mescc: Have micro-mes use strcmp to print help.
* doc/examples/micro-mes.c (main): Add --help. * module/language/c99/compiler.mes (info?): New function. (expr->accu): Handle function call and sub. (ast->info): Handle if not, and, de-ref, eq, sub, return f (). * module/mes/libc-i386.mes (i386:accu-zero?, i386:Xmem-byte->accu, i386:Xmem-byte->base, i386:jump-byte-nz, i386:jump-byte-z, i386:test-byte-base, i386:Xjump-byte-z, i386:sub-byte-base): New functions. * module/mes/libc-i386.scm: Export them.
This commit is contained in:
Jan Nieuwenhuizen
parent
107795b13c
commit
8d1e001ab2
|
|
@ -179,8 +179,10 @@
|
|||
(pmatch o
|
||||
((p-expr (fixed ,value)) (string->number value))
|
||||
((p-expr (ident ,name)) ((ident->accu (.locals info)) name))
|
||||
((fctn-call . _) ((ast->info info) `(expr-stmt ,o)))
|
||||
((sub . _) ((ast->info info) o)) ;; FIXME: expr-stmt
|
||||
(_
|
||||
(format (current-error-port) "SKIP expr-accu=~a\n" o)
|
||||
(format (current-error-port) "SKIP expr->accu=~a\n" o)
|
||||
0)
|
||||
)))
|
||||
|
||||
|
|
@ -221,7 +223,7 @@
|
|||
((fctn-defn . _) ((function->info info) o))
|
||||
((comment . _) info)
|
||||
((cpp-stmt (define (name ,name) (repl ,value)))
|
||||
(stderr "SKIP: #define ~a ~a\n" name value)
|
||||
(stderr "SKIP: #define ~s ~s\n" name value)
|
||||
info)
|
||||
|
||||
((compd-stmt (block-item-list . ,statements)) ((ast-list->info info) statements))
|
||||
|
|
@ -264,6 +266,24 @@
|
|||
body-text)
|
||||
#:globals (.globals body-info))))
|
||||
|
||||
((if (not (fctn-call . ,call)) ,body)
|
||||
(let* ((call-info ((ast->info info) `(expr-stmt (fctn-call . ,call))))
|
||||
(info (clone info #:text '()))
|
||||
(body-info ((ast->info info) body))
|
||||
(body-text (.text body-info))
|
||||
(body-length (length (text->list body-text))))
|
||||
|
||||
(clone info #:text
|
||||
(append (.text call-info)
|
||||
(list (lambda (f g t d)
|
||||
(append
|
||||
;;(i386:local-test (assoc-ref locals name) 0)
|
||||
;;(i386:accu-test (assoc-ref locals name) 0)
|
||||
(i386:jump-nz body-length))))
|
||||
body-text)
|
||||
#:globals (append (.globals call-info)
|
||||
(.globals body-info)))))
|
||||
|
||||
(;;(for ,init ,test ,step ,body)
|
||||
(for ,init
|
||||
;; FIXME: ,test
|
||||
|
|
@ -298,7 +318,7 @@
|
|||
body-text
|
||||
step-text
|
||||
;;test-text
|
||||
;;(list (lambda (f g t d) (i386:jump-nz (- (+ body-length test-length)))))
|
||||
;;(list (lambda (f g t d) (i386:jump-byte-nz (- (+ body-length test-length)))))
|
||||
(list (lambda (f g t d)
|
||||
(append
|
||||
(i386:local-test (assoc-ref init-locals name) value)
|
||||
|
|
@ -323,8 +343,55 @@
|
|||
(list (lambda (f g t d) (i386:jump body-length)))
|
||||
body-text
|
||||
test-text
|
||||
(list (lambda (f g t d) (i386:jump-nz (- (+ body-length test-length))))))
|
||||
#:globals (.globals body-info))))
|
||||
(list (lambda (f g t d) (i386:jump-byte-nz (- (+ body-length test-length))))))
|
||||
#:globals (append globals (.globals body-info)))))
|
||||
|
||||
;;(and (and (de-ref (p-expr (ident "a"))) (de-ref (p-expr (ident "b")))) (eq (de-ref (p-expr (ident "a"))) (de-ref (p-expr (ident "b")))))
|
||||
|
||||
((de-ref (p-expr (ident ,name)))
|
||||
(clone info #:text
|
||||
(append text
|
||||
(list (lambda (f g t d)
|
||||
(append (i386:local->accu (assoc-ref locals name))
|
||||
(i386:Xmem-byte->accu)))))))
|
||||
|
||||
((and ,a ,b)
|
||||
(let* ((info (clone info #:text '()))
|
||||
(a-info ((ast->info info) a))
|
||||
(a-text (.text a-info))
|
||||
(a-length (length (text->list a-text)))
|
||||
|
||||
(b-info ((ast->info info) b))
|
||||
(b-text (.text b-info))
|
||||
(b-length (length (text->list b-text))))
|
||||
|
||||
(clone info #:text
|
||||
(append text
|
||||
a-text
|
||||
(list (lambda (f g t d) (i386:jump-byte-z (+ b-length
|
||||
2)))) ;; FIXME: need jump after last test
|
||||
b-text))))
|
||||
|
||||
((eq (de-ref (p-expr (ident ,a))) (de-ref (p-expr (ident ,b))))
|
||||
(clone info #:text
|
||||
(append text
|
||||
(list (lambda (f g t d)
|
||||
(append
|
||||
(append (i386:local->accu (assoc-ref locals a))
|
||||
(i386:Xmem-byte->base)
|
||||
(i386:local->accu (assoc-ref locals b))
|
||||
(i386:Xmem-byte->accu)
|
||||
(i386:test-byte-base))))))))
|
||||
|
||||
((sub (de-ref (p-expr (ident ,a))) (de-ref (p-expr (ident ,b))))
|
||||
(clone info #:text
|
||||
(append text
|
||||
(list (lambda (f g t d)
|
||||
(append (i386:local->accu (assoc-ref locals a))
|
||||
(i386:Xmem-byte->base)
|
||||
(i386:local->accu (assoc-ref locals b))
|
||||
(i386:Xmem-byte->accu)
|
||||
(i386:sub-byte-base)))))))
|
||||
|
||||
((array-ref (p-expr (fixed ,value)) (p-expr (ident ,name)))
|
||||
(let ((value (string->number value)))
|
||||
|
|
@ -356,8 +423,12 @@
|
|||
(i386:local-add (assoc-ref locals name) 1))))))
|
||||
|
||||
((return ,expr)
|
||||
(clone info #:text
|
||||
(append text (list (i386:ret ((expr->accu info) expr))))))
|
||||
(let ((accu ((expr->accu info) expr)))
|
||||
(if (info? accu)
|
||||
(clone accu #:text
|
||||
(append (.text accu) (list (i386:ret (lambda _ '())))))
|
||||
(clone info #:text
|
||||
(append text (list (i386:ret ((expr->accu info) expr))))))))
|
||||
|
||||
;; int i;
|
||||
((decl (decl-spec-list (type-spec (fixed-type ,type))) (init-declr-list (init-declr (ident ,name))))
|
||||
|
|
@ -414,7 +485,7 @@
|
|||
(clone info #:text (append (.text info) (list (lambda (f g t d) (i386:ret-local (assoc-ref locals name))))))))
|
||||
|
||||
(_
|
||||
(format (current-error-port) "SKIP statement=~a\n" o)
|
||||
(format (current-error-port) "SKIP statement=~s\n" o)
|
||||
info)))))
|
||||
|
||||
(define (info->exe info)
|
||||
|
|
@ -557,6 +628,23 @@ puts (char const* s)
|
|||
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))
|
||||
|
|
@ -567,7 +655,8 @@ puts (char const* s)
|
|||
strlen
|
||||
eputs
|
||||
fputs
|
||||
puts))
|
||||
puts
|
||||
strcmp))
|
||||
|
||||
(define (compile)
|
||||
(let* ((ast (mescc))
|
||||
|
|
|
|||
|
|
@ -73,6 +73,9 @@
|
|||
(or n al)
|
||||
`(#x89 #x45 ,(- 0 (* 4 n)))) ; mov ,%eax,-<0xn>(%ebp)
|
||||
|
||||
(define (i386:accu-zero?)
|
||||
`(#x85 #xc0)) ; cmpl %eax,%eax
|
||||
|
||||
(define (i386:local->accu n)
|
||||
(or n la)
|
||||
`(#x8b #x45 ,(- 0 (* 4 n)))) ; mov -<0xn>(%ebp),%eax
|
||||
|
|
@ -85,6 +88,12 @@
|
|||
'(#x01 #xd0 ; add %edx,%eax
|
||||
#x0f #xb6 #x00)) ; movzbl (%eax),%eax
|
||||
|
||||
(define (i386:Xmem-byte->accu)
|
||||
'(#x0f #xb6 #x00)) ; movzbl (%eax),%eax
|
||||
|
||||
(define (i386:Xmem-byte->base)
|
||||
'(#x0f #xb6 #x10)) ; movzbl (%eax),%edx
|
||||
|
||||
(define (i386:mem->accu)
|
||||
'(#x01 #xd0 ; add %edx,%eax
|
||||
#x8b #x00)) ; mov (%eax),%eax
|
||||
|
|
@ -171,55 +180,82 @@
|
|||
(define (i386:jump-le n)
|
||||
`(#x7e ,(if (>= n 0) n (- n 4)))) ; jle <n>
|
||||
|
||||
(define (i386:jump-nz n)
|
||||
(define (i386:jump-byte-nz n)
|
||||
`(#x84 #xc0 ; test %al,%al
|
||||
#x75 ,(if (>= n 0) n (- n 4)))) ; jne <n>
|
||||
|
||||
(define (i386:jump-nz n)
|
||||
`(#x85 #xc0 ; test %eax,%eax
|
||||
#x75 ,(if (>= n 0) n (- n 4)))) ; jne <n>
|
||||
|
||||
(define (i386:jump-byte-z n)
|
||||
`(#x84 #xc0 ; test %al,%al
|
||||
#x74 ,(if (>= n 0) n (- n 4)))) ; jne <n>
|
||||
|
||||
(define (i386:test-byte-base)
|
||||
`(#x38 #xc2)) ; cmp %al,%dl
|
||||
|
||||
(define (i386:Xjump-byte-z n)
|
||||
`(#x74 ,(if (>= n 0) n (- n 2)))) ; je <n>
|
||||
|
||||
(define (i386:sub-byte-base)
|
||||
`(#x28 #xd0)) ; sub %dl,%al
|
||||
|
||||
;;28 d0 sub %dl,%al
|
||||
;;28 c2 sub %al,%dl
|
||||
;;29 d0 sub %edx,%eax
|
||||
;;29 c2 sub %eax,%edx
|
||||
|
||||
#!
|
||||
int
|
||||
strcmp (char const* a, char const* b)
|
||||
{
|
||||
while (*a && *b && *a == *b) {*a++;b++;
|
||||
}
|
||||
while (*a && *b && *a == *b)
|
||||
{
|
||||
a++;b++;
|
||||
}
|
||||
return *a == *b;
|
||||
}
|
||||
08048150 <strcmp>:
|
||||
8048150: 55 push %ebp
|
||||
8048151: 89 e5 mov %esp,%ebp
|
||||
8048153: eb 0d jmp 8048162 <strcmp+0x12>
|
||||
|
||||
8048153: eb 08 jmp 804815d <strcmp+0xd>
|
||||
|
||||
<body>
|
||||
8048155: 8b 45 08 mov 0x8(%ebp),%eax
|
||||
8048158: 83 c0 01 add $0x1,%eax
|
||||
804815b: 89 45 08 mov %eax,0x8(%ebp)
|
||||
804815e: 83 45 0c 01 addl $0x1,0xc(%ebp)
|
||||
8048155: 83 45 08 01 addl $0x1,0x8(%ebp)
|
||||
8048159: 83 45 0c 01 addl $0x1,0xc(%ebp)
|
||||
|
||||
<test>
|
||||
8048162: 8b 45 08 mov 0x8(%ebp),%eax
|
||||
8048165: 0f b6 00 movzbl (%eax),%eax
|
||||
8048168: 84 c0 test %al,%al
|
||||
804816a: 74 1a je 8048186 <strcmp+0x36>
|
||||
804815d: 8b 45 08 mov 0x8(%ebp),%eax
|
||||
8048160: 0f b6 00 movzbl (%eax),%eax
|
||||
8048163: 84 c0 test %al,%al
|
||||
8048165: 74 1a je 8048181 <strcmp+0x31>
|
||||
|
||||
804816c: 8b 45 0c mov 0xc(%ebp),%eax
|
||||
804816f: 0f b6 00 movzbl (%eax),%eax
|
||||
8048172: 84 c0 test %al,%al
|
||||
8048174: 74 10 je 8048186 <strcmp+0x36>
|
||||
8048167: 8b 45 0c mov 0xc(%ebp),%eax
|
||||
804816a: 0f b6 00 movzbl (%eax),%eax
|
||||
804816d: 84 c0 test %al,%al
|
||||
804816f: 74 10 je 8048181 <strcmp+0x31>
|
||||
|
||||
8048176: 8b 45 08 mov 0x8(%ebp),%eax
|
||||
8048179: 0f b6 10 movzbl (%eax),%edx
|
||||
804817c: 8b 45 0c mov 0xc(%ebp),%eax
|
||||
804817f: 0f b6 00 movzbl (%eax),%eax
|
||||
8048182: 38 c2 cmp %al,%dl
|
||||
8048184: 74 cf je 8048155 <strcmp+0x5>
|
||||
8048171: 8b 45 08 mov 0x8(%ebp),%eax
|
||||
8048174: 0f b6 10 movzbl (%eax),%edx
|
||||
8048177: 8b 45 0c mov 0xc(%ebp),%eax
|
||||
804817a: 0f b6 00 movzbl (%eax),%eax
|
||||
804817d: 38 c2 cmp %al,%dl
|
||||
804817f: 74 d4 je 8048155 <strcmp+0x5>
|
||||
|
||||
<done>
|
||||
8048186: 8b 45 08 mov 0x8(%ebp),%eax
|
||||
8048189: 0f b6 10 movzbl (%eax),%edx
|
||||
804818c: 8b 45 0c mov 0xc(%ebp),%eax
|
||||
804818f: 0f b6 00 movzbl (%eax),%eax
|
||||
8048192: 38 c2 cmp %al,%dl
|
||||
8048194: 0f 94 c0 sete %al
|
||||
8048197: 0f b6 c0 movzbl %al,%eax
|
||||
804819a: 5d pop %ebp
|
||||
804819b: c3 ret
|
||||
<exit>
|
||||
8048181: 8b 45 08 mov 0x8(%ebp),%eax
|
||||
8048184: 0f b6 00 movzbl (%eax),%eax
|
||||
8048187: 0f be d0 movsbl %al,%edx
|
||||
|
||||
804818a: 8b 45 0c mov 0xc(%ebp),%eax
|
||||
804818d: 0f b6 00 movzbl (%eax),%eax
|
||||
8048190: 0f be c0 movsbl %al,%eax
|
||||
|
||||
8048193: 29 c2 sub %eax,%edx
|
||||
8048195: 89 d0 mov %edx,%eax
|
||||
|
||||
8048197: 5d pop %ebp
|
||||
8048198: c3 ret
|
||||
!#
|
||||
|
|
|
|||
|
|
@ -35,6 +35,8 @@
|
|||
i386:function-locals
|
||||
i386:eputs
|
||||
i386:jump
|
||||
i386:jump-byte-nz
|
||||
i386:jump-byte-z
|
||||
i386:jump-nz
|
||||
i386:jump-le
|
||||
i386:local-add
|
||||
|
|
@ -44,6 +46,7 @@
|
|||
i386:local-test
|
||||
i386:mem->accu
|
||||
i386:mem-byte->accu
|
||||
i386:Xmem-byte->accu
|
||||
i386:push-accu
|
||||
i386:puts
|
||||
i386:ref-global
|
||||
|
|
@ -52,6 +55,11 @@
|
|||
i386:ret-local
|
||||
i386:value->accu
|
||||
i386:write
|
||||
|
||||
i386:test-byte-base
|
||||
i386:Xmem-byte->base
|
||||
i386:Xjump-byte-z
|
||||
i386:sub-byte-base
|
||||
))
|
||||
|
||||
(cond-expand
|
||||
|
|
|
|||
|
|
@ -30,13 +30,13 @@
|
|||
#define NYACC2 nyacc2
|
||||
#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);
|
||||
|
||||
#if __GNUC__
|
||||
void
|
||||
exit (int code)
|
||||
{
|
||||
|
|
@ -99,7 +99,6 @@ free (void *p)
|
|||
int *n = (int*)p-1;
|
||||
//munmap ((void*)p, *n);
|
||||
}
|
||||
#endif
|
||||
|
||||
#define EOF -1
|
||||
#define STDIN 0
|
||||
|
|
@ -112,7 +111,6 @@ free (void *p)
|
|||
|
||||
int g_stdin;
|
||||
|
||||
#if __GNUC__
|
||||
size_t
|
||||
strlen (char const* s)
|
||||
{
|
||||
|
|
@ -224,29 +222,17 @@ main (int argc, char *argv[])
|
|||
{
|
||||
puts ("\narg1=");
|
||||
puts (argv[1]);
|
||||
if (!strcmp (argv[1], "--help")) return puts ("Usage: mes [--dump|--load] < FILE");
|
||||
}
|
||||
puts ("\n");
|
||||
eputs ("Strlen...\n");
|
||||
puts ("Bye micro\n");
|
||||
int i = argc;
|
||||
//int i = strcmp (argv[1], "1");
|
||||
return i;
|
||||
}
|
||||
|
||||
#if __GNUC__
|
||||
// int
|
||||
// test1()
|
||||
// {
|
||||
// return 9;
|
||||
// }
|
||||
|
||||
// void
|
||||
// test()
|
||||
// {
|
||||
// int r;
|
||||
// r=7;
|
||||
// r=test1();
|
||||
// }
|
||||
|
||||
void
|
||||
_start ()
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue