artemist/mes
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

mescc: Refactor libc.

Browse source 
* GNUmakefile (mini-mes): Add include.
* mlibc.c: New file: libc bits for GNUC -nostdlib.
* mstart.c: New file: _start for GNUC -nostdlib.
* scaffold/cons-mes.c: Remove GNUC libc bits.
* scaffold/m.c: Likewise.
* scaffold/mini-mes.c: Likewise.
* scaffold/t.c: Likewise.
* scaffold/tiny-mes.c: Litkewise.
* module/language/c99/compiler.mes (libc, i386:libc): Remove.
* module/language/c99/compiler.scm
* module/mes/libc-i386.mes: Remove assembly bits.
  (_start): New function.
* module/mes/libc-i386.scm: Export it, remove assembly exports.
* module/mes/as-i386.mes: New file: assembly bits from libc-i386.mes.
* module/mes/as-i386.scm: New file: export them.
* module/mes/libc.mes (libc,_start): New functions from compiler.mes.
* module/mes/libc.scm: Export them.
This commit is contained in:
Jan Nieuwenhuizen 2017-04-02 12:29:09 +02:00
parent 124352e087
commit 4e12e14b85
19 changed files with 1201 additions and 1970 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
GNUmakefile
View file

@ -120,38 +120,38 @@ mini-mes: mini-mes.h mini-mes.i mini-mes.environment.i mini-mes.symbols.i
mini-mes: GNUmakefile mini-mes: GNUmakefile
mini-mes: doc/examples/mini-mes.c mini-mes: doc/examples/mini-mes.c
rm -f $@ rm -f $@
gcc -nostdlib --std=gnu99 -m32 -g -I. -o $@ '-DVERSION="0.4"' $< gcc -nostdlib -I. --std=gnu99 -m32 -g -I. -o $@ '-DVERSION="0.4"' $<
chmod +x $@ chmod +x $@
cons-mes: scaffold/cons-mes.c GNUmakefile cons-mes: scaffold/cons-mes.c GNUmakefile
rm -f $@ rm -f $@
gcc -nostdlib --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $< gcc -nostdlib -I. --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $<
chmod +x $@ chmod +x $@
tiny-mes: scaffold/tiny-mes.c GNUmakefile tiny-mes: scaffold/tiny-mes.c GNUmakefile
rm -f $@ rm -f $@
gcc -nostdlib --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $< gcc -nostdlib -I. --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $<
chmod +x $@ chmod +x $@
m: scaffold/m.c GNUmakefile m: scaffold/m.c GNUmakefile
rm -f $@ rm -f $@
gcc -nostdlib --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $< gcc -nostdlib -I. --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $<
# gcc --std=gnu99 -g -o $@ '-DVERSION="0.4"' $< # gcc --std=gnu99 -g -o $@ '-DVERSION="0.4"' $<
chmod +x $@ chmod +x $@
micro-mes: scaffold/micro-mes.c GNUmakefile micro-mes: scaffold/micro-mes.c GNUmakefile
rm -f $@ rm -f $@
gcc -nostdlib --std=gnu99 -m32 -o $@ '-DVERSION="0.4"' $< gcc -nostdlib -I. --std=gnu99 -m32 -o $@ '-DVERSION="0.4"' $<
chmod +x $@ chmod +x $@
main: doc/examples/main.c GNUmakefile main: doc/examples/main.c GNUmakefile
rm -f $@ rm -f $@
gcc -nostdlib --std=gnu99 -m32 -o $@ '-DVERSION="0.4"' $< gcc -nostdlib -I. --std=gnu99 -m32 -o $@ '-DVERSION="0.4"' $<
chmod +x $@ chmod +x $@
t: scaffold/t.c GNUmakefile t: scaffold/t.c GNUmakefile
rm -f $@ rm -f $@
gcc -nostdlib --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $< gcc -nostdlib -I. --std=gnu99 -m32 -g -o $@ '-DVERSION="0.4"' $<
chmod +x $@ chmod +x $@
MAIN_C:=doc/examples/main.c MAIN_C:=doc/examples/main.c

84
doc/examples/main.c
View file

@ -19,65 +19,7 @@
*/ */
#if __GNUC__ #if __GNUC__
void #include "mlibc.c"
exit (int code)
{
asm (
"movl %0,%%ebx\n\t"
"movl $1,%%eax\n\t"
"int $0x80"
: // no outputs "=" (r)
: "" (code)
);
// not reached
exit (0);
}
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"
);
}
#define STDOUT 1
typedef long size_t;
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;
}
int
strcmp (char const* a, char const* b)
{
while (*a && *b && *a == *b) {a++;b++;}
return *a - *b;
}
#endif #endif
int int
@ -90,27 +32,5 @@ main (int argc, char *argv[])
} }
#if __GNUC__ #if __GNUC__
void #include "mstart.c"
_start ()
{
// int r=main ();
// exit (r);
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 #endif

230
mlibc.c Normal file
View file

@ -0,0 +1,230 @@
/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of Mes.
*
* Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* Mes is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#if __GNUC__
int g_stdin = 0;
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 puts (char const*);
char const* itoa (int);
int
getchar ()
{
char c;
int r = read (g_stdin, &c, 1);
if (r < 1) return -1;
int i = c;
if (i < 0) i += 256;
return i;
}
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
eputs (char const* s)
{
//int i = write (STDERR, s, strlen (s));
int i = strlen (s);
write (2, s, i);
return 0;
}
int
fputs (char const* s, int fd)
{
//int i = write (fd, s, strlen (s));
int i = strlen (s);
write (fd, s, i);
return 0;
}
int
puts (char const* s)
{
//int i = write (STDOUT, s, strlen (s));
int i = strlen (s);
write (1, s, i);
return 0;
}
char itoa_buf[10];
char const*
itoa (int x)
{
//static char itoa_buf[10];
//char *p = buf+9;
char *p = itoa_buf;
p += 9;
*p-- = 0;
//int sign = x < 0;
int sign;
sign = x < 0;
if (sign)
x = -x;
do
{
*p-- = '0' + (x % 10);
x = x / 10;
} while (x);
if (sign)
*p-- = '-';
return p+1;
}
void
assert_fail (char* s)
{
eputs ("assert fail: ");
eputs (s);
eputs ("\n");
*((int*)0) = 0;
}
#define assert(x) ((x) ? (void)0 : assert_fail (#x))
#endif

16
module/language/c/compiler.mes
View file

@ -57,22 +57,6 @@
(define (.name o) (define (.name o)
(cadr o)) (cadr o))
;; (define (.statement o)
;; (match o
;; (('function name signature statement) statement)
;; (_ #f)))
;; (define (statement->data o)
;; (match o
;; (('call 'puts ('arguments string)) (string->list string))
;; (_ '())))
;; (define (statement->text o)
;; (match o
;; (('call 'puts ('arguments string)) (list (lambda (data) (i386:puts data (string-length string)))))
;; (('return code) (list (lambda (data) (i386:exit code))))
;; (_ '())))
(define (.statement o) (define (.statement o)
(and (pair? o) (and (pair? o)
(eq? (car o) 'function) (eq? (car o) 'function)

189
module/language/c99/compiler.mes
View file

@ -25,8 +25,6 @@
;;; Code: ;;; Code:
;;(define barf #f)
(cond-expand (cond-expand
(guile-2 (guile-2
(set-port-encoding! (current-output-port) "ISO-8859-1")) (set-port-encoding! (current-output-port) "ISO-8859-1"))
@ -36,7 +34,8 @@
(mes-use-module (mes elf-util)) (mes-use-module (mes elf-util))
(mes-use-module (mes pmatch)) (mes-use-module (mes pmatch))
(mes-use-module (mes elf)) (mes-use-module (mes elf))
(mes-use-module (mes libc-i386)) (mes-use-module (mes as-i386))
(mes-use-module (mes libc))
(mes-use-module (mes optargs)))) (mes-use-module (mes optargs))))
(define (logf port string . rest) (define (logf port string . rest)
@ -363,8 +362,20 @@ _)))))
(abs-declr (pointer))) (abs-declr (pointer)))
,cast) ,cast)
((expr->arg info) cast)) ((expr->arg info) cast))
(_ (_
(format (current-error-port) "SKIP: expr->arg=~s\n" o) ;; (stderr "catch: expr->arg=~s\n" o)
(let* ((info ((expr->accu info) o))
(text (.text info)))
(clone info
#:text (append text
(list (lambda (f g ta t d)
(append
(i386:accu-zero?)
(i386:push-accu))))))))
(_
(stderr "SKIP: expr->arg=~s\n" o)
barf barf
0))))) 0)))))
@ -767,20 +778,33 @@ _)))))
(accu ((expr->accu empty) a)) (accu ((expr->accu empty) a))
(base ((expr->base empty) b))) (base ((expr->base empty) b)))
(clone info #:text (clone info #:text
(append text (append text ;;FIXME:empty
(.text accu) (.text accu)
(.text base) (.text base)
(list (lambda (f g ta t d) (list (lambda (f g ta t d)
(i386:accu%base))))))) (i386:accu%base)))))))
;; FIXME: c/p ast->info
((eq ,a ,b)
(let* ((base ((expr->base info) a))
(empty (clone base #:text '()))
(accu ((expr->accu empty) b)))
(clone info #:text
(append (.text base)
(list (lambda (f g ta t d)
(i386:push-base)))
(.text accu)
(i386:pop-accu)
(list (lambda (f g ta t d)
(i386:sub-base)))))))
;; FIXME: c/p ast->info ;; FIXME: c/p ast->info
((lt ,a ,b) ((lt ,a ,b)
(let* ((base ((expr->base info) a)) (let* ((base ((expr->base info) a))
(empty (clone base #:text '())) (empty (clone base #:text '()))
(accu ((expr->accu empty) b))) (accu ((expr->accu empty) b)))
(clone info #:text (clone info #:text
(append text (append (.text base)
(.text base)
(.text accu) (.text accu)
(list (lambda (f g ta t d) (list (lambda (f g ta t d)
(i386:base-sub))))))) (i386:base-sub)))))))
@ -1187,7 +1211,7 @@ _)))))
(locals (cons (make-local name type pointer id) locals))) (locals (cons (make-local name type pointer id) locals)))
locals)) locals))
;;(stderr "\n ast->info=~s\n" o) ;; (stderr "\n ast->info=~s\n" o)
;; (stderr " globals[~a=>~a]: ~a\n" (length globals) (length (append-map cdr globals)) (map (lambda (s) (if (string? s) (string-delete #\newline s))) (map car globals))) ;; (stderr " globals[~a=>~a]: ~a\n" (length globals) (length (append-map cdr globals)) (map (lambda (s) (if (string? s) (string-delete #\newline s))) (map car globals)))
;; (stderr " text=~a\n" text) ;; (stderr " text=~a\n" text)
;; (stderr " info=~a\n" info) ;; (stderr " info=~a\n" info)
@ -2325,155 +2349,6 @@ _)))))
(if (null? elements) info (if (null? elements) info
(loop (cdr elements) ((ast->info info) (car elements))))))) (loop (cdr elements) ((ast->info info) (car elements)))))))
(define _start
(let* ((argc-argv
(string-append ".byte"
" 0x89 0xe8" ; mov %ebp,%eax
" 0x83 0xc0 0x08" ; add $0x8,%eax
" 0x50" ; push %eax
" 0x89 0xe8" ; mov %ebp,%eax
" 0x83 0xc0 0x04" ; add $0x4,%eax
" 0x0f 0xb6 0x00" ; movzbl (%eax),%eax
" 0x50" ; push %eax
))
(ast (with-input-from-string
(string-append "int _start () {int i;asm(\"" argc-argv "\");i=main ();exit (i);}")
parse-c99)))
ast))
(define strlen
(let* ((ast (with-input-from-string
"
int
strlen (char const* s)
{
int i = 0;
while (s[i]) i++;
return i;
}
"
;;paredit:"
parse-c99)))
ast))
(define getchar
(let* ((ast (with-input-from-string
"
int g_stdin;
int
getchar ()
{
char c;
int r = read (g_stdin, &c, 1);
//int r = read (0, &c, 1);
if (r < 1) return -1;
return c;
}
"
;;paredit:"
parse-c99)))
ast))
(define putchar
(let* ((ast (with-input-from-string
"
int
putchar (int c)
{
//write (STDOUT, s, strlen (s));
//int i = write (STDOUT, s, strlen (s));
write (1, (char*)&c, 1);
return 0;
}
"
;;paredit:"
parse-c99)))
ast))
(define eputs
(let* ((ast (with-input-from-string
"
int
eputs (char const* s)
{
//write (STDERR, s, strlen (s));
//write (2, s, strlen (s));
int i = strlen (s);
write (2, s, i);
return 0;
}
"
;;paredit:"
parse-c99)))
ast))
(define fputs
(let* ((ast (with-input-from-string
"
int
fputs (char const* s, int fd)
{
int i = strlen (s);
write (fd, s, i);
return 0;
}
"
;;paredit:"
parse-c99)))
ast))
(define puts
(let* ((ast (with-input-from-string
"
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;
}
"
;;paredit:"
parse-c99)))
ast))
(define strcmp
(let* ((ast (with-input-from-string
"
int
strcmp (char const* a, char const* b)
{
while (*a && *b && *a == *b)
{
a++;b++;
}
return *a - *b;
}
"
;;paredit:"
parse-c99)))
ast))
(define i386:libc
(list
(cons "exit" (list i386:exit))
(cons "open" (list i386:open))
(cons "read" (list i386:read))
(cons "write" (list i386:write))))
(define libc
(list
strlen
getchar
putchar
eputs
fputs
puts
strcmp))
(define (compile) (define (compile)
(let* ((ast (mescc)) (let* ((ast (mescc))
(info (make <info> (info (make <info>

2
module/language/c99/compiler.scm
View file

@ -29,7 +29,9 @@
#:use-module (ice-9 pretty-print) #:use-module (ice-9 pretty-print)
#:use-module (mes elf) #:use-module (mes elf)
#:use-module (mes elf-util) #:use-module (mes elf-util)
#:use-module (mes as-i386)
#:use-module (mes libc-i386) #:use-module (mes libc-i386)
#:use-module (mes libc)
#:use-module (nyacc lang c99 parser) #:use-module (nyacc lang c99 parser)
#:export (compile)) #:export (compile))

418
module/mes/as-i386.mes Normal file
View file

@ -0,0 +1,418 @@
;;; -*-scheme-*-
;;; 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/>.
;;; Commentary:
;;; libc-i386.mes defines i386 assembly
;;; Code:
(cond-expand
(guile-2)
(guile)
(mes
(mes-use-module (mes elf))))
(define (i386:function-preamble)
'(#x55 ; push %ebp
#x89 #xe5)) ; mov %esp,%ebp
;; (define (i386:function-locals)
;; '(#x83 #xec #x20)) ; sub $0x10,%esp -- 8 local vars
(define (i386:function-locals)
'(#x83 #xec #x40)) ; sub $0x10,%esp -- 16 local vars
(define (i386:push-global-address o)
(or o push-global-address)
`(#x68 ,@(int->bv32 o))) ; push $0x<o>
(define (i386:push-global o)
(or o push-global)
`(#xa1 ,@(int->bv32 o) ; mov 0x804a000,%eax
#x50)) ; push %eax
(define (i386:push-local n)
(or n push-local)
`(#xff #x75 ,(- 0 (* 4 n)))) ; pushl 0x<n>(%ebp)
(define (i386:push-local-address n)
(or n push-local-address)
`(#x8d #x45 ,(- 0 (* 4 n)) ; lea 0x<n>(%ebp),%eax
#x50)) ; push %eax
(define (i386:push-local-de-ref n)
(or n push-local-de-ref)
`(#x8b #x45 ,(- 0 (* 4 n)) ; mov -0x<n>(%ebp),%eax
#x0f #xb6 #x00 ; movzbl (%eax),%eax
;;#x0f #xbe #xc0 ; movsbl %al,%eax ***FIXME BYTE****
#x50)) ; push %eax
(define (i386:pop-accu)
'(#x58)) ; pop %eax
(define (i386:push-accu)
'(#x50)) ; push %eax
(define (i386:pop-base)
'(#x5a)) ; pop %eax
(define (i386:push-base)
'(#x52)) ; push %eax
(define (i386:ret)
'(#xc9 ; leave
#xc3)) ; ret
(define (i386:accu->base)
'(#x89 #xc2)) ; mov %eax,%edx
(define (i386:accu->base-address)
'(#x89 #x02)) ; mov %eax,%(edx)
(define (i386:byte-accu->base-address)
'(#x88 #x02)) ; mov %al,%(edx)
(define (i386:accu->base-address+n n)
(or n accu->base-address+n)
`(#x89 #x42 ,n)) ; mov %eax,$0x<n>%(edx)
(define (i386:accu->local n)
(or n accu->local)
`(#x89 #x45 ,(- 0 (* 4 n)))) ; mov %eax,-<0xn>(%ebp)
(define (i386:base->local n)
(or n base->local)
`(#x89 #x55 ,(- 0 (* 4 n)))) ; mov %edx,-<0xn>(%ebp)
(define (i386:base->global n)
(or n base->global)
`(#x89 #x15 ,@(int->bv32 n))) ; mov %edx,0x0
(define (i386:accu->global n)
(or n accu->global)
`(#xa3 ,@(int->bv32 n))) ; mov %eax,0x0
(define (i386:accu->global-address n)
(or n accu->global-address)
`(#x8b #x15 ,@(int->bv32 n) ; mov 0x<n>,%edx
#x89 #x02 )) ; mov %eax,(%edx)
(define (i386:accu-zero?)
'(#x85 #xc0)) ; cmpl %eax,%eax
(define (i386:accu-non-zero?)
(append '(#x85 #xc0) ; cmpl %eax,%eax
(i386:xor-zf)))
(define (i386:accu-shl n)
(or n accu:shl n)
`(#xc1 #xe0 ,n)) ; shl $0x8,%eax
(define (i386:accu+accu)
'(#x01 #xc0)) ; add %eax,%eax
(define (i386:accu+base)
`(#x01 #xd0)) ; add %edx,%eax
(define (i386:accu+value v)
(or v accu+value)
`(#x05 ,@(int->bv32 v))) ; add %eax,%eax
(define (i386:accu-base)
`(#x29 #xd0)) ; sub %edx,%eax
(define (i386:accu/base)
'(#x86 #xd3 ; mov %edx,%ebx
#x31 #xd2 ; xor %edx,%edx
#xf7 #xf3)) ; div %ebx
(define (i386:accu%base)
'(#x86 #xd3 ; mov %edx,%ebx
#x31 #xd2 ; xor %edx,%edx
#xf7 #xf3 ; div %ebx
#x89 #xd0)) ; mov %edx,%eax
(define (i386:base->accu)
'(#x89 #xd0)) ; mov %edx,%eax
(define (i386:local->accu n)
(or n local->accu)
`(#x8b #x45 ,(- 0 (* 4 n)))) ; mov -<0xn>(%ebp),%eax
(define (i386:local-address->accu n)
(or n ladd)
`(#x8d #x45 ,(- 0 (* 4 n)))) ; lea 0x<n>(%ebp),%eax
(define (i386:local-ptr->accu n)
(or n local-ptr->accu)
`(#x89 #xe8 ; mov %ebp,%eax
#x83 #xc0 ,(- 0 (* 4 n)))) ; add $0x<n>,%eax
(define (i386:byte-local->accu n)
(or n byte-local->accu)
`(#x0f #xb6 #x45 ,(- 0 (* 4 n)))) ; movzbl 0x<n>(%ebp),%eax
(define (i386:local->base n)
(or n local->base)
`(#x8b #x55 ,(- 0 (* 4 n)))) ; mov -<0xn>(%ebp),%edx
(define (i386:local-address->base n) ;; DE-REF
(or n local-address->base)
`(#x8d #x55 ,(- 0 (* 4 n)))) ; lea 0x<n>(%ebp),%edx
(define (i386:local-ptr->base n)
(or n local-ptr->base)
`(#x89 #xea ; mov %ebp,%edx
#x83 #xc2 ,(- 0 (* 4 n)))) ; add $0x<n>,%edx
(define (i386:global->base n)
(or n global->base)
`(#xba ,@(int->bv32 n))) ; mov $<n>,%edx
(define (i386:global-address->accu n)
(or n global-address->accu)
`(#xa1 ,@(int->bv32 n))) ; mov 0x<n>,%eax
(define (i386:global-address->base n)
(or n global-address->base)
`(#x8b #x15 ,@(int->bv32 n))) ; mov 0x<n>,%edx
(define (i386:byte-base-mem->accu)
'(#x01 #xd0 ; add %edx,%eax
#x0f #xb6 #x00)) ; movzbl (%eax),%eax
(define (i386:byte-mem->accu)
'(#x0f #xb6 #x00)) ; movzbl (%eax),%eax
(define (i386:byte-mem->base)
'(#x0f #xb6 #x10)) ; movzbl (%eax),%edx
(define (i386:base-mem->accu)
'(#x01 #xd0 ; add %edx,%eax
#x8b #x00)) ; mov (%eax),%eax
(define (i386:mem->accu)
'(#x8b #x00)) ; mov (%eax),%eax
(define (i386:mem+n->accu n)
`(#x8b #x40 ,n)) ; mov 0x<n>(%eax),%eax
(define (i386:base-mem+n->accu n)
(or n base-mem+n->accu)
`(#x01 #xd0 ; add %edx,%eax
#x8b #x40 ,n)) ; mov <n>(%eax),%eax
(define (i386:value->accu v)
(or v urg:value->accu)
`(#xb8 ,@(int->bv32 v))) ; mov $<v>,%eax
(define (i386:value->accu-address v)
`(#xc7 #x00 ,@(int->bv32 v))) ; movl $0x<v>,(%eax)
(define (i386:value->accu-address+n n v)
(or v urg:value->accu-address+n)
`(#xc7 #x40 ,n ,@(int->bv32 v))) ; movl $<v>,0x<n>(%eax)
(define (i386:base->accu-address)
'(#x89 #x10)) ; mov %edx,(%eax)
(define (i386:base-address->accu-address)
'(#x8b #x0a ; mov (%edx),%ecx
#x89 #x08)) ; mov %ecx,(%eax)
(define (i386:accu+n n)
`(#x83 #xc0 ,n)) ; add $0x00,%eax
(define (i386:base+n n)
`(#x83 #xc2 ,n)) ; add $0x00,%edx
(define (i386:byte-base->accu-address)
'(#x88 #x10)) ; mov %dl,(%eax)
(define (i386:byte-base->accu-address+n n)
(or n byte-base->accu-address+n)
`(#x88 #x50 ,n)) ; mov %dl,0x<n>(%eax)
(define (i386:value->base v)
(or v urg:value->base)
`(#xba ,@(int->bv32 v))) ; mov $<v>,%edx
(define (i386:local-add n v)
(or n urg:local-add)
`(#x83 #x45 ,(- 0 (* 4 n)) ,v)) ; addl $<v>,0x<n>(%ebp)
(define (i386:global-add n v)
(or n urg:global-add)
`(#x83 #x05 ,@(int->bv32 n) ,v)) ; addl $<v>,0x<n>
(define (i386:global->accu o)
(or o urg:global->accu)
`(#xb8 ,@(int->bv32 o))) ; mov $<>,%eax
(define (i386:value->global n v)
(or n value->global)
`(#xc7 #x05 ,@(int->bv32 n) ; movl $<v>,(<n>)
,@(int->bv32 v)))
(define (i386:value->local n v)
(or n value->local)
`(#xc7 #x45 ,(- 0 (* 4 n)) ; movl $<v>,0x<n>(%ebp)
,@(int->bv32 v)))
(define (i386:local-test n v)
(or n local-test)
`(#x83 #x7d ,(- 0 (* 4 n)) ,v)) ; cmpl $<v>,0x<n>(%ebp)
(define (i386:call f g ta t d address n)
(or address urg:call)
`(#xe8 ,@(int->bv32 (- address 5)) ; call relative $00
#x83 #xc4 ,(* n 4))) ; add $00,%esp
(define (i386:call-accu f g ta t d n)
`(,@(i386:push-accu)
,@(i386:pop-accu)
#xff #xd0 ; call *%eax
#x83 #xc4 ,(* n 4))) ; add $00,%esp
(define (i386:accu-not)
`(#x0f #x94 #xc0 ; sete %al
#x0f #xb6 #xc0)) ; movzbl %al,%eax
(define (i386:xor-accu v)
(or n urg:xor-accu)
`(#x35 ,@(int->bv32 v))) ;xor $0xff,%eax
(define (i386:xor-zf)
'(#x9f ; lahf
#x80 #xf4 #x40 ; xor $0x40,%ah
#x9e)) ; sahf
(define (i386:accu-cmp-value v)
`(#x83 #xf8 ,v)) ; cmp $<v>,%eax
(define (i386:accu-test)
'(#x85 #xc0)) ; test %eax,%eax
(define (i386:Xjump n)
(or n urg:Xjump)
`(#xe9 ,@(int->bv32 (if (>= n 0) n (- n 5))))) ; jmp . + <n>
(define (i386:XXjump n)
(or n urg:XXjump)
`(#xe9 ,@(int->bv32 n))) ; jmp . + <n>
(define (i386:Xjump-nz n)
(or n urg:Xjump-nz)
`(#x0f #x85 ,@(int->bv32 n))) ; jnz . + <n>
(define (i386:Xjump-z n)
(or n urg:Xjump-z)
`(#x0f #x84 ,@(int->bv32 n))) ; jz . + <n>
(define (i386:jump n) ;;FIXME: NEED THIS WEIRDNESS for t.c
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP n=~a\n" n)
barf)
`(#xeb ,(if (>= n 0) (- n 2) (- n 2)))) ; jmp <n>
(define (i386:jump-c n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP n=~a\n" n)
barf)
`(#x72 ,(if (>= n 0) n (- n 2)))) ; jc <n>
(define (i386:Xjump-c n)
(or n urg:Xjump-c)
`(#x0f #x82 ,@(int->bv32 n))) ; jc <n>
(define (i386:jump-cz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP n=~a\n" n)
barf)
`(#x76 ,(if (>= n 0) n (- n 2)))) ; jna <n>
(define (i386:jump-ncz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-ncz n=~a\n" n)
barf)
`(#x77 ,(if (>= n 0) n (- n 2)))) ; ja <n>
(define (i386:jump-nc n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-nc n=~a\n" n)
barf)
`(#x73 ,(if (>= n 0) n (- n 2)))) ; jnc <n>
(define (i386:Xjump-nc n)
(or n urg:Xjump-nc)
`(#x0f #x83 ,@(int->bv32 n))) ; jnc <n>
(define (i386:jump-z n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-z n=~a\n" n)
barf)
`(#x74 ,(if (>= n 0) n (- n 2)))) ; jz <n>
(define (i386:jump-nz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-nz n=~a\n" n)
barf)
`(#x75 ,(if (>= n 0) n (- n 2)))) ; jnz <n>
(define (i386:test-jump-z n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-z n=~a\n" n)
barf)
`(#x85 #xc0 ; test %eax,%eax
#x74 ,(if (>= n 0) n (- n 4)))) ; jz <n>
(define (i386:jump-byte-nz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-byte-nz n=~a\n" n)
barf)
`(#x84 #xc0 ; test %al,%al
#x75 ,(if (>= n 0) n (- n 4)))) ; jne <n>
(define (i386:jump-byte-z n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-byte-z n=~a\n" n)
barf)
`(#x84 #xc0 ; test %al,%al
#x74 ,(if (>= n 0) n (- n 4)))) ; jne <n>
(define (i386:byte-test-base)
`(#x38 #xc2)) ; cmp %al,%dl
(define (i386:test-base)
`(#x39 #xd0)) ; cmp %edx,%eax
(define (i386:byte-sub-base)
`(#x28 #xd0)) ; sub %dl,%al
(define (i386:byte-base-sub)
`(#x28 #xd0)) ; sub %al,%dl
(define (i386:sub-base)
`(#x29 #xd0)) ; sub %edx,%eax
(define (i386:base-sub)
`(#x29 #xc2)) ; sub %eax,%edx

135
module/mes/as-i386.scm Normal file
View file

@ -0,0 +1,135 @@
;;; -*-scheme-*-
;;; 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/>.
;;; Commentary:
;;; as-i386.scm defines i386 assembly
;;; Code:
(define-module (mes as-i386)
#:use-module (mes elf)
#:export (
i386:accu-not
i386:accu-cmp-value
i386:accu->base
i386:accu->base-address
i386:accu->base-address+n
i386:accu->global
i386:accu->global-address
i386:accu->local
i386:accu-non-zero?
i386:accu-test
i386:accu-zero?
i386:accu+accu
i386:accu+base
i386:accu+value
i386:accu/base
i386:accu%base
i386:accu-base
i386:accu-shl
i386:base-sub
i386:base->accu
i386:base->accu-address
i386:byte-accu->base-address
i386:base->global
i386:base->local
i386:base-mem->accu
i386:byte-base-sub
i386:byte-base->accu-address
i386:byte-base->accu-address+n
i386:byte-base-mem->accu
i386:local-address->accu
i386:byte-local->accu
i386:byte-mem->accu
i386:base-mem+n->accu
i386:byte-mem->base
i386:byte-test-base
i386:byte-sub-base
i386:call
i386:call-accu
i386:formal
i386:function-locals
i386:function-preamble
i386:global-add
i386:global->accu
i386:global->base
i386:global-address->accu
i386:global-address->base
i386:jump
i386:jump
i386:jump-byte-nz
i386:jump-byte-z
i386:jump-c
i386:jump-cz
i386:jump-le
i386:jump-nc
i386:jump-ncz
i386:jump-nz
i386:jump-z
i386:local->accu
i386:local->base
i386:local-add
i386:local-address->accu
i386:local-ptr->accu
i386:local-ptr->base
i386:local-address->base
i386:local-test
i386:mem->accu
i386:mem+n->accu
i386:pop-accu
i386:push-accu
i386:pop-base
i386:push-base
i386:push-global
i386:push-global-address
i386:push-local
i386:push-local-de-ref
i386:push-local-address
i386:ret
i386:ret-local
i386:sub-base
i386:test-base
i386:test-jump-z
i386:value->accu
i386:value->accu-address
i386:value->accu-address+n
i386:value->global
i386:value->local
i386:value->base
i386:xor-accu
i386:xor-zf
;; long jump
i386:Xjump
i386:Xjump
i386:Xjump-c
i386:Xjump-nc
i386:Xjump-nz
i386:Xjump-z
i386:XXjump
i386:accu+n
i386:base+n
i386:base-address->accu-address
))
(include-from-path "mes/as-i386.mes")

443
module/mes/libc-i386.mes
View file

@ -24,393 +24,6 @@
;;; Code: ;;; Code:
(define (i386:function-preamble)
'(#x55 ; push %ebp
#x89 #xe5)) ; mov %esp,%ebp
;; (define (i386:function-locals)
;; '(#x83 #xec #x20)) ; sub $0x10,%esp -- 8 local vars
(define (i386:function-locals)
'(#x83 #xec #x40)) ; sub $0x10,%esp -- 16 local vars
(define (i386:push-global-address o)
(or o push-global-address)
`(#x68 ,@(int->bv32 o))) ; push $0x<o>
(define (i386:push-global o)
(or o push-global)
`(#xa1 ,@(int->bv32 o) ; mov 0x804a000,%eax
#x50)) ; push %eax
(define (i386:push-local n)
(or n push-local)
`(#xff #x75 ,(- 0 (* 4 n)))) ; pushl 0x<n>(%ebp)
(define (i386:push-local-address n)
(or n push-local-address)
`(#x8d #x45 ,(- 0 (* 4 n)) ; lea 0x<n>(%ebp),%eax
#x50)) ; push %eax
(define (i386:push-local-de-ref n)
(or n push-local-de-ref)
`(#x8b #x45 ,(- 0 (* 4 n)) ; mov -0x<n>(%ebp),%eax
#x0f #xb6 #x00 ; movzbl (%eax),%eax
;;#x0f #xbe #xc0 ; movsbl %al,%eax ***FIXME BYTE****
#x50)) ; push %eax
(define (i386:pop-accu)
'(#x58)) ; pop %eax
(define (i386:push-accu)
'(#x50)) ; push %eax
(define (i386:pop-base)
'(#x5a)) ; pop %eax
(define (i386:push-base)
'(#x52)) ; push %eax
(define (i386:ret)
'(#xc9 ; leave
#xc3)) ; ret
(define (i386:accu->base)
'(#x89 #xc2)) ; mov %eax,%edx
(define (i386:accu->base-address)
'(#x89 #x02)) ; mov %eax,%(edx)
(define (i386:byte-accu->base-address)
'(#x88 #x02)) ; mov %al,%(edx)
(define (i386:accu->base-address+n n)
(or n accu->base-address+n)
`(#x89 #x42 ,n)) ; mov %eax,$0x<n>%(edx)
(define (i386:accu->local n)
(or n accu->local)
`(#x89 #x45 ,(- 0 (* 4 n)))) ; mov %eax,-<0xn>(%ebp)
(define (i386:base->local n)
(or n base->local)
`(#x89 #x55 ,(- 0 (* 4 n)))) ; mov %edx,-<0xn>(%ebp)
(define (i386:base->global n)
(or n base->global)
`(#x89 #x15 ,@(int->bv32 n))) ; mov %edx,0x0
(define (i386:accu->global n)
(or n accu->global)
`(#xa3 ,@(int->bv32 n))) ; mov %eax,0x0
(define (i386:accu->global-address n)
(or n accu->global-address)
`(#x8b #x15 ,@(int->bv32 n) ; mov 0x<n>,%edx
#x89 #x02 )) ; mov %eax,(%edx)
(define (i386:accu-zero?)
'(#x85 #xc0)) ; cmpl %eax,%eax
(define (i386:accu-non-zero?)
(append '(#x85 #xc0) ; cmpl %eax,%eax
(i386:xor-zf)))
(define (i386:accu-shl n)
(or n accu:shl n)
`(#xc1 #xe0 ,n)) ; shl $0x8,%eax
(define (i386:accu+accu)
'(#x01 #xc0)) ; add %eax,%eax
(define (i386:accu+base)
`(#x01 #xd0)) ; add %edx,%eax
(define (i386:accu+value v)
(or v accu+value)
`(#x05 ,@(int->bv32 v))) ; add %eax,%eax
(define (i386:accu-base)
`(#x29 #xd0)) ; sub %edx,%eax
(define (i386:accu/base)
'(#x86 #xd3 ; mov %edx,%ebx
#x31 #xd2 ; xor %edx,%edx
#xf7 #xf3)) ; div %ebx
(define (i386:accu%base)
'(#x86 #xd3 ; mov %edx,%ebx
#x31 #xd2 ; xor %edx,%edx
#xf7 #xf3 ; div %ebx
#x89 #xd0)) ; mov %edx,%eax
(define (i386:base->accu)
'(#x89 #xd0)) ; mov %edx,%eax
(define (i386:local->accu n)
(or n local->accu)
`(#x8b #x45 ,(- 0 (* 4 n)))) ; mov -<0xn>(%ebp),%eax
(define (i386:local-address->accu n)
(or n ladd)
`(#x8d #x45 ,(- 0 (* 4 n)))) ; lea 0x<n>(%ebp),%eax
(define (i386:local-ptr->accu n)
(or n local-ptr->accu)
`(#x89 #xe8 ; mov %ebp,%eax
#x83 #xc0 ,(- 0 (* 4 n)))) ; add $0x<n>,%eax
(define (i386:byte-local->accu n)
(or n byte-local->accu)
`(#x0f #xb6 #x45 ,(- 0 (* 4 n)))) ; movzbl 0x<n>(%ebp),%eax
(define (i386:local->base n)
(or n local->base)
`(#x8b #x55 ,(- 0 (* 4 n)))) ; mov -<0xn>(%ebp),%edx
(define (i386:local-address->base n) ;; DE-REF
(or n local-address->base)
`(#x8d #x55 ,(- 0 (* 4 n)))) ; lea 0x<n>(%ebp),%edx
(define (i386:local-ptr->base n)
(or n local-ptr->base)
`(#x89 #xea ; mov %ebp,%edx
#x83 #xc2 ,(- 0 (* 4 n)))) ; add $0x<n>,%edx
(define (i386:global->base n)
(or n global->base)
`(#xba ,@(int->bv32 n))) ; mov $<n>,%edx
(define (i386:global-address->accu n)
(or n global-address->accu)
`(#xa1 ,@(int->bv32 n))) ; mov 0x<n>,%eax
(define (i386:global-address->base n)
(or n global-address->base)
`(#x8b #x15 ,@(int->bv32 n))) ; mov 0x<n>,%edx
(define (i386:byte-base-mem->accu)
'(#x01 #xd0 ; add %edx,%eax
#x0f #xb6 #x00)) ; movzbl (%eax),%eax
(define (i386:byte-mem->accu)
'(#x0f #xb6 #x00)) ; movzbl (%eax),%eax
(define (i386:byte-mem->base)
'(#x0f #xb6 #x10)) ; movzbl (%eax),%edx
(define (i386:base-mem->accu)
'(#x01 #xd0 ; add %edx,%eax
#x8b #x00)) ; mov (%eax),%eax
(define (i386:mem->accu)
'(#x8b #x00)) ; mov (%eax),%eax
(define (i386:mem+n->accu n)
`(#x8b #x40 ,n)) ; mov 0x<n>(%eax),%eax
(define (i386:base-mem+n->accu n)
(or n base-mem+n->accu)
`(#x01 #xd0 ; add %edx,%eax
#x8b #x40 ,n)) ; mov <n>(%eax),%eax
(define (i386:value->accu v)
(or v urg:value->accu)
`(#xb8 ,@(int->bv32 v))) ; mov $<v>,%eax
(define (i386:value->accu-address v)
`(#xc7 #x00 ,@(int->bv32 v))) ; movl $0x<v>,(%eax)
(define (i386:value->accu-address+n n v)
(or v urg:value->accu-address+n)
`(#xc7 #x40 ,n ,@(int->bv32 v))) ; movl $<v>,0x<n>(%eax)
(define (i386:base->accu-address)
'(#x89 #x10)) ; mov %edx,(%eax)
(define (i386:base-address->accu-address)
'(#x8b #x0a ; mov (%edx),%ecx
#x89 #x08)) ; mov %ecx,(%eax)
(define (i386:accu+n n)
`(#x83 #xc0 ,n)) ; add $0x00,%eax
(define (i386:base+n n)
`(#x83 #xc2 ,n)) ; add $0x00,%edx
(define (i386:byte-base->accu-address)
'(#x88 #x10)) ; mov %dl,(%eax)
(define (i386:byte-base->accu-address+n n)
(or n byte-base->accu-address+n)
`(#x88 #x50 ,n)) ; mov %dl,0x<n>(%eax)
(define (i386:value->base v)
(or v urg:value->base)
`(#xba ,@(int->bv32 v))) ; mov $<v>,%edx
(define (i386:local-add n v)
(or n urg:local-add)
`(#x83 #x45 ,(- 0 (* 4 n)) ,v)) ; addl $<v>,0x<n>(%ebp)
(define (i386:global-add n v)
(or n urg:global-add)
`(#x83 #x05 ,@(int->bv32 n) ,v)) ; addl $<v>,0x<n>
(define (i386:global->accu o)
(or o urg:global->accu)
`(#xb8 ,@(int->bv32 o))) ; mov $<>,%eax
(define (i386:value->global n v)
(or n value->global)
`(#xc7 #x05 ,@(int->bv32 n) ; movl $<v>,(<n>)
,@(int->bv32 v)))
(define (i386:value->local n v)
(or n value->local)
`(#xc7 #x45 ,(- 0 (* 4 n)) ; movl $<v>,0x<n>(%ebp)
,@(int->bv32 v)))
(define (i386:local-test n v)
(or n local-test)
`(#x83 #x7d ,(- 0 (* 4 n)) ,v)) ; cmpl $<v>,0x<n>(%ebp)
(define (i386:call f g ta t d address n)
(or address urg:call)
`(#xe8 ,@(int->bv32 (- address 5)) ; call relative $00
#x83 #xc4 ,(* n 4))) ; add $00,%esp
(define (i386:call-accu f g ta t d n)
`(,@(i386:push-accu)
,@(i386:pop-accu)
#xff #xd0 ; call *%eax
#x83 #xc4 ,(* n 4))) ; add $00,%esp
(define (i386:accu-not)
`(#x0f #x94 #xc0 ; sete %al
#x0f #xb6 #xc0)) ; movzbl %al,%eax
(define (i386:xor-accu v)
(or n urg:xor-accu)
`(#x35 ,@(int->bv32 v))) ;xor $0xff,%eax
(define (i386:xor-zf)
'(#x9f ; lahf
#x80 #xf4 #x40 ; xor $0x40,%ah
#x9e)) ; sahf
(define (i386:accu-cmp-value v)
`(#x83 #xf8 ,v)) ; cmp $<v>,%eax
(define (i386:accu-test)
'(#x85 #xc0)) ; test %eax,%eax
(define (i386:Xjump n)
(or n urg:Xjump)
`(#xe9 ,@(int->bv32 (if (>= n 0) n (- n 5))))) ; jmp . + <n>
(define (i386:XXjump n)
(or n urg:XXjump)
`(#xe9 ,@(int->bv32 n))) ; jmp . + <n>
(define (i386:Xjump-nz n)
(or n urg:Xjump-nz)
`(#x0f #x85 ,@(int->bv32 n))) ; jnz . + <n>
(define (i386:Xjump-z n)
(or n urg:Xjump-z)
`(#x0f #x84 ,@(int->bv32 n))) ; jz . + <n>
(define (i386:jump n) ;;FIXME: NEED THIS WEIRDNESS for t.c
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP n=~a\n" n)
barf)
`(#xeb ,(if (>= n 0) (- n 2) (- n 2)))) ; jmp <n>
(define (i386:jump-c n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP n=~a\n" n)
barf)
`(#x72 ,(if (>= n 0) n (- n 2)))) ; jc <n>
(define (i386:Xjump-c n)
(or n urg:Xjump-c)
`(#x0f #x82 ,@(int->bv32 n))) ; jc <n>
(define (i386:jump-cz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP n=~a\n" n)
barf)
`(#x76 ,(if (>= n 0) n (- n 2)))) ; jna <n>
(define (i386:jump-ncz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-ncz n=~a\n" n)
barf)
`(#x77 ,(if (>= n 0) n (- n 2)))) ; ja <n>
(define (i386:jump-nc n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-nc n=~a\n" n)
barf)
`(#x73 ,(if (>= n 0) n (- n 2)))) ; jnc <n>
(define (i386:Xjump-nc n)
(or n urg:Xjump-nc)
`(#x0f #x83 ,@(int->bv32 n))) ; jnc <n>
(define (i386:jump-z n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-z n=~a\n" n)
barf)
`(#x74 ,(if (>= n 0) n (- n 2)))) ; jz <n>
(define (i386:jump-nz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-nz n=~a\n" n)
barf)
`(#x75 ,(if (>= n 0) n (- n 2)))) ; jnz <n>
(define (i386:test-jump-z n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-z n=~a\n" n)
barf)
`(#x85 #xc0 ; test %eax,%eax
#x74 ,(if (>= n 0) n (- n 4)))) ; jz <n>
(define (i386:jump-byte-nz n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-byte-nz n=~a\n" n)
barf)
`(#x84 #xc0 ; test %al,%al
#x75 ,(if (>= n 0) n (- n 4)))) ; jne <n>
(define (i386:jump-byte-z n)
(when (or (> n #x80) (< n #x-80))
(format (current-error-port) "JUMP-byte-z n=~a\n" n)
barf)
`(#x84 #xc0 ; test %al,%al
#x74 ,(if (>= n 0) n (- n 4)))) ; jne <n>
(define (i386:byte-test-base)
`(#x38 #xc2)) ; cmp %al,%dl
(define (i386:test-base)
`(#x39 #xd0)) ; cmp %edx,%eax
(define (i386:byte-sub-base)
`(#x28 #xd0)) ; sub %dl,%al
(define (i386:byte-base-sub)
`(#x28 #xd0)) ; sub %al,%dl
(define (i386:sub-base)
`(#x29 #xd0)) ; sub %edx,%eax
(define (i386:base-sub)
`(#x29 #xc2)) ; sub %eax,%edx
;;; libc bits
(define (i386:exit f g ta t d) (define (i386:exit f g ta t d)
`( `(
#x5b ; pop %ebx #x5b ; pop %ebx
@ -466,44 +79,20 @@
#xc3 ; ret #xc3 ; ret
)) ))
#! (define (i386:_start)
08048121 <strcmp>: (string-append ".byte"
8048121: 55 push %ebp " 0x89 0xe8" ; mov %ebp,%eax
8048122: 89 e5 mov %esp,%ebp " 0x83 0xc0 0x08" ; add $0x8,%eax
8048124: 83 ec 10 sub $0x10,%esp " 0x50" ; push %eax
8048127: eb 08 jmp 8048131 <strcmp+0x10> " 0x89 0xe8" ; mov %ebp,%eax
" 0x83 0xc0 0x04" ; add $0x4,%eax
" 0x0f 0xb6 0x00" ; movzbl (%eax),%eax
" 0x50" ; push %eax
))
<body> (define i386:libc
8048129: 83 45 08 01 addl $0x1,0x8(%ebp) (list
804812d: 83 45 0c 01 addl $0x1,0xc(%ebp) (cons "exit" (list i386:exit))
(cons "open" (list i386:open))
<test> *a (cons "read" (list i386:read))
8048131: 8b 45 08 mov 0x8(%ebp),%eax (cons "write" (list i386:write))))
8048134: 0f b6 00 movzbl (%eax),%eax
8048137: 84 c0 test %al,%al
8048139: 74 08 je 8048143 <strcmp+0x22>
<test1> *b
804813b: 8b 45 0c mov 0xc(%ebp),%eax
804813e: 0f b6 00 movzbl (%eax),%eax
8048141: 84 c0 test %al,%al
8048143: 74 10 je 8048155 <strcmp+0x34>
<test2> *a == *b
8048145: 8b 45 08 mov 0x8(%ebp),%eax
8048148: 0f b6 10 movzbl (%eax),%edx
804814b: 8b 45 0c mov 0xc(%ebp),%eax
804814e: 0f b6 00 movzbl (%eax),%eax
8048151: 38 c2 cmp %al,%dl
8048153: 84 c0 test %al,%al
8048155: 75 d2 jne 8048129 <strcmp+0x8>
8048157: 8b 45 08 mov 0x8(%ebp),%eax
804815a: 0f b6 10 movzbl (%eax),%edx
804815d: 8b 45 0c mov 0xc(%ebp),%eax
8048160: 0f b6 00 movzbl (%eax),%eax
8048163: 28 d0 sub %dl,%al
8048165: c9 leave
8048166: c3 ret
!#

121
module/mes/libc-i386.scm
View file

@ -25,124 +25,7 @@
;;; Code: ;;; Code:
(define-module (mes libc-i386) (define-module (mes libc-i386)
#:use-module (srfi srfi-1) #:export (i386:libc
#:use-module (mes elf) i386:_start))
#:export (
i386:accu-not
i386:accu-cmp-value
i386:accu->base
i386:accu->base-address
i386:accu->base-address+n
i386:accu->global
i386:accu->global-address
i386:accu->local
i386:accu-non-zero?
i386:accu-test
i386:accu-zero?
i386:accu+accu
i386:accu+base
i386:accu+value
i386:accu/base
i386:accu%base
i386:accu-base
i386:accu-shl
i386:base-sub
i386:base->accu
i386:base->accu-address
i386:byte-accu->base-address
i386:base->global
i386:base->local
i386:base-mem->accu
i386:byte-base-sub
i386:byte-base->accu-address
i386:byte-base->accu-address+n
i386:byte-base-mem->accu
i386:local-address->accu
i386:byte-local->accu
i386:byte-mem->accu
i386:base-mem+n->accu
i386:byte-mem->base
i386:byte-test-base
i386:byte-sub-base
i386:call
i386:call-accu
i386:formal
i386:function-locals
i386:function-preamble
i386:global-add
i386:global->accu
i386:global->base
i386:global-address->accu
i386:global-address->base
i386:jump
i386:jump
i386:jump-byte-nz
i386:jump-byte-z
i386:jump-c
i386:jump-cz
i386:jump-le
i386:jump-nc
i386:jump-ncz
i386:jump-nz
i386:jump-z
i386:local->accu
i386:local->base
i386:local-add
i386:local-address->accu
i386:local-ptr->accu
i386:local-ptr->base
i386:local-address->base
i386:local-test
i386:mem->accu
i386:mem+n->accu
i386:pop-accu
i386:push-accu
i386:pop-base
i386:push-base
i386:push-global
i386:push-global-address
i386:push-local
i386:push-local-de-ref
i386:push-local-address
i386:ret
i386:ret-local
i386:sub-base
i386:test-base
i386:test-jump-z
i386:value->accu
i386:value->accu-address
i386:value->accu-address+n
i386:value->global
i386:value->local
i386:value->base
i386:xor-accu
i386:xor-zf
;; long jump
i386:Xjump
i386:Xjump
i386:Xjump-c
i386:Xjump-nc
i386:Xjump-nz
i386:Xjump-z
i386:XXjump
i386:accu+n
i386:base+n
i386:base-address->accu-address
;; libc
i386:exit
i386:open
i386:read
i386:write
))
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase)))
(mes))
(include-from-path "mes/libc-i386.mes") (include-from-path "mes/libc-i386.mes")

223
module/mes/libc.mes Normal file
View file

@ -0,0 +1,223 @@
;;; -*-scheme-*-
;;; 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/>.
;;; Commentary:
;;; libc.mes provides a minimal portable C library for mescc.
;;; Code:
(cond-expand
(guile-2)
(guile)
(mes
(mes-use-module (nyacc lang c99 parser))
(mes-use-module (mes libc-i386))))
(define _start
(let* ((argc-argv (i386:_start))
(ast (with-input-from-string
(string-append "int _start () {int i;asm(\"" argc-argv "\");i=main ();exit (i);}")
parse-c99)))
ast))
(define strlen
(let* ((ast (with-input-from-string
"
int
strlen (char const* s)
{
int i = 0;
while (s[i]) i++;
return i;
}
"
;;paredit:"
parse-c99)))
ast))
(define getchar
(let* ((ast (with-input-from-string
"
int g_stdin;
int
getchar ()
{
char c;
int r = read (g_stdin, &c, 1);
//int r = read (0, &c, 1);
if (r < 1) return -1;
return c;
}
"
;;paredit:"
parse-c99)))
ast))
(define putchar
(let* ((ast (with-input-from-string
"
int
putchar (int c)
{
//write (STDOUT, s, strlen (s));
//int i = write (STDOUT, s, strlen (s));
write (1, (char*)&c, 1);
return 0;
}
"
;;paredit:"
parse-c99)))
ast))
(define eputs
(let* ((ast (with-input-from-string
"
int
eputs (char const* s)
{
//write (STDERR, s, strlen (s));
//write (2, s, strlen (s));
int i = strlen (s);
write (2, s, i);
return 0;
}
"
;;paredit:"
parse-c99)))
ast))
(define fputs
(let* ((ast (with-input-from-string
"
int
fputs (char const* s, int fd)
{
int i = strlen (s);
write (fd, s, i);
return 0;
}
"
;;paredit:"
parse-c99)))
ast))
(define puts
(let* ((ast (with-input-from-string
"
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;
}
"
;;paredit:"
parse-c99)))
ast))
(define strcmp
(let* ((ast (with-input-from-string
"
int
strcmp (char const* a, char const* b)
{
while (*a && *b && *a == *b)
{
a++;b++;
}
return *a - *b;
}
"
;;paredit:"
parse-c99)))
ast))
(define itoa
(let* ((ast (with-input-from-string
"
char itoa_buf[10];
char const*
itoa (int x)
{
//static char itoa_buf[10];
//char *p = buf+9;
char *p = itoa_buf;
p += 9;
*p-- = 0;
//int sign = x < 0;
int sign;
sign = x < 0;
if (sign)
x = -x;
do
{
*p-- = '0' + (x % 10);
x = x / 10;
} while (x);
if (sign)
*p-- = '-';
return p+1;
}
"
;;paredit:"
parse-c99)))
ast))
;;;;
(define assert_fail
(let* ((ast (with-input-from-string
"
void
assert_fail (char* s)
{
eputs (\"assert fail: \");
eputs (s);
eputs (\"\n\");
//*((int*)0) = 0;
char *fail = s;
fail = 0;
*fail = 0;
}
"
;;paredit:"
parse-c99)))
ast))
(define libc
(list
strlen
getchar
putchar
eputs
fputs
puts
strcmp
itoa
assert_fail))

36
module/mes/libc.scm Normal file
View file

@ -0,0 +1,36 @@
;;; -*-scheme-*-
;;; 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/>.
;;; Commentary:
;;; Code:
(define-module (mes libc)
#:use-module (nyacc lang c99 parser)
#:use-module (mes libc-i386)
#:export (libc _start))
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase)))
(mes))
(include-from-path "mes/libc.mes")

43
mstart.c Normal file
View file

@ -0,0 +1,43 @@
/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of Mes.
*
* Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* Mes is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#if __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

280
scaffold/cons-mes.c
View file

@ -18,6 +18,11 @@
* along with Mes. If not, see <http://www.gnu.org/licenses/>. * along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/ */
#if __GNUC__
#include "mlibc.c"
#endif
#define assert(x) ((x) ? (void)0 : assert_fail (#x))
#define MES_MINI 1 #define MES_MINI 1
#define FIXED_PRIMITIVES 0 #define FIXED_PRIMITIVES 0
@ -35,209 +40,6 @@
char arena[2000]; char arena[2000];
//char buf0[400]; //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; typedef int SCM;
#if __GNUC__ #if __GNUC__
@ -278,32 +80,6 @@ struct function {
struct scm *g_cells = arena; 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_nil 1
#define cell_f 2 #define cell_f 2
#define cell_t 3 #define cell_t 3
@ -341,37 +117,25 @@ struct function g_functions[5];
int g_function = 0; int g_function = 0;
#if __GNUC__
//FIXME
SCM make_cell (SCM type, SCM car, SCM cdr); SCM make_cell (SCM type, SCM car, SCM cdr);
#endif
struct function fun_make_cell = {&make_cell,3,"make-cell"}; struct function fun_make_cell = {&make_cell,3,"make-cell"};
struct scm scm_make_cell = {TFUNCTION,0,0}; struct scm scm_make_cell = {TFUNCTION,0,0};
//, "make-cell", 0}; //, "make-cell", 0};
SCM cell_make_cell; SCM cell_make_cell;
#if __GNUC__
//FIXME
SCM cons (SCM x, SCM y); SCM cons (SCM x, SCM y);
#endif
struct function fun_cons = {&cons,2,"cons"}; struct function fun_cons = {&cons,2,"cons"};
struct scm scm_cons = {TFUNCTION,0,0}; struct scm scm_cons = {TFUNCTION,0,0};
// "cons", 0}; // "cons", 0};
SCM cell_cons; SCM cell_cons;
#if __GNUC__
//FIXME
SCM car (SCM x); SCM car (SCM x);
#endif
struct function fun_car = {&car,1,"car"}; struct function fun_car = {&car,1,"car"};
struct scm scm_car = {TFUNCTION,0,0}; struct scm scm_car = {TFUNCTION,0,0};
// "car", 0}; // "car", 0};
SCM cell_car; SCM cell_car;
#if __GNUC__
//FIXME
SCM cdr (SCM x); SCM cdr (SCM x);
#endif
struct function fun_cdr = {&cdr,1,"cdr"}; struct function fun_cdr = {&cdr,1,"cdr"};
struct scm scm_cdr = {TFUNCTION,0,0}; struct scm scm_cdr = {TFUNCTION,0,0};
// "cdr", 0}; // "cdr", 0};
@ -469,11 +233,11 @@ tmp_num2_ (int x)
SCM SCM
cons (SCM x, SCM y) cons (SCM x, SCM y)
{ {
#if 0
puts ("cons x="); puts ("cons x=");
#if __GNUC__
puts (itoa (x)); puts (itoa (x));
#endif
puts ("\n"); puts ("\n");
#endif
VALUE (tmp_num) = PAIR; VALUE (tmp_num) = PAIR;
return make_cell (tmp_num, x, y); return make_cell (tmp_num, x, y);
} }
@ -481,11 +245,11 @@ cons (SCM x, SCM y)
SCM SCM
car (SCM x) car (SCM x)
{ {
#if 0
puts ("car x="); puts ("car x=");
#if __GNUC__
puts (itoa (x)); puts (itoa (x));
#endif
puts ("\n"); puts ("\n");
#endif
#if MES_MINI #if MES_MINI
//Nyacc //Nyacc
//assert ("!car"); //assert ("!car");
@ -498,11 +262,11 @@ car (SCM x)
SCM SCM
cdr (SCM x) cdr (SCM x)
{ {
#if 0
puts ("cdr x="); puts ("cdr x=");
#if __GNUC__
puts (itoa (x)); puts (itoa (x));
#endif
puts ("\n"); puts ("\n");
#endif
#if MES_MINI #if MES_MINI
//Nyacc //Nyacc
//assert ("!cdr"); //assert ("!cdr");
@ -1290,25 +1054,5 @@ main (int argc, char *argv[])
} }
#if __GNUC__ #if __GNUC__
void #include "mstart.c"
_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 #endif

131
scaffold/m.c
View file

@ -18,115 +18,10 @@
* along with Mes. If not, see <http://www.gnu.org/licenses/>. * along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/ */
int g_stdin = 0;
typedef long size_t;
#if __GNUC__ #if __GNUC__
void #include "mlibc.c"
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 #endif
#define assert(x) ((x) ? (void)0 : assert_fail (#x))
int int
main (int argc, char *argv[]) main (int argc, char *argv[])
@ -141,25 +36,5 @@ main (int argc, char *argv[])
} }
#if __GNUC__ #if __GNUC__
void #include "mstart.c"
_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 #endif

190
scaffold/micro-mes.c
View file

@ -18,6 +18,12 @@
* along with Mes. If not, see <http://www.gnu.org/licenses/>. * along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/ */
#if __GNUC__
#include "mlibc.c"
#endif
#define assert(x) ((x) ? (void)0 : assert_fail(#x))
#define MES_MINI 1 #define MES_MINI 1
#if __GNUC__ #if __GNUC__
@ -30,168 +36,6 @@
#define NYACC2 nyacc2 #define NYACC2 nyacc2
#endif #endif
#if __GNUC__
typedef long size_t;
void *malloc (size_t i);
int open (char const *s, int mode);
int read (int fd, int 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
open (char const *s, int mode)
{
//return syscall (SYS_open, s, mode);
return 0;
}
int
read (int fd, int n)
{
//syscall (SYS_read, 1, 1);
return 0;
}
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"
);
}
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
//#include <stdio.h>
//#include <string.h>
//#include <stdlib.h>
int g_stdin;
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
getchar ()
{
return read (g_stdin, 1);
}
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;
}
void
assert_fail (char* s)
{
eputs ("assert fail:");
eputs (s);
eputs ("\n");
*((int*)0) = 0;
}
#endif
#define assert(x) ((x) ? (void)0 : assert_fail(#x))
typedef int SCM; typedef int SCM;
#if __GNUC__ #if __GNUC__
@ -267,25 +111,5 @@ main (int argc, char *argv[])
} }
#if __GNUC__ #if __GNUC__
void #include "mstart.c"
_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 #endif

253
scaffold/mini-mes.c
View file

@ -18,6 +18,11 @@
* along with Mes. If not, see <http://www.gnu.org/licenses/>. * along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/ */
#if __GNUC__
#include "mlibc.c"
#endif
#define assert(x) ((x) ? (void)0 : assert_fail (#x))
#define MES_MINI 1 #define MES_MINI 1
#define FIXED_PRIMITIVES 0 #define FIXED_PRIMITIVES 0
@ -35,220 +40,6 @@
int ARENA_SIZE = 1200000; int ARENA_SIZE = 1200000;
char arena[1200000]; char arena[1200000];
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 puts (char const*);
char const* itoa (int);
int
getchar ()
{
char c;
int r = read (g_stdin, &c, 1);
if (r < 1) return -1;
int i = c;
if (i < 0) i += 256;
return i;
}
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;
}
#endif
char itoa_buf[10];
char const*
itoa (int x)
{
//static char itoa_buf[10];
//char *p = buf+9;
char *p = itoa_buf;
p += 9;
*p-- = 0;
//int sign = x < 0;
int sign;
sign = x < 0;
if (sign)
x = -x;
do
{
*p-- = '0' + (x % 10);
x = x / 10;
} while (x);
if (sign)
*p-- = '-';
return p+1;
}
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; typedef int SCM;
int g_debug = 0; int g_debug = 0;
@ -415,7 +206,9 @@ int g_function = 0;
SCM SCM
alloc (int n) alloc (int n)
{ {
#if __GNUC__
assert (g_free + n < ARENA_SIZE); assert (g_free + n < ARENA_SIZE);
#endif
SCM x = g_free; SCM x = g_free;
g_free += n; g_free += n;
return x; return x;
@ -427,7 +220,9 @@ SCM
make_cell (SCM type, SCM car, SCM cdr) make_cell (SCM type, SCM car, SCM cdr)
{ {
SCM x = alloc (1); SCM x = alloc (1);
#if __GNUC__
assert (TYPE (type) == TNUMBER); assert (TYPE (type) == TNUMBER);
#endif
TYPE (x) = VALUE (type); TYPE (x) = VALUE (type);
if (VALUE (type) == TCHAR || VALUE (type) == TNUMBER) { if (VALUE (type) == TCHAR || VALUE (type) == TNUMBER) {
if (car) CAR (x) = CAR (car); if (car) CAR (x) = CAR (car);
@ -557,7 +352,9 @@ SCM
append2 (SCM x, SCM y) append2 (SCM x, SCM y)
{ {
if (x == cell_nil) return y; if (x == cell_nil) return y;
#if __GNUC__
assert (TYPE (x) == TPAIR); assert (TYPE (x) == TPAIR);
#endif
return cons (car (x), append2 (cdr (x), y)); return cons (car (x), append2 (cdr (x), y));
} }
@ -616,7 +413,9 @@ assq_ref_env (SCM x, SCM a)
SCM SCM
set_car_x (SCM x, SCM e) set_car_x (SCM x, SCM e)
{ {
#if __GNUC__
assert (TYPE (x) == TPAIR); assert (TYPE (x) == TPAIR);
#endif
CAR (x) = e; CAR (x) = e;
return cell_unspecified; return cell_unspecified;
} }
@ -1068,8 +867,10 @@ SCM
list_of_char_equal_p (SCM a, SCM b) list_of_char_equal_p (SCM a, SCM b)
{ {
while (a != cell_nil && b != cell_nil && VALUE (car (a)) == VALUE (car (b))) { while (a != cell_nil && b != cell_nil && VALUE (car (a)) == VALUE (car (b))) {
#if __GNUC__
assert (TYPE (car (a)) == TCHAR); assert (TYPE (car (a)) == TCHAR);
assert (TYPE (car (b)) == TCHAR); assert (TYPE (car (b)) == TCHAR);
#endif
a = cdr (a); a = cdr (a);
b = cdr (b); b = cdr (b);
} }
@ -1132,7 +933,9 @@ write_byte (SCM x) ///((arity . n))
int fd = 1; int fd = 1;
if (TYPE (p) == TPAIR && TYPE (car (p)) == TNUMBER) fd = VALUE (car (p)); if (TYPE (p) == TPAIR && TYPE (car (p)) == TNUMBER) fd = VALUE (car (p));
//FILE *f = fd == 1 ? stdout : stderr; //FILE *f = fd == 1 ? stdout : stderr;
#if __GNUC__
assert (TYPE (c) == TNUMBER || TYPE (c) == TCHAR); assert (TYPE (c) == TNUMBER || TYPE (c) == TCHAR);
#endif
// fputc (VALUE (c), f); // fputc (VALUE (c), f);
char cc = VALUE (c); char cc = VALUE (c);
write (1, (char*)&cc, fd); write (1, (char*)&cc, fd);
@ -1454,25 +1257,5 @@ main (int argc, char *argv[])
} }
#if __GNUC__ #if __GNUC__
void #include "mstart.c"
_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 #endif

131
scaffold/t.c
View file

@ -19,75 +19,9 @@
*/ */
#if __GNUC__ #if __GNUC__
void #include "mlibc.c"
exit (int code)
{
asm (
"movl %0,%%ebx\n\t"
"movl $1,%%eax\n\t"
"int $0x80"
: // no outputs "=" (r)
: "" (code)
);
// not reached
exit (0);
}
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"
);
}
#define STDOUT 1
typedef long size_t;
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;
}
int
putchar (int c)
{
//write (STDOUT, s, strlen (s));
//int i = write (STDOUT, s, strlen (s));
write (1, (char*)&c, 1);
return 0;
}
int
strcmp (char const* a, char const* b)
{
while (*a && *b && *a == *b) {a++;b++;}
return *a - *b;
}
#endif #endif
#define assert(x) ((x) ? (void)0 : assert_fail (#x))
struct scm { struct scm {
int type; int type;
@ -136,36 +70,6 @@ struct scm scm_fun = {TFUNCTION,0,0};
SCM cell_fun; SCM cell_fun;
#if 1 #if 1
char itoa_buf[10];
char const*
itoa (int x)
{
//static char itoa_buf[10];
//char *p = buf+9;
char *p = itoa_buf;
p += 9;
*p-- = 0;
//int sign = x < 0;
int sign;
sign = x < 0;
if (sign)
x = -x;
do
{
*p-- = '0' + (x % 10);
x = x / 10;
} while (x);
if (sign)
*p-- = '-';
return p+1;
}
int int
add (int a, int b) add (int a, int b)
{ {
@ -546,6 +450,12 @@ test (char *p)
puts ("t: (f) ?\n"); puts ("t: (f) ?\n");
(f) ? exit (1) : 1; (f) ? exit (1) : 1;
puts ("t: assert (1) ?\n");
assert (1);
puts ("t: assert (f==0) ?\n");
assert (f==0);
puts ("t: p[0] != 't'\n"); puts ("t: p[0] != 't'\n");
if (p[0] != 't') return p[0]; if (p[0] != 't') return p[0];
@ -758,28 +668,5 @@ main (int argc, char *argv[])
} }
#if __GNUC__ #if __GNUC__
void #include "mstart.c"
_start ()
{
// int r=main ();
// exit (r);
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 #endif

232
scaffold/tiny-mes.c
View file

@ -18,6 +18,11 @@
* along with Mes. If not, see <http://www.gnu.org/licenses/>. * along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/ */
#if __GNUC__
#include "mlibc.c"
#endif
#define assert(x) ((x) ? (void)0 : assert_fail (#x))
#define MES_MINI 1 #define MES_MINI 1
#if __GNUC__ #if __GNUC__
@ -33,210 +38,6 @@
char arena[200]; char arena[200];
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; typedef int SCM;
#if __GNUC__ #if __GNUC__
@ -567,26 +368,5 @@ main (int argc, char *argv[])
} }
#if __GNUC__ #if __GNUC__
void #include "mstart.c"
_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 #endif