diff --git a/common/uvm32_common_custom.h b/common/uvm32_common_custom.h
index 69760cc..82bb6f4 100644
--- a/common/uvm32_common_custom.h
+++ b/common/uvm32_common_custom.h
@@ -9,4 +9,6 @@
 #define UVM32_SYSCALL_PRINTHEX  0x00000005
 #define UVM32_SYSCALL_MILLIS    0x00000006
 #define UVM32_SYSCALL_PRINTBUF  0x00000007
+#define UVM32_SYSCALL_RENDER    0x00000008
+#define UVM32_SYSCALL_GETKEY    0x00000009
 
diff --git a/common/uvm32_target.h b/common/uvm32_target.h
index a5393df..90504b0 100644
--- a/common/uvm32_target.h
+++ b/common/uvm32_target.h
@@ -48,6 +48,8 @@ static uint32_t syscall(uint32_t id, uint32_t param1, uint32_t param2) {
 #define getc()          syscall_cast(UVM32_SYSCALL_GETC, 0, 0)
 #define yield(x)        syscall_cast(UVM32_SYSCALL_YIELD, x, 0)
 #define printbuf(x, y)  syscall_cast(UVM32_SYSCALL_PRINTBUF, x, y)
+#define render(x, y)    syscall_cast(UVM32_SYSCALL_RENDER, x, y)
+#define getkey()        syscall_cast(UVM32_SYSCALL_GETKEY, 0, 0)
 
 extern char _estack;