diff --git a/arch/linux/tui/main.c b/arch/linux/tui/main.c
index 42aba91..7be250f 100644
--- a/arch/linux/tui/main.c
+++ b/arch/linux/tui/main.c
@@ -18,8 +18,8 @@ bool init_vm() {
   return true;
 }
 
-u32 syscall(u32 id, u32 size, u32 mem_ptr) {
-  USED(size);
+u32 syscall(u32 id, u32 device, u32 mem_ptr) {
+  USED(device);
   switch(id) {
     case SYSCALL_CONSOLE_WRITE: {
       u32 size = *(u32*)&mem[mem_ptr];
@@ -30,6 +30,7 @@ u32 syscall(u32 id, u32 size, u32 mem_ptr) {
       return 0;
     }
     case SYSCALL_CONSOLE_READ: {
+      u32 size;
       u8 *ptr = &mem[mp];
       mcpy(ptr, &size, sizeof(u32));
       ptr += 4;
diff --git a/vm/vm.c b/vm/vm.c
index b6f46da..e371ceb 100644
--- a/vm/vm.c
+++ b/vm/vm.c
@@ -608,7 +608,7 @@ bool step_vm() {
     
     u32 i = 0, j = 0;
     i32 q = (i32)locals[src1];
-    char buffer[MAX_LEN_INT32];
+    char buffer[12];
     u32 int_part, frac_part;
 
     if (q < 0) {
@@ -641,7 +641,7 @@ bool step_vm() {
       frac_part &= 0xFFFF;           
     }
 
-    locals[dest] = str_alloc(buffer + i, MAX_LEN_INT32 - i);
+    locals[dest] = str_alloc(buffer + i, 12 - i);
     
     return pc;
   }
diff --git a/vm/vm.h b/vm/vm.h
index d7d797e..18e50d7 100644
--- a/vm/vm.h
+++ b/vm/vm.h
@@ -32,7 +32,7 @@ typedef enum {
   OP_HALT,           /* halt                 : A : all zeros         : halt execution */
   OP_CALL,           /* call                 : A : dest args return  : creates a new frame */  
   OP_RETURN,         /* return               : B : dest return_flags : returns from a frame to the parent frame */
-  OP_SYSCALL,        /* syscall              : A : id args mem_ptr   : does a system call based on id with args  */
+  OP_SYSCALL,        /* syscall              : A : id device mem_ptr : does a system call based on id with args  */
   OP_LOAD_IMM,       /* load_immediate       : B : locals[dest] = const as u16 */
   OP_LOAD_UPPER_IMM, /* load_upper_immediate : B : locals[dest] = const as u32 << 16 | u16 */
   OP_LOAD_IND_8,     /* load_indirect_8      : A : locals[dest] = memory[locals[src1]] as u8  */