diff options
Diffstat (limited to 'usr/main.c')
-rw-r--r-- | usr/main.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/usr/main.c b/usr/main.c new file mode 100644 index 0000000..7091580 --- /dev/null +++ b/usr/main.c @@ -0,0 +1,32 @@ +#include <graphics/lfb.h> +#include <symbols.h> + +char* ulong_to_string(unsigned long value, char* data) +{ + unsigned long t = value; + unsigned long c; + char* dptr = data + 9; + for (int i = 0; i <= 10; i++) { + c = t%10; + *dptr = 0x30 + (c&0xF); + t /= 10; + if (t==0) + break; + dptr -= 1; + } + return dptr; +} + +void main(void) +{ + static char str[13]; + static unsigned long previous = 0; + char* start; + unsigned long current = *(volatile unsigned long*)SYS_TIMER_CHI; + start = ulong_to_string(current, str); + draw_string(0, 10, start); + start = ulong_to_string(current - previous, str); + draw_string(0, 11, " "); + draw_string(0, 11, start); + previous = current; +} |