UART code for a 16550.

[uccvend-snackrom.git] / ROM2 / helpers.c

diff --git a/ROM2/helpers.c b/ROM2/helpers.c
index 0f9f4db..a35073c 100644 (file)
--- a/ROM2/helpers.c
+++ b/ROM2/helpers.c
@@ -19,3 +19,14 @@ void print_amount(u16 amt) {
        }
        set_msg(str);
 }
+
+void my_strncpy(char* dst, char* src, u8 max_size) {
+       u8 i;
+       for (i = 0; src[i] && i < max_size; i++) dst[i] = src[i];
+       if (src[i] == 0 && i < max_size) dst[i] = 0; /* null terminator */
+}
+
+void my_memcpy(char* dst, char* src, u8 size) {
+       u8 i = 0;
+       for (i = 0; i < size; i++) dst[i] = src[i];
+}