c83ef66265
* scaffold/t.c: New file. * GNUmakefile (mescc-check, t-check): New targets. * module/language/c99/compiler.mes (write-any): Catch weirdness. (make): Add <function> slot. (.function): New accessor. (clone): Handle it. (function->info): Set it. (ast->info): Make tests generic in if, for, while. Add goto, label, !, ==, !=, -, &&. * module/mes/elf-util.mes (lambda/label->list): New function. (text->list): Use it. (functions->text, function-prefix): New function. (function-offset): Use it. (label-offset): New function. * module/mes/elf-util.scm (mes): Export them. * module/mes/elf.mes (make-elf): Use text->list. * module/mes/libc-i386.mes (eputs, puts): Remove. (i386:byte-base-sub): Rename from sub-byte-base. (i386:byte-jump-z): Rename from i386:Xjump-byte-z. (i386:byte-mem->accu): Rename from i386:Xmem-byte->accu. (i386:byte-mem->base): Rename from i386:Xmem-byte->base. (i386:accu->local, i386:accu-non-zero?, i386:accu-zero?, i386:base-sub, i386:byte-sub-base, i386:jump-c, i386:jump-cz, i386:jump-nc, i386:jump-ncz, i386:byte-mem->base, i386:sub-base, i386:test-accu, i386:test-base, i386:test-jump-z, i386:value->base, i386:xor-zf): New functions.
204 lines
3.5 KiB
C
204 lines
3.5 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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#if __GNUC__
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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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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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#define STDOUT 1
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typedef long size_t;
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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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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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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 test ();
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#endif
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int
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main (int argc, char *argv[])
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{
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puts ("t.c\n");
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return test ();
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}
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int
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test ()
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{
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int f = 0;
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int t = 1;
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int one = 1;
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puts ("t: if (0)\n");
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if (0) return 1;
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puts ("t: if (f)\n");
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if (f) return 1;
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puts ("t: if (one > 1)\n");
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if (one > 1) return 1;
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puts ("t: if (one < 0)\n");
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if (one < 0) return 1;
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puts ("t: stlrlen (\"\")\n");
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if (strlen ("")) return 1;
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puts ("t: if (!1)\n");
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if (!1) return 1;
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puts ("t: if (one == 0)\n");
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if (one == 0) return 1;
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puts ("t: if (f != 0)\n");
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if (one != 1) return 1;
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puts ("t: if (1 && 0)\n");
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if (1 && 0) return 1;
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puts ("t: if (1)\n");
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if (1) goto ok0;
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return 1;
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ok0:
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puts ("t: if (t)\n");
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if (t) goto ok1;
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return 1;
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ok1:
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puts ("t: if (one > 0)\n");
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if (one > 0) goto ok2;
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return 1;
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ok2:
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puts ("t: if (one < 2)\n");
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if (one < 2) goto ok3;
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return 1;
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ok3:
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puts ("t: if (strlen (\".\"))\n");
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if (strlen (".")) goto ok4;
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return 1;
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ok4:
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puts ("t: if (!0)\n");
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if (!0) goto ok5;
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return 1;
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ok5:
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puts ("t: if (one == 1)\n");
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if (one == 1) goto ok6;
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return 1;
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ok6:
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puts ("t: if (one != 0)\n");
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if (one != 0) goto ok7;
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return 1;
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ok7:
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puts ("t: if (1 && !0)\n");
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if (1 && !0) goto ok8;
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return 1;
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ok8:
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puts ("t: for (i=0; i<4; ++i)\n");
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int i;
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for (i=0; i<4; ++i);
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if (i != 4) return i;
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return 0;
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}
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#if __GNUC__
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void
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_start ()
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{
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// int r=main ();
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// exit (r);
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int r;
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asm (
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"mov %%ebp,%%eax\n\t"
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"addl $8,%%eax\n\t"
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"push %%eax\n\t"
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"mov %%ebp,%%eax\n\t"
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"addl $4,%%eax\n\t"
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"movzbl (%%eax),%%eax\n\t"
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"push %%eax\n\t"
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"call main\n\t"
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"movl %%eax,%0\n\t"
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: "=r" (r)
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: //no inputs "" (&main)
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);
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exit (r);
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}
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#endif
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