io api rework

1 files changed, 3 insertions, 11 deletions

diff --git a/PL0_utils.c b/PL0_utils.c
index 2cede90..d83edb9 100644
--- a/PL0_utils.c
+++ b/PL0_utils.c
@@ -2,26 +2,18 @@
 #include <stdint.h>
 
 #include "svc_interface.h"
+#include "PL0_utils.h"
 
 // most generic definition possible
 // the actual function defined in svc.S
 uint32_t svc(enum svc_type, ...);
 
-void putchar(int character)
+void putchar(char character)
 {
   svc(UART_PUTCHAR, character);
 }
 
-int getchar(void)
+char getchar(void)
 {
   return svc(UART_GETCHAR);
 }
-
-void puts(char *string)
-{
-  for (size_t i = 0; string[i]; i++)
-    putchar(string[i]);
-
-  putchar('\n');
-  putchar('\r');
-}