X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=ROM2%2Fvend.h;h=5d4f5ac9931a20064f73e973e7c5575e3f58640b;hb=24f4e50d8f5671b40d2662bbcd50e3859bcd5205;hp=7686620d675bcc313965e7779c30d20ebfb1856f;hpb=db71d9706715bf39fa5c5696108019bacd8181fa;p=uccvend-snackrom.git

diff --git a/ROM2/vend.h b/ROM2/vend.h
index 7686620..5d4f5ac 100644
--- a/ROM2/vend.h
+++ b/ROM2/vend.h
@@ -27,8 +27,19 @@ extern volatile u8 _home_sensors;
 #define home_sensors _home_sensors
 
 #define is_standalone() (misc_input & 0x01) /* DIP sw 1 */
+#define must_verify()   !(misc_input & 0x02) /* DIP sw 2 */
 
 extern u16 _stack;
+extern char _nvram[]; /* 2048 bytes of nvram! */
+// uncomment for testing. char _nvram[20]; /* 2048 bytes of nvram! */
+/* NVRAM map:
+ *
+ * START LEN
+ * 0x800 0x02  mic.h - current challenge
+ * 0x802 0x10  mic.h - current secret password
+ * 0x812
+ *
+ */
 
 /******* from helpers.c *******/
 void delay(u16 ms);
@@ -36,6 +47,10 @@ void my_strncpy(char* dst, char* src, u8 max_size); /* for null-term strings */
 bool my_strncmp(char* a, char* b, u8 len);
 void my_memcpy(char* dst, char* src, u8 size);
 void my_memset(char* dst, u8 val, u16 count);
+char* u82hex(u8 a);
+u8 hex2u8(char msb, char lsb);
+char nibble2hexchar(u8 b);
+u8 hexchar2u8(char b);
 
 /******** Some meaningful bits ******/
 #define PORTA_CHIME         0x10 /* chime is on when set */