minor experiments

1 files changed, 16 insertions, 0 deletions

diff --git a/kernel/kernel.c b/kernel/kernel.c
index 7118706..a25ba83 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -36,6 +36,22 @@ void kernel_main()
     timer_init();
     scr_put_string_nl("Configured PIT Channel 0 : Mode 2 : 1/25 s.");
 
+    //probe memory
+    scr_put_string_nl("Probing core memory...");
+    char *prober=0xf000;
+
+    for(;prober<0xfffffff;prober+=0xf00)
+    {
+	*prober='x';
+	if(*prober!='x')break;
+    
+    }
+
+    //0xA5000
+    scr_put_hex((uint32_t)prober>>16);
+    scr_put_hex((uint32_t)prober&0xffff);
+    scr_put_string_nl(" finished!");
+
 
     // init and interrupt decriptor table 
     int_init(0x08);