mescc: Tinycc support: Char and short sign extend.
* module/mes/as-i386.mes (i386:accu*n->local, i386:byte-accu->local+n, i386:word-accu->local+n): Remove. (i386:byte-accu, i386:signed-byte-accu, i386:word-accu, i386:signed-word-accu): New function. * module/mes/as-i386.scm: Export them. * module/language/c99/compiler.mes (accu->local+n-text): Simplify. (mem->accu, convert-accu): New function. (expr->accu): Use them. * stage0/x86.M1 (mov____%al,0x32(%ebp), mov____%al,0x8(%ebp), mov____%ax,0x32(%ebp), mov____%ax,0x8(%ebp), movzbl_0x32(%ebp),%eax, movzbl_0x8(%ebp),%eax, movzwl_0x32(%ebp),%eax, movzwl_0x8(%ebp),%eax): Deprecate. * scaffold/tests/7r-sign-extend.c: Test it. * build-aux/check-mescc.sh (tests): Run it.
This commit is contained in:
Jan Nieuwenhuizen
parent
7f712e4555
commit
4faeece057
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@ -115,6 +115,7 @@ t
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7o-struct-pre-post
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7p-struct-cast
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7q-bit-field
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7r-sign-extend
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80-setjmp
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81-qsort
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82-define
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@ -148,33 +148,56 @@
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(cons `(tag ,name) (make-type 'union size fields))))
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(define i386:type-alist
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`(("char" . ,(make-type 'builtin 1 #f))
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("short" . ,(make-type 'builtin 2 #f))
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("int" . ,(make-type 'builtin 4 #f))
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("long" . ,(make-type 'builtin 4 #f))
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;;("long long" . ,(make-type 'builtin 8 #f))
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;;("long long int" . ,(make-type 'builtin 8 #f))
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`(("char" . ,(make-type 'signed 1 #f))
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("short" . ,(make-type 'signed 2 #f))
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("int" . ,(make-type 'signed 4 #f))
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("long" . ,(make-type 'signed 4 #f))
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;;("long long" . ,(make-type 'signed 8 #f))
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;;("long long int" . ,(make-type 'signed 8 #f))
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("long long" . ,(make-type 'builtin 4 #f)) ;; FIXME
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("long long int" . ,(make-type 'builtin 4 #f))
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("long long" . ,(make-type 'signed 4 #f)) ;; FIXME
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("long long int" . ,(make-type 'signed 4 #f))
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("void" . ,(make-type 'builtin 1 #f))
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("void" . ,(make-type 'void 1 #f))
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;; FIXME sign
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("unsigned char" . ,(make-type 'builtin 1 #f))
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("unsigned short" . ,(make-type 'builtin 2 #f))
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("unsigned short int" . ,(make-type 'builtin 2 #f))
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("unsigned" . ,(make-type 'builtin 4 #f))
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("unsigned int" . ,(make-type 'builtin 4 #f))
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("unsigned long" . ,(make-type 'builtin 4 #f))
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("unsigned char" . ,(make-type 'unsigned 1 #f))
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("unsigned short" . ,(make-type 'unsigned 2 #f))
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("unsigned short int" . ,(make-type 'unsigned 2 #f))
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("unsigned" . ,(make-type 'unsigned 4 #f))
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("unsigned int" . ,(make-type 'unsigned 4 #f))
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("unsigned long" . ,(make-type 'unsigned 4 #f))
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;; ("unsigned long long" . ,(make-type 'builtin 8 #f))
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;; ("unsigned long long int" . ,(make-type 'builtin 8 #f))
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("unsigned long long" . ,(make-type 'builtin 4 #f)) ;; FIXME
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("unsigned long long int" . ,(make-type 'builtin 4 #f))
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("unsigned long long" . ,(make-type 'unsigned 4 #f)) ;; FIXME
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("unsigned long long int" . ,(make-type 'unsigned 4 #f))
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("float" . ,(make-type 'builtin 4 #f))
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("double" . ,(make-type 'builtin 8 #f))
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("long double" . ,(make-type 'builtin 16 #f))))
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("float" . ,(make-type 'float 4 #f))
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("double" . ,(make-type 'float 8 #f))
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("long double" . ,(make-type 'float 16 #f))))
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(define (signed? o)
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(eq? ((compose type:type ->type) o) 'signed))
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(define (unsigned? o)
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(eq? ((compose type:type ->type) o) 'unsigned))
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(define (->size o)
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(cond ((and (type? o) (eq? (type:type o) 'union))
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(apply max (map (compose ->size cdr) (struct->fields o))))
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((type? o) (type:size o))
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((pointer? o) %pointer-size)
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((c-array? o) (* (c-array:count o) ((compose ->size c-array:type) o)))
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((local? o) ((compose ->size local:type) o))
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((global? o) ((compose ->size global:type) o))
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((bit-field? o) ((compose ->size bit-field:type) o))
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((and (pair? o) (pair? (car o)) (bit-field? (cdar o))) ((compose ->size cdar) o))
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;; FIXME
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;; (#t
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;; (stderr "o=~s\n" o)
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;; (format (current-error-port) "->size: not a <type>: ~s\n" o)
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;; 4)
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(else (error "->size>: not a <type>:" o))))
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(define (ast->type o info)
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(define (type-helper o info)
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@ -617,11 +640,8 @@
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(let* ((type (local:type o)))
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(cond ((or (c-array? type)
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(structured-type? type)) (wrap-as (i386:local-ptr->accu (local:id o))))
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(else (let ((size (->size o)))
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(wrap-as (case size
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((1) (i386:byte-local->accu (local:id o)))
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((2) (i386:word-local->accu (local:id o)))
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(else (i386:local->accu (local:id o))))))))))
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(else (append (wrap-as (i386:local->accu (local:id o)))
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(convert-accu type))))))
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(define (global->accu o)
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(let ((type (global:type o)))
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@ -663,15 +683,7 @@
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(wrap-as (i386:value->accu v)))
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(define (accu->local+n-text local n)
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(let* ((type (local:type local))
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(ptr (->rank local))
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(size (if (= ptr -1) ((compose type:size local:type) local)
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4))
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(id (local:id local)))
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(wrap-as (case size
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((1) (i386:byte-accu->local+n id n))
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((2) (i386:word-accu->local+n id n))
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(else (i386:accu->local+n id n))))))
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(let ((id (local:id local))) (wrap-as (i386:accu->local+n id n))))
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(define (accu->ident info)
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(lambda (o)
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@ -1002,12 +1014,8 @@
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((array-ref ,index ,array)
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(let* ((info (expr->accu* o info))
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(size (ast->size o info)))
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(append-text info (wrap-as (case size
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((1) (i386:byte-mem->accu))
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((2) (i386:word-mem->accu))
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((4) (i386:mem->accu))
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(else '()))))))
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(type (ast->type o info)))
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(append-text info (mem->accu type))))
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((d-sel ,field ,struct)
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(let* ((info (expr->accu* o info))
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@ -1016,11 +1024,7 @@
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(size (->size type))
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(array? (c-array? type)))
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(if array? info
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(append-text info (wrap-as (case size
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((1) (i386:byte-mem->accu))
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((2) (i386:word-mem->accu))
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((4) (i386:mem->accu))
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(else '())))))))
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(append-text info (mem->accu type)))))
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((i-sel ,field ,struct)
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(let* ((info (expr->accu* o info))
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@ -1029,20 +1033,12 @@
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(size (->size type))
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(array? (c-array? type)))
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(if array? info
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(append-text info (wrap-as (case size
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((1) (i386:byte-mem->accu))
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((2) (i386:word-mem->accu))
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((4) (i386:mem->accu))
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(else '())))))))
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(append-text info (mem->accu type)))))
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((de-ref ,expr)
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(let* ((info (expr->accu expr info))
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(size (ast->size o info)))
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(append-text info (wrap-as (case size
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((1) (i386:byte-mem->accu))
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((2) (i386:word-mem->accu))
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((4) (i386:mem->accu))
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(else '()))))))
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(type (ast->type o info)))
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(append-text info (mem->accu type))))
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((fctn-call (p-expr (ident ,name)) (expr-list . ,expr-list))
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(if (equal? name "asm") (let ((arg0 (cadr (cadar expr-list)))) ;; FIXME
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@ -1252,7 +1248,9 @@
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info))
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((cast ,type ,expr)
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(expr->accu expr info))
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(let ((info (expr->accu expr info))
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(type (ast->type o info)))
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(append-text info (convert-accu type))))
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((assn-expr (de-ref (post-inc (p-expr (ident ,name)))) (op ,op) ,b)
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(let* ((info (expr->accu `(assn-expr (de-ref (p-expr (ident ,name))) (op ,op) ,b) info))
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@ -1349,6 +1347,28 @@
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(if (null? (.post info)) info
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(append-text (clone info #:post '()) (.post info))))))
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(define (mem->accu type)
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(let ((size (->size type)))
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(case size
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((1) (append (wrap-as (i386:byte-mem->accu)) (convert-accu type)))
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((2) (append (wrap-as (i386:word-mem->accu)) (convert-accu type)))
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((4) (wrap-as (i386:mem->accu)))
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(else '()))))
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(define (convert-accu type)
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(if (not (type? type)) '()
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(let ((sign (signed? type))
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(size (->size type)))
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(cond ((and (= size 1) sign)
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(wrap-as (i386:signed-byte-accu)))
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((= size 1)
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(wrap-as (i386:byte-accu)))
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((and (= size 2) sign)
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(wrap-as (i386:signed-word-accu)))
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((= size 1)
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(wrap-as (i386:word-accu)))
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(else '())))))
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(define (expr->base o info)
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(let* ((info (append-text info (wrap-as (i386:push-accu))))
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(info (expr->accu o info))
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@ -1548,23 +1568,6 @@
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decls))
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(_ (error "struct-field: not supported: " o)))))
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(define (->size o)
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(cond ((and (type? o) (eq? (type:type o) 'union))
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(apply max (map (compose ->size cdr) (struct->fields o))))
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((type? o) (type:size o))
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((pointer? o) %pointer-size)
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((c-array? o) (* (c-array:count o) ((compose ->size c-array:type) o)))
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((local? o) ((compose ->size local:type) o))
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((global? o) ((compose ->size global:type) o))
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((bit-field? o) ((compose ->size bit-field:type) o))
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((and (pair? o) (pair? (car o)) (bit-field? (cdar o))) ((compose ->size cdar) o))
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;; FIXME
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;; (#t
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;; (stderr "o=~s\n" o)
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;; (format (current-error-port) "->size: not a <type>: ~s\n" o)
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;; 4)
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(else (error "->size>: not a <type>:" o))))
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(define (local-var? o) ;; formals < 0, locals > 0
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(positive? (local:id o)))
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@ -226,8 +226,8 @@
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(define (->type o)
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(cond ((type? o) o)
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((bit-field? o) o)
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((pointer? o) (pointer:type o))
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((c-array? o) (c-array:type o))
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((pointer? o) ((compose ->type pointer:type) o))
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((c-array? o) ((compose ->type c-array:type) o))
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((and (pair? o) (eq? (car o) 'tag)) o)
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;; FIXME
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(#t
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@ -114,16 +114,6 @@
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`(,(if (< (abs n) #x80) `("mov____%eax,0x8(%ebp)" (#:immediate1 ,n))
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`("mov____%eax,0x32(%ebp)" (#:immediate ,n))))))
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(define (i386:byte-accu->local+n id n)
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(let ((n (+ (- 0 (* 4 id)) n)))
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`(,(if (< (abs n) #x80) `("mov____%al,0x8(%ebp)" (#:immediate1 ,n))
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`("mov____%al,0x32(%ebp)" (#:immediate ,n))))))
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(define (i386:word-accu->local+n id n)
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(let ((n (+ (- 0 (* 4 id)) n)))
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`(,(if (< (abs n) #x80) `("mov____%ax,0x8(%ebp)" (#:immediate1 ,n))
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`("mov____%ax,0x32(%ebp)" (#:immediate ,n))))))
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(define (i386:accu*n->local i n)
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(or n (error "invalid value: accu->local: " n))
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(let ((o (- 0 (* 4 i))))
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@ -156,18 +146,6 @@
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,(if (< (abs n) #x80) `("add____$i8,%eax" (#:immediate1 ,n))
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`("add____$i32,%eax" (#:immediate ,n))))))
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(define (i386:byte-local->accu n)
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(or n (error "invalid value: byte-local->accu: " n))
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(let ((n (- 0 (* 4 n))))
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`(,(if (< (abs n) #x80) `("movzbl_0x8(%ebp),%eax" (#:immediate1 ,n))
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`("movzbl_0x32(%ebp),%eax" (#:immediate ,n))))))
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(define (i386:word-local->accu n)
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(or n (error "invalid value: word-local->accu: " n))
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(let ((n (- 0 (* 4 n))))
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`(,(if (< (abs n) #x80) `("movzwl_0x8(%ebp),%eax" (#:immediate1 ,n))
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`("movzwl_0x32(%ebp),%eax" (#:immediate ,n))))))
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(define (i386:byte-local->base n)
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(or n (error "invalid value: byte-local->base: " n))
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(let ((n (- 0 (* 4 n))))
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@ -542,3 +520,15 @@
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(define (i386:accu<->stack)
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'(("xchg___%eax,(%esp)"))) ; xchg %eax,(%esp)
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(define (i386:byte-accu)
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'(("movzbl_%al,%eax")))
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(define (i386:signed-byte-accu)
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'(("movsbl_%al,%eax")))
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(define (i386:word-accu)
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'(("movzwl_%ax,%eax")))
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(define (i386:signed-word-accu)
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'(("movswl_%ax,%eax")))
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@ -45,8 +45,6 @@
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i386:accu->label
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i386:accu->local
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i386:accu->local+n
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i386:byte-accu->local+n
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i386:word-accu->local+n
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i386:accu->local+n
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i386:accu-and
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i386:accu-and-base
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@ -81,8 +79,6 @@
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i386:byte-base->accu-mem+n
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i386:byte-base-mem->accu
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i386:byte-base-sub
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i386:byte-local->accu
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i386:word-local->accu
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i386:byte-local->base
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i386:byte-mem->accu
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i386:word-mem->accu
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@ -153,6 +149,10 @@
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i386:l?->accu
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i386:le?->accu
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i386:z->accu
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i386:byte-accu
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i386:signed-byte-accu
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i386:word-accu
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i386:signed-word-accu
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))
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(cond-expand
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@ -0,0 +1,104 @@
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/* -*-comment-start: "//";comment-end:""-*-
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* Mes --- Maxwell Equations of Software
|
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* Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
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*
|
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* This file is part of Mes.
|
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*
|
||||
* 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/>.
|
||||
*/
|
||||
|
||||
char global_c = -1;
|
||||
struct foo {char type;};
|
||||
int
|
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main ()
|
||||
{
|
||||
{
|
||||
char c = -1;
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int i = c;
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||||
if (i != -1)
|
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return 1;
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}
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||||
|
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{
|
||||
int i = global_c;
|
||||
if (i != -1)
|
||||
return 2;
|
||||
}
|
||||
|
||||
{
|
||||
char c = -1;
|
||||
int ints[2] = {c, 0};
|
||||
if (ints[0] != -1)
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return 3;
|
||||
}
|
||||
|
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{
|
||||
char c = -1;
|
||||
int i = c;
|
||||
if (i != -1)
|
||||
return 4;
|
||||
}
|
||||
|
||||
{
|
||||
char c = -1;
|
||||
int i = c;
|
||||
if (i != -1)
|
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return 5;
|
||||
}
|
||||
|
||||
{
|
||||
char a[2] = {-1, -129};
|
||||
int i = a[0];
|
||||
if (i != -1)
|
||||
return 6;
|
||||
if (a[0] != -1)
|
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return 7;
|
||||
}
|
||||
|
||||
{
|
||||
struct foo f = {-1};
|
||||
int i = f.type;
|
||||
if (i != -1)
|
||||
return 8;
|
||||
|
||||
struct foo *g = &f;
|
||||
i = g->type;
|
||||
if (i != -1)
|
||||
return 9;
|
||||
}
|
||||
|
||||
{
|
||||
char c = -1;
|
||||
char *p = &c;
|
||||
int i = *p;
|
||||
if (i != -1)
|
||||
return 10;
|
||||
}
|
||||
|
||||
{
|
||||
int i = -129;
|
||||
i = (char)i;
|
||||
if (i != 127)
|
||||
return 11;
|
||||
}
|
||||
|
||||
{
|
||||
unsigned char b = -129;
|
||||
int i = b;
|
||||
if (i != 127)
|
||||
return 12;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -79,13 +79,9 @@ DEFINE mov____$i32,0x32 c705
|
|||
DEFINE mov____$i32,0x8(%eax) c740
|
||||
DEFINE mov____$i32,0x8(%ebp) c745
|
||||
DEFINE mov____%al,(%edx) 8802
|
||||
DEFINE mov____%al,0x32(%ebp) 8885
|
||||
DEFINE mov____%al,0x8(%ebp) 8845
|
||||
DEFINE mov____%al,0x8(%edx) 8842
|
||||
DEFINE mov____%ax,(%edx) 668902
|
||||
DEFINE mov____%ax,0x32(%ebp) 668985
|
||||
DEFINE mov____%ax,0x32(%edx) 668982
|
||||
DEFINE mov____%ax,0x8(%ebp) 668945
|
||||
DEFINE mov____%ax,0x8(%edx) 668942
|
||||
DEFINE mov____%dl,(%eax) 8810
|
||||
DEFINE mov____%dl,0x8(%eax) 8850
|
||||
|
|
@ -141,21 +137,22 @@ DEFINE mov____0x8(%ebp),%ebx 8b5d
|
|||
DEFINE mov____0x8(%ebp),%ecx 8b4d
|
||||
DEFINE mov____0x8(%ebp),%edx 8b55
|
||||
DEFINE mov____0x8(%ebp),%esp 8b65
|
||||
DEFINE movsbl_%al,%eax 0fbec0
|
||||
DEFINE movswl_%ax,%eax 0fbfc0
|
||||
DEFINE movzbl_%al,%eax 0fb6c0
|
||||
DEFINE movzbl_%al,%eax 0fb6c0
|
||||
DEFINE movzbl_%dl,%edx 0fb6d2
|
||||
DEFINE movzbl_(%eax),%eax 0fb600
|
||||
DEFINE movzbl_(%eax),%edx 0fb610
|
||||
DEFINE movzbl_(%edx),%edx 0fb612
|
||||
DEFINE movzbl_0x32(%eax),%eax 0fb680
|
||||
DEFINE movzbl_0x32(%ebp),%eax 0fb685
|
||||
DEFINE movzbl_0x8(%eax),%eax 0fb640
|
||||
DEFINE movzbl_0x8(%ebp),%eax 0fb645
|
||||
DEFINE movzbl_0x8(%ebp),%edx 0fb655
|
||||
DEFINE movzwl_%ax,%eax 0fb7c0
|
||||
DEFINE movzwl_(%eax),%eax 0fb700
|
||||
DEFINE movzwl_0x32(%eax),%eax 0fb780
|
||||
DEFINE movzwl_0x32(%ebp),%eax 0fb785
|
||||
DEFINE movzwl_0x8(%eax),%eax 0fb740
|
||||
DEFINE movzwl_0x8(%ebp),%eax 0fb745
|
||||
DEFINE mul____%edx f7e2
|
||||
DEFINE nop 90
|
||||
DEFINE not____%eax f7d0
|
||||
|
|
@ -199,6 +196,16 @@ DEFINE xor____%ecx,%ecx 31c9
|
|||
DEFINE xor____%edx,%eax 31d0
|
||||
DEFINE xor____%edx,%edx 31d2
|
||||
|
||||
# Deprecated. Remove after 0.14 release.
|
||||
DEFINE mov____%al,0x32(%ebp) 8885
|
||||
DEFINE mov____%al,0x8(%ebp) 8845
|
||||
DEFINE mov____%ax,0x32(%ebp) 668985
|
||||
DEFINE mov____%ax,0x8(%ebp) 668945
|
||||
DEFINE movzbl_0x32(%ebp),%eax 0fb685
|
||||
DEFINE movzbl_0x8(%ebp),%edx 0fb655
|
||||
DEFINE movzwl_0x8(%ebp),%eax 0fb745
|
||||
DEFINE movzwl_0x8(%ebp),%eax 0fb745
|
||||
|
||||
DEFINE SYS_exit 01000000
|
||||
DEFINE SYS_read 03000000
|
||||
DEFINE SYS_write 04000000
|
||||
|
|
|
|||
Loading…
Reference in New Issue