1 files changed, 71 insertions, 0 deletions
diff --git a/util/romcc/tests/simple_test34.c b/util/romcc/tests/simple_test34.c
new file mode 100644
index 0000000000..3c2b606fc2
--- /dev/null
+++ b/util/romcc/tests/simple_test34.c
@@ -0,0 +1,71 @@
+
+typedef __builtin_msr_t msr_t;
+
+static msr_t rdmsr(unsigned long index)
+{
+        return __builtin_rdmsr(index);
+}
+
+static void uart_tx_byte(unsigned char data)
+{
+	while(!(__builtin_inb(0x3f8 + 0x05) & 0x20))
+		;
+        __builtin_outb(data, 0x3f8 + 0x00);
+
+        while(!(__builtin_inb(0x3f8 + 0x05) & 0x40))
+                ;
+}
+
+
+static void print_nibble(unsigned nibble)
+{
+	unsigned char digit;
+	digit = nibble + '0';
+	if (digit > '9') {
+		digit += 39;
+	}
+	uart_tx_byte(digit);
+}
+
+static void print_debug_hex32(unsigned int value)
+{
+	print_nibble((value >> 28U) & 0x0fU);
+	print_nibble((value >> 24U) & 0x0fU);
+	print_nibble((value >> 20U) & 0x0fU);
+	print_nibble((value >> 16U) & 0x0fU);
+	print_nibble((value >> 12U) & 0x0fU);
+	print_nibble((value >> 8U) & 0x0fU);
+	print_nibble((value >> 4U) & 0x0fU);
+	print_nibble(value & 0x0fU);
+}
+
+static void print_debug(const char *str)
+{
+	unsigned char ch;
+	while((ch = *str++) != '\0') {
+		uart_tx_byte(ch);
+	}
+}
+
+static void main(void)
+{
+	unsigned long start, stop;
+	msr_t msr;
+	msr = rdmsr(0xC001001A);
+	print_debug("TOP_MEM: ");
+	print_debug_hex32(msr.hi);
+	print_debug_hex32(msr.lo);
+	print_debug("\r\n");
+
+	start = 0;
+	stop = msr.lo;
+        print_debug("Testing DRAM : ");
+        print_debug_hex32(start);
+        print_debug("-");
+        print_debug_hex32(stop);
+        print_debug("\r\n");
+
+        print_debug("DRAM verify: ");
+        print_debug_hex32(start);
+        print_debug_hex32(stop);
+}