X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=ROM2%2Fhelpers.c;h=a35073cf5ca7400a177f08ff1e9127238fcfe7b5;hb=59ddc1de7a960375ef639e2bf7c69229752324ac;hp=283ca30a37531b355a050157cfa5b261c9fe87f8;hpb=4f35424978e202fff48c2331eee9fd01e3da244f;p=uccvend-snackrom.git

diff --git a/ROM2/helpers.c b/ROM2/helpers.c
index 283ca30..a35073c 100644
--- a/ROM2/helpers.c
+++ b/ROM2/helpers.c
@@ -1,45 +1,32 @@
+#include "display_basic.h"
 #include "vend.h"
 
-/* some IO addresses require buffering, so we create some generic buffering
- * functions here
- */
-
-/* create port-specific #defines: */
-#define buffered_port(p) \
-	u8   addr_##p##_buffer = 0; \
-	\
-	void __inline__ outb_##p(u8 b) { \
-		addr_##p##_buffer = b; \
-		outb(p, b); \
-	} \
-	\
-	void __inline__ bset_##p(u8 mask) { \
-		bset((addr_t)&addr_##p##_buffer, mask); \
-		outb(p, addr_##p##_buffer); \
-	} \
-	\
-	void __inline__ bclr_##p(u8 mask) { \
-		bclr((addr_t)&addr_##p##_buffer, mask); \
-		outb(p, addr_##p##_buffer); \
-	} 
-
-void __inline__ outb(addr_t addr, u8 byte) {
-	/* FIXME hmmm */
-	/* asm? */
+#define DELAY_MAGIC 20 /* FIXME: number of loops for ~ 1 millisecond (< 256) */
+void delay(u16 ms) {
+	u8 i;
+	for (;ms;ms--) {
+		for (i=0;i<DELAY_MAGIC; i++)
+			asm("nop\nnop\nnop\nnop\nnop\n");
+	}
 }
 
-void __inline__ bset(addr_t addr, u8 mask) {
-	/* FIXME again. asm? */
+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);
 }
 
-void __inline__ bclr(addr_t addr, u8 mask) {
-	/* FIXME again. asm? */
+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 delay(u16 ms) {
-	/* FIXME fill me in */
+void my_memcpy(char* dst, char* src, u8 size) {
+	u8 i = 0;
+	for (i = 0; i < size; i++) dst[i] = src[i];
 }
-
-/* ports declared here must be defined with buffered_port_h() in vend.h too */
-buffered_port(3800);
-