1383 lines
26 KiB
C
1383 lines
26 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of Mes.
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*
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* Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define MES_MINI 1
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#define FIXED_PRIMITIVES 0
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#if __GNUC__
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#define FIXME_NYACC 1
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#define __NYACC__ 0
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#define NYACC_CAR
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#define NYACC_CDR
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#else
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#define __NYACC__ 1
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#define NYACC_CAR nyacc_car
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#define NYACC_CDR nyacc_cdr
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#endif
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char arena[2000];
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//char buf0[400];
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int g_stdin = 0;
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#if __GNUC__
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typedef long size_t;
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void *malloc (size_t i);
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int open (char const *s, int mode);
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int read (int fd, void* buf, size_t n);
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void write (int fd, char const* s, int n);
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void
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exit (int code)
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{
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asm (
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"movl %0,%%ebx\n\t"
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"movl $1,%%eax\n\t"
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"int $0x80"
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: // no outputs "=" (r)
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: "" (code)
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||
);
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// not reached
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exit (0);
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||
}
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||
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||
char const*
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||
getenv (char const* p)
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{
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return 0;
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||
}
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||
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||
int
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read (int fd, void* buf, size_t n)
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{
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int r;
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//syscall (SYS_write, fd, s, n));
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asm (
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"movl %1,%%ebx\n\t"
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"movl %2,%%ecx\n\t"
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"movl %3,%%edx\n\t"
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"movl $0x3,%%eax\n\t"
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"int $0x80\n\t"
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"mov %%eax,%0\n\t"
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: "=r" (r)
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: "" (fd), "" (buf), "" (n)
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: "eax", "ebx", "ecx", "edx"
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);
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return r;
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}
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int
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open (char const *s, int mode)
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{
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int r;
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//syscall (SYS_open, mode));
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asm (
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"mov %1,%%ebx\n\t"
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"mov %2,%%ecx\n\t"
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"mov $0x5,%%eax\n\t"
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"int $0x80\n\t"
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"mov %%eax,%0\n\t"
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: "=r" (r)
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: "" (s), "" (mode)
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: "eax", "ebx", "ecx"
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);
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return r;
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}
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int
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getchar ()
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{
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char c;
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int r = read (g_stdin, &c, 1);
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if (r < 1) return -1;
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return c;
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}
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void
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write (int fd, char const* s, int n)
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{
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int r;
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//syscall (SYS_write, fd, s, n));
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asm (
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"mov %0,%%ebx\n\t"
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"mov %1,%%ecx\n\t"
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"mov %2,%%edx\n\t"
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"mov $0x4, %%eax\n\t"
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"int $0x80\n\t"
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: // no outputs "=" (r)
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: "" (fd), "" (s), "" (n)
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: "eax", "ebx", "ecx", "edx"
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);
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}
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int
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putchar (int c)
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{
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//write (STDOUT, s, strlen (s));
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//int i = write (STDOUT, s, strlen (s));
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write (1, (char*)&c, 1);
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return 0;
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}
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void *
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malloc (size_t size)
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{
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int *n;
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int len = size + sizeof (size);
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//n = mmap (0, len, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0 );
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*n = len;
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return (void*)(n+1);
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}
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void
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free (void *p)
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{
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int *n = (int*)p-1;
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//munmap ((void*)p, *n);
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}
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#define EOF -1
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#define STDIN 0
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#define STDOUT 1
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#define STDERR 2
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size_t
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strlen (char const* s)
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{
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int i = 0;
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||
while (s[i]) i++;
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return i;
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}
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int
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strcmp (char const* a, char const* b)
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{
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while (*a && *b && *a == *b) {a++;b++;}
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return *a - *b;
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}
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int
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puts (char const* s)
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{
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//write (STDOUT, s, strlen (s));
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//int i = write (STDOUT, s, strlen (s));
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int i = strlen (s);
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write (1, s, i);
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return 0;
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}
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int
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eputs (char const* s)
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{
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//write (STDERR, s, strlen (s));
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//int i = write (STDERR, s, strlen (s));
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int i = strlen (s);
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write (2, s, i);
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return 0;
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}
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char const*
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itoa (int x)
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{
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static char buf[10];
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char *p = buf+9;
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*p-- = 0;
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int sign = x < 0;
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if (sign)
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x = -x;
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do
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{
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*p-- = '0' + (x % 10);
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x = x / 10;
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} while (x);
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if (sign)
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*p-- = '-';
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return p+1;
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}
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#endif
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void
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assert_fail (char* s)
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{
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eputs ("assert fail:");
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#if __GNUC__
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eputs (s);
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#endif
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eputs ("\n");
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#if __GNUC__
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*((int*)0) = 0;
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#endif
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}
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#if __GNUC__
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||
#define assert(x) ((x) ? (void)0 : assert_fail ("boo:" #x))
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#else
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//#define assert(x) ((x) ? (void)0 : assert_fail ("boo:" #x))
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#define assert(x) ((x) ? (void)0 : assert_fail (0))
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#endif
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typedef int SCM;
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#if __GNUC__
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int g_debug = 0;
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||
#endif
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int g_free = 0;
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SCM g_symbols = 0;
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SCM g_stack = 0;
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// a/env
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SCM r0 = 0;
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// param 1
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SCM r1 = 0;
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// save 2+load/dump
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SCM r2 = 0;
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// continuation
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||
SCM r3 = 0;
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||
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||
#if __NYACC__ || FIXME_NYACC
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enum type_t {CHAR, CLOSURE, CONTINUATION, TFUNCTION, KEYWORD, MACRO, NUMBER, PAIR, REF, SPECIAL, TSTRING, SYMBOL, VALUES, TVECTOR, BROKEN_HEART};
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#else
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enum type_t {CHAR, CLOSURE, CONTINUATION, FUNCTION, KEYWORD, MACRO, NUMBER, PAIR, REF, SPECIAL, STRING, SYMBOL, VALUES, VECTOR, BROKEN_HEART};
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#endif
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struct scm {
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enum type_t type;
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SCM car;
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SCM cdr;
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};
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||
typedef int (*f_t) (void);
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||
struct function {
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int (*function) (void);
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||
int arity;
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||
};
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struct scm *g_cells = arena;
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//scm *g_news = 0;
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// struct scm scm_nil = {SPECIAL, "()"};
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// struct scm scm_f = {SPECIAL, "#f"};
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||
// struct scm scm_t = {SPECIAL, "#t"};
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||
// struct scm_dot = {SPECIAL, "."};
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||
// struct scm_arrow = {SPECIAL, "=>"};
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// struct scm_undefined = {SPECIAL, "*undefined*"};
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||
// struct scm_unspecified = {SPECIAL, "*unspecified*"};
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||
// struct scm_closure = {SPECIAL, "*closure*"};
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||
// struct scm_circular = {SPECIAL, "*circular*"};
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||
// struct scm_begin = {SPECIAL, "*begin*"};
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||
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||
// struct scm_vm_apply = {SPECIAL, "core:apply"};
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// struct scm_vm_apply2 = {SPECIAL, "*vm-apply2*"};
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||
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||
// struct scm_vm_eval = {SPECIAL, "core:eval"};
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||
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||
// struct scm_vm_begin = {SPECIAL, "*vm-begin*"};
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// //scm scm_vm_begin_read_input_file = {SPECIAL, "*vm-begin-read-input-file*"};
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||
// struct scm_vm_begin2 = {SPECIAL, "*vm-begin2*"};
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||
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||
// struct scm_vm_return = {SPECIAL, "*vm-return*"};
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||
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||
// //#include "mes.symbols.h"
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||
#define cell_nil 1
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#define cell_f 2
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#define cell_t 3
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#define cell_dot 4
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||
// #define cell_arrow 5
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#define cell_undefined 6
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||
#define cell_unspecified 7
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||
#define cell_closure 8
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||
#define cell_circular 9
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#define cell_begin 10
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#define cell_symbol_dot 11
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||
#define cell_symbol_lambda 12
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#define cell_symbol_begin 13
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||
#define cell_symbol_if 14
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||
#define cell_symbol_quote 15
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||
#define cell_symbol_set_x 16
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||
#define cell_vm_apply 45
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#define cell_vm_apply2 46
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||
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||
#define cell_vm_eval 47
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||
#define cell_vm_begin 56
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||
//#define cell_vm_begin_read_input_file 57
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#define cell_vm_begin2 58
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||
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||
#define cell_vm_return 63
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||
SCM tmp;
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||
SCM tmp_num;
|
||
SCM tmp_num2;
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||
|
||
int ARENA_SIZE = 200;
|
||
struct function g_functions[5];
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||
int g_function = 0;
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||
|
||
|
||
#if __GNUC__
|
||
//FIXME
|
||
SCM make_cell (SCM type, SCM car, SCM cdr);
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||
#endif
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||
struct function fun_make_cell = {&make_cell, 3};
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||
struct scm scm_make_cell = {TFUNCTION,0,0};
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//, "make-cell", 0};
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SCM cell_make_cell;
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||
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||
#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;
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||
|
||
#if __GNUC__
|
||
//FIXME
|
||
SCM car (SCM x);
|
||
#endif
|
||
struct function fun_car = {&car, 1};
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||
struct scm scm_car = {TFUNCTION,0,0};
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||
// "car", 0};
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||
SCM cell_car;
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||
|
||
#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) g_functions[g_cells[x].function]
|
||
#endif
|
||
|
||
#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_ (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
|
||
|
||
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;
|
||
}
|
||
|
||
#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 ()
|
||
{
|
||
eval_apply:
|
||
// 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:
|
||
switch (TYPE (car (r1)))
|
||
{
|
||
case TFUNCTION: {
|
||
puts ("apply.function\n");
|
||
//check_formals (car (r1), MAKE_NUMBER (FUNCTION (car (r1)).arity), cdr (r1));
|
||
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)) == VALUES)
|
||
x = cons (CADAR (x), CDR (x));
|
||
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)));
|
||
switch (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: {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 2: {return ((SCM(*)(SCM,SCM))(FUNCTION (fn).function)) (car (x), car (cdr (x)));}
|
||
case 3: {return ((SCM(*)(SCM,SCM,SCM))(FUNCTION (fn).function)) (car (x), cadr (x), car (cddr (x)));}
|
||
#if __GNUC__
|
||
// FIXME GNUC
|
||
case -1: {return ((SCM(*)(SCM))(FUNCTION (fn).function)) (x);}
|
||
#endif
|
||
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;
|
||
}
|
||
|
||
// 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);
|
||
}
|
||
|
||
// 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;
|
||
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;
|
||
|
||
// 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
|
||
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) = SYMBOL;
|
||
CAR (1) = 0x2d2d2d2d;
|
||
CDR (1) = 0x3e3e3e3e;
|
||
|
||
TYPE (9) = 0x2d2d2d2d;
|
||
CAR (9) = 0x2d2d2d2d;
|
||
CDR (9) = 0x3e3e3e3e;
|
||
|
||
// (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;
|
||
|
||
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
|
||
|
||
assert (getchar () == 'M');
|
||
assert (getchar () == 'E');
|
||
assert (getchar () == 'S');
|
||
puts (" *GOT MES*\n");
|
||
g_stack = getchar () << 8;
|
||
g_stack += getchar ();
|
||
|
||
#if __GNUC__
|
||
puts ("stack: ");
|
||
puts (itoa (g_stack));
|
||
puts ("\n");
|
||
#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);
|
||
|
||
if (g_free != 15) exit (33);
|
||
|
||
#if 0
|
||
gc_peek_frame ();
|
||
g_symbols = r1;
|
||
#else
|
||
g_symbols = 1;
|
||
#endif
|
||
g_stdin = STDIN;
|
||
r0 = mes_builtins (r0);
|
||
|
||
if (g_free != 19) exit (34);
|
||
|
||
#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 __GNUC__
|
||
puts ("g_free=");
|
||
puts (itoa(g_free));
|
||
puts ("\n");
|
||
#endif
|
||
|
||
push_cc (r2, cell_unspecified, r0, cell_unspecified);
|
||
|
||
// puts ("g_stack: ");
|
||
// display_ (g_stack);
|
||
// puts ("\n");
|
||
|
||
#if __GNUC__
|
||
|
||
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
|