Changes between Version 1 and Version 2 of Sperimentazione 8

Timestamp:

May 12, 2011, 5:08:24 PM (14 years ago)

Author:

Mattia Monga

Comment:

--

Sperimentazione 8

@@ -1 @@
-== Creazione di una system call gestita da PM ==
+== Assembly MINIX ==
+
+ * Minix assembly (man 9 as)
 
 
-* aggiunta della syscall {{{foo}}} diff:tags/minix-3.1.2a//tags/syscall-add-simple-foo
-   [[IncludeSource(tags/syscall-add-simple-foo/test/testfoo.c, line_numbers=0)]]
-   * aggiunta della syscall {{{foo}}} con un parametro intero diff:tags/syscall-add-simple-foo//tags/syscall-add-foo-with-arg
-   [[IncludeSource(tags/syscall-add-foo-with-arg/test/testfoo.c, line_numbers=0)]]
+{{{
+#!asm
+.sect .text; .sect .rom; .sect .data; .sect .bss;
+.define _main
+.extern _printf, _scanf, exit
+.sect .text
+_main:
+    push ebp
+    mov ebp, esp
+
+    push x
+    push fmt
+    call _scanf
+    pop ecx
+    pop ecx
+   
+    push (x)
+    call quad
+    pop ecx
+
+
+    push eax 
+    push s
+    call _printf
+    pop ecx
+    poecx   
+
+    push 0
+    call _exit
+
+
+    mov esp, ebp
+    pop ebp
+    ret
+
+
+quad: push ebp
+      mov ebp, esp
+
+      mov eax, 8(ebp)
+      imul eax, eax      
+
+      mov esp, ebp
+      pop ebp
+      ret
+
+
+.sect .data
+
+x: .data4 0
+
+.sect .rom
+s: .asciz "Il risultato: %d\n"
+fmt: .asciz "%d"
+}}}
+
+ * messaggi in Minix
+
+{{{
+#!c
+#include <ansi.h>
+#include <minix/com.h>
+#include <minix/ipc.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <alloca.h>
+
+int send(int, message*);
+
+
+int main(void){
+
+    message msg;       
+    msg.m_source = 0;
+    msg.m_type = M1;
+    msg.m1_i1 = 42;
+     
+
+    send(ANY, &msg);     
+    return 0;
+}
+}}}
+
+
+
+