diff --git a/cpu/i386/address_spaces.c b/cpu/i386/address_spaces.c
index 8b4f420..cc087b9 100644
--- a/cpu/i386/address_spaces.c
+++ b/cpu/i386/address_spaces.c
@@ -8,3 +8,14 @@ void address_spaces_copy_data(void* cr3, void* data,uint32_t size,void* virt_add
   map_pages(virt_addr,phys_addr,(size/4096)+1,1,1);
   load_address_space(old_cr3);
 }
+
+void* address_spaces_put_data(void* cr3, void* data,uint32_t size) {
+  uint32_t old_cr3;
+  asm volatile("movl %%cr3, %%eax; movl %%eax, %0;":"=m"(old_cr3)::"%eax");
+  void* phys_addr=virt_to_phys(data);
+  load_address_space((uint32_t)cr3);
+  void* virt_addr=find_free_pages((size/4096)+1)<<12;
+  map_pages(virt_addr,phys_addr,(size/4096)+1,1,1);
+  load_address_space(old_cr3);
+  return virt_addr;
+}
diff --git a/cpu/i386/address_spaces.h b/cpu/i386/address_spaces.h
index 3876137..d27158a 100644
--- a/cpu/i386/address_spaces.h
+++ b/cpu/i386/address_spaces.h
@@ -4,5 +4,5 @@
 #include <stdint.h>
 
 void address_spaces_copy_data(void* cr3, void* data,uint32_t size,void* virt_addr);
-
+void* address_spaces_put_data(void* cr3, void* data,uint32_t size);
 #endif
diff --git a/cpu/i386/isr.c b/cpu/i386/isr.c
index 57818a6..acf066c 100644
--- a/cpu/i386/isr.c
+++ b/cpu/i386/isr.c
@@ -206,6 +206,8 @@ void isr_handler(registers_t r) {
         r.ebx=virt_addr;
       } else if (r.eax=12) {
         tasking_createTaskCr3KmodeParam((void*)r.ebx,(void*)r.ecx,0,1,r.edx,1,r.esi);
+      } else if (r.eax=13) {
+        r.ebx=(uint32_t)address_spaces_put_data((void*)r.ebx,(void*)r.ecx,r.edx);
       }
     break;
     }
diff --git a/libc/memory.c b/libc/memory.c
index c5eb917..8ebdc8e 100644
--- a/libc/memory.c
+++ b/libc/memory.c
@@ -30,12 +30,15 @@ void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr) {
     mov $10, %%eax; \
     int $80; \
   "::"b"(cr3),"c"(data),"d"(size),"S"(virt_addr));
-  // uint32_t old_cr3;
-  // asm volatile("movl %%cr3, %%eax; movl %%eax, %0;":"=m"(old_cr3)::"%eax");
-  // void* phys_addr=virt_to_phys(data);
-  // load_address_space(cr3);
-  // map_pages(virt_addr,phys_addr,(size/4096)+1,1,1);
-  // load_address_space(old_cr3);
+}
+
+void* put_data(void* cr3, void* data,uint32_t size) {
+  void* virt_addr;
+  asm volatile("  \
+    mov $10, %%eax; \
+    int $80; \
+  ":"=b"(virt_addr):"b"(cr3),"c"(data),"d"(size));
+  return virt_addr;
 }
 
 void* map_phys(void* phys_addr,uint32_t num_pages) {
diff --git a/libc/memory.h b/libc/memory.h
index 8499d01..02e6594 100644
--- a/libc/memory.h
+++ b/libc/memory.h
@@ -9,6 +9,7 @@ void* alloc_memory(uint32_t num_pages);
 void alloc_memory_virt(uint32_t num_pages,void* addr);
 void* new_address_space();
 void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr);
+void* put_data(void* cr3, void* data,uint32_t size);
 void* map_phys(void* phys_addr,uint32_t num_pages);
 
 #endif