Added cpu_clock_by_ic() function to measure cpu clock using instruction counting. Still not translated to MSVC, and isn't tested on CPUs other than Core i7 (but there it works beatifully). Bumped version to 0.1.3.

git-svn-id: https://svn.code.sf.net/p/libcpuid/code/HEAD/libcpuid@77 3b4be424-7ac5-41d7-8526-f4ddcb85d872

cpuid_tool/cpuid_tool.c

@@ -83,6 +83,7 @@ typedef enum {
 	NEED_CLOCK,
 	NEED_CLOCK_OS,
 	NEED_CLOCK_RDTSC,
+	NEED_CLOCK_IC,
 	NEED_RDMSR,
 } output_data_switch;
 
@@ -133,6 +134,7 @@ matchtable[] = {
 	{ NEED_CLOCK        , "--clock"        , 0},
 	{ NEED_CLOCK_OS     , "--clock-os"     , 0},
 	{ NEED_CLOCK_RDTSC  , "--clock-rdtsc"  , 1},
+	{ NEED_CLOCK_IC     , "--clock-ic"     , 1},
 	{ NEED_RDMSR        , "--rdmsr"        , 0},
 };
 
@@ -404,6 +406,9 @@ static void print_info(output_data_switch query, struct cpu_raw_data_t* raw,
 		case NEED_CLOCK_RDTSC:
 			fprintf(fout, "%d\n", cpu_clock_measure(400, 1));
 			break;
+		case NEED_CLOCK_IC:
+			fprintf(fout, "%d\n", cpu_clock_by_ic(25, 16));
+			break;
 		case NEED_RDMSR:
 		{
 			if ((handle = cpu_msr_driver_open()) == NULL) {