Initial revision

Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@986 cc03376c-175c-47c8-b038-4cd826a8556b
2013-07-24 18:13:16 +00:00
parent e48ed8f595
commit cd2640e9c6
39 changed files with 7758 additions and 0 deletions
@@ -0,0 +1,134 @@
+//#include <stdio.h>
+#include <stdlib.h>
+//#include <string.h>
+
+#define	NUM_ELEMENTS	100
+#define	NUM_RUNS		1000
+
+char sein(void)
+{
+	volatile char *pUART_stat = (char*)0x80000008;
+	volatile char *pUART_data = (char*)0x80000004;
+
+	while(!(0x10 & *pUART_stat));
+
+	return *pUART_data;
+}
+
+void saus(char c)
+{
+	volatile char *pUART_stat = (char*)0x80000008;
+	volatile char *pUART_data = (char*)0x80000004;
+
+	while((0x02 & *pUART_stat) != 0);
+
+	*pUART_data = c;
+}
+
+int sputs(char *pStr)
+{
+	char *start;
+	start = pStr;
+
+	while(*pStr)
+		saus(*(pStr++));
+
+	return pStr - start;
+}
+
+void print_byte(char byte)
+{
+	int i;
+	unsigned char c, nibble;
+
+	for (i=0; i < 2; i++)
+	{
+		nibble = (char)((byte >> 4) & 0xF);
+		byte <<= 4;
+
+		if (nibble < 10)
+			c = nibble + '0';
+		else
+			c = nibble + 'A' - 10;
+
+		saus(c);
+	}
+}
+
+void print_word(int word)
+{
+	int i;
+	unsigned char c, nibble;
+
+	for (i=0; i < 4; i++)
+	{
+		c = (char) (word >> 24);
+		print_byte(c);
+		word <<= 8;
+	}
+}
+
+int main (void)
+{
+	int cnt, i, j;
+	int mix, *pReg = (int*)0x80000000;
+	volatile char *pUART_data = (char*)0x80000004;
+	volatile char *pUART_ctrl = (char*)0x80000008;
+	volatile char *pUART_baud = (char*)0x80000009;
+	char msg[] = "MIPS R3000 CPU\r\nMul/Div Test\r\n";
+	int s1, s2, sp, st;
+
+	div_t div_res;
+
+	*pUART_baud = 0x35;
+	*pUART_ctrl = 0x55;
+
+	srand(0x19701031);
+
+	sputs(msg);
+
+	cnt = 0;
+	while(1)
+	{
+		for (i=0; i < 1000; i++)
+		{
+			for (j=1; j < 1000; j++)
+			{
+				mix = (int)rand();
+				mix = (mix << 8) ^ (mix << 16);
+				s1 = (int)rand() ^ mix;
+				mix = (int)rand();
+				mix = (mix << 8) ^ (mix << 16);
+				s2 = (int)rand() ^ mix;
+	//			s1 = i;
+	//			s2 = j;
+
+				div_res = div(s1, s2);
+
+	//			print_word(s1);
+	//			sputs(" / ");
+	//			print_word(s2);
+	//			sputs(" = ");
+	//			print_word(div_res.quot);
+	//			sputs(" R: ");
+	//			print_word(div_res.rem);
+	//			sputs(" -- ");
+
+				sp = s2*div_res.quot;
+				st = div_res.rem + sp;
+				if (st != s1)
+				{
+					sputs("Failed: ");
+					sputs("d*quot = ");
+					print_word(sp);
+					sputs("\r\n");
+					return -1;
+				}
+			}
+		}
+		sputs("Iteration ");
+		print_word(cnt++);
+		sputs(": Passed\r\n");
+	}
+}
+