_p-ing assq core:assq?
- //while (a != cell_nil && x != CAAR (a)) a = CDR (a);
- while (a != cell_nil && eq_p (x, CAAR (a)) == cell_f) a = CDR (a);
- return a != cell_nil ? CAR (a) : cell_f;
-}
-
-SCM
-assq_ref_env (SCM x, SCM a)
-{
- x = assq (x, a);
- if (x == cell_f) return cell_undefined;
- return CDR (x);
-}
-
-SCM
-set_car_x (SCM x, SCM e)
-{
- assert (TYPE (x) == TPAIR);
- CAR (x) = e;
- return cell_unspecified;
-}
-
-SCM
-set_cdr_x (SCM x, SCM e)
-{
- if (TYPE (x) != TPAIR) error (cell_symbol_not_a_pair, cons (x, cell_set_cdr_x));
- CDR (x) = e;
- return cell_unspecified;
-}
-
-SCM
-set_env_x (SCM x, SCM e, SCM a)
-{
- SCM p = assert_defined (x, assq (x, a));
- if (TYPE (p) != TPAIR) error (cell_symbol_not_a_pair, cons (p, x));
- return set_cdr_x (p, e);
-}
-
-SCM
-call_lambda (SCM e, SCM x, SCM aa, SCM a) ///((internal))
-{
- SCM cl = cons (cons (cell_closure, x), x);
- r1 = e;
- r0 = cl;
- return cell_unspecified;
-}
-
-SCM
-make_closure_ (SCM args, SCM body, SCM a) ///((internal))
-{
- return make_cell_ (tmp_num_ (TCLOSURE), cell_f, cons (cons (cell_circular, a), cons (args, body)));
-}
-
-SCM
-lookup_macro_ (SCM x, SCM a) ///((internal))
-{
- if (TYPE (x) != TSYMBOL) return cell_f;
- SCM m = assq_ref_env (x, a);
- if (TYPE (m) == TMACRO) return MACRO (m);
- return cell_f;
-}
-
-SCM
-push_cc (SCM p1, SCM p2, SCM a, SCM c) ///((internal))
-{
- SCM x = r3;
- r3 = c;
- r2 = p2;
- gc_push_frame ();
- r1 = p1;
- r0 = a;
- r3 = x;
- return cell_unspecified;
-}
-
-SCM
-gc_peek_frame () ///((internal))
-{
- SCM frame = CAR (g_stack);
- r1 = CAR (frame);
- r2 = CADR (frame);
- r3 = CAR (CDDR (frame));
- r0 = CADR (CDDR (frame));
- return frame;
-}
-
-SCM
-gc_pop_frame () ///((internal))
-{
- SCM frame = gc_peek_frame (g_stack);
- g_stack = CDR (g_stack);
- return frame;
-}
-
-SCM
-eval_apply ()
-{
- eval_apply:
- gc_check ();
- switch (r3)
- {
- case cell_vm_evlis: goto evlis;
- case cell_vm_evlis2: goto evlis2;
- case cell_vm_evlis3: goto evlis3;
- case cell_vm_apply: goto apply;
- case cell_vm_apply2: goto apply2;
- case cell_vm_eval: goto eval;
-#if FIXED_PRIMITIVES
- case cell_vm_eval_car: goto eval_car;
- case cell_vm_eval_cdr: goto eval_cdr;
- case cell_vm_eval_cons: goto eval_cons;
- case cell_vm_eval_null_p: goto eval_null_p;
-#endif
- case cell_vm_eval_set_x: goto eval_set_x;
- case cell_vm_eval_macro: goto eval_macro;
- case cell_vm_eval_check_func: goto eval_check_func;
- case cell_vm_eval2: goto eval2;
- case cell_vm_macro_expand: goto macro_expand;
- case cell_vm_begin: goto begin;
- case cell_vm_begin_read_input_file: goto begin_read_input_file;
- case cell_vm_begin2: goto begin2;
- case cell_vm_if: goto vm_if;
- case cell_vm_if_expr: goto if_expr;
- case cell_vm_call_with_current_continuation2: goto call_with_current_continuation2;
- case cell_vm_call_with_values2: goto call_with_values2;
- case cell_vm_return: goto vm_return;
- case cell_unspecified: return r1;
- default:
- assert (0);
- }
-
- SCM x = cell_nil;
- evlis:
- gc_check ();
- if (r1 == cell_nil) goto vm_return;
- if (TYPE (r1) != TPAIR) goto eval;
- push_cc (CAR (r1), r1, r0, cell_vm_evlis2);
- goto eval;
- evlis2:
- push_cc (CDR (r2), r1, r0, cell_vm_evlis3);
- goto evlis;
- evlis3:
- r1 = cons (r2, r1);
- goto vm_return;
-
- apply:
- gc_check ();
- switch (TYPE (CAR (r1)))
- {
- case TFUNCTION: {
- check_formals (CAR (r1), MAKE_NUMBER (FUNCTION (CAR (r1)).arity), CDR (r1));
- r1 = call (CAR (r1), CDR (r1)); /// FIXME: move into eval_apply
- goto vm_return;
- }
- case TCLOSURE:
- {
- SCM cl = CLOSURE (CAR (r1));
- SCM formals = CADR (cl);
- SCM body = CDDR (cl);
- SCM aa = CDAR (cl);
- aa = CDR (aa);
- check_formals (CAR (r1), formals, CDR (r1));
- SCM p = pairlis (formals, CDR (r1), aa);
- call_lambda (body, p, aa, r0);
- goto begin;
- }
- case TCONTINUATION:
- {
- x = r1;
- g_stack = CONTINUATION (CAR (r1));
- gc_pop_frame ();
- r1 = CADR (x);
- goto eval_apply;
- }
- case TSPECIAL:
- {
- switch (CAR (r1))
- {
- case cell_vm_apply:
- {
- push_cc (cons (CADR (r1), CADDR (r1)), r1, r0, cell_vm_return);
- goto apply;
- }
- case cell_vm_eval:
- {
- push_cc (CADR (r1), r1, CADDR (r1), cell_vm_return);
- goto eval;
- }
- case cell_call_with_current_continuation:
- {
- r1 = CDR (r1);
- goto call_with_current_continuation;
- }
- default: check_apply (cell_f, CAR (r1));
- }
- }
- case TSYMBOL:
- {
- if (CAR (r1) == cell_symbol_call_with_values)
- {
- r1 = CDR (r1);
- goto call_with_values;
- }
- if (CAR (r1) == cell_symbol_current_module)
- {
- r1 = r0;
- goto vm_return;
- }
- break;
- }
- case TPAIR:
- {
- switch (CAAR (r1))
- {
- case cell_symbol_lambda:
- {
- SCM formals = CADR (CAR (r1));
- SCM body = CDDR (CAR (r1));
- SCM p = pairlis (formals, CDR (r1), r0);
- check_formals (r1, formals, CDR (r1));
- call_lambda (body, p, p, r0);
- goto begin;
- }
- }
- }
- }
- push_cc (CAR (r1), r1, r0, cell_vm_apply2);
- goto eval;
- apply2:
- check_apply (r1, CAR (r2));
- r1 = cons (r1, CDR (r2));
- goto apply;
-
- eval:
- gc_check ();
- switch (TYPE (r1))
- {
- case TPAIR:
- {
- switch (CAR (r1))
- {
-#if FIXED_PRIMITIVES
- case cell_symbol_car:
- {
- push_cc (CADR (r1), r1, r0, cell_vm_eval_car); goto eval;
- eval_car:
- x = r1; gc_pop_frame (); r1 = CAR (x); goto eval_apply;
- }
- case cell_symbol_cdr:
- {
- push_cc (CADR (r1), r1, r0, cell_vm_eval_cdr); goto eval;
- eval_cdr:
- x = r1; gc_pop_frame (); r1 = CDR (x); goto eval_apply;
- }
- case cell_symbol_cons: {
- push_cc (CDR (r1), r1, r0, cell_vm_eval_cons); goto evlis;
- eval_cons:
- x = r1;
- gc_pop_frame ();
- r1 = cons (CAR (x), CADR (x));
- goto eval_apply;
- }
- case cell_symbol_null_p:
- {
- push_cc (CADR (r1), r1, r0, cell_vm_eval_null_p);
- goto eval;
- eval_null_p:
- x = r1; gc_pop_frame (); r1 = null_p (x); goto eval_apply;
- }
-#endif // FIXED_PRIMITIVES
- case cell_symbol_quote:
- {
- x = r1; gc_pop_frame (); r1 = CADR (x); goto eval_apply;
- }
- case cell_symbol_begin: goto begin;
- case cell_symbol_lambda:
- {
- r1 = make_closure_ (CADR (r1), CDDR (r1), assq (cell_closure, r0));
- goto vm_return;
- }
- case cell_symbol_if: {r1=CDR (r1); goto vm_if;}
- case cell_symbol_set_x:
- {
- push_cc (CAR (CDDR (r1)), r1, r0, cell_vm_eval_set_x);
- goto eval;
- eval_set_x:
- x = r2;
- r1 = set_env_x (CADR (x), r1, r0);
- goto vm_return;
- }
- case cell_vm_macro_expand:
- {
- push_cc (CADR (r1), r1, r0, cell_vm_return);
- goto macro_expand;
- }
- default: {
- push_cc (r1, r1, r0, cell_vm_eval_macro);
- goto macro_expand;
- eval_macro:
- if (r1 != r2)
- {
- if (TYPE (r1) == TPAIR)
- {
- set_cdr_x (r2, CDR (r1));
- set_car_x (r2, CAR (r1));
- }
- goto eval;
- }
- push_cc (CAR (r1), r1, r0, cell_vm_eval_check_func); goto eval;
- eval_check_func:
- push_cc (CDR (r2), r2, r0, cell_vm_eval2); goto evlis;
- eval2:
- r1 = cons (CAR (r2), r1);
- goto apply;
- }
- }
- }
- case TSYMBOL:
- {
- r1 = assert_defined (r1, assq_ref_env (r1, r0));
- goto vm_return;
- }
- default: goto vm_return;
- }
-
- SCM macro;
- SCM expanders;
- macro_expand:
- if (TYPE (r1) == TPAIR
- && (macro = lookup_macro_ (CAR (r1), r0)) != cell_f)
- {
- r1 = cons (macro, CDR (r1));
- goto apply;
- }
- else if (TYPE (r1) == TPAIR
- && TYPE (CAR (r1)) == TSYMBOL
- && ((expanders = assq_ref_env (cell_symbol_sc_expander_alist, r0)) != cell_undefined)
- && ((macro = assq (CAR (r1), expanders)) != cell_f))
- {
- SCM sc_expand = assq_ref_env (cell_symbol_macro_expand, r0);
- if (sc_expand != cell_undefined && sc_expand != cell_f)
- {
- r1 = cons (sc_expand, cons (r1, cell_nil));
- goto apply;
- }
- }
- goto vm_return;
-
- begin:
- x = cell_unspecified;
- while (r1 != cell_nil) {
- gc_check ();
- if (TYPE (r1) == TPAIR && TYPE (CAR (r1)) == TPAIR)
- {
- if (CAAR (r1) == cell_symbol_begin)
- r1 = append2 (CDAR (r1), CDR (r1));
- else if (CAAR (r1) == cell_symbol_primitive_load)
- {
- push_cc (cons (cell_symbol_read_input_file, cell_nil), r1, r0, cell_vm_begin_read_input_file);
- goto apply;
- begin_read_input_file:
- r1 = append2 (r1, CDR (r2));
- }
- }
- if (CDR (r1) == cell_nil)
- {
- r1 = CAR (r1);
- goto eval;
- }
- push_cc (CAR (r1), r1, r0, cell_vm_begin2);
- goto eval;
- begin2:
- x = r1;
- r1 = CDR (r2);
- }
- r1 = x;
- goto vm_return;
-
- vm_if:
- push_cc (CAR (r1), r1, r0, cell_vm_if_expr);
- goto eval;
- if_expr:
- x = r1;
- r1 = r2;
- if (x != cell_f)
- {
- r1 = CADR (r1);
- goto eval;
- }
- if (CDDR (r1) != cell_nil)
- {
- r1 = CAR (CDDR (r1));
- goto eval;
- }
- r1 = cell_unspecified;
- goto vm_return;
-
- call_with_current_continuation:
- gc_push_frame ();
- x = MAKE_CONTINUATION (g_continuations++);
- gc_pop_frame ();
- push_cc (cons (CAR (r1), cons (x, cell_nil)), x, r0, cell_vm_call_with_current_continuation2);
- goto apply;
- call_with_current_continuation2:
- CONTINUATION (r2) = g_stack;
- goto vm_return;
-
- call_with_values:
- push_cc (cons (CAR (r1), cell_nil), r1, r0, cell_vm_call_with_values2);
- goto apply;
- call_with_values2:
- if (TYPE (r1) == TVALUES)
- r1 = CDR (r1);
- r1 = cons (CADR (r2), r1);
- goto apply;
-
- vm_return:
- x = r1;
- gc_pop_frame ();
- r1 = x;
- goto eval_apply;
-}
-
-SCM
-apply (SCM f, SCM x, SCM a) ///((internal))
-{
- push_cc (cons (f, x), cell_unspecified, r0, cell_unspecified);
- r3 = cell_vm_apply;
- return eval_apply ();
-}
-
-SCM
-mes_g_stack (SCM a) ///((internal))
-{
- r0 = a;
- r1 = MAKE_CHAR (0);
- r2 = MAKE_CHAR (0);
- r3 = MAKE_CHAR (0);
- g_stack = cons (cell_nil, cell_nil);
- return r0;
-}
-
-//\f Environment setup
-
-SCM
-make_tmps (struct scm* cells)
-{
- tmp = g_free++;
- cells[tmp].type = TCHAR;
- tmp_num = g_free++;
- cells[tmp_num].type = TNUMBER;
- tmp_num2 = g_free++;
- cells[tmp_num2].type = TNUMBER;
- return 0;
-}
-
-#include "posix.c"
-#include "math.c"
-#include "lib.c"
-
-//\f Jam Collector
-SCM g_symbol_max;
-
-SCM
-gc_init_cells () ///((internal))
-{
- int size = ARENA_SIZE * 12;
- size = size * 2;
-#if __GNUC__
- g_arena = (char*)malloc (size);
-#else
- char *p = 0;
- p = malloc (size);
- g_arena = p;
-#endif
- g_cells = g_arena;
- return 0;
- //g_cells = (scm *)malloc (2*ARENA_SIZE*sizeof(scm));
-
- TYPE (0) = TVECTOR;
- LENGTH (0) = 1000;
- VECTOR (0) = 0;
- g_cells++;
- TYPE (0) = TCHAR;
- VALUE (0) = 'c';
- return 0;
-}
-
-SCM
-gc_init_news () ///((internal))
-{
- eputs ("gc_init_news\n");
- ///g_news = g_cells-1 + ARENA_SIZE;
- //g_news = g_cells + ARENA_SIZE * 12 + GC_SAFETY * 6;
- char *p = g_cells;
- // g_news = g_cells;
- int halfway = ARENA_SIZE * 12;
- int safety = GC_SAFETY * 12;
- safety = safety / 2;
- halfway = halfway + safety;
- // g_news = g_news + halfway;
- p = p + halfway;
- g_news = p;
- eputs ("g_cells=");
- eputs (itoa (g_cells));
- eputs (" size=");
- eputs (itoa (halfway));
- eputs (" news=");
- eputs (itoa (g_news));
- eputs (" news - cells=");
- char * c = g_cells;
- eputs (itoa (p - c));
- eputs ("\n");
-
-
- NTYPE (0) = TVECTOR;
- NLENGTH (0) = 1000;
- NVECTOR (0) = 0;
- g_news++;
- NTYPE (0) = TCHAR;
- NVALUE (0) = 'n';
- return 0;
-}
-
-SCM
-mes_symbols () ///((internal))
-{
- gc_init_cells ();
- gc_init_news ();
-
-#include "mes.mes.symbols.i"
-
- g_symbol_max = g_free;
- make_tmps (g_cells);
-
- g_symbols = 0;
- for (int i=1; i<g_symbol_max; i++)
- g_symbols = cons (i, g_symbols);
-
- SCM a = cell_nil;
-
-#include "mes.mes.symbol-names.i"
-
- a = acons (cell_symbol_mes_version, MAKE_STRING (cstring_to_list (VERSION)), a);
- a = acons (cell_symbol_mes_prefix, MAKE_STRING (cstring_to_list (PREFIX)), a);
-
- a = acons (cell_symbol_dot, cell_dot, a);
- a = acons (cell_symbol_begin, cell_begin, a);
- a = acons (cell_symbol_call_with_values, cell_symbol_call_with_values, a);
- a = acons (cell_symbol_current_module, cell_symbol_current_module, a);
- a = acons (cell_symbol_call_with_current_continuation, cell_call_with_current_continuation, a);
- a = acons (cell_symbol_sc_expand, cell_f, a);
-
-#if __GNUC__
- a = acons (cell_symbol_gnuc, cell_t, a);
- a = acons (cell_symbol_mesc, cell_f, a);
-#else
- a = acons (cell_symbol_gnuc, cell_f, a);
- a = acons (cell_symbol_mesc, cell_t, a);
-#endif
-
- a = acons (cell_closure, a, a);
-
- return a;
-}
-
-SCM
-mes_environment () ///((internal))
-{
- SCM a = mes_symbols ();
- return mes_g_stack (a);
-}
-
-SCM
-mes_builtins (SCM a) ///((internal))
-{
-#include "mes.mes.i"
-
-// Do not sort: Order of these includes define builtins
-#include "posix.mes.i"
-#include "math.mes.i"
-#include "lib.mes.i"
-#include "vector.mes.i"
-#include "gc.mes.i"
-// #include "reader.mes.i"
-
-#include "gc.mes.environment.i"
-#include "lib.mes.environment.i"
-#include "math.mes.environment.i"
-#include "mes.mes.environment.i"
-#include "posix.mes.environment.i"
-// #include "reader.mes.environment.i"
-#include "vector.mes.environment.i"
-
- return a;
-}
-
-SCM
-bload_env (SCM a) ///((internal))
-{
- char *mo = "module/mes/read-0-32.mo";
- g_stdin = open (mo, 0);
- if (g_stdin < 0) {eputs ("no such file: ");eputs (mo);eputs ("\n");return 1;}
- assert (getchar () == 'M');
- assert (getchar () == 'E');
- assert (getchar () == 'S');
- eputs ("*GOT MES*\n");
- g_stack = getchar () << 8;
- g_stack += getchar ();
-
- char *p = (char*)g_cells;
- int c = getchar ();
- while (c != EOF)
- {
- *p++ = c;
- c = getchar ();
- }
- g_free = (p-(char*)g_cells) / sizeof (struct scm);
- gc_peek_frame ();
- g_symbols = r1;
- g_stdin = STDIN;
- r0 = mes_builtins (r0);
-
-#if __GNUC__
- set_env_x (cell_symbol_gnuc, cell_t, r0);
- set_env_x (cell_symbol_mesc, cell_f, r0);
-#else
- set_env_x (cell_symbol_gnuc, cell_f, r0);
- set_env_x (cell_symbol_mesc, cell_t, r0);
-#endif
-
- if (g_debug)
- {
- eputs ("symbols: ");
- SCM s = g_symbols;
- while (s && s != cell_nil) {
- display_error_ (CAR (s));
- eputs (" ");
- s = CDR (s);
- }
- eputs ("\n");
- eputs ("functions: ");
- eputs (itoa (g_function));
- eputs ("\n");
- for (int i = 0; i < g_function; i++)
- {
- eputs ("[");
- eputs (itoa (i));
- eputs ("]: ");
- eputs (g_functions[i].name);
- eputs ("\n");
- }
- //display_error_ (r0);
- //puts ("\n");
- }
- return r2;
-}
-
-#include "vector.c"
-#include "gc.c"
-
-int
-main (int argc, char *argv[])
-{
- char *p;
- if (p = getenv ("MES_DEBUG")) g_debug = atoi (p);
- if (g_debug) {eputs (";;; MODULEDIR=");eputs (MODULEDIR);eputs ("\n");}
- if (p = getenv ("MES_MAX_ARENA")) MAX_ARENA_SIZE = atoi (p);
- if (p = getenv ("MES_ARENA")) ARENA_SIZE = atoi (p);
- if (argc > 1 && !strcmp (argv[1], "--help")) return puts ("Usage: mes [--dump|--load] < FILE\n");
- if (argc > 1 && !strcmp (argv[1], "--version")) {puts ("Mes ");puts (VERSION);puts ("\n");return 0;};
- g_stdout = STDOUT;
- r0 = mes_environment ();
-
- SCM program = bload_env (r0);
- SCM lst = cell_nil;
- for (int i=argc-1; i>=0; i--) lst = cons (MAKE_STRING (cstring_to_list (argv[i])), lst);
- r0 = acons (cell_symbol_argv, lst, r0);
- push_cc (r2, cell_unspecified, r0, cell_unspecified);
- if (g_debug)
- {
- eputs ("program: ");
- display_error_ (r1);
- eputs ("\n");
- }
- r3 = cell_vm_begin;
- r1 = eval_apply ();
- display_error_ (r1);
- eputs ("\n");
- gc (g_stack);
- if (g_debug)
- {
- eputs ("\nstats: [");
- eputs (itoa (g_free));
- eputs ("]\n");
- }
- return 0;
-}
projects / mes.git / commitdiff