- added

git-svn-id: http://moon:8086/svn/mips@130 a8ebac50-d88d-4704-bea3-6648445a41b3
2017-01-24 17:09:47 +00:00
parent db2fa45751
commit 5d894028fb
39 changed files with 7758 additions and 0 deletions
@@ -0,0 +1,249 @@
+		.file	"exception.s"
+
+		.section .kdata,"a"
+		.align	2
+_k_stack:	.space	256, 0
+_k_msg1:	.asciiz	"Exception at "
+_k_msg2:	.asciiz	"EPC      : "
+_k_msg3:	.asciiz	"Cause    : "
+_k_msg4:	.asciiz	"Status   : "
+_k_msg5:	.asciiz	"BadVAddr : "
+_k_crlf:	.asciiz	"\r\n"
+_k_hextbl:	.ascii "0123456789ABCDEF"
+
+		.section .ktext,"ax"
+		.align	2
+
+		.equ	LED_STAT, 0x80000000
+		.equ	UART_DATA, 0x80000004
+		.equ	UART_STAT, 0x80000008
+	
+		.macro kpush reg
+		addiu	$sp, 4
+		sw		\reg, 0($sp)
+		.endm
+		
+		.macro kpop reg
+		lw		\reg, 0($sp)
+		addiu	$sp, -4
+		.endm
+
+_exc_handler:
+
+		sw		$sp, _k_stack
+		la		$sp, _k_stack
+		kpush	$8
+		kpush	$9
+		kpush	$10
+		kpush	$11
+		kpush	$12
+		kpush	$31
+
+		.set	noreorder
+		# Get BadVAddr
+		mfc0	$10, $8
+		kpush	$10
+		# Get Status
+		mfc0	$10, $12
+		kpush	$10
+		# Get Cause
+		mfc0	$10, $13
+		kpush	$10
+		srl		$10, 29
+		andi	$11, $10, 4
+		# Get EPC
+		mfc0	$10, $14
+		kpush	$10
+
+		# Get real EPC
+		addu	$10, $11
+		kpush	$10
+		
+		# Print CRLF
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+
+		# Print real EPC
+		la		$11, _k_msg1
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print EPC
+		la		$11, _k_msg2
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print Cause
+		la		$11, _k_msg3
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print Status
+		la		$11, _k_msg4
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print BadVAddr
+		la		$11, _k_msg5
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Set Error LED and ExcCode LEDs
+		# Get Cause
+		mfc0	$26, $13
+		li 		$27, LED_STAT
+		srl		$26, 2
+		andi	$26, 0x000F
+		or 		$26, $27
+		sw 		$26, 0($27)
+
+		# wait for exception = 0
+$w4x:	mfc0	$26, $13
+		nop
+		srl		$26, 8
+		andi	$26, 1
+		bnez	$26, $w4x
+		nop
+		
+		# Get return address
+		mfc0	$26, $14
+
+		kpop	$31
+		kpop	$12
+		kpop	$11
+		kpop	$10
+		kpop	$9
+		kpop	$8
+		lw		$sp, _k_stack
+
+		# Return
+		jr	$26
+		rfe
+		.set	reorder
+
+# word = $10
+_kprint_word:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		srl		$10, 16
+		jal		_kprint_halfword
+		nop
+		kpop	$10
+		jal		_kprint_halfword
+		nop
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+# halfword = $10
+_kprint_halfword:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		srl		$10, 8
+		jal		_kprint_byte
+		nop
+		kpop	$10
+		jal		_kprint_byte
+		nop
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+# byte = $10
+_kprint_byte:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		srl		$10, 4
+		jal		_kprint_nibble
+		nop
+		kpop	$10
+		jal		_kprint_nibble
+		nop
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+_kprint_nibble:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		la		$12, _k_hextbl
+		andi	$10, 0xF
+		addu	$12, $10
+		lbu		$10, 0($12)
+		jal		_ksaus
+		nop
+		kpop	$10
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+# char = $10
+_ksaus:
+		.set	noreorder
+		li		$8, UART_STAT
+		lbu		$8, 0($8)
+		li		$9, UART_DATA
+		andi	$8, 0x02
+		bnez	$8, _ksaus
+		nop
+		j		$31
+		sb		$10, 0($9)
+		.set	reorder
+	
+_kputs:
+		.set	noreorder
+		kpush	$11
+		kpush	$31
+$kpl:	lbu		$10, 0($11)
+		addiu	$11, 1
+		blez	$10, $kpex
+		nop
+		jal		_ksaus
+		nop
+		j		$kpl
+		nop
+$kpex:	kpop	$31
+		kpop	$11
+		jr		$31
+		nop		
+		.set	reorder
+	
@@ -0,0 +1,96 @@
+//#include <stdio.h>
+//#include <stdlib.h>
+//#include <string.h>
+
+int faculty(int f0, int *pDst, int len)
+{
+	int i=0;
+
+	pDst[i++] = f0;
+
+	for (; i < len; i++)
+	{
+		pDst[i] = pDst[i-1] * i;
+	}
+
+	return i;
+}
+
+#define	NUM_ELEMENTS	20
+
+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_word(int word)
+{
+	int i;
+	unsigned char c, nibble;
+
+	for (i=0; i < 8; i++)
+
+	{
+		nibble = (char)((word >> 28) & 0xF);
+		word <<= 4;
+
+		if (nibble < 10)
+			c = nibble + '0';
+		else
+			c = nibble + 'A' - 10;
+
+		saus(c);
+	}
+
+}
+
+int main (void)
+{
+	int buf[NUM_ELEMENTS], result, i, j, cnt;
+	volatile int *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\nReady\r\n";
+
+	*pUART_baud = 0x35;
+	*pUART_ctrl = 0x55;
+
+	cnt = 0;
+	memset(buf, 0, sizeof(buf));
+
+	sputs(msg);
+
+	buf[NUM_ELEMENTS-1] = 1;
+	while (1)
+	{
+		result = faculty(buf[NUM_ELEMENTS-1], buf, NUM_ELEMENTS);
+
+		for (i=0; i < NUM_ELEMENTS; i++)
+		{
+			print_word(buf[i]);
+			saus(13);
+			saus(10);
+		}
+		cnt++;
+
+		while(1);
+	}
+}
+
@@ -0,0 +1,255 @@
+	.file	1 "faculty.c"
+	.set	nobopt
+	.text
+	.align	2
+	.globl	faculty
+	.ent	faculty
+faculty:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$7,1			# 0x1
+	slt	$2,$7,$6
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L7
+	sw	$4,0($5)
+	.set	macro
+	.set	reorder
+
+	addiu	$5,$5,4
+$L5:
+	lw	$2,-4($5)
+	mult	$2,$7
+	addiu	$7,$7,1
+	slt	$3,$7,$6
+	mflo	$2
+	sw	$2,0($5)
+	.set	noreorder
+	.set	nomacro
+	bne	$3,$0,$L5
+	addiu	$5,$5,4
+	.set	macro
+	.set	reorder
+
+$L7:
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	move	$2,$7
+	.set	macro
+	.set	reorder
+
+	.end	faculty
+	.align	2
+	.globl	saus
+	.ent	saus
+saus:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	sll	$4,$4,24
+	sra	$4,$4,24
+	ori	$5,$2,0x4
+	ori	$3,$2,0x8
+$L10:
+	lbu	$2,0($3)
+	andi	$2,$2,0x2
+	bne	$2,$0,$L10
+	sb	$4,0($5)
+	j	$31
+	.end	saus
+	.align	2
+	.globl	sputs
+	.ent	sputs
+sputs:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	lb	$4,0($4)
+	.set	noreorder
+	.set	nomacro
+	j	$L18
+	move	$17,$16
+	.set	macro
+	.set	reorder
+
+$L19:
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	addiu	$16,$16,1
+	.set	macro
+	.set	reorder
+
+	lb	$4,0($16)
+$L18:
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$0,$L19
+	subu	$2,$16,$17
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	sputs
+	.align	2
+	.globl	print_word
+	.ent	print_word
+print_word:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	li	$17,7			# 0x7
+	srl	$3,$16,28
+$L29:
+	sltu	$2,$3,10
+	addiu	$17,$17,-1
+	sll	$16,$16,4
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$0,$L25
+	addiu	$4,$3,48
+	.set	macro
+	.set	reorder
+
+	addiu	$4,$3,55
+$L25:
+	jal	saus
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L29
+	srl	$3,$16,28
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_word
+	.section	.rodata.str1.4,"aMS",@progbits,1
+	.align	2
+$LC0:
+	.ascii	"MIPS R3000 CPU\r\n"
+	.ascii	"Ready\r\n\000"
+	.text
+	.align	2
+	.globl	main
+	.ent	main
+main:
+	.frame	$sp,136,$31		# vars= 104, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	lw	$2,$LC0
+	lw	$3,$LC0+4
+	addiu	$sp,$sp,-136
+	sw	$2,96($sp)
+	sw	$3,100($sp)
+	lw	$2,$LC0+8
+	lw	$3,$LC0+12
+	sw	$2,104($sp)
+	sw	$3,108($sp)
+	lw	$2,$LC0+16
+	lw	$3,$LC0+20
+	li	$7,-2147483648			# 0xffffffff80000000
+	ori	$8,$7,0x9
+	sw	$2,112($sp)
+	sw	$3,116($sp)
+	ori	$7,$7,0x8
+	li	$3,85
+	sw	$16,120($sp)
+	li	$2,53
+	addiu	$16,$sp,16
+	sb	$2,0($8)
+	move	$4,$16
+	sb	$3,0($7)
+	move	$5,$0
+	li	$6,80			# 0x50
+	sw	$31,128($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	memset
+	sw	$17,124($sp)
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	addiu	$4,$sp,96
+	.set	macro
+	.set	reorder
+
+	li	$3,1			# 0x1
+	sw	$3,92($sp)
+	li	$4,1			# 0x1
+	move	$5,$16
+	li	$6,20			# 0x14
+	.set	noreorder
+	.set	nomacro
+	jal	faculty
+	move	$17,$16
+	.set	macro
+	.set	reorder
+
+	li	$16,19			# 0x13
+$L36:
+	lw	$4,0($17)
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	addiu	$16,$16,-1
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,13			# 0xd
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,10			# 0xa
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	bgez	$16,$L36
+	addiu	$17,$17,4
+	.set	macro
+	.set	reorder
+
+$L37:
+	j	$L37
+	.end	main
@@ -0,0 +1,179 @@
+//#include <stdio.h>
+#include <stdlib.h>
+//#include <string.h>
+
+int fibonacci(int f0, int f1, int *pDst, int len)
+{
+	int i;
+
+	i = 0;
+
+	pDst[i++] = f0;
+	pDst[i++] = f1;
+
+	for (; i < len; i++)
+	{
+		pDst[i] = pDst[i-2] + pDst[i-1];
+	}
+
+	return i;
+}
+
+#define	NUM_ELEMENTS	100
+#define	NUM_RUNS		1000
+
+typedef struct _sstat_t
+{
+	char v1;
+	int v2;
+	char v3;
+	short v4;
+
+} __attribute__ ((__packed__)) stat_t;
+
+void test_func(stat_t *pObj)
+{
+	int *pReg = (int*)0x80000000;
+
+
+	*pReg = (int)pObj->v4;
+
+}
+
+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_word(int word)
+{
+	int i;
+	unsigned char c, nibble;
+
+	for (i=0; i < 8; i++)
+
+	{
+		nibble = (char)((word >> 28) & 0xF);
+		word <<= 4;
+
+		if (nibble < 10)
+			c = nibble + '0';
+		else
+			c = nibble + 'A' - 10;
+
+		saus(c);
+	}
+
+}
+
+int main (void)
+{
+	int buf[NUM_ELEMENTS], result, i, j, diff, num_right_elements, num_right_runs;
+	int fill, cnt, *pReg = (int*)0x80000000;
+	volatile char *pUART_data = (char*)0x80000004;
+	volatile char *pUART_ctrl = (char*)0x80000008;
+	volatile char *pUART_baud = (char*)0x80000009;
+	int testbuf[2] = {0x12345678, 0x5555aaaa};
+	stat_t stat = {0x0D, 0xFF5A3FC1, 0x1E, 0x0F07};
+	char msg[] = "MIPS R3000 CPU\r\nReady\r\n";
+	char msg2[32];
+	char baud;
+	char *pPtr;
+	long long product;
+	int op1, op2;
+
+	div_t div_res;
+
+	*pUART_baud = 0x35;
+	*pUART_ctrl = 0x55;
+
+	cnt = 0;
+	fill = 0xAAAAAAAA;
+	memset(msg2, 0, sizeof(msg2));
+	memcpy(msg2, msg, strlen(msg));
+
+	srand(0x19701031);
+	for (i=0; i < sizeof(msg2)-1; i++)
+		msg2[i] = sein();
+
+	sputs(msg2);
+	test_func(&stat);
+
+//	div_res = div(testbuf[1], testbuf[0]);
+	while (1)
+	{
+		num_right_runs = 0;
+		for (i=0; i < NUM_RUNS; i++)
+		{
+			for (j=0;  j < NUM_ELEMENTS; j++)
+				buf[j] = fill;
+
+			fill = ((fill ^ i) - 1) << 1;
+			num_right_elements = 2;
+			result = fibonacci(i, i+1, buf, NUM_ELEMENTS);
+			for (j=2;  j < NUM_ELEMENTS; j++)
+			{
+				diff = buf[j] - buf[j-1];
+				if (diff == buf[j-2])
+					num_right_elements++;
+			}
+			if (num_right_elements == NUM_ELEMENTS)
+				num_right_runs++;
+		}
+
+		if (num_right_runs == NUM_RUNS)
+		{
+			*pReg = cnt & 0x3FFFFFFF;
+			cnt++;
+		}
+		else
+		{
+			*pReg = 0x40000000 | cnt;
+			saus('X');
+		}
+		op1 = (int)-cnt;
+		op2 = (int)((op1 & 8) << 28) ^ rand();
+		product = (long long)op1 * (long long)op2;
+		print_word((int)op1);
+		saus(' ');
+		saus('x');
+		saus(' ');
+		print_word((int)op2);
+		saus(' ');
+		saus('=');
+		saus(' ');
+		print_word((int)(product >> 32));
+		print_word((int)product);
+		saus(13);
+		saus(10);
+
+	}
+	return 0;
+}
+
@@ -0,0 +1,555 @@
+	.file	1 "fibonacci.c"
+	.set	nobopt
+	.text
+	.align	2
+	.globl	fibonacci
+	.ent	fibonacci
+fibonacci:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$8,2			# 0x2
+	slt	$2,$8,$7
+	sw	$4,0($6)
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L7
+	sw	$5,4($6)
+	.set	macro
+	.set	reorder
+
+	addiu	$6,$6,8
+$L5:
+	lw	$2,-8($6)
+	lw	$3,-4($6)
+	addiu	$8,$8,1
+	addu	$2,$2,$3
+	slt	$4,$8,$7
+	sw	$2,0($6)
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$0,$L5
+	addiu	$6,$6,4
+	.set	macro
+	.set	reorder
+
+$L7:
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	move	$2,$8
+	.set	macro
+	.set	reorder
+
+	.end	fibonacci
+	.align	2
+	.globl	test_func
+	.ent	test_func
+test_func:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	lbu	$2,7($4)
+	lbu	$3,6($4)
+	sll	$2,$2,8
+	or	$2,$2,$3
+	sll	$2,$2,16
+	sra	$2,$2,16
+	li	$3,-2147483648			# 0xffffffff80000000
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	sw	$2,0($3)
+	.set	macro
+	.set	reorder
+
+	.end	test_func
+	.align	2
+	.globl	sein
+	.ent	sein
+sein:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	ori	$4,$2,0x4
+	ori	$3,$2,0x8
+$L11:
+	lbu	$2,0($3)
+	andi	$2,$2,0x10
+	beq	$2,$0,$L11
+	lbu	$2,0($4)
+	sll	$2,$2,24
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	sra	$2,$2,24
+	.set	macro
+	.set	reorder
+
+	.end	sein
+	.align	2
+	.globl	saus
+	.ent	saus
+saus:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	sll	$4,$4,24
+	sra	$4,$4,24
+	ori	$5,$2,0x4
+	ori	$3,$2,0x8
+$L14:
+	lbu	$2,0($3)
+	andi	$2,$2,0x2
+	bne	$2,$0,$L14
+	sb	$4,0($5)
+	j	$31
+	.end	saus
+	.align	2
+	.globl	sputs
+	.ent	sputs
+sputs:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	lb	$4,0($4)
+	.set	noreorder
+	.set	nomacro
+	j	$L22
+	move	$17,$16
+	.set	macro
+	.set	reorder
+
+$L23:
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	addiu	$16,$16,1
+	.set	macro
+	.set	reorder
+
+	lb	$4,0($16)
+$L22:
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$0,$L23
+	subu	$2,$16,$17
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	sputs
+	.align	2
+	.globl	print_word
+	.ent	print_word
+print_word:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	li	$17,7			# 0x7
+	srl	$3,$16,28
+$L33:
+	sltu	$2,$3,10
+	addiu	$17,$17,-1
+	sll	$16,$16,4
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$0,$L29
+	addiu	$4,$3,48
+	.set	macro
+	.set	reorder
+
+	addiu	$4,$3,55
+$L29:
+	jal	saus
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L33
+	srl	$3,$16,28
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_word
+	.section	.sdata,"aw",@progbits
+	.align	2
+$LC0:
+	.word	305419896
+	.word	1431677610
+	.section	.rodata.str1.4,"aMS",@progbits,1
+	.align	2
+$LC2:
+	.ascii	"MIPS R3000 CPU\r\n"
+	.ascii	"Ready\r\n\000"
+	.section	.sdata
+	.align	2
+$LC1:
+	.byte	13
+	.4byte	-10862655
+	.byte	30
+	.half	3847
+	.text
+	.align	2
+	.globl	main
+	.ent	main
+main:
+	.frame	$sp,536,$31		# vars= 480, regs= 10/0, args= 16, gp= 0
+	.mask	0xc0ff0000,-4
+	.fmask	0x00000000,0
+	lw	$2,$LC0
+	addiu	$sp,$sp,-536
+	lw	$3,$LC0+4
+	sw	$2,416($sp)
+	lw	$2,$LC2
+	lwl	$4,$LC1+3
+	lwl	$5,$LC1+7
+	sw	$3,420($sp)
+	sw	$2,432($sp)
+	lw	$3,$LC2+4
+	lw	$2,$LC2+8
+	lwr	$5,$LC1+4
+	lwr	$4,$LC1
+	sw	$3,436($sp)
+	sw	$2,440($sp)
+	lw	$3,$LC2+12
+	lw	$2,$LC2+16
+	sw	$31,532($sp)
+	sw	$5,428($sp)
+	sw	$23,524($sp)
+	sw	$22,520($sp)
+	sw	$21,516($sp)
+	sw	$20,512($sp)
+	sw	$18,504($sp)
+	sw	$17,500($sp)
+	sw	$16,496($sp)
+	sw	$4,424($sp)
+	sw	$3,444($sp)
+	sw	$fp,528($sp)
+	sw	$19,508($sp)
+	sw	$2,448($sp)
+	lw	$3,$LC2+20
+	li	$23,-2147483648			# 0xffffffff80000000
+	ori	$7,$23,0x9
+	sw	$3,452($sp)
+	ori	$6,$23,0x8
+	li	$3,85
+	addiu	$16,$sp,432
+	li	$2,53
+	sb	$2,0($7)
+	move	$4,$16
+	sb	$3,0($6)
+	li	$2,-1431699456			# 0xffffffffaaaa0000
+	sw	$0,456($sp)
+	sw	$0,460($sp)
+	sw	$0,464($sp)
+	sw	$0,468($sp)
+	sw	$0,472($sp)
+	sw	$0,476($sp)
+	sw	$0,480($sp)
+	sw	$0,484($sp)
+	ori	$20,$2,0xaaaa
+	.set	noreorder
+	.set	nomacro
+	jal	strlen
+	addiu	$18,$sp,456
+	.set	macro
+	.set	reorder
+
+	move	$6,$2
+	move	$5,$16
+	.set	noreorder
+	.set	nomacro
+	jal	memcpy
+	move	$4,$18
+	.set	macro
+	.set	reorder
+
+	li	$4,426770432			# 0x19700000
+	.set	noreorder
+	.set	nomacro
+	jal	srand
+	ori	$4,$4,0x1031
+	.set	macro
+	.set	reorder
+
+	move	$22,$0
+	move	$17,$0
+	addiu	$21,$sp,16
+$L38:
+	addu	$16,$21,$17
+	.set	noreorder
+	.set	nomacro
+	jal	sein
+	addiu	$17,$17,1
+	.set	macro
+	.set	reorder
+
+	sltu	$3,$17,31
+	.set	noreorder
+	.set	nomacro
+	bne	$3,$0,$L38
+	sb	$2,440($16)
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$4,$18
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	test_func
+	addiu	$4,$sp,424
+	.set	macro
+	.set	reorder
+
+	li	$fp,100			# 0x64
+	move	$18,$0
+	move	$17,$0
+$L54:
+	move	$2,$21
+	li	$6,99			# 0x63
+$L47:
+	addiu	$6,$6,-1
+	sw	$20,0($2)
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L47
+	addiu	$2,$2,4
+	.set	macro
+	.set	reorder
+
+	xor	$2,$20,$17
+	addiu	$16,$17,1
+	addiu	$2,$2,-1
+	move	$5,$16
+	addiu	$6,$sp,16
+	li	$7,100			# 0x64
+	move	$4,$17
+	.set	noreorder
+	.set	nomacro
+	jal	fibonacci
+	sll	$20,$2,1
+	.set	macro
+	.set	reorder
+
+	li	$7,2			# 0x2
+	addiu	$5,$21,8
+	.set	noreorder
+	.set	nomacro
+	j	$L52
+	li	$6,97			# 0x61
+	.set	macro
+	.set	reorder
+
+$L50:
+	bltz	$6,$L65
+$L52:
+	lw	$2,0($5)
+	lw	$3,-4($5)
+	lw	$4,-8($5)
+	subu	$2,$2,$3
+	addiu	$6,$6,-1
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$2,$L50
+	addiu	$5,$5,4
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L52
+	addiu	$7,$7,1
+	.set	macro
+	.set	reorder
+
+$L65:
+	beq	$7,$fp,$L66
+$L43:
+	slt	$2,$16,1000
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$0,$L54
+	move	$17,$16
+	.set	macro
+	.set	reorder
+
+	li	$2,1000			# 0x3e8
+	.set	noreorder
+	.set	nomacro
+	bne	$18,$2,$L55
+	li	$3,1073676288			# 0x3fff0000
+	.set	macro
+	.set	reorder
+
+	ori	$3,$3,0xffff
+	and	$2,$22,$3
+	sw	$2,0($23)
+	addiu	$22,$22,1
+	subu	$16,$0,$22
+$L67:
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	andi	$17,$16,0x8
+	.set	macro
+	.set	reorder
+
+	sll	$17,$17,28
+	xor	$17,$17,$2
+	mult	$16,$17
+	mflo	$18
+	mfhi	$19
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$16
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,32			# 0x20
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,120			# 0x78
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,32			# 0x20
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$17
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,32			# 0x20
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,61			# 0x3d
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,32			# 0x20
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	sra	$4,$19,0
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$18
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,13			# 0xd
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	li	$4,10			# 0xa
+	.set	macro
+	.set	reorder
+
+	move	$18,$0
+	.set	noreorder
+	.set	nomacro
+	j	$L54
+	move	$17,$0
+	.set	macro
+	.set	reorder
+
+$L66:
+	.set	noreorder
+	.set	nomacro
+	j	$L43
+	addiu	$18,$18,1
+	.set	macro
+	.set	reorder
+
+$L55:
+	li	$2,1073741824			# 0x40000000
+	or	$2,$22,$2
+	li	$4,88			# 0x58
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	sw	$2,0($23)
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	j	$L67
+	subu	$16,$0,$22
+	.set	macro
+	.set	reorder
+
+	.end	main
@@ -0,0 +1,24 @@
+MEMORY
+{
+  imem       : ORIGIN = 0x00000000, LENGTH = 0x00002000  /*   8K    */
+}
+
+
+SECTIONS
+{
+   .stext 0x00000000 :
+   {
+     *(.stext)
+   }  > imem
+   
+   .ktext 0x00000180 :
+   {
+     *(.ktext)
+   }  > imem
+
+   .text 0x00000200 :
+   {
+     *(.text)
+   }  > imem
+
+}
@@ -0,0 +1,28 @@
+		.file	"init.s"
+	
+		.text
+		.align	2
+		.globl _init
+		.extern end
+	
+_init:
+		.set	noreorder
+
+		# set uart
+		la	$26, sys_uart_baud
+		addiu	$27, $0, baudrate
+		sb	$27, 0($26)
+		
+		# set stack pointer 
+		la $sp, end
+
+		# jump main
+		la $26, main
+		jalr $26
+
+_terminate:
+		nop
+		j		_terminate
+		nop
+		
+		.set	reorder
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+TARGET=$(basename $1 .c)
+
+xtclsh.exe $TARGET.RAM.tcl
+xtclsh.exe $TARGET.ROM.tcl
+
@@ -0,0 +1,251 @@
+		.file	"exception.s"
+
+		.section .kdata,"a"
+		.align	2
+_k_stack:	.space	256, 0
+_k_msg1:	.asciiz	"Exception at "
+_k_msg2:	.asciiz	"EPC      : "
+_k_msg3:	.asciiz	"Cause    : "
+_k_msg4:	.asciiz	"Status   : "
+_k_msg5:	.asciiz	"BadVAddr : "
+_k_crlf:	.asciiz	"\r\n"
+_k_hextbl:	.ascii "0123456789ABCDEF"
+
+		.section .ktext,"ax"
+		.align	2
+		.globl _kputs
+
+		.macro kpush reg
+		addiu	$sp, 4
+		sw		\reg, 0($sp)
+		.endm
+		
+		.macro kpop reg
+		lw		\reg, 0($sp)
+		addiu	$sp, -4
+		.endm
+
+_exc_handler:
+
+		sw		$sp, _k_stack
+		la		$sp, _k_stack
+		kpush	$8
+		kpush	$9
+		kpush	$10
+		kpush	$11
+		kpush	$12
+		kpush	$31
+
+		.set	noreorder
+		# Get BadVAddr
+		mfc0	$10, $8
+		kpush	$10
+		# Get Status
+		mfc0	$10, $12
+		kpush	$10
+		# Get Cause
+		mfc0	$10, $13
+		kpush	$10
+		srl		$10, 29
+		andi	$11, $10, 4
+		# Get EPC
+		mfc0	$10, $14
+		kpush	$10
+
+		# Get real EPC
+		addu	$10, $11
+		kpush	$10
+		
+		# set uart
+		la	$26, sys_uart_baud
+		addiu	$27, $0, baudrate
+		sb	$27, 0($26)
+
+		# Print CRLF
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+
+		# Print real EPC
+		la		$11, _k_msg1
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print EPC
+		la		$11, _k_msg2
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print Cause
+		la		$11, _k_msg3
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print Status
+		la		$11, _k_msg4
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Print BadVAddr
+		la		$11, _k_msg5
+		jal		_kputs
+		nop
+		kpop	$10
+		jal		_kprint_word		
+		nop
+		la		$11, _k_crlf
+		jal		_kputs
+		nop
+		
+		# Set Error LED and ExcCode LEDs
+		# Get Cause
+		mfc0	$26, $13
+		la 		$27, sys_led_port
+		srl		$26, 2
+		andi	$26, 0x000F
+		or 		$26, $27
+		sw 		$26, 0($27)
+
+		# wait for all interrupts = 0
+$w4x:	mfc0	$26, $13
+		nop
+		srl		$26, 8
+		andi	$26, 0xFF
+		bnez	$26, $w4x
+		nop
+		
+		# Get return address
+		mfc0	$26, $14
+
+		kpop	$31
+		kpop	$12
+		kpop	$11
+		kpop	$10
+		kpop	$9
+		kpop	$8
+		lw		$sp, _k_stack
+
+		# Return
+		jr	$26
+		rfe
+		.set	reorder
+
+# word = $10
+_kprint_word:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		srl		$10, 16
+		jal		_kprint_halfword
+		nop
+		kpop	$10
+		jal		_kprint_halfword
+		nop
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+# halfword = $10
+_kprint_halfword:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		srl		$10, 8
+		jal		_kprint_byte
+		nop
+		kpop	$10
+		jal		_kprint_byte
+		nop
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+# byte = $10
+_kprint_byte:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		srl		$10, 4
+		jal		_kprint_nibble
+		nop
+		kpop	$10
+		jal		_kprint_nibble
+		nop
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+_kprint_nibble:
+		.set	noreorder
+		kpush	$31
+		kpush	$10
+		la		$12, _k_hextbl
+		andi	$10, 0xF
+		addu	$12, $10
+		lbu		$10, 0($12)
+		jal		_ksaus
+		nop
+		kpop	$10
+		kpop	$31
+		jr		$31
+		nop
+		.set	noreorder
+		
+# char = $10
+_ksaus:
+		.set	noreorder
+		la		$8, sys_uart_stat
+		lbu		$8, 0($8)
+		la		$9, sys_uart_data
+		andi	$8, 0x02
+		bnez	$8, _ksaus
+		nop
+		j		$31
+		sb		$10, 0($9)
+		.set	reorder
+	
+_kputs:
+		.set	noreorder
+		kpush	$11
+		kpush	$31
+$kpl:	lbu		$10, 0($11)
+		addiu	$11, 1
+		blez	$10, $kpex
+		nop
+		jal		_ksaus
+		nop
+		j		$kpl
+		nop
+$kpex:	kpop	$31
+		kpop	$11
+		jr		$31
+		nop		
+		.set	reorder
+	
@@ -0,0 +1,47 @@
+MEMORY
+{
+  imem       : ORIGIN = 0x00400000, LENGTH = 0x00004000  /*   8K    */
+  dmem       : ORIGIN = 0x00000000, LENGTH = 0x00002000  /*   8K    */
+}
+
+end = 0x7FFFEFFC;
+baudrate = 0x0D;
+sys_led_port = 0x80000000;
+sys_uart_baud = 0x80000009;
+sys_uart_stat = 0x80000008;
+sys_uart_data = 0x80000004;
+sys_timer_sec = 0x80000014;
+sys_timer_usec = 0x80000010;
+
+SECTIONS
+{
+   .stext 0x00400000 :
+   {
+     *(.stext)
+   }  > imem
+   
+   .ktext 0x00400180 :
+   {
+     *(.ktext)
+   }  > imem
+
+   .text . :
+   {
+     *(.text)
+   }  > imem
+
+   .data 0x00000000 : ALIGN(2)
+   {
+      *(.rodata*) *(.data) *(.sdata) *(.sbss) *(.kdata)
+   }  > dmem
+
+   .bss . :
+   {
+      *(.bss)
+   }  > dmem
+
+   .eh_frame . :
+   {
+      *(.eh_frame)
+   }  > dmem
+}
@@ -0,0 +1,64 @@
+//#include <stdio.h>
+//#include <stdlib.h>
+//#include <string.h>
+
+int main (void)
+{
+
+
+__asm
+(
+	".set	noreorder\n"
+	"li		$8, 0x81234678\n"
+	"li		$15, 0x10000000\n"
+	"li		$16, 0xAAAAAAAA\n"
+	"li		$17, 0xBBBBBBBB\n"
+	"li		$18, 0xCCCCCCCC\n"
+	"li		$19, 0xDDDDDDDD\n"
+	"li		$24, 0x11111111\n"
+	"li		$25, 0x22222222\n"
+	"li		$26, 0x33333333\n"
+	"li		$27, 0x44444444\n"
+	"sw		$8, 0($15)\n"
+	"nop\n"
+	"lwl	$16, 0($15)\n"
+	"lwl	$17, 1($15)\n"
+	"lwl	$18, 2($15)\n"
+	"lwl	$19, 3($15)\n"
+	"nop\n"
+	"lwr	$24, 0($15)\n"
+	"lwr	$25, 1($15)\n"
+	"lwr	$26, 2($15)\n"
+	"lwr	$27, 3($15)\n"
+	"nop\n"
+	"lbu	$16, 0($15)\n"
+	"lbu	$17, 1($15)\n"
+	"lbu	$18, 2($15)\n"
+	"lbu	$19, 3($15)\n"
+	"nop\n"
+	"lb		$16, 0($15)\n"
+	"lb		$17, 1($15)\n"
+	"lb		$18, 2($15)\n"
+	"lb		$19, 3($15)\n"
+	"nop\n"
+	"swl	$8, 4($15)\n"
+	"swl	$8, 9($15)\n"
+	"swl	$8, 14($15)\n"
+	"swl	$8, 19($15)\n"
+	"nop\n"
+	"swr	$8, 20($15)\n"
+	"swr	$8, 25($15)\n"
+	"swr	$8, 30($15)\n"
+	"swr	$8, 35($15)\n"
+	"nop\n"
+	"sb		$8, 4($15)\n"
+	"sb		$8, 5($15)\n"
+	"sb		$8, 6($15)\n"
+	"sb		$8, 7($15)\n"
+	"nop\n"
+	".set	reorder\n"
+
+);
+
+}
+
@@ -0,0 +1,64 @@
+	.file	1 "load_store.c"
+	.set	nobopt
+	.text
+	.align	2
+	.globl	main
+	.ent	main
+main:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+ #APP
+	.set	noreorder
+li		$8, 0x81234678
+li		$15, 0x10000000
+li		$16, 0xAAAAAAAA
+li		$17, 0xBBBBBBBB
+li		$18, 0xCCCCCCCC
+li		$19, 0xDDDDDDDD
+li		$24, 0x11111111
+li		$25, 0x22222222
+li		$26, 0x33333333
+li		$27, 0x44444444
+sw		$8, 0($15)
+nop
+lwl	$16, 0($15)
+lwl	$17, 1($15)
+lwl	$18, 2($15)
+lwl	$19, 3($15)
+nop
+lwr	$24, 0($15)
+lwr	$25, 1($15)
+lwr	$26, 2($15)
+lwr	$27, 3($15)
+nop
+lbu	$16, 0($15)
+lbu	$17, 1($15)
+lbu	$18, 2($15)
+lbu	$19, 3($15)
+nop
+lb		$16, 0($15)
+lb		$17, 1($15)
+lb		$18, 2($15)
+lb		$19, 3($15)
+nop
+swl	$8, 4($15)
+swl	$8, 9($15)
+swl	$8, 14($15)
+swl	$8, 19($15)
+nop
+swr	$8, 20($15)
+swr	$8, 25($15)
+swr	$8, 30($15)
+swr	$8, 35($15)
+nop
+sb		$8, 4($15)
+sb		$8, 5($15)
+sb		$8, 6($15)
+sb		$8, 7($15)
+nop
+.set	reorder
+
+ #NO_APP
+	j	$31
+	.end	main
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+TARGET=$(basename $1 .c)
+TARGET_CPU=r3000
+ROM_WORDADDR_WIDTH=12
+RAM_WORDADDR_WIDTH=11
+
+echo Building $TARGET...
+
+mipsel-elf-as.exe -march=$TARGET_CPU startup.s -o startup.o
+mipsel-elf-as.exe -march=$TARGET_CPU init.s -o init.o
+mipsel-elf-as.exe -march=$TARGET_CPU kernel.s -o kernel.o
+
+#mipsel-elf-gcc -O2 -march=$TARGET_CPU $TARGET.c -o $TARGET.s -L $LIBDIR
+
+mipsel-elf-gcc -msoft-float -O2 -c utils.c -o utils.o
+mipsel-elf-gcc -msoft-float -O2 -c $TARGET.c -o $TARGET.o
+mipsel-elf-ld.exe -G 0 -M -T link.ld startup.o init.o kernel.o utils.o $TARGET.o -o $TARGET.elf -L /usr/local/mipsel-elf/lib -L /usr/local/lib/gcc/mipsel-elf/3.4.6 -lc -lgcc >$TARGET.map
+mipsel-elf-objdump.exe -d $TARGET.elf > $TARGET.dis
+
+mipsel-elf-objcopy.exe -j .stext -j .ktext -j .text $TARGET.elf -O binary $TARGET.ROM.bin
+mipsel-elf-objcopy.exe -j .data $TARGET.elf -O binary $TARGET.RAM.bin
+
+./romgen.exe $TARGET.ROM.bin $ROM_WORDADDR_WIDTH
+./ramgen.exe $TARGET.RAM.bin $RAM_WORDADDR_WIDTH
+
+#xtclsh.exe $TARGET.RAM.tcl
+#xtclsh.exe $TARGET.ROM.tcl
+
+echo done.
@@ -0,0 +1,31 @@
+main:
+		j	lab
+#		nop
+#		break 52
+lab:			
+		li, $8, 0x81234678
+
+# SB
+		li, $15, 0x10000000
+		li  $16, 0x00400014
+		mtc0, $16, $14
+		nop
+		nop
+		rfe
+
+# Address error exception
+		sw	$8, 1($15)
+		sw	$8, 2($15)
+		sw	$8, 3($15)
+		
+# Address error exception
+		sh  $8, 1($15)
+
+# Address error exception
+		sh  $8, 3($15)
+
+
+		nop
+		nop
+		nop
+		
@@ -0,0 +1,86 @@
+SB (tested by SPIM)
+VA(1..0)       DMEM_WE        ROL
+0              0001            0
+1              0010            1
+2              0100            2
+3              1000            3
+
+SH (tested by SPIM)
+VA(1..0)       DMEM_WE        ROL
+0              0011            0
+2              1100            2
+
+SWL (tested by SPIM)
+VA(1..0)       DMEM_WE        ROL
+0              0001            1 
+1              0011            2
+2              0111            3
+3              1111            0
+
+SWR (tested by SPIM)
+VA(1..0)       DMEM_WE        ROL
+0              1111            0
+1              1110            1
+2              1100            2
+3              1000            3
+
+LB (tested by SPIM)
+VA(1..0)       REG_WE         ROR
+0              1111            0   
+1              1111            1   
+2              1111            2   
+3              1111            3   
+
+LH (tested by SPIM)
+VA(1..0)       REG_WE         ROR
+0              1111            0      
+2              1111            2   
+
+LWL (tested by SPIM)
+VA(1..0)       REG_WE         ROR
+0              1000            1
+1              1100            2
+2              1110            3
+3              1111            0
+
+LWR (tested by SPIM)
+VA(1..0)       REG_WE         ROR
+0              1111            0   
+1              0111            1   
+2              0011            2   
+3              0001            3   
+
+
+
+*SHIFTER*        SB      SH      SWL      SWR     SW
+shift_byp        0       0        0        0      1               
+shift_off        0       0        1        0      x
+
+SHL = VA + shift_off
+
+*Byte Enable*    SB      SH      SWL      SWR     SW
+be_byp           0       0        0        0      1               
+quarter_word_en  1       0        0        0      x
+half_word_en     0       1        0        0      x
+align_left       x       x        0        1      x  
+
+
+*SHIFTER*        LB      LH      LWL      LWR     LW
+shift_byp        0       0        0        0      1               
+shift_off        0       0        1        0      x 
+
+SHL = VA + shift_off
+
+*Byte Enable*    LB      LH      LWL      LWR     LW
+be_byp           1       1        0        0      1
+align_left       x       x        1        0      x
+
+
+* Sign ext*    
+se_byp =  shift_byp and (shift_byp and not be_byp)
+
+
+00 11
+01 10
+10 01
+11 00
@@ -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");
+	}
+}
+
@@ -0,0 +1,391 @@
+	.file	1 "muldiv.c"
+	.set	nobopt
+	.text
+	.align	2
+	.globl	sein
+	.ent	sein
+sein:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	ori	$4,$2,0x4
+	ori	$3,$2,0x8
+$L2:
+	lbu	$2,0($3)
+	andi	$2,$2,0x10
+	beq	$2,$0,$L2
+	lbu	$2,0($4)
+	sll	$2,$2,24
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	sra	$2,$2,24
+	.set	macro
+	.set	reorder
+
+	.end	sein
+	.align	2
+	.globl	saus
+	.ent	saus
+saus:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	sll	$4,$4,24
+	sra	$4,$4,24
+	ori	$5,$2,0x4
+	ori	$3,$2,0x8
+$L6:
+	lbu	$2,0($3)
+	andi	$2,$2,0x2
+	bne	$2,$0,$L6
+	sb	$4,0($5)
+	j	$31
+	.end	saus
+	.align	2
+	.globl	sputs
+	.ent	sputs
+sputs:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	lb	$4,0($4)
+	.set	noreorder
+	.set	nomacro
+	j	$L14
+	move	$17,$16
+	.set	macro
+	.set	reorder
+
+$L15:
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	addiu	$16,$16,1
+	.set	macro
+	.set	reorder
+
+	lb	$4,0($16)
+$L14:
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$0,$L15
+	subu	$2,$16,$17
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	sputs
+	.align	2
+	.globl	print_byte
+	.ent	print_byte
+print_byte:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$16,16($sp)
+	sll	$16,$4,24
+	sw	$17,20($sp)
+	sw	$31,24($sp)
+	sra	$16,$16,24
+	li	$17,1			# 0x1
+	sra	$2,$16,4
+$L25:
+	andi	$5,$2,0xf
+	sll	$2,$16,4
+	sll	$16,$2,24
+	sltu	$3,$5,10
+	addiu	$17,$17,-1
+	sra	$16,$16,24
+	.set	noreorder
+	.set	nomacro
+	bne	$3,$0,$L21
+	addiu	$4,$5,48
+	.set	macro
+	.set	reorder
+
+	addiu	$4,$5,55
+$L21:
+	jal	saus
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L25
+	sra	$2,$16,4
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_byte
+	.align	2
+	.globl	print_word
+	.ent	print_word
+print_word:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	li	$17,3			# 0x3
+$L30:
+	sra	$4,$16,24
+	.set	noreorder
+	.set	nomacro
+	jal	print_byte
+	addiu	$17,$17,-1
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L30
+	sll	$16,$16,8
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_word
+	.section	.rodata.str1.4,"aMS",@progbits,1
+	.align	2
+$LC0:
+	.ascii	"MIPS R3000 CPU\r\n"
+	.ascii	"Mul/Div Test\r\n\000"
+	.align	2
+$LC1:
+	.ascii	"Failed: \000"
+	.align	2
+$LC2:
+	.ascii	"d*quot = \000"
+	.align	2
+$LC3:
+	.ascii	"\r\n\000"
+	.align	2
+$LC4:
+	.ascii	"Iteration \000"
+	.align	2
+$LC5:
+	.ascii	": Passed\r\n\000"
+	.text
+	.align	2
+	.globl	main
+	.ent	main
+main:
+	.frame	$sp,88,$31		# vars= 40, regs= 7/0, args= 16, gp= 0
+	.mask	0x803f0000,-8
+	.fmask	0x00000000,0
+	lw	$2,$LC0
+	addiu	$sp,$sp,-88
+	sw	$2,16($sp)
+	lw	$3,$LC0+4
+	lw	$2,$LC0+8
+	sw	$3,20($sp)
+	sw	$2,24($sp)
+	lw	$3,$LC0+12
+	lw	$2,$LC0+16
+	sw	$3,28($sp)
+	sw	$2,32($sp)
+	lw	$3,$LC0+20
+	lw	$2,$LC0+24
+	sw	$3,36($sp)
+	sw	$2,40($sp)
+	lhu	$3,$LC0+28
+	lbu	$2,$LC0+30
+	li	$5,-2147483648			# 0xffffffff80000000
+	ori	$6,$5,0x9
+	sh	$3,44($sp)
+	sb	$2,46($sp)
+	ori	$5,$5,0x8
+	li	$3,53
+	li	$2,85
+	li	$4,426770432			# 0x19700000
+	sb	$3,0($6)
+	ori	$4,$4,0x1031
+	sb	$2,0($5)
+	sw	$31,80($sp)
+	sw	$21,76($sp)
+	sw	$19,68($sp)
+	sw	$20,72($sp)
+	sw	$18,64($sp)
+	sw	$17,60($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	srand
+	sw	$16,56($sp)
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	addiu	$4,$sp,16
+	.set	macro
+	.set	reorder
+
+	move	$21,$0
+	addiu	$19,$sp,48
+	move	$20,$0
+$L44:
+	.set	noreorder
+	.set	nomacro
+	j	$L43
+	li	$18,1			# 0x1
+	.set	macro
+	.set	reorder
+
+$L51:
+	beq	$3,$0,$L50
+$L43:
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	addiu	$18,$18,1
+	.set	macro
+	.set	reorder
+
+	sll	$3,$2,16
+	sll	$2,$2,8
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	xor	$16,$2,$3
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	xor	$17,$2,$16
+	.set	macro
+	.set	reorder
+
+	sll	$3,$2,16
+	sll	$2,$2,8
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	xor	$16,$2,$3
+	.set	macro
+	.set	reorder
+
+	xor	$16,$2,$16
+	move	$6,$16
+	move	$4,$19
+	.set	noreorder
+	.set	nomacro
+	jal	div
+	move	$5,$17
+	.set	macro
+	.set	reorder
+
+	lw	$2,48($sp)
+	mult	$2,$16
+	lw	$2,52($sp)
+	mflo	$16
+	addu	$2,$2,$16
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$17,$L51
+	slt	$3,$18,1000
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC1
+	jal	sputs
+	la	$4,$LC2
+	jal	sputs
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$16
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC3
+	jal	sputs
+	lw	$31,80($sp)
+	lw	$21,76($sp)
+	lw	$20,72($sp)
+	lw	$19,68($sp)
+	lw	$18,64($sp)
+	lw	$17,60($sp)
+	lw	$16,56($sp)
+	li	$2,-1			# 0xffffffffffffffff
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,88
+	.set	macro
+	.set	reorder
+
+$L50:
+	addiu	$20,$20,1
+	slt	$2,$20,1000
+	bne	$2,$0,$L44
+	la	$4,$LC4
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$20,$0
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$21
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC5
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	addiu	$21,$21,1
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	j	$L43
+	li	$18,1			# 0x1
+	.set	macro
+	.set	reorder
+
+	.end	main
@@ -0,0 +1,27 @@
+0x12345678 x 0x87654321
+HI      = f76c768d   LO      = 70b88d78		signed
+HI      = 09a0cd05   LO      = 70b88d78		unsigned
+
+0x87654321 x 0x12345678
+HI      = f76c768d   LO      = 70b88d78		signed
+HI      = 09a0cd05   LO      = 70b88d78		unsigned
+
+0x12345678 x 0x12345678
+HI      = 014b66dc   LO      = 1df4d840		signed
+HI      = 014b66dc   LO      = 1df4d840		unsigned
+
+0x87654321 x 0x87654321
+HI      = 38d16e98   LO      = d7a44a41		signed
+HI      = 479bf4da   LO      = d7a44a41		unsigned
+
+
+p1 * n2 = not(p1 * (1 + not(n2)))
+
+n1 * p1 = not((1 + not(n1)) * p2)
+
+p1 * p2 = p1 * p2
+
+n1 * n2 = not(n1) * not(n2);
+
+
+12345678 * ( 87654321 not and FFFFFFFF ) = + 12345677 =
@@ -0,0 +1,556 @@
+	.file	1 "rmd160_test.c"
+	.set	nobopt
+	.text
+	.align	2
+	.globl	saus
+	.ent	saus
+saus:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	sll	$4,$4,24
+	sra	$4,$4,24
+	ori	$5,$2,0x4
+	ori	$3,$2,0x8
+$L2:
+	lbu	$2,0($3)
+	andi	$2,$2,0x2
+	bne	$2,$0,$L2
+	sb	$4,0($5)
+	j	$31
+	.end	saus
+	.align	2
+	.globl	sputs
+	.ent	sputs
+sputs:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	lb	$4,0($4)
+	.set	noreorder
+	.set	nomacro
+	j	$L11
+	move	$17,$16
+	.set	macro
+	.set	reorder
+
+$L12:
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	addiu	$16,$16,1
+	.set	macro
+	.set	reorder
+
+	lb	$4,0($16)
+$L11:
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$0,$L12
+	subu	$2,$16,$17
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	sputs
+	.align	2
+	.globl	print_byte
+	.ent	print_byte
+print_byte:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$16,16($sp)
+	sll	$16,$4,24
+	sw	$17,20($sp)
+	sw	$31,24($sp)
+	sra	$16,$16,24
+	li	$17,1			# 0x1
+	sra	$2,$16,4
+$L22:
+	andi	$5,$2,0xf
+	sll	$2,$16,4
+	sll	$16,$2,24
+	sltu	$3,$5,10
+	addiu	$17,$17,-1
+	sra	$16,$16,24
+	.set	noreorder
+	.set	nomacro
+	bne	$3,$0,$L18
+	addiu	$4,$5,48
+	.set	macro
+	.set	reorder
+
+	addiu	$4,$5,55
+$L18:
+	jal	saus
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L22
+	sra	$2,$16,4
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_byte
+	.align	2
+	.globl	print_word
+	.ent	print_word
+print_word:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	li	$17,3			# 0x3
+$L27:
+	sra	$4,$16,24
+	.set	noreorder
+	.set	nomacro
+	jal	print_byte
+	addiu	$17,$17,-1
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L27
+	sll	$16,$16,8
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_word
+
+	.lcomm	hashcode.0,20
+	.align	2
+	.globl	RMD
+	.ent	RMD
+RMD:
+	.frame	$sp,128,$31		# vars= 88, regs= 6/0, args= 16, gp= 0
+	.mask	0x801f0000,-4
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-128
+	sw	$16,104($sp)
+	move	$16,$4
+	addiu	$4,$sp,16
+	sw	$31,124($sp)
+	sw	$20,120($sp)
+	sw	$18,112($sp)
+	sw	$17,108($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	MDinit
+	sw	$19,116($sp)
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	strlen
+	move	$4,$16
+	.set	macro
+	.set	reorder
+
+	move	$18,$2
+	sltu	$2,$2,64
+	move	$17,$18
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$0,$L44
+	addiu	$20,$sp,16
+	.set	macro
+	.set	reorder
+
+	addiu	$19,$sp,40
+	addiu	$5,$20,24
+$L50:
+	li	$11,15			# 0xf
+$L37:
+	lbu	$2,3($16)
+	lbu	$3,2($16)
+	lbu	$4,1($16)
+	sll	$3,$3,16
+	sll	$2,$2,24
+	or	$2,$2,$3
+	sll	$4,$4,8
+	lbu	$3,0($16)
+	or	$2,$2,$4
+	or	$2,$2,$3
+	addiu	$11,$11,-1
+	sw	$2,0($5)
+	addiu	$16,$16,4
+	.set	noreorder
+	.set	nomacro
+	bgez	$11,$L37
+	addiu	$5,$5,4
+	.set	macro
+	.set	reorder
+
+	addiu	$17,$17,-64
+	addiu	$4,$sp,16
+	.set	noreorder
+	.set	nomacro
+	jal	compress
+	move	$5,$19
+	.set	macro
+	.set	reorder
+
+	sltu	$2,$17,64
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L50
+	addiu	$5,$20,24
+	.set	macro
+	.set	reorder
+
+$L44:
+	move	$5,$16
+	move	$6,$18
+	addiu	$4,$sp,16
+	.set	noreorder
+	.set	nomacro
+	jal	MDfinish
+	move	$7,$0
+	.set	macro
+	.set	reorder
+
+	move	$11,$0
+	la	$15,hashcode.0
+	la	$13,hashcode.0+1
+	la	$14,hashcode.0+2
+	la	$12,hashcode.0+3
+$L42:
+	srl	$2,$11,2
+	sll	$2,$2,2
+	addu	$2,$2,$20
+	lw	$3,0($2)
+	addu	$7,$11,$15
+	addu	$8,$11,$13
+	addu	$9,$11,$14
+	addu	$10,$11,$12
+	addiu	$11,$11,4
+	srl	$6,$3,24
+	srl	$2,$3,8
+	srl	$4,$3,16
+	sltu	$5,$11,20
+	sb	$3,0($7)
+	sb	$2,0($8)
+	sb	$4,0($9)
+	.set	noreorder
+	.set	nomacro
+	bne	$5,$0,$L42
+	sb	$6,0($10)
+	.set	macro
+	.set	reorder
+
+	lw	$31,124($sp)
+	lw	$20,120($sp)
+	lw	$19,116($sp)
+	lw	$18,112($sp)
+	lw	$17,108($sp)
+	lw	$16,104($sp)
+	la	$2,hashcode.0
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,128
+	.set	macro
+	.set	reorder
+
+	.end	RMD
+	.section	.rodata.str1.4,"aMS",@progbits,1
+	.align	2
+$LC0:
+	.ascii	"\r\n\000"
+	.align	2
+$LC1:
+	.ascii	"* message: \000"
+	.align	2
+$LC2:
+	.ascii	"  hashcode: \000"
+	.text
+	.align	2
+	.globl	RMDstring
+	.ent	RMDstring
+RMDstring:
+	.frame	$sp,40,$31		# vars= 8, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	lbu	$3,$LC0+2
+	lhu	$2,$LC0
+	addiu	$sp,$sp,-40
+	sw	$31,32($sp)
+	sb	$3,18($sp)
+	sw	$17,28($sp)
+	sw	$16,24($sp)
+	sh	$2,16($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	RMD
+	move	$16,$5
+	.set	macro
+	.set	reorder
+
+	addiu	$4,$sp,16
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$17,$2
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC1
+	jal	sputs
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$4,$16
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	addiu	$4,$sp,16
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC2
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$16,$0
+	.set	macro
+	.set	reorder
+
+	addu	$2,$17,$16
+$L58:
+	lb	$4,0($2)
+	.set	noreorder
+	.set	nomacro
+	jal	print_byte
+	addiu	$16,$16,1
+	.set	macro
+	.set	reorder
+
+	sltu	$2,$16,20
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$0,$L58
+	addu	$2,$17,$16
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	addiu	$4,$sp,16
+	.set	macro
+	.set	reorder
+
+	lw	$31,32($sp)
+	lw	$17,28($sp)
+	lw	$16,24($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,40
+	.set	macro
+	.set	reorder
+
+	.end	RMDstring
+	.rdata
+	.align	2
+$LC3:
+	.byte	-1
+	.byte	35
+	.byte	-100
+	.byte	-42
+	.byte	89
+	.byte	-118
+	.byte	121
+	.byte	46
+	.byte	-89
+	.byte	-85
+	.byte	108
+	.byte	-8
+	.byte	117
+	.byte	-74
+	.byte	53
+	.byte	94
+	.byte	93
+	.byte	-128
+	.byte	106
+	.byte	54
+	.section	.rodata.str1.4
+	.align	2
+$LC4:
+	.ascii	"MIPS R3000 CPU\000"
+	.align	2
+$LC5:
+	.ascii	"Failed\r\n\000"
+	.text
+	.align	2
+	.globl	main
+	.ent	main
+main:
+	.frame	$sp,88,$31		# vars= 48, regs= 5/0, args= 16, gp= 0
+	.mask	0x800f0000,-8
+	.fmask	0x00000000,0
+	lwl	$2,$LC3+3
+	lwl	$3,$LC3+7
+	lwr	$2,$LC3
+	lwr	$3,$LC3+4
+	lwl	$4,$LC3+11
+	lwl	$5,$LC3+15
+	lwl	$6,$LC3+19
+	addiu	$sp,$sp,-88
+	lwr	$4,$LC3+8
+	lwr	$5,$LC3+12
+	lwr	$6,$LC3+16
+	sw	$2,16($sp)
+	sw	$3,20($sp)
+	lw	$2,$LC4
+	lw	$3,$LC4+4
+	sw	$19,76($sp)
+	sw	$18,72($sp)
+	sw	$17,68($sp)
+	sw	$4,24($sp)
+	sw	$5,28($sp)
+	sw	$2,40($sp)
+	sw	$31,80($sp)
+	sw	$16,64($sp)
+	sw	$6,32($sp)
+	sw	$3,44($sp)
+	lw	$2,$LC4+8
+	lhu	$3,$LC4+12
+	sw	$2,48($sp)
+	lbu	$2,$LC4+14
+	sh	$3,52($sp)
+	sb	$2,54($sp)
+	lbu	$3,$LC0+2
+	lhu	$2,$LC0
+	li	$4,-2147483648			# 0xffffffff80000000
+	sh	$2,56($sp)
+	sb	$3,58($sp)
+	ori	$5,$4,0x9
+	li	$2,53
+	ori	$4,$4,0x8
+	li	$3,85
+	sb	$2,0($5)
+	move	$18,$0
+	sb	$3,0($4)
+	addiu	$19,$sp,56
+	addiu	$17,$sp,40
+$L60:
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$18
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$4,$19
+	.set	macro
+	.set	reorder
+
+	addiu	$18,$18,1
+	.set	noreorder
+	.set	nomacro
+	j	$L66
+	li	$16,32249			# 0x7df9
+	.set	macro
+	.set	reorder
+
+$L64:
+	.set	noreorder
+	.set	nomacro
+	bltz	$16,$L70
+	move	$4,$17
+	.set	macro
+	.set	reorder
+
+$L66:
+	.set	noreorder
+	.set	nomacro
+	jal	RMD
+	move	$4,$17
+	.set	macro
+	.set	reorder
+
+	move	$4,$2
+	addiu	$5,$sp,16
+	.set	noreorder
+	.set	nomacro
+	jal	memcmp
+	li	$6,20			# 0x14
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC5
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L64
+	addiu	$16,$16,-1
+	.set	macro
+	.set	reorder
+
+	jal	sputs
+	.set	noreorder
+	.set	nomacro
+	bgez	$16,$L66
+	move	$4,$17
+	.set	macro
+	.set	reorder
+
+$L70:
+	.set	noreorder
+	.set	nomacro
+	jal	RMDstring
+	move	$5,$17
+	.set	macro
+	.set	reorder
+
+	j	$L60
+	.end	main
@@ -0,0 +1,50 @@
+main:
+		li, $8, 0x81234678
+
+# SB
+		li, $15, 0x10000000
+		sw	$8, 0($15)
+		
+		
+		mfc0 $9, $12
+		li	$10, 0x02000000
+		or	$9, $9, $10
+		mtc0 $9, $12
+		lwl	$16, 0($15)
+		lwl	$17, 1($15)
+		lwl	$18, 2($15)
+		lwl	$19, 3($15)
+		nop
+		lwr	$24, 0($15)
+		lwr	$25, 1($15)
+		lwr	$26, 2($15)
+		lwr	$27, 3($15)
+		nop
+		lbu	$16, 0($15)
+		lbu	$17, 1($15)
+		lbu	$18, 2($15)
+		lbu	$19, 3($15)
+		nop
+		lb	$24, 0($15)
+		lb	$25, 1($15)
+		lb	$26, 2($15)
+		lb	$27, 3($15)
+		nop
+		swl	$8, 4($15)
+		swl	$8, 9($15)
+		swl	$8, 14($15)
+		swl	$8, 19($15)
+		nop
+		swr	$8, 20($15)
+		swr	$8, 25($15)
+		swr	$8, 30($15)
+		swr	$8, 35($15)
+		nop
+		sb	$8, 0($15)
+		sb	$8, 1($15)
+		sb	$8, 2($15)
+		sb	$8, 3($15)
+		nop
+		nop
+		nop
+		
@@ -0,0 +1,27 @@
+		.file	"startup.s"
+	
+		.section .stext,"ax"
+		.extern _init
+		.align	2
+	
+_start:
+		.set	noreorder
+
+		# Set Kernel mode
+		li		$26, 0x1040040C
+		mtc0	$26, $12
+		li		$26, 0x00000000
+		mtc0	$26, $13
+
+		mfc0	$26, $15
+		nop
+		mtc0	$26, $31
+
+		# jump init
+		la $26, _init
+		jr $26
+
+		# set user mode
+		rfe
+	
+		.set	reorder
@@ -0,0 +1,39 @@
+		.text
+		.globl	main
+		.globl	__start
+		
+__start:	j main
+
+main:		lui $1, 0x1234
+			ori $1, $1, 0x5678
+			andi $1, $1, 0xF00F
+			addi $1, -0x5004
+loop:		addi $1, -1		
+			bgtz $1, loop
+			lui $2, 0
+			ori $2, 1
+			lui $1, 0
+			ori $1, 4
+loop2:		sub	 $1, $1, $2
+			bgtz $1, loop2
+			lui  $31, 0x0040
+			jr   $31
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+
+			
@@ -0,0 +1,40 @@
+		.text
+		.globl	main
+		.globl	__start
+		
+__start:	j main
+
+main:		lui $1, 0x1234
+			ori $1, $1, 0x5678
+			lui $3, 0x5555
+			ori $3, $3, 0xAAAA
+			lui $2, 0x1000
+			sw	$1, 0($2)
+			sw	$3, 4($2)
+			sw	$2, 0($2)
+			sw	$1, 4($2)
+			lw  $1, 4($2)
+			lw  $4, 0($2)
+			lui $5, 0x0001
+			lui $6, 0x0002
+			lui $7, 0x0003
+			lui $8, 0x0004
+			add $4, $4, $5
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			j   main
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+
+			
@@ -0,0 +1,40 @@
+		.text
+		.globl	main
+		.globl	__start
+		
+__start:	j main
+
+main:		lui $1, 0x1234
+			ori $1, $1, 0x5A5A
+			sll $1, $1, 1
+			sll $1, $1, 4
+			sll $1, $1, 2
+			sll $1, $1, 1
+			sll $1, $1, 8
+			srl $1, $1, 2
+			srl $1, $1, 5
+			srl $1, $1, 1
+			srl $1, $1, 8
+			xori $1, $1, 0xFFFF
+			lui  $31, 0x0040
+			jr   $31
+			xor $1, $1, $31
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+
+			
@@ -0,0 +1,34 @@
+		.text
+		.globl	main
+		.globl	__start
+		
+__start:	j main
+
+main:		sll $0, $0, 0
+		lui $1, 0x1000
+		addi $2, $1, 0
+		lui $7, 0x1234
+		lui $5, 0x0001
+		sw	$7, 0($1)
+		lw  $3, 0($2)
+		add $8, $3, $5
+		add $9, $3, $5
+		add $10, $3, $5
+		add $11, $3, $5
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		j   main
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+		sll $0, $0, 0
+
+			
@@ -0,0 +1,39 @@
+		.text
+		.globl	main
+		.globl	__start
+		
+__start:	j main
+
+main:		lui $1, 0x8000
+			lui $2, 0
+			lui $3, 0
+			ori $2, 1
+			ori $3, 3
+			srl $1, $1, 1
+			sll $1, $1, 1
+			sra $1, $1, 1
+			sra $1, $1, 3
+			sllv $4, $1, $3
+			srav $5, $1, $2
+			srav $6, $1, $3
+			lui  $31, 0x0040
+			jr   $31
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+
+			
@@ -0,0 +1,31 @@
+		.text
+		.globl	main
+		.globl	__start
+		
+__start:	j main
+
+main:		lui $8, 0
+loop:		sll $0, $0, 0	
+			jal subr1
+			la $2, subr2
+			jalr $15, $2
+			sll $0, $0, 0
+			j	loop
+			
+subr1:		addi $8, 1
+			sll $0, $0, 0
+			jr   $31
+subr2:		addi $8, 16
+			sll $0, $0, 0
+			jr   $15
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+
+			
@@ -0,0 +1,17 @@
+
+main:		li $2, 0x12345678
+			li $3, 0x87654321
+			mult $2, $3
+			multu $2, $3
+			mult $3, $2
+			multu $3, $2
+			
+			mult $2, $2
+			multu $2, $2
+			mult $3, $3
+			multu $3, $3
+			
+			sll $0, $0, 0
+			j main
+			sll $0, $0, 0
+			
@@ -0,0 +1,76 @@
+		.text
+		.globl	main
+		.globl	__start
+		
+__start:	j main
+
+main:		li $2, 0x12345678
+			li $4, 0x12345678
+			li $6, 0x12345678
+			li $8, 0x12345678
+			li $3, 0x77654321
+			li $5, 0x77654321
+			li $7, 0x77654321
+			li $9, 0x77654321
+			addu $15, $2, $3
+			addu $15, $3, $2
+			addu $15, $2, $2
+			addu $15, $3, $3
+
+			sll $0, $0, 0
+
+			subu $15, $2, $3
+			subu $15, $3, $2
+			subu $15, $2, $2
+			subu $15, $3, $3
+
+			sll $0, $0, 0
+
+			addiu $4, 0x1234
+			addiu $8, -0x1234
+			addiu $5, 0x1234
+			addiu $9, -0x1234
+
+			sll $0, $0, 0
+
+			add $15, $2, $3
+			add $15, $3, $2
+			add $15, $2, $2
+			add $15, $3, $3
+
+			sll $0, $0, 0
+
+			sub $15, $2, $3
+			sub $15, $3, $2
+			sub $15, $2, $2
+			sub $15, $3, $3
+
+			sll $0, $0, 0
+
+			addi $2, 0x1234
+			addi $6, -0x1234
+			addi $3, 0x1234
+			addi $7, -0x1234
+
+			sll $0, $0, 0
+
+			j   main
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+			sll $0, $0, 0
+
+			
@@ -0,0 +1,17 @@
+main:
+		li $8, 0x12345678
+		li $9, 0x87654321
+		mthi $8
+		mfhi $10
+		addu $16, $10, $9
+
+		mtlo $9
+		mflo $11
+		multu $8, $9
+#		addu $17, $11, $8
+
+		nop
+		nop
+		nop
+		nop
+		
@@ -0,0 +1,57 @@
+#		.ktext 0x80000180
+		.text 0x00410000
+		.globl	main
+		
+main:		li $2, 0x12345678
+			li $3, 0x23456789
+			li $4, 0x87654321
+			li $5, 0x98765432
+			li $8, 0x10000000
+			sll $0, $0, 0
+
+			sltu $15, $2, $2
+			sltu $15, $2, $3
+			sltu $15, $2, $4
+			sltu $15, $2, $5
+			
+			sltu $15, $3, $2
+			sltu $15, $3, $3
+			sltu $15, $3, $4
+			sltu $15, $3, $5
+
+			sltu $15, $4, $2
+			sltu $15, $4, $3
+			sltu $15, $4, $4
+			sltu $15, $4, $5
+			
+			sltu $15, $5, $2
+			sltu $15, $5, $3
+			sltu $15, $5, $4
+			sltu $15, $5, $5
+
+			sll $0, $0, 0
+
+			slt $15, $2, $2
+			slt $15, $2, $3
+			slt $15, $2, $4
+			slt $15, $2, $5
+			
+			slt $15, $3, $2
+			slt $15, $3, $3
+			slt $15, $3, $4
+			slt $15, $3, $5
+
+			slt $15, $4, $2
+			slt $15, $4, $3
+			slt $15, $4, $4
+			slt $15, $4, $5
+			
+			slt $15, $5, $2
+			slt $15, $5, $3
+			slt $15, $5, $4
+			slt $15, $5, $5
+
+			sll $0, $0, 0
+
+			j   main
+			sll $0, $0, 0
@@ -0,0 +1,57 @@
+#		.ktext 0x80000180
+		.text 0x00410000
+		.globl	main
+		
+main:		li $2, 0x12345678
+			li $3, 0x23456789
+			li $4, 0x87654321
+			li $5, 0x98765432
+			li $8, 0x10000000
+			sll $0, $0, 0
+
+			sltiu $15, $2, 0x1234
+			sltiu $15, $2, 0x2345
+			sltiu $15, $2, -0x1234
+			sltiu $15, $2, -0x2345
+			
+			sltiu $15, $3, 0x1234
+			sltiu $15, $3, 0x2345
+			sltiu $15, $3, -0x1234
+			sltiu $15, $3, -0x2345
+
+			sltiu $15, $4, 0x1234
+			sltiu $15, $4, 0x2345
+			sltiu $15, $4, -0x1234
+			sltiu $15, $4, -0x2345
+			
+			sltiu $15, $5, 0x1234
+			sltiu $15, $5, 0x2345
+			sltiu $15, $5, -0x1234
+			sltiu $15, $5, -0x2345
+
+			sll $0, $0, 0
+
+			slti $15, $2, 0x1234
+			slti $15, $2, 0x2345
+			slti $15, $2, -0x1234
+			slti $15, $2, -0x2345
+			
+			slti $15, $3, 0x1234
+			slti $15, $3, 0x2345
+			slti $15, $3, -0x1234
+			slti $15, $3, -0x2345
+
+			slti $15, $4, 0x1234
+			slti $15, $4, 0x2345
+			slti $15, $4, -0x1234
+			slti $15, $4, -0x2345
+			
+			slti $15, $5, 0x1234
+			slti $15, $5, 0x2345
+			slti $15, $5, -0x1234
+			slti $15, $5, -0x2345
+
+			sll $0, $0, 0
+
+			j   main
+			sll $0, $0, 0
@@ -0,0 +1,57 @@
+#		.ktext 0x80000180
+		.text 0x00410000
+		.globl	main
+		
+main:		li $2, 0x12345678
+			li $3, 0x23456789
+			li $4, 0x87654321
+			li $5, 0x98765432
+			li $8, 0x10000000
+			sll $0, $0, 0
+
+			subu $15, $2, $2
+			subu $15, $2, $3
+			subu $15, $2, $4
+			subu $15, $2, $5
+			
+			subu $15, $3, $2
+			subu $15, $3, $3
+			subu $15, $3, $4
+			subu $15, $3, $5
+
+			subu $15, $4, $2
+			subu $15, $4, $3
+			subu $15, $4, $4
+			subu $15, $4, $5
+			
+			subu $15, $5, $2
+			subu $15, $5, $3
+			subu $15, $5, $4
+			subu $15, $5, $5
+
+			sll $0, $0, 0
+
+			sub $15, $2, $2
+			sub $15, $2, $3
+			sub $15, $2, $4
+			sub $15, $2, $5
+			
+			sub $15, $3, $2
+			sub $15, $3, $3
+			sub $15, $3, $4
+			sub $15, $3, $5
+
+			sub $15, $4, $2
+			sub $15, $4, $3
+			sub $15, $4, $4
+			sub $15, $4, $5
+			
+			sub $15, $5, $2
+			sub $15, $5, $3
+			sub $15, $5, $4
+			sub $15, $5, $5
+
+			sll $0, $0, 0
+
+			j   main
+			sll $0, $0, 0
@@ -0,0 +1,322 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "utils.h"
+
+#define	NO_ERROR		0x00000000
+#define	ERROR			0x80000000
+#define	IS_ERROR(e)		((e & ERROR) == ERROR)
+
+#define	TEST10_ERROR	(ERROR | 0x10)
+#define	TEST11_ERROR	(ERROR | 0x11)
+#define	TEST12_ERROR	(ERROR | 0x12)
+
+int fibonacci(int f0, int f1, int *pDst, int len)
+{
+	int i;
+
+	i = 0;
+
+	pDst[i++] = f0;
+	pDst[i++] = f1;
+
+	for (; i < len; i++)
+	{
+		pDst[i] = pDst[i-2] + pDst[i-1];
+	}
+
+	return i;
+}
+
+int StatusRegister_read(void)
+{
+	__asm
+	(
+		".set	noreorder\n"
+		"mfc0   $2, $12\n"
+		".set	reorder\n"
+
+	);
+}
+
+int RevisionRegister_read(void)
+{
+	__asm
+	(
+		".set	noreorder\n"
+		"mfc0   $2, $15\n"
+		".set	reorder\n"
+
+	);
+}
+
+void PrintCPUinfo(void)
+{
+	int result, rev_id;
+
+	char *cpu_type_str[7] = {"invalid", "R2000", "R3000", "R6000", "R4000", "reserved", "R6000A"};
+
+	// Print Status register
+	result = StatusRegister_read();
+	sputs("Status  : ");
+	print_word(result);
+	sputs("\r\n");
+
+	// Print Revision
+	result = RevisionRegister_read();
+	rev_id = (result >> 8) & 0xFF;
+	sputs("CPU type: ");
+	if ((rev_id > 0) && (rev_id < 0x07))
+	{
+		sputs(cpu_type_str[rev_id]);
+		sputs(" Rev.");
+		rev_id = result & 0xFF;
+		print_byte((char)rev_id);
+	}
+	else
+		sputs("Unknown");
+
+	sputs("\r\n");
+
+}
+
+int Test10_LoadStore()
+{
+	int *buf, i, result, data, err;
+	volatile int *pPtr;
+
+	buf = (int*)malloc(32*sizeof(int));
+	while(1)
+	{
+		err = TEST10_ERROR;
+		// Basic Load/Store
+		pPtr = buf;
+		*pPtr++ = 0x00000000;
+		*pPtr++ = 0x55555555;
+		*pPtr++ = 0xAAAAAAAA;
+		*pPtr++ = 0xFFFFFFFF;
+		pPtr = buf;
+		if (*pPtr++ != 0x00000000)
+			break;
+		if (*pPtr++ != 0x55555555)
+			break;
+		if (*pPtr++ != 0xAAAAAAAA)
+			break;
+		if (*pPtr++ != 0xFFFFFFFF)
+			break;
+
+		// Filling from left
+		pPtr = buf;
+		data = 0x00000000;
+		for (i=0; i < 32; i++)
+		{
+			*pPtr++ = data;
+			data = data >> 1 | 0x80000000;
+
+		}
+		pPtr = buf;
+		data = 0x00000000;
+		for (i=0; i < 32; i++)
+		{
+
+			if (*pPtr++ != data)
+				break;
+
+			data = data >> 1 | 0x80000000;
+		}
+		if (i != 32)
+			break;
+
+		// Filling from right
+		pPtr = buf;
+		data = 0x00000000;
+		for (i=0; i < 32; i++)
+		{
+			*pPtr++ = data;
+			data = data << 1 | 1;
+
+		}
+		pPtr = buf;
+		data = 0x00000000;
+		for (i=0; i < 32; i++)
+		{
+
+			if (*pPtr++ != data)
+				break;
+
+			data = data << 1 | 1;
+		}
+		if (i != 32)
+			break;
+
+		// Walking ones
+		pPtr = buf;
+		data = 0x00000001;
+		for (i=0; i < 32; i++)
+		{
+			*pPtr++ = data;
+			data = data << 1;
+
+		}
+		pPtr = buf;
+		data = 0x00000001;
+		for (i=0; i < 32; i++)
+		{
+
+			if (*pPtr++ != data)
+				break;
+
+			data = data << 1;
+		}
+		if (i != 32)
+			break;
+
+		// Walking zeros
+		pPtr = buf;
+		data = 0xFFFFFFFE;
+		for (i=0; i < 32; i++)
+		{
+			*pPtr++ = data;
+			data = data << 1 | 1;
+
+		}
+		pPtr = buf;
+		data = 0xFFFFFFFE;
+		for (i=0; i < 32; i++)
+		{
+
+			if (*pPtr++ != data)
+				break;
+
+			data = data << 1 | 1;
+
+		}
+		if (i != 32)
+			break;
+
+		err = NO_ERROR;
+		break;
+	}
+	free(buf);
+	return err;
+
+}
+
+
+#define	NUM_ELEMENTS	20
+#define	NUM_RUNS		3
+int Test11_AddSub()
+{
+	int buf[NUM_ELEMENTS], result, i, j, diff, fill, num_right_elements, num_right_runs;
+
+	fill = 0xAAAAAAAA;
+
+	num_right_runs = 0;
+
+	for (i=0; i < NUM_RUNS; i++)
+	{
+		for (j=0;  j < NUM_ELEMENTS; j++)
+			buf[j] = fill;
+
+		fill = ((fill ^ i) - 1) << 1;
+		num_right_elements = 2;
+		result = fibonacci(i, i+1, buf, NUM_ELEMENTS);
+		for (j=2;  j < NUM_ELEMENTS; j++)
+		{
+			diff = buf[j] - buf[j-1];
+			if (diff == buf[j-2])
+				num_right_elements++;
+		}
+		if (num_right_elements == NUM_ELEMENTS)
+			num_right_runs++;
+	}
+
+	if (num_right_runs != NUM_RUNS)
+		return TEST11_ERROR;
+
+	return NO_ERROR;
+}
+
+int Test12_MulDiv()
+{
+	int mix, i, j;
+	int s1, s2, sp, st;
+	div_t div_res;
+
+	srand(0x19701031);
+	for (i=0; i < 100; 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;
+
+			div_res = div(s1, s2);
+
+			sp = s2*div_res.quot;
+			st = div_res.rem + sp;
+			if (st != s1)
+				return TEST12_ERROR;
+		}
+	}
+	return NO_ERROR;
+}
+
+int main (void)
+{
+	int result, i, j, cnt;
+	volatile char *pUART_baud = (char*)0x80000009;
+	volatile int *pReg = (int*)0x80000000;
+	volatile int *pReg_usec = (int*)0x80000010;
+	volatile int *pReg_sec = (int*)0x80000014;
+	time_t clock;
+	struct tm *pDate;
+//	*pUART_baud = 0x35/4;
+
+	PrintCPUinfo();
+
+	cnt = 0;
+//	*pReg_sec = 0x12345678;
+	while (1)
+	{
+		*pReg = cnt & 0x3FFFFFFF;
+
+		result = Test10_LoadStore();
+		if (IS_ERROR(result))
+			break;
+
+		result = Test11_AddSub();
+		if (IS_ERROR(result))
+			break;
+
+		result = Test12_MulDiv();
+		if (IS_ERROR(result))
+			break;
+
+//		printf("Iteration %d: Passed\r\n", cnt++);
+		sputs("Iteration ");
+		print_word(cnt++);
+		sputs(": Passed\r\n");
+
+		clock = time(NULL);
+		pDate = gmtime(&clock);
+		print_byte(pDate->tm_hour);
+		sputs(":");
+		print_byte(pDate->tm_min);
+		sputs(":");
+		print_byte(pDate->tm_sec);
+		sputs("\r\n");
+	}
+	*pReg = 0x40000000 | cnt;
+	sputs("Failed with error ");
+	print_word(result);
+	sputs(" \r\n");
+
+	return 1;
+
+}
+
@@ -0,0 +1,924 @@
+	.file	1 "testbench.c"
+	.set	nobopt
+	.text
+	.align	2
+	.globl	fibonacci
+	.ent	fibonacci
+fibonacci:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$8,2			# 0x2
+	slt	$2,$8,$7
+	sw	$4,0($6)
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L7
+	sw	$5,4($6)
+	.set	macro
+	.set	reorder
+
+	addiu	$6,$6,8
+$L5:
+	lw	$2,-8($6)
+	lw	$3,-4($6)
+	addiu	$8,$8,1
+	addu	$2,$2,$3
+	slt	$4,$8,$7
+	sw	$2,0($6)
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$0,$L5
+	addiu	$6,$6,4
+	.set	macro
+	.set	reorder
+
+$L7:
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	move	$2,$8
+	.set	macro
+	.set	reorder
+
+	.end	fibonacci
+	.align	2
+	.globl	StatusRegister_read
+	.ent	StatusRegister_read
+StatusRegister_read:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+ #APP
+	.set	noreorder
+mfc0   $2, $12
+.set	reorder
+
+ #NO_APP
+	j	$31
+	.end	StatusRegister_read
+	.align	2
+	.globl	RevisionRegister_read
+	.ent	RevisionRegister_read
+RevisionRegister_read:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+ #APP
+	.set	noreorder
+mfc0   $2, $15
+.set	reorder
+
+ #NO_APP
+	j	$31
+	.end	RevisionRegister_read
+	.section	.rodata.str1.4,"aMS",@progbits,1
+	.align	2
+$LC0:
+	.ascii	"invalid\000"
+	.align	2
+$LC1:
+	.ascii	"R2000\000"
+	.align	2
+$LC2:
+	.ascii	"R3000\000"
+	.align	2
+$LC3:
+	.ascii	"R6000\000"
+	.align	2
+$LC4:
+	.ascii	"R4000\000"
+	.align	2
+$LC5:
+	.ascii	"reserved\000"
+	.align	2
+$LC6:
+	.ascii	"R6000A\000"
+	.rdata
+	.align	2
+$LC7:
+	.word	$LC0
+	.word	$LC1
+	.word	$LC2
+	.word	$LC3
+	.word	$LC4
+	.word	$LC5
+	.word	$LC6
+	.section	.rodata.str1.4
+	.align	2
+$LC8:
+	.ascii	"Status  : \000"
+	.align	2
+$LC9:
+	.ascii	"\r\n\000"
+	.align	2
+$LC10:
+	.ascii	"CPU type: \000"
+	.align	2
+$LC12:
+	.ascii	"Unknown\000"
+	.align	2
+$LC11:
+	.ascii	" Rev.\000"
+	.text
+	.align	2
+	.globl	PrintCPUinfo
+	.ent	PrintCPUinfo
+PrintCPUinfo:
+	.frame	$sp,64,$31		# vars= 32, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	lw	$2,$LC7
+	addiu	$sp,$sp,-64
+	lw	$3,$LC7+4
+	sw	$2,16($sp)
+	lw	$2,$LC7+8
+	sw	$3,20($sp)
+	sw	$2,24($sp)
+	lw	$3,$LC7+12
+	lw	$2,$LC7+16
+	sw	$3,28($sp)
+	sw	$2,32($sp)
+	lw	$3,$LC7+20
+	lw	$2,$LC7+24
+	sw	$3,36($sp)
+	sw	$31,56($sp)
+	sw	$17,52($sp)
+	sw	$16,48($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	StatusRegister_read
+	sw	$2,40($sp)
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC8
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$17,$2
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$17
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC9
+	jal	sputs
+	jal	RevisionRegister_read
+	sra	$16,$2,8
+	andi	$16,$16,0xff
+	la	$4,$LC10
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	move	$17,$2
+	.set	macro
+	.set	reorder
+
+	sll	$3,$16,2
+	addiu	$16,$16,-1
+	sltu	$16,$16,6
+	la	$4,$LC12
+	.set	noreorder
+	.set	nomacro
+	beq	$16,$0,$L12
+	addu	$2,$sp,$3
+	.set	macro
+	.set	reorder
+
+	lw	$4,16($2)
+	jal	sputs
+	la	$4,$LC11
+	jal	sputs
+	sll	$4,$17,24
+	.set	noreorder
+	.set	nomacro
+	jal	print_byte
+	sra	$4,$4,24
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC9
+	jal	sputs
+	lw	$31,56($sp)
+	lw	$17,52($sp)
+	lw	$16,48($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,64
+	.set	macro
+	.set	reorder
+
+$L12:
+	jal	sputs
+	la	$4,$LC9
+	jal	sputs
+	lw	$31,56($sp)
+	lw	$17,52($sp)
+	lw	$16,48($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,64
+	.set	macro
+	.set	reorder
+
+	.end	PrintCPUinfo
+	.align	2
+	.globl	Test10_LoadStore
+	.ent	Test10_LoadStore
+Test10_LoadStore:
+	.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
+	.mask	0x80010000,-4
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-24
+	li	$4,128			# 0x80
+	sw	$31,20($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	malloc
+	sw	$16,16($sp)
+	.set	macro
+	.set	reorder
+
+	move	$4,$2
+	li	$2,1431633920			# 0x55550000
+	li	$3,-1431699456			# 0xffffffffaaaa0000
+	ori	$5,$2,0x5555
+	ori	$6,$3,0xaaaa
+	li	$7,-1			# 0xffffffffffffffff
+	sw	$0,0($4)
+	sw	$5,4($4)
+	sw	$6,8($4)
+	sw	$7,12($4)
+	lw	$3,0($4)
+	li	$2,-2147483648			# 0xffffffff80000000
+	.set	noreorder
+	.set	nomacro
+	bne	$3,$0,$L16
+	ori	$16,$2,0x10
+	.set	macro
+	.set	reorder
+
+	lw	$2,4($4)
+	beq	$2,$5,$L73
+$L16:
+	jal	free
+	move	$2,$16
+	lw	$31,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,24
+	.set	macro
+	.set	reorder
+
+$L73:
+	lw	$2,8($4)
+	bne	$2,$6,$L16
+	lw	$2,12($4)
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$7,$L16
+	move	$3,$4
+	.set	macro
+	.set	reorder
+
+	move	$5,$0
+	li	$7,-2147483648			# 0xffffffff80000000
+	li	$6,31			# 0x1f
+$L24:
+	sra	$2,$5,1
+	addiu	$6,$6,-1
+	sw	$5,0($3)
+	addiu	$3,$3,4
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L24
+	or	$5,$2,$7
+	.set	macro
+	.set	reorder
+
+	move	$3,$4
+	move	$5,$0
+	move	$6,$0
+	.set	noreorder
+	.set	nomacro
+	j	$L29
+	li	$8,-2147483648			# 0xffffffff80000000
+	.set	macro
+	.set	reorder
+
+$L74:
+	addiu	$6,$6,1
+	slt	$2,$6,32
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L26
+	or	$5,$7,$8
+	.set	macro
+	.set	reorder
+
+$L29:
+	lw	$2,0($3)
+	sra	$7,$5,1
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$5,$L74
+	addiu	$3,$3,4
+	.set	macro
+	.set	reorder
+
+$L26:
+	li	$2,32			# 0x20
+	.set	noreorder
+	.set	nomacro
+	bne	$6,$2,$L16
+	move	$3,$4
+	.set	macro
+	.set	reorder
+
+	move	$5,$0
+	li	$6,31			# 0x1f
+$L34:
+	sll	$2,$5,1
+	addiu	$6,$6,-1
+	sw	$5,0($3)
+	addiu	$3,$3,4
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L34
+	ori	$5,$2,0x1
+	.set	macro
+	.set	reorder
+
+	move	$3,$4
+	move	$5,$0
+	.set	noreorder
+	.set	nomacro
+	j	$L39
+	move	$6,$0
+	.set	macro
+	.set	reorder
+
+$L75:
+	addiu	$6,$6,1
+	slt	$2,$6,32
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L36
+	ori	$5,$7,0x1
+	.set	macro
+	.set	reorder
+
+$L39:
+	lw	$2,0($3)
+	sll	$7,$5,1
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$5,$L75
+	addiu	$3,$3,4
+	.set	macro
+	.set	reorder
+
+$L36:
+	li	$2,32			# 0x20
+	.set	noreorder
+	.set	nomacro
+	bne	$6,$2,$L16
+	move	$3,$4
+	.set	macro
+	.set	reorder
+
+	li	$5,1			# 0x1
+	li	$6,31			# 0x1f
+$L44:
+	addiu	$6,$6,-1
+	sw	$5,0($3)
+	addiu	$3,$3,4
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L44
+	sll	$5,$5,1
+	.set	macro
+	.set	reorder
+
+	move	$3,$4
+	li	$5,1			# 0x1
+	.set	noreorder
+	.set	nomacro
+	j	$L49
+	move	$6,$0
+	.set	macro
+	.set	reorder
+
+$L76:
+	addiu	$6,$6,1
+	slt	$2,$6,32
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L46
+	sll	$5,$5,1
+	.set	macro
+	.set	reorder
+
+$L49:
+	lw	$2,0($3)
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$5,$L76
+	addiu	$3,$3,4
+	.set	macro
+	.set	reorder
+
+$L46:
+	li	$2,32			# 0x20
+	.set	noreorder
+	.set	nomacro
+	bne	$6,$2,$L16
+	move	$3,$4
+	.set	macro
+	.set	reorder
+
+	li	$5,-2			# 0xfffffffffffffffe
+	li	$6,31			# 0x1f
+$L54:
+	sll	$2,$5,1
+	addiu	$6,$6,-1
+	sw	$5,0($3)
+	addiu	$3,$3,4
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L54
+	ori	$5,$2,0x1
+	.set	macro
+	.set	reorder
+
+	move	$3,$4
+	li	$5,-2			# 0xfffffffffffffffe
+	.set	noreorder
+	.set	nomacro
+	j	$L59
+	move	$6,$0
+	.set	macro
+	.set	reorder
+
+$L77:
+	addiu	$6,$6,1
+	slt	$2,$6,32
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$0,$L56
+	ori	$5,$7,0x1
+	.set	macro
+	.set	reorder
+
+$L59:
+	lw	$2,0($3)
+	sll	$7,$5,1
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$5,$L77
+	addiu	$3,$3,4
+	.set	macro
+	.set	reorder
+
+$L56:
+	li	$2,32			# 0x20
+	bne	$6,$2,$L16
+	.set	noreorder
+	.set	nomacro
+	j	$L16
+	move	$16,$0
+	.set	macro
+	.set	reorder
+
+	.end	Test10_LoadStore
+	.align	2
+	.globl	Test11_AddSub
+	.ent	Test11_AddSub
+Test11_AddSub:
+	.frame	$sp,120,$31		# vars= 80, regs= 5/0, args= 16, gp= 0
+	.mask	0x800f0000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-120
+	li	$2,-1431699456			# 0xffffffffaaaa0000
+	sw	$19,108($sp)
+	sw	$18,104($sp)
+	sw	$16,96($sp)
+	sw	$31,112($sp)
+	sw	$17,100($sp)
+	ori	$16,$2,0xaaaa
+	move	$19,$0
+	move	$4,$0
+	addiu	$18,$sp,16
+$L92:
+	move	$2,$18
+	li	$6,19			# 0x13
+$L85:
+	addiu	$6,$6,-1
+	sw	$16,0($2)
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L85
+	addiu	$2,$2,4
+	.set	macro
+	.set	reorder
+
+	xor	$2,$16,$4
+	addiu	$17,$4,1
+	addiu	$2,$2,-1
+	move	$5,$17
+	addiu	$6,$sp,16
+	li	$7,20			# 0x14
+	.set	noreorder
+	.set	nomacro
+	jal	fibonacci
+	sll	$16,$2,1
+	.set	macro
+	.set	reorder
+
+	li	$7,2			# 0x2
+	addiu	$5,$18,8
+	.set	noreorder
+	.set	nomacro
+	j	$L90
+	li	$6,17			# 0x11
+	.set	macro
+	.set	reorder
+
+$L88:
+	bltz	$6,$L100
+$L90:
+	lw	$2,0($5)
+	lw	$3,-4($5)
+	lw	$4,-8($5)
+	subu	$2,$2,$3
+	addiu	$6,$6,-1
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$2,$L88
+	addiu	$5,$5,4
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	bgez	$6,$L90
+	addiu	$7,$7,1
+	.set	macro
+	.set	reorder
+
+$L100:
+	li	$6,20			# 0x14
+	beq	$7,$6,$L101
+$L81:
+	slt	$2,$17,3
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$0,$L92
+	move	$4,$17
+	.set	macro
+	.set	reorder
+
+	li	$2,3			# 0x3
+	.set	noreorder
+	.set	nomacro
+	bne	$19,$2,$L102
+	move	$3,$0
+	.set	macro
+	.set	reorder
+
+	lw	$31,112($sp)
+	lw	$19,108($sp)
+	lw	$18,104($sp)
+	lw	$17,100($sp)
+	lw	$16,96($sp)
+	move	$2,$3
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,120
+	.set	macro
+	.set	reorder
+
+$L101:
+	.set	noreorder
+	.set	nomacro
+	j	$L81
+	addiu	$19,$19,1
+	.set	macro
+	.set	reorder
+
+$L102:
+	li	$2,-2147483648			# 0xffffffff80000000
+	ori	$3,$2,0x11
+	lw	$31,112($sp)
+	lw	$19,108($sp)
+	lw	$18,104($sp)
+	lw	$17,100($sp)
+	lw	$16,96($sp)
+	move	$2,$3
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,120
+	.set	macro
+	.set	reorder
+
+	.end	Test11_AddSub
+	.align	2
+	.globl	Test12_MulDiv
+	.ent	Test12_MulDiv
+Test12_MulDiv:
+	.frame	$sp,48,$31		# vars= 8, regs= 5/0, args= 16, gp= 0
+	.mask	0x800f0000,-8
+	.fmask	0x00000000,0
+	li	$4,426770432			# 0x19700000
+	addiu	$sp,$sp,-48
+	ori	$4,$4,0x1031
+	sw	$19,36($sp)
+	sw	$31,40($sp)
+	sw	$18,32($sp)
+	sw	$17,28($sp)
+	sw	$16,24($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	srand
+	move	$19,$0
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	j	$L111
+	li	$18,1			# 0x1
+	.set	macro
+	.set	reorder
+
+$L109:
+	beq	$4,$0,$L117
+$L111:
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	addiu	$18,$18,1
+	.set	macro
+	.set	reorder
+
+	sll	$3,$2,16
+	sll	$2,$2,8
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	xor	$16,$2,$3
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	xor	$17,$2,$16
+	.set	macro
+	.set	reorder
+
+	sll	$3,$2,16
+	sll	$2,$2,8
+	.set	noreorder
+	.set	nomacro
+	jal	rand
+	xor	$16,$2,$3
+	.set	macro
+	.set	reorder
+
+	xor	$16,$2,$16
+	addiu	$4,$sp,16
+	move	$5,$17
+	.set	noreorder
+	.set	nomacro
+	jal	div
+	move	$6,$16
+	.set	macro
+	.set	reorder
+
+	lw	$3,16($sp)
+	lw	$2,20($sp)
+	mult	$3,$16
+	mflo	$3
+	addu	$2,$2,$3
+	.set	noreorder
+	.set	nomacro
+	beq	$2,$17,$L109
+	slt	$4,$18,1000
+	.set	macro
+	.set	reorder
+
+	li	$2,-2147483648			# 0xffffffff80000000
+	ori	$2,$2,0x12
+$L103:
+	lw	$31,40($sp)
+	lw	$19,36($sp)
+	lw	$18,32($sp)
+	lw	$17,28($sp)
+	lw	$16,24($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,48
+	.set	macro
+	.set	reorder
+
+$L117:
+	addiu	$19,$19,1
+	slt	$2,$19,100
+	.set	noreorder
+	.set	nomacro
+	bne	$2,$0,$L111
+	li	$18,1			# 0x1
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	j	$L103
+	move	$2,$0
+	.set	macro
+	.set	reorder
+
+	.end	Test12_MulDiv
+	.section	.rodata.str1.4
+	.align	2
+$LC13:
+	.ascii	"Iteration %d: Passed\r\n\000"
+	.align	2
+$LC14:
+	.ascii	"Iteration \000"
+	.align	2
+$LC15:
+	.ascii	": Passed\r\n\000"
+	.align	2
+$LC16:
+	.ascii	":\000"
+	.align	2
+$LC17:
+	.ascii	"Failed with error \000"
+	.align	2
+$LC18:
+	.ascii	" \r\n\000"
+	.text
+	.align	2
+	.globl	main
+	.ent	main
+main:
+	.frame	$sp,48,$31		# vars= 8, regs= 5/0, args= 16, gp= 0
+	.mask	0x800f0000,-8
+	.fmask	0x00000000,0
+	li	$3,-2147483648			# 0xffffffff80000000
+	li	$2,13
+	ori	$3,$3,0x9
+	addiu	$sp,$sp,-48
+	sb	$2,0($3)
+	sw	$19,36($sp)
+	sw	$18,32($sp)
+	sw	$17,28($sp)
+	sw	$31,40($sp)
+	.set	noreorder
+	.set	nomacro
+	jal	PrintCPUinfo
+	sw	$16,24($sp)
+	.set	macro
+	.set	reorder
+
+	li	$2,1073676288			# 0x3fff0000
+	ori	$19,$2,0xffff
+	li	$18,-2147483648			# 0xffffffff80000000
+	.set	noreorder
+	.set	nomacro
+	j	$L119
+	move	$17,$0
+	.set	macro
+	.set	reorder
+
+$L124:
+	jal	Test11_AddSub
+	.set	noreorder
+	.set	nomacro
+	bltz	$2,$L120
+	move	$16,$2
+	.set	macro
+	.set	reorder
+
+	jal	Test12_MulDiv
+	move	$16,$2
+	la	$4,$LC13
+	.set	noreorder
+	.set	nomacro
+	bltz	$2,$L120
+	move	$5,$17
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	printf
+	addiu	$17,$17,1
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC14
+	jal	sputs
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$17
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC15
+	.set	noreorder
+	.set	nomacro
+	jal	sputs
+	addiu	$17,$17,1
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	jal	time
+	move	$4,$0
+	.set	macro
+	.set	reorder
+
+	addiu	$4,$sp,16
+	.set	noreorder
+	.set	nomacro
+	jal	gmtime
+	sw	$2,16($sp)
+	.set	macro
+	.set	reorder
+
+	lb	$4,8($2)
+	.set	noreorder
+	.set	nomacro
+	jal	print_byte
+	move	$16,$2
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC16
+	jal	sputs
+	lb	$4,4($16)
+	jal	print_byte
+	la	$4,$LC16
+	jal	sputs
+	lb	$4,0($16)
+	jal	print_byte
+	la	$4,$LC9
+	jal	sputs
+$L119:
+	and	$2,$17,$19
+	sw	$2,0($18)
+	jal	Test10_LoadStore
+	.set	noreorder
+	.set	nomacro
+	bgez	$2,$L124
+	move	$16,$2
+	.set	macro
+	.set	reorder
+
+$L120:
+	li	$2,1073741824			# 0x40000000
+	or	$2,$17,$2
+	la	$4,$LC17
+	sw	$2,0($18)
+	jal	sputs
+	.set	noreorder
+	.set	nomacro
+	jal	print_word
+	move	$4,$16
+	.set	macro
+	.set	reorder
+
+	la	$4,$LC18
+	jal	sputs
+	lw	$31,40($sp)
+	lw	$19,36($sp)
+	lw	$18,32($sp)
+	lw	$17,28($sp)
+	lw	$16,24($sp)
+	li	$2,1			# 0x1
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,48
+	.set	macro
+	.set	reorder
+
+	.end	main
@@ -0,0 +1,179 @@
+#include <sys/times.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+
+char readchar(void)
+{
+	volatile char *pUART_stat = (char*)0x80000008;
+	volatile char *pUART_data = (char*)0x80000004;
+
+	while(!(0x10 & *pUART_stat));
+
+	return *pUART_data;
+}
+
+void writechar(char c)
+{
+	volatile char *pUART_stat = (char*)0x80000008;
+	volatile char *pUART_data = (char*)0x80000004;
+
+	while((0x02 & *pUART_stat) != 0);
+
+	*pUART_data = c;
+}
+
+clock_t times(struct tms *buffer)
+{
+	volatile long *pReg_usec = (long*)0x80000010;
+	volatile long *pReg_sec = (long*)0x80000014;
+	long sec;
+
+	sec = *pReg_sec;
+
+	if (buffer)
+	{
+		buffer->tms_utime = sec;
+		buffer->tms_stime = 0;
+		buffer->tms_cutime = 0;
+		buffer->tms_cstime = 0;
+	}
+
+	return (clock_t)sec;
+}
+
+int gettimeofday(struct timeval *tp, void *tzp)
+{
+	volatile long *pReg_usec = (long*)0x80000010;
+	volatile long *pReg_sec = (long*)0x80000014;
+
+	if (tp)
+	{
+		tp->tv_sec = *pReg_sec;
+		tp->tv_usec = *pReg_usec;
+	}
+
+	return 0;
+}
+
+int settimeofday(const struct timeval *tp, const struct timezone *tzp)
+{
+	volatile long *pReg_usec = (long*)0x80000010;
+	volatile long *pReg_sec = (long*)0x80000014;
+	div_t res;
+
+	res = div(tp->tv_usec, 1E6);
+
+	if (tp)
+	{
+		*pReg_usec = res.rem;
+		*pReg_sec  = tp->tv_sec + res.quot;
+	}
+
+	return 0;
+}
+
+caddr_t sbrk(int incr)
+{
+	extern char end;
+	static char *heap_end;
+	char *prev_heap_end;
+
+	if (heap_end == 0)
+		heap_end = &end;
+
+	prev_heap_end = heap_end;
+//	if (heap_end + incr > stack_ptr)
+//	{
+//		_write(1, "Heap and stack collision\n", 25);
+//		abort();
+//	}
+
+	heap_end += incr;
+	return (caddr_t) prev_heap_end;
+}
+
+int fstat(int file, struct stat *st)
+{
+	st->st_mode = S_IFCHR;
+	return 0;
+}
+
+int lseek(int file, int ptr, int dir)
+{
+	return 0;
+}
+
+int open(const char *name, int flags, int mode)
+{
+	return -1;
+}
+
+int close(int file)
+{
+	return -1;
+}
+
+int read(int file, char *ptr, int len)
+{
+	return 0;
+}
+
+int write(int file, char *ptr, int len)
+{
+	int i;
+
+	for (i=0; i < len; i++)
+		writechar(*ptr++);
+
+	return i;
+}
+
+int isatty(int file)
+{
+	return 1;
+}
+
+int sputs(char *pStr)
+{
+	char *start;
+	start = pStr;
+
+	while(*pStr)
+		writechar(*(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;
+
+		writechar(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;
+	}
+}
+
@@ -0,0 +1,12 @@
+#ifndef UTILS_H
+#define UTILS_H
+
+char readchar(void);
+void writechar(char c);
+int write(int file, char *ptr, int len);
+int sputs(char *pStr);
+void print_byte(char byte);
+void print_word(int word);
+
+#endif // UTILS_H
+
@@ -0,0 +1,184 @@
+	.file	1 "utils.c"
+	.set	nobopt
+	.text
+	.align	2
+	.globl	sein
+	.ent	sein
+sein:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	ori	$4,$2,0x4
+	ori	$3,$2,0x8
+$L2:
+	lbu	$2,0($3)
+	andi	$2,$2,0x10
+	beq	$2,$0,$L2
+	lbu	$2,0($4)
+	sll	$2,$2,24
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	sra	$2,$2,24
+	.set	macro
+	.set	reorder
+
+	.end	sein
+	.align	2
+	.globl	saus
+	.ent	saus
+saus:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	li	$2,-2147483648			# 0xffffffff80000000
+	sll	$4,$4,24
+	sra	$4,$4,24
+	ori	$5,$2,0x4
+	ori	$3,$2,0x8
+$L6:
+	lbu	$2,0($3)
+	andi	$2,$2,0x2
+	bne	$2,$0,$L6
+	sb	$4,0($5)
+	j	$31
+	.end	saus
+	.align	2
+	.globl	sputs
+	.ent	sputs
+sputs:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	lb	$4,0($4)
+	.set	noreorder
+	.set	nomacro
+	j	$L14
+	move	$17,$16
+	.set	macro
+	.set	reorder
+
+$L15:
+	.set	noreorder
+	.set	nomacro
+	jal	saus
+	addiu	$16,$16,1
+	.set	macro
+	.set	reorder
+
+	lb	$4,0($16)
+$L14:
+	.set	noreorder
+	.set	nomacro
+	bne	$4,$0,$L15
+	subu	$2,$16,$17
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	sputs
+	.align	2
+	.globl	print_byte
+	.ent	print_byte
+print_byte:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$16,16($sp)
+	sll	$16,$4,24
+	sw	$17,20($sp)
+	sw	$31,24($sp)
+	sra	$16,$16,24
+	li	$17,1			# 0x1
+	sra	$2,$16,4
+$L25:
+	andi	$5,$2,0xf
+	sll	$2,$16,4
+	sll	$16,$2,24
+	sltu	$3,$5,10
+	addiu	$17,$17,-1
+	sra	$16,$16,24
+	.set	noreorder
+	.set	nomacro
+	bne	$3,$0,$L21
+	addiu	$4,$5,48
+	.set	macro
+	.set	reorder
+
+	addiu	$4,$5,55
+$L21:
+	jal	saus
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L25
+	sra	$2,$16,4
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_byte
+	.align	2
+	.globl	print_word
+	.ent	print_word
+print_word:
+	.frame	$sp,32,$31		# vars= 0, regs= 3/0, args= 16, gp= 0
+	.mask	0x80030000,-8
+	.fmask	0x00000000,0
+	addiu	$sp,$sp,-32
+	sw	$17,20($sp)
+	sw	$16,16($sp)
+	sw	$31,24($sp)
+	move	$16,$4
+	li	$17,3			# 0x3
+$L30:
+	sra	$4,$16,24
+	.set	noreorder
+	.set	nomacro
+	jal	print_byte
+	addiu	$17,$17,-1
+	.set	macro
+	.set	reorder
+
+	.set	noreorder
+	.set	nomacro
+	bgez	$17,$L30
+	sll	$16,$16,8
+	.set	macro
+	.set	reorder
+
+	lw	$31,24($sp)
+	lw	$17,20($sp)
+	lw	$16,16($sp)
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	addiu	$sp,$sp,32
+	.set	macro
+	.set	reorder
+
+	.end	print_word