From 37ceff93572bba6defd916884999c496108220ee Mon Sep 17 00:00:00 2001
From: Michal Idziorek <m.i@gmx.at>
Date: Mon, 20 Oct 2014 20:51:01 +0200
Subject: started porting simple brainfuck interpreter

---
 userspace/test.c | 81 +-------------------------------------------------------
 1 file changed, 1 insertion(+), 80 deletions(-)

(limited to 'userspace/test.c')

diff --git a/userspace/test.c b/userspace/test.c
index bdc6da0..12226d3 100644
--- a/userspace/test.c
+++ b/userspace/test.c
@@ -1,86 +1,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 
-
-//printf needs following syscalls: sbrk write close fstat isatty lseek read
-//
-
-#include <sys/stat.h>
-
-int close(int file) 
-{
-   return -1;
-}
-
-int fstat(int file, struct stat *st)
-{
-    st->st_mode = S_IFCHR;
-    return 0;
-}
-
-int isatty(int file) {
-    return 1;
-}
-
-int lseek(int file, int ptr, int dir) {
-    return 0;
-}
-
-int read(int file, char *ptr, int len) {
-    return 0;
-}
-
-int write(int file, char *ptr, int len) 
-{
-
-    int todo;
-    for (todo = 0; todo < len; todo++) 
-    {
-
-	char byte=(*ptr++);
-        int byt=byte;
-
-	int ebx; // will hold return value;
-	// system call 
-	asm("pusha");
-	asm("mov $61,%eax"); // select syscall)
-
-	asm("mov %0,%%edx"::"m"(byt));
-	//asm("mov $88,%edx");
-
-	asm("int $0x80"); // actual syscall ! interrupt
-        asm("mov %%ebx, %0": "=b" (ebx));
-	asm("popa");
-	//
-	
-    }
-    return len;
-}
-
-caddr_t sbrk(int incr) 
-{
-	    
-//            extern char _end;		/* Defined by the linker */
-	    char _end;
-            static char *heap_end;
-            char *prev_heap_end;
-          
-            if (heap_end == 0) {
-              heap_end = &_end;
-            }
-            prev_heap_end = heap_end;
-	    /*
-            if (heap_end + incr > stack_ptr) {
-              write (1, "Heap and stack collision\n", 25);
-              abort ();
-            }
-	    */
-          
-            heap_end += incr;
-            return (caddr_t) prev_heap_end;
-}
-
-//
+#include "syscalls.h>
 
 int main()
 {
-- 
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