use nice drawing characters and two-column layout

[c128-kasse] / include / general.h

diff --git a/include/general.h b/include/general.h
index 7fb133846fe923bbb76a08a89a8874bc2ddb1852..3c76062c6d78de4ebc3f2c6f2393c6018457e7b1 100644 (file)
--- a/include/general.h
+++ b/include/general.h
@@ -2,11 +2,24 @@
 #define GENERAL_H_
 typedef unsigned char BYTE;
 char *get_input();
-char * format_euro(char * s, int maxlen, int cent);
+char retry_or_quit();
+char *format_euro(char * s, int maxlen, int cent);
 void c128_perror(BYTE, char*);
 extern BYTE _oserror;
 #define POKE(addr,val)     (*(unsigned char*) (addr) = (val))
 #define POKEW(addr,val)    (*(unsigned*) (addr) = (val))
 #define PEEK(addr)         (*(unsigned char*) (addr))
 #define PEEKW(addr)        (*(unsigned*) (addr))
+
+#define VIDEOMODE (((* (BYTE *)0xD7) == 0x80) ? 80 : 40)
+
+/* because there is no macro expansion when stringifying, we need to use two
+ * levels of macros to stringify the value of a macro (for example
+ * MAX_ITEM_NAME_LENGTH) */
+#define xstr(s) str(s)
+#define str(s) #s
+
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#define min(a, b) ((a) > (b) ? (b) : (a))
+
 #endif /*GENERAL_H_*/