- initial import

git-svn-id: http://moon:8086/svn/mips@1 a8ebac50-d88d-4704-bea3-6648445a41b3
2014-07-20 15:01:37 +00:00
commit 26291bca3d
1549 changed files with 3997969 additions and 0 deletions
@@ -0,0 +1,45 @@
+#include "libsys.h"
+#include "gpio.h"
+
+int uncached_cachemiss_bug(UINT32* pMem)
+{
+	UINT32 result;
+
+	pMem[0] = 0x12345678;
+	pMem[1] = 0xFFFFFFFF;
+
+	DCACHE_invalidate_all();
+
+	__asm__
+	(
+		"lui    $s0, 0xA000\n"
+		"lw     $a0, 32($s0)\n"
+		"or		$s1, $a0, $0\n"
+		"or		$a2, $0, $0\n"
+		"addiu	$a2, 1\n"
+		"sw     $a2, 32($s0)\n"
+//		"lw     $a1, 0(%[pMem])\n"
+		"lw     $a0, 32($s0)\n"
+		"lw     $a2, 4(%[pMem])\n"
+		"lw     $a1, 0(%[pMem])\n"
+		"nop\n"
+		"sw     $s1, 8($s0)\n"
+		"or		%[val], $a0, $0\n"
+		: [val] "=r" (result)
+		: [pMem] "r" (pMem)
+		: "a0", "a1", "a2", "s0", "s1"
+	);
+	return result;
+}
+
+int main()
+{
+	UINT32 volatile *pLed = (UINT32*)SYS_GPIO_0_BASE;
+	int buf[256], res;
+
+	res = uncached_cachemiss_bug(buf);
+	*pLed = res;
+
+	return res;
+
+}