initial commit, resurrect one of my realy old projects

1 files changed, 39 insertions, 0 deletions

diff --git a/x86cpuid.c b/x86cpuid.c
new file mode 100644
index 0000000..7cdd87b
--- /dev/null
+++ b/x86cpuid.c
@@ -0,0 +1,39 @@
+#include <signal.h>
+
+void nope()
+{
+	exit(1);
+}
+
+int main()
+{
+	unsigned long x[4];
+	unsigned long y[4];
+	int i;
+	int j;
+	char c;
+	
+	signal(SIGILL,nope);
+	
+	x[0] = 0;
+	x[1] = 0;
+	x[2] = 0;
+	x[3] = 0;
+
+	asm volatile(".byte 15;.byte 162" : "=a"(x[0]),"=b"(x[1]),"=c"(x[3]),"=d"(x[2]) : "0"(0) );
+	if (!x[0]) return 0;
+	asm volatile(".byte 15;.byte 162" : "=a"(y[0]),"=b"(y[1]),"=c"(y[2]),"=d"(y[3]) : "0"(1) );
+
+	for (i = 1;i < 4;++i){
+		for (j = 0;j < 4;++j) {
+			c = x[i] >> (8 * j);
+			if (c < 32) c = 32;
+			if (c > 126) c = 126;
+			putchar(c);
+		}
+	}
+	
+	printf("-%08x-%08x\n",y[0],y[3]);
+	
+	return 0;
+}