From a618be2a69a347128a4e29c879abf4a913421f52 Mon Sep 17 00:00:00 2001 From: Ashish Gupta Date: Wed, 5 Apr 2017 21:39:01 +0200 Subject: Add kolibrios/ dir : Step 1 towards porting this to Kolibri OS --- frontends/kolibrios/kolibri_debug.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 frontends/kolibrios/kolibri_debug.c (limited to 'frontends/kolibrios/kolibri_debug.c') diff --git a/frontends/kolibrios/kolibri_debug.c b/frontends/kolibrios/kolibri_debug.c new file mode 100644 index 000000000..5e97d40e0 --- /dev/null +++ b/frontends/kolibrios/kolibri_debug.c @@ -0,0 +1,28 @@ +#include "kolibrios/kolibri_debug.h" +#include + +/* Write a printf() like function (variable argument list) for + writing to debug board TODO*/ + +void debug_board_write_byte(const char ch){ + __asm__ __volatile__( + "int $0x40" + : + :"a"(63), "b"(1), "c"(ch)); +} + +void debug_board_write_str(const char* str){ + while(*str) + debug_board_write_byte(*str++); +} + +void debug_board_printf(const char *format,...) +{ + va_list ap; + char log_board[300]; + + va_start (ap, format); + vsprintf(log_board, format, ap); + va_end(ap); + debug_board_write_str(log_board); +} -- cgit v1.2.3