--- /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/>.
+ */
+
+#define MES_MINI 1
+#define FIXED_PRIMITIVES 0
+
+#if __GNUC__
+#define FIXME_NYACC 1
+#define __NYACC__ 0
+#define NYACC_CAR
+#define NYACC_CDR
+#else
+#define __NYACC__ 1
+#define NYACC_CAR nyacc_car
+#define NYACC_CDR nyacc_cdr
+#endif
+
+char arena[2000];
+//char buf0[400];
+
+int g_stdin = 0;
+
+#if __GNUC__
+typedef long size_t;
+void *malloc (size_t i);
+int open (char const *s, int mode);
+int read (int fd, void* buf, size_t n);
+void write (int fd, char const* s, int n);
+
+void
+exit (int code)
+{
+ asm (
+ "movl %0,%%ebx\n\t"
+ "movl $1,%%eax\n\t"
+ "int $0x80"
+ : // no outputs "=" (r)
+ : "" (code)
+ );
+ // not reached
+ exit (0);
+}
+
+char const*
+getenv (char const* p)
+{
+ return 0;
+}
+
+int
+read (int fd, void* buf, size_t n)
+{
+ int r;
+ //syscall (SYS_write, fd, s, n));
+ asm (
+ "movl %1,%%ebx\n\t"
+ "movl %2,%%ecx\n\t"
+ "movl %3,%%edx\n\t"
+ "movl $0x3,%%eax\n\t"
+ "int $0x80\n\t"
+ "mov %%eax,%0\n\t"
+ : "=r" (r)
+ : "" (fd), "" (buf), "" (n)
+ : "eax", "ebx", "ecx", "edx"
+ );
+ return r;
+}
+
+int
+open (char const *s, int mode)
+{
+ int r;
+ //syscall (SYS_open, mode));
+ asm (
+ "mov %1,%%ebx\n\t"
+ "mov %2,%%ecx\n\t"
+ "mov $0x5,%%eax\n\t"
+ "int $0x80\n\t"
+ "mov %%eax,%0\n\t"
+ : "=r" (r)
+ : "" (s), "" (mode)
+ : "eax", "ebx", "ecx"
+ );
+ return r;
+}
+
+int
+getchar ()
+{
+ char c;
+ int r = read (g_stdin, &c, 1);
+ if (r < 1) return -1;
+ return c;
+}
+
+void
+write (int fd, char const* s, int n)
+{
+ int r;
+ //syscall (SYS_write, fd, s, n));
+ asm (
+ "mov %0,%%ebx\n\t"
+ "mov %1,%%ecx\n\t"
+ "mov %2,%%edx\n\t"
+
+ "mov $0x4, %%eax\n\t"
+ "int $0x80\n\t"
+ : // no outputs "=" (r)
+ : "" (fd), "" (s), "" (n)
+ : "eax", "ebx", "ecx", "edx"
+ );
+}
+
+int
+putchar (int c)
+{
+ //write (STDOUT, s, strlen (s));
+ //int i = write (STDOUT, s, strlen (s));
+ write (1, (char*)&c, 1);
+ return 0;
+}
+
+void *
+malloc (size_t size)
+{
+ int *n;
+ int len = size + sizeof (size);
+ //n = mmap (0, len, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0 );
+ *n = len;
+ return (void*)(n+1);
+}
+
+void
+free (void *p)
+{
+ int *n = (int*)p-1;
+ //munmap ((void*)p, *n);
+}
+
+#define EOF -1
+#define STDIN 0
+#define STDOUT 1
+#define STDERR 2
+
+size_t
+strlen (char const* s)
+{
+ int i = 0;
+ while (s[i]) i++;
+ return i;
+}
+
+int
+strcmp (char const* a, char const* b)
+{
+ while (*a && *b && *a == *b) {a++;b++;}
+ return *a - *b;
+}
+
+int
+puts (char const* s)
+{
+ //write (STDOUT, s, strlen (s));
+ //int i = write (STDOUT, s, strlen (s));
+ int i = strlen (s);
+ write (1, s, i);
+ return 0;
+}
+
+int
+eputs (char const* s)
+{
+ //write (STDERR, s, strlen (s));
+ //int i = write (STDERR, s, strlen (s));
+ int i = strlen (s);
+ write (2, s, i);
+ return 0;
+}
+
+char const*
+itoa (int x)
+{
+ static char buf[10];
+ char *p = buf+9;
+ *p-- = 0;
+
+ int sign = x < 0;
+ if (sign)
+ x = -x;
+
+ do
+ {
+ *p-- = '0' + (x % 10);
+ x = x / 10;
+ } while (x);
+
+ if (sign)
+ *p-- = '-';
+
+ return p+1;
+}
+#endif
+
+void
+assert_fail (char* s)
+{
+ eputs ("assert fail:");
+#if __GNUC__
+ eputs (s);
+#endif
+ eputs ("\n");
+#if __GNUC__
+ *((int*)0) = 0;
+#endif
+}
+
+#if __GNUC__
+#define assert(x) ((x) ? (void)0 : assert_fail ("boo:" #x))
+#else
+//#define assert(x) ((x) ? (void)0 : assert_fail ("boo:" #x))
+#define assert(x) ((x) ? (void)0 : assert_fail (0))
+#endif
+
+typedef int SCM;
+
+#if __GNUC__
+int g_debug = 0;
+#endif
+
+int g_free = 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;
+
+#if __NYACC__ || FIXME_NYACC
+enum type_t {CHAR, CLOSURE, CONTINUATION, TFUNCTION, KEYWORD, MACRO, NUMBER, PAIR, REF, SPECIAL, TSTRING, SYMBOL, VALUES, TVECTOR, BROKEN_HEART};
+#else
+enum type_t {CHAR, CLOSURE, CONTINUATION, FUNCTION, KEYWORD, MACRO, NUMBER, PAIR, REF, SPECIAL, STRING, SYMBOL, VALUES, VECTOR, BROKEN_HEART};
+#endif
+
+struct scm {
+ enum type_t type;
+ SCM car;
+ SCM cdr;
+};
+
+typedef int (*f_t) (void);
+struct function {
+ int (*function) (void);
+ int arity;
+};
+
+struct scm *g_cells = arena;
+
+//scm *g_news = 0;
+
+// struct scm scm_nil = {SPECIAL, "()"};
+// struct scm scm_f = {SPECIAL, "#f"};
+// struct scm scm_t = {SPECIAL, "#t"};
+// struct scm_dot = {SPECIAL, "."};
+// struct scm_arrow = {SPECIAL, "=>"};
+// struct scm_undefined = {SPECIAL, "*undefined*"};
+// struct scm_unspecified = {SPECIAL, "*unspecified*"};
+// struct scm_closure = {SPECIAL, "*closure*"};
+// struct scm_circular = {SPECIAL, "*circular*"};
+// struct scm_begin = {SPECIAL, "*begin*"};
+
+// struct scm_vm_apply = {SPECIAL, "core:apply"};
+// struct scm_vm_apply2 = {SPECIAL, "*vm-apply2*"};
+
+// struct scm_vm_eval = {SPECIAL, "core:eval"};
+
+// struct scm_vm_begin = {SPECIAL, "*vm-begin*"};
+// //scm scm_vm_begin_read_input_file = {SPECIAL, "*vm-begin-read-input-file*"};
+// struct scm_vm_begin2 = {SPECIAL, "*vm-begin2*"};
+
+// struct scm_vm_return = {SPECIAL, "*vm-return*"};
+
+// //#include "mes.symbols.h"
+
+#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 functions[2];
+int g_function = 0;
+
+
+#if __GNUC__
+//FIXME
+SCM make_cell (SCM type, SCM car, SCM cdr);
+#endif
+struct function fun_make_cell = {&make_cell, 3};
+struct scm scm_make_cell = {TFUNCTION,0,0};
+ //, "make-cell", 0};
+SCM cell_make_cell;
+
+#if __GNUC__
+//FIXME
+SCM cons (SCM x, SCM y);
+#endif
+struct function fun_cons = {&cons, 2};
+struct scm scm_cons = {TFUNCTION,0,0};
+ // "cons", 0};
+SCM cell_cons;
+
+#if __GNUC__
+//FIXME
+SCM car (SCM x);
+#endif
+struct function fun_car = {&car, 1};
+struct scm scm_car = {TFUNCTION,0,0};
+ // "car", 0};
+SCM cell_car;
+
+#if __GNUC__
+//FIXME
+SCM cdr (SCM x);
+#endif
+struct function fun_cdr = {&cdr, 1};
+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};
+// scm scm_eq_p = {TFUNCTION,0,0};// "eq?", 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
+#if __GNUC__
+//#define CLOSURE(x) g_cells[x].closure
+#endif
+#define CONTINUATION(x) g_cells[x].cdr
+#if __GNUC__
+//#define FUNCTION(x) functions[g_cells[x].function]
+#endif
+
+#define FUNCTION(x) 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_ (CHAR), 0, tmp_num2_ (n))
+//#define MAKE_CONTINUATION(n) make_cell (tmp_num_ (CONTINUATION), n, g_stack)
+#define MAKE_NUMBER(n) make_cell (tmp_num_ (NUMBER), 0, tmp_num2_ (n))
+//#define MAKE_REF(n) make_cell (tmp_num_ (REF), n, 0)
+
+
+#define CAAR(x) CAR (CAR (x))
+// #define CDAR(x) CDR (CAR (x))
+#define CADAR(x) CAR (CDR (CAR (x)))
+// #define CADDR(x) CAR (CDR (CDR (x)))
+// #define CDDDR(x) CDR (CDR (CDR (x)))
+#define CDADAR(x) CAR (CDR (CAR (CDR (x))))
+#define CADR(x) CAR (CDR (x))
+
+
+#if __NYACC__ || FIXME_NYACC
+#define MAKE_STRING(x) make_cell (tmp_num_ (TSTRING), x, 0)
+// #else
+// #define MAKE_STRING(x) make_cell (tmp_num_ (STRING), x, 0)
+#endif
+
+SCM
+alloc (int n)
+{
+#if __GNUC__
+ //FIXME GNUC
+ assert (g_free + n < ARENA_SIZE);
+#endif
+ SCM x = g_free;
+ g_free += n;
+ return x;
+}
+
+SCM
+make_cell (SCM type, SCM car, SCM cdr)
+{
+ SCM x = alloc (1);
+#if __GNUC__
+ //FIXME GNUC
+ assert (TYPE (type) == NUMBER);
+#endif
+ TYPE (x) = VALUE (type);
+ if (VALUE (type) == CHAR || VALUE (type) == NUMBER) {
+ 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)
+{
+ puts ("cons x=");
+#if __GNUC__
+ puts (itoa (x));
+#endif
+ puts ("\n");
+ VALUE (tmp_num) = PAIR;
+ return make_cell (tmp_num, x, y);
+}
+
+SCM
+car (SCM x)
+{
+ puts ("car x=");
+#if __GNUC__
+ puts (itoa (x));
+#endif
+ puts ("\n");
+#if MES_MINI
+ //Nyacc
+ //assert ("!car");
+#else
+ if (TYPE (x) != PAIR) error (cell_symbol_not_a_pair, cons (x, cell_symbol_car));
+#endif
+ return CAR (x);
+}
+
+SCM
+cdr (SCM x)
+{
+ puts ("cdr x=");
+#if __GNUC__
+ puts (itoa (x));
+#endif
+ puts ("\n");
+#if MES_MINI
+ //Nyacc
+ //assert ("!cdr");
+#else
+ if (TYPE (x) != PAIR) error (cell_symbol_not_a_pair, cons (x, cell_symbol_cdr));
+#endif
+ return CDR(x);
+}
+
+// SCM
+// eq_p (SCM x, SCM y)
+// {
+// return (x == y
+// || ((TYPE (x) == KEYWORD && TYPE (y) == KEYWORD
+// && STRING (x) == STRING (y)))
+// || (TYPE (x) == CHAR && TYPE (y) == CHAR
+// && VALUE (x) == VALUE (y))
+// || (TYPE (x) == NUMBER && TYPE (y) == NUMBER
+// && VALUE (x) == VALUE (y)))
+// ? cell_t : cell_f;
+// }
+
+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;
+#if __GNUC__
+ //FIXME GNUC
+ assert (TYPE (x) == PAIR);
+#endif
+ 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) != PAIR)
+ 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 && eq_p (x, CAAR (a)) == cell_f) a = CDR (a);
+ while (a != cell_nil && x == CAAR (a)) a = CDR (a);
+ return a != cell_nil ? car (a) : cell_f;
+}
+
+#if __GNUC__
+ //FIXME GNUC
+SCM
+assq_ref_env (SCM x, SCM a)
+{
+ x = assq (x, a);
+ if (x == cell_f) return cell_undefined;
+ return cdr (x);
+}
+#endif
+
+#if __GNUC__
+ //FIXME GNUC
+SCM
+assert_defined (SCM x, SCM e)
+{
+ if (e != cell_undefined) return e;
+ // error (cell_symbol_unbound_variable, x);
+ puts ("unbound variable");
+ exit (33);
+ return e;
+}
+#endif
+
+#if 1
+ //FIXME GNUC
+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;
+}
+#endif
+
+#if __GNUC__
+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));}
+#else
+// Weirdness: wrong function labeling
+// SCM cadr (SCM x) {
+// x = cdr (x);
+// return car (x);
+// }
+// SCM cddr (SCM x) {
+// x = cdr (x);
+// return cdr (x);
+// }
+#endif
+
+#if __GNUC__
+//FIXME
+SCM call (SCM,SCM);
+SCM gc_pop_frame ();
+#endif
+
+SCM
+eval_apply ()
+{
+ puts ("e/a: fixme\n");
+ eval_apply:
+ puts ("eval_apply\n");
+ // if (g_free + GC_SAFETY > ARENA_SIZE)
+ // gc_pop_frame (gc (gc_push_frame ()));
+
+ switch (r3)
+ {
+ case cell_vm_apply: {goto apply;}
+ case cell_unspecified: {return r1;}
+ }
+
+ SCM x = cell_nil;
+ SCM y = cell_nil;
+
+ apply:
+ puts ("apply\n");
+ switch (TYPE (car (r1)))
+ {
+ case TFUNCTION: {
+ puts ("apply.function\n");
+ y = 0x22;
+ //check_formals (car (r1), MAKE_NUMBER (FUNCTION (car (r1)).arity), cdr (r1));
+#if __GNUC__
+ r1 = call (car (r1), cdr (r1)); /// FIXME: move into eval_apply
+#else
+ //FIXME
+ x = car (r1);
+ y = cdr (r1);
+ r1 = call (x, y);
+#endif
+ puts ("after call\n");
+ y = 0x44;
+ goto vm_return;
+ }
+ }
+// #if __GNUC__
+// //FIXME
+// push_cc (car (r1), r1, r0, cell_vm_apply2);
+// #endif
+// goto eval;
+// apply2:
+// //check_apply (r1, car (r2));
+// r1 = cons (r1, cdr (r2));
+// goto apply;
+
+ eval:
+ begin:
+ begin2:
+ vm_return:
+ // FIXME
+ puts ("vm-return00\n");
+ x = r1;
+ gc_pop_frame ();
+ puts ("vm-return01\n");
+ r1 = x;
+ goto eval_apply;
+}
+
+SCM
+call (SCM fn, SCM x)
+{
+ puts ("call\n");
+#if __GNUC__
+ //fn=11
+ //function1
+ puts ("fn=");
+ puts (itoa(fn));
+ puts ("\n");
+ puts ("functiono");
+ puts (itoa(g_cells[fn].cdr));
+ puts ("\n");
+#endif
+ if (fn != 11) {
+ puts("FN != 11\n");
+ return 11;
+ }
+ if (g_cells[11].cdr != 1) {
+ puts("fn.cdr != 11\n");
+ return 11;
+ }
+
+ if ((FUNCTION (fn).arity > 0 || FUNCTION (fn).arity == -1)
+ && x != cell_nil && TYPE (CAR (x)) == VALUES)
+ x = cons (CADAR (x), CDR (x));
+ puts ("00\n");
+ if ((FUNCTION (fn).arity > 1 || FUNCTION (fn).arity == -1)
+ && x != cell_nil && TYPE (CDR (x)) == PAIR && TYPE (CADR (x)) == VALUES)
+ x = cons (CAR (x), cons (CDADAR (x), CDR (x)));
+ //struct function* f = &FUNCTION (fn);
+ puts ("01\n");
+ switch (2)///FIXME FUNCTION (fn).arity)
+ {
+ // 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);
+ case 0: {puts("02.0\n");return (FUNCTION (fn).function) ();}
+ case 1: {puts("03.1\n");return ((SCM(*)(SCM))(FUNCTION (fn).function)) (car (x));}
+#if 0
+ //__GNUC__
+ case 2: {return ((SCM(*)(SCM,SCM))(FUNCTION (fn).function)) (car (x), cadr (x));}
+#else
+ case 2: {
+ puts ("04.2\n");
+ SCM p1 = car (x);
+ SCM p2 = cdr (x);
+ p2 = car (p2);
+ //return ((SCM(*)(SCM,SCM))(FUNCTION (fn).function)) (p1, p2);
+ int (*functionx) (int,int) = (SCM(*)(SCM,SCM))FUNCTION (fn).function;
+ //return ((SCM(*)(SCM,SCM))(*FUNCTION (fn).function)) (p1, p2);
+ //return ((SCM(*)(SCM,SCM))(*functionx)) (p1, p2);
+ SCM p3;
+ //p3 = 0x44;
+ puts ("05\n");
+ return cons (p1, p2);
+ return (*functionx) (p1, p2);
+ }
+#endif
+ case 3: {puts("05.3\n");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);}
+ }
+
+ return cell_unspecified;
+}
+
+SCM
+gc_peek_frame ()
+{
+ SCM frame = car (g_stack);
+ r1 = car (frame);
+#if __GNUC__
+ r2 = cadr (frame);
+ r3 = car (cddr (frame));
+ r0 = cadr (cddr (frame));
+#else
+ r2 = cdr (frame);
+ r2 = car (r2);
+
+ r3 = cdr (frame);
+ r3 = cdr (r3);
+ r3 = car (r3);
+
+ r0 = cdr (frame);
+ r0 = cdr (r0);
+ r0 = cdr (r0);
+ r0 = cdr (r0);
+ r0 = car (r0);
+#endif
+ 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 = CHAR;
+ tmp_num = g_free++;
+ cells[tmp_num].type = NUMBER;
+ tmp_num2 = g_free++;
+ cells[tmp_num2].type = NUMBER;
+ return 0;
+}
+
+SCM
+make_symbol_ (SCM s)
+{
+ VALUE (tmp_num) = SYMBOL;
+ SCM x = make_cell (tmp_num, s, 0);
+ g_symbols = cons (x, g_symbols);
+ return x;
+}
+
+SCM
+make_symbol (SCM s)
+{
+#if MES_MINI
+ SCM x = 0;
+#else
+ SCM x = lookup_symbol_ (s);
+#endif
+ return x ? x : make_symbol_ (s);
+}
+
+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;
+}
+
+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;
+// g_cells = (scm *)malloc (2*ARENA_SIZE*sizeof(scm));
+
+// #if __NYACC__ || FIXME_NYACC
+// TYPE (0) = TVECTOR;
+// // #else
+// // TYPE (0) = VECTOR;
+// #endif
+// LENGTH (0) = 1000;
+// VECTOR (0) = 0;
+// g_cells++;
+// TYPE (0) = CHAR;
+// VALUE (0) = 'c';
+}
+
+// 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;
+
+#if __GNUC__ && 0
+ //#include "mes.symbol-names.i"
+#else
+// g_cells[cell_nil].car = cstring_to_list (scm_nil.name);
+// g_cells[cell_f].car = cstring_to_list (scm_f.name);
+// g_cells[cell_t].car = cstring_to_list (scm_t.name);
+// g_cells[cell_dot].car = cstring_to_list (scm_dot.name);
+// g_cells[cell_arrow].car = cstring_to_list (scm_arrow.name);
+// g_cells[cell_undefined].car = cstring_to_list (scm_undefined.name);
+// g_cells[cell_unspecified].car = cstring_to_list (scm_unspecified.name);
+// g_cells[cell_closure].car = cstring_to_list (scm_closure.name);
+// g_cells[cell_circular].car = cstring_to_list (scm_circular.name);
+// g_cells[cell_begin].car = cstring_to_list (scm_begin.name);
+#endif
+
+ // 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_closure, a, a);
+
+ // a = acons (cell_symbol_call_with_current_continuation, cell_call_with_current_continuation, a);
+ // a = acons (cell_symbol_sc_expand, cell_f, a);
+
+ return a;
+}
+
+SCM
+make_closure (SCM args, SCM body, SCM a)
+{
+ return make_cell (tmp_num_ (CLOSURE), 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;
+functions[g_function++] = fun_make_cell;
+cell_make_cell = g_free++;
+#if __GNUC__
+ puts ("WOOOT=");
+ puts (itoa (g_free));
+ puts ("\n");
+ //FIXME GNUC
+ g_cells[cell_make_cell] = scm_make_cell;
+#else
+g_cells[16] = scm_make_cell;
+#endif
+
+scm_cons.cdr = g_function;
+functions[g_function++] = fun_cons;
+cell_cons = g_free++;
+#if __GNUC__
+ //FIXME GNUC
+g_cells[cell_cons] = scm_cons;
+#else
+g_cells[17] = scm_cons;
+#endif
+
+scm_car.cdr = g_function;
+functions[g_function++] = fun_car;
+cell_car = g_free++;
+#if __GNUC__
+ //FIXME GNUC
+g_cells[cell_car] = scm_car;
+#endif
+
+#if __GNUC__
+ //FIXME GNUC
+scm_cdr.cdr = g_function;
+functions[g_function++] = fun_cdr;
+cell_cdr = g_free++;
+g_cells[cell_cdr] = scm_cdr;
+
+// scm_make_cell.string = cstring_to_list (scm_make_cell.name);
+// g_cells[cell_make_cell].string = MAKE_STRING (scm_make_cell.string);
+// a = acons (make_symbol (scm_make_cell.string), cell_make_cell, a);
+
+// scm_cons.string = cstring_to_list (scm_cons.name);
+// g_cells[cell_cons].string = MAKE_STRING (scm_cons.string);
+// a = acons (make_symbol (scm_cons.string), cell_cons, a);
+
+// scm_car.string = cstring_to_list (scm_car.name);
+// g_cells[cell_car].string = MAKE_STRING (scm_car.string);
+// a = acons (make_symbol (scm_car.string), cell_car, a);
+
+// scm_cdr.string = cstring_to_list (scm_cdr.name);
+// g_cells[cell_cdr].string = MAKE_STRING (scm_cdr.string);
+// a = acons (make_symbol (scm_cdr.string), cell_cdr, a);
+#endif
+#endif
+ return a;
+}
+
+SCM
+bload_env (SCM a) ///((internal))
+{
+ g_stdin = open ("module/mes/read-0.mo", 0);
+#if __GNUC__
+ //g_stdin = g_stdin ? g_stdin : fopen (PREFIX "module/mes/read-0.mo", "r");
+#endif
+ char *p = (char*)g_cells;
+#if __GNUC__
+ //FIXME GNUC
+ assert (getchar () == 'M');
+ assert (getchar () == 'E');
+ assert (getchar () == 'S');
+#else
+ getchar ();
+ getchar ();
+ getchar ();
+#endif
+ 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) = SYMBOL;
+ CAR (1) = 0x2d2d2d2d;
+ CDR (1) = 0x3e3e3e3e;
+
+ TYPE (9) = 0x2d2d2d2d;
+ CAR (9) = 0x2d2d2d2d;
+ CDR (9) = 0x3e3e3e3e;
+#if 0
+ // (A(B))
+ TYPE (10) = PAIR;
+ CAR (10) = 11;
+ CDR (10) = 12;
+
+ TYPE (11) = CHAR;
+ CAR (11) = 0x58585858;
+ CDR (11) = 89;
+
+ TYPE (12) = PAIR;
+ CAR (12) = 13;
+ CDR (12) = 1;
+
+ TYPE (13) = CHAR;
+ CAR (13) = 0x58585858;
+ CDR (13) = 90;
+
+ TYPE (14) = 0x58585858;
+ CAR (14) = 0x58585858;
+ CDR (14) = 0x58585858;
+
+ TYPE (14) = 0x58585858;
+ CAR (14) = 0x58585858;
+ CDR (14) = 0x58585858;
+#else
+ // (cons 0 1)
+ TYPE (10) = PAIR;
+ CAR (10) = 11;
+ CDR (10) = 12;
+
+ TYPE (11) = TFUNCTION;
+ CAR (11) = 0x58585858;
+ // 0 = make_cell
+ // 1 = cons
+ // 2 = car
+ CDR (11) = 1;
+
+ TYPE (12) = PAIR;
+ CAR (12) = 13;
+ //CDR (12) = 1;
+ CDR (12) = 14;
+
+ TYPE (13) = NUMBER;
+ CAR (13) = 0x58585858;
+ CDR (13) = 0;
+
+ TYPE (14) = PAIR;
+ CAR (14) = 15;
+ CDR (14) = 1;
+
+ TYPE (15) = NUMBER;
+ CAR (15) = 0x58585858;
+ CDR (15) = 1;
+
+ //g_stack@23
+ TYPE (19) = PAIR;
+ CAR (19) = 1;
+ CDR (19) = 1;
+
+ TYPE (20) = PAIR;
+ CAR (20) = 7;
+ CDR (20) = 19;
+
+ TYPE (21) = PAIR;
+ CAR (21) = 7;
+ CDR (21) = 20;
+
+ TYPE (22) = PAIR;
+ CAR (22) = 134;
+ CDR (22) = 21;
+
+ TYPE (23) = PAIR;
+ CAR (23) = 22;
+ CDR (23) = 137;
+
+#endif
+
+ return 0;
+}
+
+SCM
+display_ (SCM x)
+{
+ //puts ("<display>\n");
+ switch (TYPE (x))
+ {
+ case CHAR:
+ {
+ //puts ("<char>\n");
+ puts ("#\\");
+ putchar (VALUE (x));
+ break;
+ }
+ case TFUNCTION:
+ {
+ //puts ("<function>\n");
+ if (VALUE (x) == 0)
+ puts ("make-cell");
+ if (VALUE (x) == 1)
+ puts ("cons");
+ if (VALUE (x) == 2)
+ puts ("car");
+ if (VALUE (x) == 3)
+ puts ("cdr");
+ break;
+ }
+ case NUMBER:
+ {
+ //puts ("<number>\n");
+#if __GNUC__
+ putchar (48 + VALUE (x));
+#else
+ int i;
+ i = VALUE (x);
+ i = i + 48;
+ putchar (i);
+#endif
+ break;
+ }
+ case PAIR:
+ {
+ //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)) != PAIR)
+ puts (" . ");
+#else
+ int c;
+ c = CDR (x);
+ c = TYPE (c);
+ if (c != PAIR)
+ puts (" . ");
+#endif
+ display_ (CDR (x));
+ }
+ //if (cont != cell_f) puts (")");
+ puts (")");
+ break;
+ }
+ default:
+ {
+ //puts ("<default>\n");
+ puts ("_");
+ break;
+ }
+ }
+ return 0;
+}
+
+SCM
+simple_bload_env (SCM a) ///((internal))
+{
+ puts ("reading: ");
+ char *mo = "module/mes/hack-32.mo";
+ puts (mo);
+ puts ("\n");
+ g_stdin = open (mo, 0);
+ if (g_stdin < 0) {eputs ("no such file: module/mes/read-0-32.mo\n");return 1;}
+
+ char *p = (char*)g_cells;
+ int c;
+
+#if 0
+ //__GNUC__
+ puts ("fd: ");
+ puts (itoa (g_stdin));
+ puts ("\n");
+#endif
+
+#if 0
+ //__GNUC__
+ 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");
+#else
+ c = getchar ();
+ putchar (c);
+ if (c != 'M') exit (10);
+ c = getchar ();
+ putchar (c);
+ if (c != 'E') exit (11);
+ c = getchar ();
+ putchar (c);
+ if (c != 'S') exit (12);
+ puts (" *GOT MES*\n");
+
+ // skip stack
+ getchar ();
+ getchar ();
+#endif
+
+ c = getchar ();
+ while (c != -1)
+ {
+ *p++ = c;
+ c = getchar ();
+ putchar (c);
+ }
+
+ puts ("read done\n");
+
+ g_free = (p-(char*)g_cells) / sizeof (struct scm);
+ // gc_peek_frame ();
+ // g_symbols = r1;
+ g_symbols = 1;
+ g_stdin = STDIN;
+ r0 = mes_builtins (r0);
+
+#if __GNUC__
+ puts ("cells read: ");
+ puts (itoa (g_free));
+ puts ("\n");
+
+ puts ("symbols: ");
+ puts (itoa (g_symbols));
+ puts ("\n");
+ // display_ (g_symbols);
+ // puts ("\n");
+#endif
+
+ display_ (10);
+ puts ("\n");
+
+ fill ();
+ r2 = 10;
+
+ if (TYPE (12) != PAIR)
+ exit (33);
+
+ puts ("program[");
+#if __GNUC__
+ puts (itoa (r2));
+#endif
+ puts ("]: ");
+
+ display_ (r2);
+ //display_ (14);
+ puts ("\n");
+
+ r0 = 1;
+ //r2 = 10;
+ return r2;
+}
+
+char const*
+string_to_cstring (SCM s)
+{
+ static char buf[1024];
+ char *p = buf;
+ s = STRING(s);
+ while (s != cell_nil)
+ {
+ *p++ = VALUE (car (s));
+ s = cdr (s);
+ }
+ *p = 0;
+ return buf;
+}
+
+SCM
+stderr_ (SCM x)
+{
+ //SCM write;
+#if __NYACC__ || FIXME_NYACC
+ if (TYPE (x) == TSTRING)
+// #else
+// if (TYPE (x) == STRING)
+#endif
+ eputs (string_to_cstring (x));
+ // else if ((write = assq_ref_env (cell_symbol_write, r0)) != cell_undefined)
+ // apply (assq_ref_env (cell_symbol_display, r0), cons (x, cons (MAKE_NUMBER (2), cell_nil)), r0);
+#if __NYACC__ || FIXME_NYACC
+ else if (TYPE (x) == SPECIAL || TYPE (x) == TSTRING || TYPE (x) == SYMBOL)
+// #else
+// else if (TYPE (x) == SPECIAL || TYPE (x) == STRING || TYPE (x) == SYMBOL)
+#endif
+ eputs (string_to_cstring (x));
+ else if (TYPE (x) == NUMBER)
+ eputs (itoa (VALUE (x)));
+ else
+ eputs ("display: undefined\n");
+ return cell_unspecified;
+}
+
+int
+main (int argc, char *argv[])
+{
+ puts ("Hello mini-mes!\n");
+#if __GNUC__
+ //g_debug = getenv ("MES_DEBUG");
+#endif
+ //if (getenv ("MES_ARENA")) ARENA_SIZE = atoi (getenv ("MES_ARENA"));
+ 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 ();
+
+#if MES_MINI
+ SCM program = simple_bload_env (r0);
+#else
+ SCM program = (argc > 1 && !strcmp (argv[1], "--load"))
+ ? bload_env (r0) : load_env (r0);
+ if (argc > 1 && !strcmp (argv[1], "--dump")) return dump ();
+#endif
+
+#if 0
+ //__GNUC__
+ //FIXME
+ push_cc (r2, cell_unspecified, r0, cell_unspecified);
+ for (int x=19; x<26 ;x++)
+ {
+ puts(itoa(x));
+ puts(": type=");
+ puts(itoa(g_cells[x].type));
+ puts(" car=");
+ puts(itoa(g_cells[x].car));
+ puts(" cdr=");
+ puts(itoa(g_cells[x].cdr));
+ puts("\n");
+ }
+#else
+
+ g_stack = 23;
+ g_free = 24;
+ r1 = r2; //10: the-program
+ r2 = cell_unspecified;
+#endif
+
+#if __GNUC__
+ display_ (g_stack);
+
+ 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");
+#endif
+
+ //r3 = cell_vm_begin;
+ r3 = cell_vm_apply;
+ r1 = eval_apply ();
+ //stderr_ (r1);
+ display_ (r1);
+
+ eputs ("\n");
+#if !MES_MINI
+ gc (g_stack);
+#endif
+#if __GNUC__
+ if (g_debug)
+ {
+ eputs ("\nstats: [");
+ eputs (itoa (g_free));
+ eputs ("]\n");
+ }
+#endif
+ return 0;
+}
+
+#if __GNUC__
+void
+_start ()
+{
+ int r;
+ asm (
+ "mov %%ebp,%%eax\n\t"
+ "addl $8,%%eax\n\t"
+ "push %%eax\n\t"
+
+ "mov %%ebp,%%eax\n\t"
+ "addl $4,%%eax\n\t"
+ "movzbl (%%eax),%%eax\n\t"
+ "push %%eax\n\t"
+
+ "call main\n\t"
+ "movl %%eax,%0\n\t"
+ : "=r" (r)
+ : //no inputs "" (&main)
+ );
+ exit (r);
+}
+#endif
projects / mes.git / commitdiff