X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;ds=sidebyside;f=ROM2%2Fhelpers.c;h=0f9f4dbf06ae27f86b25b2ac02c18ddac8c12c36;hb=5266fabbd6d0e04a49e31b945b3f3c96fbd12db6;hp=07ab7f4da859c3a5803b36b9ad853f2b07017a42;hpb=cef1445c4f1ebaa38f9e6561b4fd15f164a27dcd;p=uccvend-snackrom.git

diff --git a/ROM2/helpers.c b/ROM2/helpers.c
index 07ab7f4..0f9f4db 100644
--- a/ROM2/helpers.c
+++ b/ROM2/helpers.c
@@ -1,11 +1,21 @@
+#include "display_basic.h"
 #include "vend.h"
 
-#define DELAY_MAGIC 20 /* FIXME: number of loops required for ~ 1 millisecond */
+#define DELAY_MAGIC 20 /* FIXME: number of loops for ~ 1 millisecond (< 256) */
 void delay(u16 ms) {
-	int i;
+	u8 i;
 	for (;ms;ms--) {
 		for (i=0;i<DELAY_MAGIC; i++)
 			asm("nop\nnop\nnop\nnop\nnop\n");
 	}
 }
 
+void print_amount(u16 amt) {
+	/* take amt and show it on screen with a $ sign */
+	char str[10] = {' ', '$', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
+	u8 pos;
+	for (pos = 7; amt; pos--, amt/=10) {
+		str[pos] = amt%10 + '0';
+	}
+	set_msg(str);
+}