Wrap lines when dumping big buffers

diff --git a/picoproj.c b/picoproj.c
index 197d5da..7e7cdd5 100644 (file)
--- a/picoproj.c
+++ b/picoproj.c
@@ -130,6 +130,11 @@ static void dump_header(struct header *h)
        fflush(stdout);
 }
 
+static inline unsigned int in_80chars(unsigned int i)
+{
+       return ((i+1) % (80/3));
+}
+
 static void dump_buffer(uint8_t *buffer, unsigned int len)
 {
        unsigned int i;
@@ -138,7 +143,7 @@ static void dump_buffer(uint8_t *buffer, unsigned int len)
                return;
 
        for (i = 0; i < len; i++) {
-               printf("%02hhX%c", buffer[i], (i < len - 1) ? ' ' : '\n');
+               printf("%02hhX%c", buffer[i], (in_80chars(i) && (i < len - 1)) ? ' ' : '\n');
        }
        fflush(stdout);
 }