--- /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/>.
+ */
+
+int g_stdin = 0;
+typedef long size_t;
+
+#if __GNUC__
+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);
+}
+
+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;
+}
+
+size_t
+strlen (char const* s)
+{
+ int i = 0;
+ while (s[i]) i++;
+ return i;
+}
+
+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;
+}
+#endif
+
+int
+main (int argc, char *argv[])
+{
+ g_stdin = open ("mesmes", 0);
+ int c = getchar ();
+ while (c != -1) {
+ putchar (c);
+ c = getchar ();
+ }
+ return c;
+}
+
+#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
--- /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
+
+#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
+
+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:");
+ eputs (s);
+ eputs ("\n");
+ *((int*)0) = 0;
+}
+
+#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;
+SCM r0 = 0; // a/env
+SCM r1 = 0; // param 1
+SCM r2 = 0; // save 2+load/dump
+SCM r3 = 0; // continuation
+
+typedef int SCM;
+#if __NYACC__ || FIXME_NYACC
+enum type_t {CHAR, CLOSURE, CONTINUATION, FUNCTION, 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
+typedef SCM (*function0_t) (void);
+typedef SCM (*function1_t) (SCM);
+typedef SCM (*function2_t) (SCM, SCM);
+typedef SCM (*function3_t) (SCM, SCM, SCM);
+typedef SCM (*functionn_t) (SCM);
+typedef struct function_struct {
+ union {
+ function0_t function0;
+ function1_t function1;
+ function2_t function2;
+ function3_t function3;
+ functionn_t functionn;
+ } data;
+ int arity;
+} function_t;
+struct scm;
+
+typedef struct scm_struct {
+ enum type_t type;
+ union {
+ char const *name;
+ SCM string;
+ SCM car;
+ SCM ref;
+ int length;
+ } NYACC_CAR;
+ union {
+ int value;
+ int function;
+ SCM cdr;
+ SCM closure;
+ SCM continuation;
+ SCM macro;
+ SCM vector;
+ int hits;
+ } NYACC_CDR;
+} scm;
+
+char arena[200000];
+scm *g_cells = (scm*)arena;
+
+#define CAR(x) g_cells[x].car
+
+#define CDR(x) g_cells[x].cdr
+
+SCM
+car (SCM x)
+{
+#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)
+{
+#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 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));}
+
+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;
+}
+
+//\f Environment setup
+
+SCM
+mes_environment ()
+{
+ return 0;
+}
+
+SCM
+mes_builtins (SCM a)
+{
+ return a;
+}
+
+SCM
+bload_env (SCM a) ///((internal))
+{
+ puts ("bload_env\n");
+ g_stdin = open ("module/mes/read-0.mo", 0);
+ if (g_stdin < 0) {eputs ("no such file: module/mes/read-0.mo\n");return 1;}
+#if __GNUC__
+ puts ("fd: ");
+ puts (itoa (g_stdin));
+ puts ("\n");
+ //g_stdin = g_stdin ? g_stdin : fopen (PREFIX "module/mes/read-0.mo", "r");
+#endif
+ char *p = (char*)g_cells;
+
+ // int x;
+ // x = getchar ();
+ // if (x == 'M') puts ("M");
+ // x = getchar ();
+ // if (x == 'E') puts ("E");
+ // x = getchar ();
+ // if (x == 'S') puts ("S");
+
+ assert (getchar () == 'M');
+ assert (getchar () == 'E');
+ assert (getchar () == 'S');
+ puts ("GOT MES\n");
+ g_stack = getchar () << 8;
+ g_stack += getchar ();
+ int c = getchar ();
+ while (c != -1)
+ {
+ *p++ = c;
+ c = getchar ();
+ }
+ g_free = (p-(char*)g_cells) / sizeof (scm);
+ gc_peek_frame ();
+ g_symbols = r1;
+ g_stdin = STDIN;
+ r0 = mes_builtins (r0);
+
+#if __GNUC__
+ puts ("cells read: ");
+ puts (itoa (g_free));
+ puts ("\n");
+#endif
+ return r2;
+}
+
+int
+main (int argc, char *argv[])
+{
+#if __GNUC__
+ g_debug = (int)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\n");
+ if (argc > 1 && !strcmp (argv[1], "--version")) {eputs ("Mes ");eputs (VERSION);return eputs ("\n");};
+
+ if (argc > 1 && !strcmp (argv[1], "--help")) return eputs ("Usage: mes [--dump|--load] < FILE\n");
+
+
+#if __GNUC__
+ g_stdin = STDIN;
+ r0 = mes_environment ();
+#endif
+
+#if MES_MINI
+ puts ("Hello tiny-mes!\n");
+ SCM program = 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 ();
+
+ push_cc (r2, cell_unspecified, r0, cell_unspecified);
+ r3 = cell_vm_begin;
+ r1 = eval_apply ();
+ stderr_ (r1);
+
+ eputs ("\n");
+ 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