Merge branch 'mips32-minimal' into 'master'

增加mips32-minimal AM

See merge request !10

Makefile

@@ -11,6 +11,11 @@ endif
 ifeq ($(ARCH), mips32-npc)
 CROSS_COMPILE = mips-linux-gnu-
 endif
+# TODO: refactor
+ifeq ($(ARCH), mips32-minimal)
+CROSS_COMPILE = mips-linux-gnu-
+endif
+
 AS = $(CROSS_COMPILE)gcc
 CC = $(CROSS_COMPILE)gcc
 CXX = $(CROSS_COMPILE)g++
@@ -58,6 +63,13 @@ CFLAGS   += -MD -fno-pic -static -fno-strict-aliasing -fno-builtin -fno-stack-pr
 CXXFLAGS += -fno-pic -static -fno-strict-aliasing -fno-builtin -fno-stack-protector -fno-delayed-branch -mno-abicalls -march=mips32 -ffreestanding -fno-rtti -fno-exceptions -mno-check-zero-division -EL
 ASFLAGS  += -march=mips32 -EL -MD -mno-check-zero-division -O0 -mno-abicalls -fno-pic -fno-delayed-branch
 endif
+ifeq ($(ARCH), mips32-minimal)
+CXX = $(CROSS_COMPILE)g++-5
+CFLAGS   += -MD -fno-pic -static -fno-strict-aliasing -fno-builtin -fno-stack-protector -fno-delayed-branch -mno-abicalls -march=mips32 -mno-check-zero-division -EL
+CXXFLAGS += -fno-pic -static -fno-strict-aliasing -fno-builtin -fno-stack-protector -fno-delayed-branch -mno-abicalls -march=mips32 -ffreestanding -fno-rtti -fno-exceptions -mno-check-zero-division -EL
+ASFLAGS  += -march=mips32 -EL -MD -mno-check-zero-division -O0 -mno-abicalls -fno-pic -fno-delayed-branch
+endif
+
 ifeq ($(ARCH), x86-qemu)
 CFLAGS   += -m32 -fno-builtin -fno-stack-protector -fno-omit-frame-pointer
 CXXFLAGS += -m32 -fno-builtin -fno-stack-protector -fno-omit-frame-pointer -ffreestanding -fno-rtti -fno-exceptions
@@ -109,6 +121,9 @@ play: $(AM_LIB) image
 ifeq ($(ARCH), mips32-npc)
 	@echo "Burn it to FPGA."
 endif
+ifeq ($(ARCH), mips32-minimal)
+	@echo "Burn it to FPGA."
+endif
 ifeq ($(ARCH), native)
 	@$(DEST)
 endif

am/arch/mips32-minimal/README.md

@@ -0,0 +1,3 @@
+# MIPS32-Minimal
+
+Minimal AM for testing a CPU implementation

am/arch/mips32-minimal/img/boot/Makefile

@@ -0,0 +1,2 @@
+start.o: start.S
+	mips-linux-gnu-gcc -EL -march=mips32 -fno-pic -MD -mno-abicalls -fno-delayed-branch -c start.S -o start.o

am/arch/mips32-minimal/img/boot/start.S

@@ -0,0 +1,6 @@
+.globl _start
+.type _start, @function
+  
+_start:
+  la $sp, _stack_pointer
+  j main

am/arch/mips32-minimal/img/build

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+DIR=./am/arch/mips32-minimal/img
+DEST=$1
+shift
+
+bash -c "cd $DIR/boot && make"
+
+mips-linux-gnu-ld -EL -T $DIR/loader.ld -e _start -o $DEST $DIR/boot/start.o --start-group $@ --end-group && python $DIR/check.py $DEST

am/arch/mips32-minimal/img/check.py

@@ -0,0 +1,34 @@
+#!/usr/bin/python
+
+import sys, re, subprocess
+from subprocess import PIPE
+
+def execute(commands):
+  p = subprocess.Popen(commands, stdout=PIPE, stderr=PIPE)
+  (out, err) = p.communicate()
+  return out
+
+
+def parse(fname):
+  # objdump result
+  INST = re.compile('^([0-9a-f]+):\t([0-9a-f]+)\s+([a-z]+).*$')
+  # pseudo instrutions
+  MAP = {
+    'beqz': 'beq',
+    'bnez': 'bne',
+    'negu': 'subu',
+  }
+
+  insts = set()
+  for line in execute(["mips-linux-gnu-objdump", "-M", "no-aliases", "-d", fname]).split('\n'):
+    m = INST.match(line.strip())
+    if m:
+      inst = m.group(3)
+      insts.add( MAP.get(inst, inst) )
+  return sorted(list(insts))
+
+binary = sys.argv[1]
+insts = parse(binary)
+print "There are {0} instructions:".format(len(insts))
+print "  {0}".format(" ".join([i.upper() for i in insts]))
+

am/arch/mips32-minimal/img/loader.ld

@@ -0,0 +1,9 @@
+SECTIONS {
+  . = 0x10000000;
+  . += 8192;
+  _stack_pointer = .;
+  .text : { *(.text) }
+  .data : { *(.data) }
+  .bss : { *(.bss) }
+  _end = .;
+}

am/arch/mips32-minimal/include/arch.h

@@ -0,0 +1,32 @@
+#ifndef __ARCH_H__
+#define __ARCH_H__
+
+typedef unsigned int u32;
+typedef int i32;
+typedef unsigned short u16;
+typedef short int i16;
+typedef unsigned char u8;
+typedef char i8;
+typedef u32 size_t;
+
+typedef struct _RegSet {
+} _RegSet;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static inline void _halt(int code) { while (1); }
+static inline void _putc(char ch) { } 
+
+static inline void _ioe_init() { }
+static inline unsigned long _cycles() { return 0; }
+static inline unsigned long _uptime() { return 0; }
+static inline void _draw_p(int x, int y, u32 p) {}
+static inline void _draw_f(u32 *ps) {}
+static inline void _draw_sync() {}
+
+#ifdef __cplusplus
+}
+#endif
+#endif

am/arch/mips32-minimal/src/trm.c

@@ -0,0 +1,14 @@
+#include <am.h>
+
+extern char _end;
+
+_Area _heap = {
+  .start = &_end,
+  .end   = &_end,
+};
+
+_Screen _screen = {
+  .width  = 0,
+  .height = 0,
+};
+

am/arch/mips32-qemu/README.md

@@ -1 +0,0 @@
-# MIPS32-qemu

apps/cputest/add-longlong.c

@@ -0,0 +1,24 @@
+#include "trap.h"
+
+long long add(long long a, long long b) {
+	long long c = a + b;
+	return c;
+}
+
+long long test_data[] = {0, 1, 2, 0x7fffffffffffffffLL, 0x8000000000000000LL, 0x8000000000000001LL, 0xfffffffffffffffeLL, 0xffffffffffffffffLL};
+long long ans[] = {0LL, 0x1LL, 0x2LL, 0x7fffffffffffffffLL, 0x8000000000000000LL, 0x8000000000000001LL, 0xfffffffffffffffeLL, 0xffffffffffffffffLL, 0x1LL, 0x2LL, 0x3LL, 0x8000000000000000LL, 0x8000000000000001LL, 0x8000000000000002LL, 0xffffffffffffffffLL, 0LL, 0x2LL, 0x3LL, 0x4LL, 0x8000000000000001LL, 0x8000000000000002LL, 0x8000000000000003LL, 0LL, 0x1LL, 0x7fffffffffffffffLL, 0x8000000000000000LL, 0x8000000000000001LL, 0xfffffffffffffffeLL, 0xffffffffffffffffLL, 0LL, 0x7ffffffffffffffdLL, 0x7ffffffffffffffeLL, 0x8000000000000000LL, 0x8000000000000001LL, 0x8000000000000002LL, 0xffffffffffffffffLL, 0LL, 0x1LL, 0x7ffffffffffffffeLL, 0x7fffffffffffffffLL, 0x8000000000000001LL, 0x8000000000000002LL, 0x8000000000000003LL, 0LL, 0x1LL, 0x2LL, 0x7fffffffffffffffLL, 0x8000000000000000LL, 0xfffffffffffffffeLL, 0xffffffffffffffffLL, 0LL, 0x7ffffffffffffffdLL, 0x7ffffffffffffffeLL, 0x7fffffffffffffffLL, 0xfffffffffffffffcLL, 0xfffffffffffffffdLL, 0xffffffffffffffffLL, 0LL, 0x1LL, 0x7ffffffffffffffeLL, 0x7fffffffffffffffLL, 0x8000000000000000LL, 0xfffffffffffffffdLL, 0xfffffffffffffffeLL};
+
+#define NR_DATA (sizeof(test_data) / sizeof(test_data[0]))
+
+int main() {
+	int i, j, ans_idx = 0;
+	for(i = 0; i < NR_DATA; i ++) {
+		for(j = 0; j < NR_DATA; j ++) {
+			nemu_assert(add(test_data[i], test_data[j]) == ans[ans_idx ++]);
+		}
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/add.c

@@ -0,0 +1,27 @@
+#include "trap.h"
+
+int add(int a, int b) {
+	int c = a + b;
+	return c;
+}
+
+int test_data[] = {0, 1, 2, 0x7fffffff, 0x80000000, 0x80000001, 0xfffffffe, 0xffffffff};
+int ans[] = {0, 0x1, 0x2, 0x7fffffff, 0x80000000, 0x80000001, 0xfffffffe, 0xffffffff, 0x1, 0x2, 0x3, 0x80000000, 0x80000001, 0x80000002, 0xffffffff, 0, 0x2, 0x3, 0x4, 0x80000001, 0x80000002, 0x80000003, 0, 0x1, 0x7fffffff, 0x80000000, 0x80000001, 0xfffffffe, 0xffffffff, 0, 0x7ffffffd, 0x7ffffffe, 0x80000000, 0x80000001, 0x80000002, 0xffffffff, 0, 0x1, 0x7ffffffe, 0x7fffffff, 0x80000001, 0x80000002, 0x80000003, 0, 0x1, 0x2, 0x7fffffff, 0x80000000, 0xfffffffe, 0xffffffff, 0, 0x7ffffffd, 0x7ffffffe, 0x7fffffff, 0xfffffffc, 0xfffffffd, 0xffffffff, 0, 0x1, 0x7ffffffe, 0x7fffffff, 0x80000000, 0xfffffffd, 0xfffffffe};
+
+#define NR_DATA (sizeof(test_data) / sizeof(test_data[0]))
+
+int main() {
+	int i, j, ans_idx = 0;
+	for(i = 0; i < NR_DATA; i ++) {
+		for(j = 0; j < NR_DATA; j ++) {
+			nemu_assert(add(test_data[i], test_data[j]) == ans[ans_idx ++]);
+		}
+	}
+
+	nemu_assert(i == NR_DATA);
+	nemu_assert(j == NR_DATA);
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/bit.c

@@ -0,0 +1,47 @@
+#include "trap.h"
+
+typedef unsigned char uint8_t;
+typedef char bool;
+__attribute__((noinline))
+bool getbit(void *buf, int offset){
+	int byte = offset >> 3;
+	offset &= 7;
+	uint8_t mask = 1 << offset;
+	return (((uint8_t *)buf)[byte] & mask) != 0;
+}
+__attribute__((noinline))
+void setbit(void *buf, int offset, bool bit){
+	int byte = offset >> 3;
+	offset &= 7;
+	uint8_t mask = 1 << offset;
+	
+	uint8_t * volatile p = buf + byte;
+	*p = (bit == 0 ? (*p & ~mask) : (*p | mask));
+}
+
+int main() {
+	uint8_t buf[2];
+
+	buf[0] = 0xaa; 
+	nemu_assert(getbit(buf, 0) == 0);
+	nemu_assert(getbit(buf, 1) == 1);
+	nemu_assert(getbit(buf, 2) == 0);
+	nemu_assert(getbit(buf, 3) == 1);
+	nemu_assert(getbit(buf, 4) == 0);
+	nemu_assert(getbit(buf, 5) == 1);
+	nemu_assert(getbit(buf, 6) == 0);
+	nemu_assert(getbit(buf, 7) == 1);
+
+	setbit(buf, 8, 1);
+	setbit(buf, 9, 0);
+	setbit(buf, 10, 1);
+	setbit(buf, 11, 0);
+	setbit(buf, 12, 1);
+	setbit(buf, 13, 0);
+	setbit(buf, 14, 1);
+	setbit(buf, 15, 0);
+	nemu_assert(buf[1] == 0x55);
+
+	HIT_GOOD_TRAP;
+	return 0;
+}

apps/cputest/bubble-sort.c

@@ -0,0 +1,41 @@
+#include "trap.h"
+
+#define N 100
+
+int a[N] = {81, 37, 64, 23, 38, 65, 56, 15, 8, 33, 85, 39, 71, 12, 77, 6, 82, 89, 80, 35, 0, 59, 73, 4, 61, 30, 74, 69, 13, 42, 68, 63, 9, 29, 47, 36, 99, 25, 21, 14, 60, 3, 2, 18, 26, 83, 53, 5, 43, 67, 88, 70, 76, 92, 94, 48, 34, 49, 66, 95, 78, 62, 32, 52, 16, 72, 27, 28, 22, 40, 84, 91, 96, 57, 87, 51, 98, 1, 10, 11, 24, 20, 19, 31, 7, 97, 50, 86, 79, 17, 75, 55, 93, 44, 58, 54, 45, 41, 90, 46};
+
+void bubble_sort() {
+	int i, j, t;
+	for(j = 0; j < N; j ++) {
+		for(i = 0; i < N - 1 - j; i ++) {
+			if(a[i] > a[i + 1]) {
+				t = a[i];
+				a[i] = a[i + 1];
+				a[i + 1] = t;
+			}
+		}
+	}
+}
+
+int main() {
+	bubble_sort();
+
+	int i;
+	for(i = 0; i < N; i ++) {
+		nemu_assert(a[i] == i);
+	}
+
+	nemu_assert(i == N);
+
+	bubble_sort();
+
+	for(i = 0; i < N; i ++) {
+		nemu_assert(a[i] == i);
+	}
+
+	nemu_assert(i == N);
+	
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/fact.c

@@ -0,0 +1,21 @@
+#include "trap.h"
+
+int f[15];
+int ans[] = {1, 1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3628800, 39916800, 479001600};
+
+int fact(int n) {
+	if(n == 0 || n == 1) return 1;
+	else return fact(n - 1) * n;
+}
+
+int main() {
+	int i;
+	for(i = 0; i < 13; i ++) {
+		f[i] = fact(i);
+		nemu_assert(f[i] == ans[i]);
+	}
+
+	HIT_GOOD_TRAP;
+	return 0;
+}
+

apps/cputest/fib.c

@@ -0,0 +1,15 @@
+#include "trap.h"
+
+int fib[40] = {1, 1};
+int ans[] = {1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, 46368, 75025, 121393, 196418, 317811, 514229, 832040, 1346269, 2178309, 3524578, 5702887, 9227465, 14930352, 24157817, 39088169, 63245986, 102334155};
+
+int main() {
+	int i;
+	for(i = 2; i < 40; i ++) {
+		fib[i] = fib[i - 1] + fib[i - 2];
+		nemu_assert(fib[i] == ans[i]);
+	}
+
+	HIT_GOOD_TRAP;
+	return 0;
+}

apps/cputest/gotbaha.c

@@ -0,0 +1,36 @@
+#include "trap.h"
+
+int is_prime(int n) {
+	if(n < 2) return 0;
+
+	int i;
+	for(i = 2; i < n; i ++) {
+		if(n % i == 0) {
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+int gotbaha(int n) {
+	int i;
+	for(i = 2; i < n; i ++) {
+		if(is_prime(i) && is_prime(n - i)) {
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+int main() {
+	int n;
+	for(n = 4; n <= 100; n += 2) {
+		nemu_assert(gotbaha(n) == 1);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/hello-inline-asm.c

@@ -0,0 +1,15 @@
+#include "trap.h"
+
+const char str[] = "Hello, world!\n";
+
+int main() {
+	asm volatile (  "movl $4, %eax;"	// system call ID, 4 = SYS_write
+					"movl $1, %ebx;"	// file descriptor, 1 = stdout
+					"movl $str, %ecx;"	// buffer address
+					"movl $14, %edx;"	// length
+					"int $0x80");
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/hello-str.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <string.h>
+#include "trap.h"
+
+char buf[128];
+
+/* This function is defined only to make the newlibc linkable.
+ * Without it, errors will be reported during linking.
+ * But the execution flow should not reach here.
+ */
+void *sbrk(int incr) {
+	nemu_assert(0);
+	return NULL;
+}
+
+int main() {
+	sprintf(buf, "%s", "Hello world!\n");
+	nemu_assert(strcmp(buf, "Hello world!\n") == 0);
+
+	sprintf(buf, "%d + %d = %d\n", 1, 1, 2);
+	nemu_assert(strcmp(buf, "1 + 1 = 2\n") == 0);
+
+	sprintf(buf, "%d + %d = %d\n", 2, 10, 12);
+	nemu_assert(strcmp(buf, "2 + 10 = 12\n") == 0);
+
+	HIT_GOOD_TRAP;
+	return 0;
+}

apps/cputest/hello.c

@@ -0,0 +1,68 @@
+#include <stdio.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <sys/stat.h>
+
+#include "trap.h"
+
+int __attribute__((__noinline__))
+syscall(int id, ...) {
+	int ret;
+	int *args = &id;
+	asm volatile("int $0x80": "=a"(ret) : "a"(args[0]), "b"(args[1]), "c"(args[2]), "d"(args[3]));
+	return ret;
+}
+
+int read(int fd, char *buf, int len) {
+	nemu_assert(0);
+	return 0;
+}
+
+int write(int fd, char *buf, int len) {
+	return syscall(__NR_write, fd, buf, len); 
+}
+
+off_t lseek(int fd, off_t offset, int whence) {
+	nemu_assert(0);
+	return 0;
+}
+
+void *sbrk(int incr) {
+	extern char end;		/* Defined by the linker */
+	static char *heap_end;
+	char *prev_heap_end;
+
+	if (heap_end == 0) {
+		heap_end = &end;
+	}
+	prev_heap_end = heap_end;
+
+	if( syscall(SYS_brk, heap_end + incr) == 0) {
+		heap_end += incr;
+	}
+
+	return prev_heap_end;
+}
+
+int close(int fd) {
+	nemu_assert(0);
+	return 0;
+}
+
+int fstat(int fd, struct stat *buf) {
+//	buf->st_mode = S_IFCHR;
+	return 0;
+}
+
+int isatty(int fd) {
+	nemu_assert(0);
+	return 0;
+}
+
+int main() {
+	printf("%s", "Hello world!\n");
+	printf("%d + %d = %d\n", 1, 1, 2);
+
+	HIT_GOOD_TRAP;
+	return 0;
+}

apps/cputest/if-else.c

@@ -0,0 +1,28 @@
+#include "trap.h"
+
+int if_else(int n) {
+	int cost;
+	if(n > 500) cost = 150;
+	else if(n > 300) cost = 100;
+	else if(n > 100) cost = 75;
+	else if(n > 50) cost = 50;
+	else cost = 0;
+
+	return cost;
+}
+
+int test_data[] = {-1, 0, 49, 50, 51, 99, 100, 101, 299, 300, 301, 499, 500, 501};
+int ans[] = {0, 0, 0, 0, 50, 50, 50, 75, 75, 75, 100, 100, 100, 150};
+
+#define NR_DATA (sizeof(test_data) / sizeof(test_data[0]))
+
+int main() {
+	int i, ans_idx = 0;
+	for(i = 0; i < NR_DATA; i ++) {
+		nemu_assert(if_else(test_data[i]) == ans[ans_idx ++]);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/integral.c

@@ -0,0 +1,146 @@
+#include "trap.h"
+
+typedef int FLOAT;
+
+static inline int F2int(FLOAT a) {
+	int carry=(a & 0xffff) >= 0x8000;
+	return (a>>16) + carry;
+}
+
+static inline FLOAT int2F(int a) {
+	return a<<16;
+}
+
+static inline FLOAT F_mul_int(FLOAT a, int b) {
+	return a*b;
+}
+
+static inline FLOAT F_div_int(FLOAT a, int b) {
+	return a/b;
+}
+
+FLOAT f2F(float);
+FLOAT F_mul_F(FLOAT, FLOAT);
+FLOAT F_div_F(FLOAT, FLOAT);
+FLOAT Fabs(FLOAT);
+FLOAT sqrt(FLOAT);
+FLOAT pow(FLOAT, FLOAT);
+
+
+FLOAT f(FLOAT x) { 
+	/* f(x) = 1/(1+25x^2) */
+	return F_div_F(int2F(1), int2F(1) + F_mul_int(F_mul_F(x, x), 25));
+}
+
+FLOAT computeT(int n, FLOAT a, FLOAT b, FLOAT (*fun)(FLOAT)) {
+	int k;
+	FLOAT s,h;
+	h = F_div_int((b - a), n);
+	s = F_div_int(fun(a) + fun(b), 2 );
+	for(k = 1; k < n; k ++) {
+		s += fun(a + F_mul_int(h, k));
+	}
+	s = F_mul_F(s, h);
+	return s;
+}
+
+int main() { 
+	FLOAT a = computeT(10, f2F(-1.0), f2F(1.0), f);
+	FLOAT ans = f2F(0.551222);
+
+	nemu_assert(Fabs(a - ans) < f2F(1e-4));
+	HIT_GOOD_TRAP;
+	return 0;
+}
+
+FLOAT F_mul_F(FLOAT a, FLOAT b) {
+	//return ((a>>4)*(b>>4))>>8;
+	//long long r=((long long)a * b)>>16;
+	//return (FLOAT)(r & 0xffffffff);	//if I use this way, shrd instruction is not surported.
+
+	union {
+		long long l;
+		struct {
+			unsigned short twobyte1,twobyte2,twobyte3,twobyte4;
+		};
+	}temp;
+
+	temp.l=(long long)a*b;
+	return (unsigned int)(temp.twobyte2) + (((unsigned int)temp.twobyte3)<<16);
+}
+
+FLOAT F_div_F(FLOAT a, FLOAT b) {
+	return (a<<13)/(b>>3);
+	//This is other pepele's help.
+/*	unsigned sign=(a & 0x80000000) ^ (b & 0x80000000);
+	unsigned ua=a & 0x7fffffff,
+			 ub=b & 0x7fffffff;
+	int result=((ua/ub)<<16);
+	unsigned remain=ua%ub;
+	int i=0;
+	for(;i<16;i++)
+	{
+		remain<<=1;
+		if(sign==0)
+			result+=(remain/ub)<<(15-i);
+		else
+			result-=(remain/ub)<<(15-i);
+		remain%=ub;
+	}
+	return result | sign;
+*/	
+}
+
+FLOAT f2F(float a) {
+	union fi {
+		float f;
+		int i;
+	}temp;
+	temp.f=a;
+
+	int exp=((temp.i & 0x7f800000)>>23) - 127;
+	int m=(temp.i & 0x7fffff) + 0x800000;
+	int sign=0x80000000 & temp.i;
+	//Assert(exp<=14, "float to FLOAT overflow!");
+
+	FLOAT result;
+	if(exp>7)
+		result=m<<(exp-7);	
+	else
+		result=m>>(7-exp);
+
+	if(sign==0)
+		return result;
+	else
+		return -result;
+}
+
+FLOAT Fabs(FLOAT a) {
+	return (a>=0) ? a : (-a);
+}
+
+
+FLOAT sqrt(FLOAT x) {
+	FLOAT dt, t = int2F(2);
+
+	do {
+		dt = F_div_int((F_div_F(x, t) - t), 2);
+		t += dt;
+	} while(Fabs(dt) > f2F(1e-4));
+
+	return t;
+}
+
+FLOAT pow(FLOAT x, FLOAT y) {
+	/* we only compute x^0.333 */
+	FLOAT t2, dt, t = int2F(2);
+
+	do {
+		t2 = F_mul_F(t, t);
+		dt = (F_div_F(x, t2) - t) / 3;
+		t += dt;
+	} while(Fabs(dt) > f2F(1e-4));
+
+	return t;
+}
+

apps/cputest/leap-year.c

@@ -0,0 +1,18 @@
+#include "trap.h"
+
+int is_leap_year(int n) {
+	return (n % 4 == 0 && n % 100 != 0) || (n % 400 == 0);
+}
+
+int ans[] = {0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0};
+
+int main() {
+	int i;
+	for(i = 0; i < 125; i ++) {
+		nemu_assert(is_leap_year(i + 1890) == ans[i]);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/load-store.c

@@ -0,0 +1,52 @@
+
+#include "trap.h"
+//#include <stdio.h>
+//#include <assert.h>
+
+#define ARR_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+unsigned short mem[] = {
+	0x0, 0x0258, 0x4abc, 0x7fff, 0x8000, 0x8100, 0xabcd, 0xffff
+};
+
+unsigned lh_ans[] = {
+	0x00000000, 0x00000258, 0x00004abc, 0x00007fff, 0xffff8000, 0xffff8100, 0xffffabcd, 0xffffffff
+};
+
+unsigned lhu_ans[] = {
+	0x00000000, 0x00000258, 0x00004abc, 0x00007fff, 0x00008000, 0x00008100, 0x0000abcd, 0x0000ffff
+};
+
+unsigned  sh_ans[] = {
+	0x0000fffd, 0x0000fff7, 0x0000ffdf, 0x0000ff7f, 0x0000fdff, 0x0000f7ff, 0x0000dfff, 0x00007fff
+};
+
+unsigned  lwlr_ans[] = {
+	0xbc025800, 0x7fff4a, 0xcd810080, 0xffffab
+};
+
+int main() {
+	unsigned i;
+
+	for(i = 0; i < ARR_SIZE(mem); i ++) {
+		nemu_assert((short)mem[i] == lh_ans[i]);
+	}
+
+	for(i = 0; i < ARR_SIZE(mem); i ++) {
+		nemu_assert(mem[i] == lhu_ans[i]);
+	}
+
+	for(i = 0; i < (ARR_SIZE(mem) / 2); i ++) {
+		unsigned x = ((unsigned*)((void*)mem + 1))[i];
+		nemu_assert(x == lwlr_ans[i]);
+	}
+
+	for(i = 0; i < ARR_SIZE(mem); i ++) {
+		mem[i] = ~(1 << (2 * i + 1));
+		nemu_assert(mem[i] == sh_ans[i]);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/lwl.c

@@ -0,0 +1,25 @@
+
+#include "trap.h"
+
+int x = 0xffffffff;
+
+int main() {
+
+	asm volatile("lui $t0, 0x0102\n\t" \
+			"ori $t0, $t0, 0x0304\n\t" \
+			"sw $t0, 0x1000($zero)\n\t" \
+			"lui $t0, 0x0506\n\t" \
+			"ori $t0, $t0, 0x0708\n\t" \
+			"sw $t0, 0x1004($zero)\n\t" \
+			"lwl $t1, 0x1001($zero)\n\t" \
+			"lwr $t1, 0x1006($zero)\n\t" \
+			"sw $t1, %0\n\t" \
+			:"=m"(x) \
+	);
+
+	nemu_assert(x == 0x03040506);
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/matrix-mul-small.c

@@ -0,0 +1,58 @@
+#include "trap.h"
+
+#define N 10
+int a[N][N] = {
+{31, -73, -67, -28, 87, -17, -15, -35, -53, -54},
+{52, 36, 9, -91, -27, -78, 42, 82, 19, -6},
+{41, -56, 31, 32, -52, 74, 28, 20, 55, -72},
+{-59, 2, -79, -8, 44, 55, -83, -95, -45, 50},
+{-95, 61, -63, 62, -16, 52, 40, 92, -32, -26},
+{-99, 52, 96, 63, -75, -74, -82, 82, -95, 42},
+{11, -22, 27, -27, -27, -76, -71, 58, -40, -65},
+{91, -53, -67, 72, 36, -77, -3, 93, -24, 97},
+{-52, -11, -77, -93, -92, -24, 70, 18, 56, 88},
+{-43, -41, -26, 11, -84, -14, -41, 83, 27, -11}
+};
+int b[N][N] = {
+	{-48, -70, -40, -82, -74, -63, -59, -72, -100, -72},
+{5, -84, 28, 56, 60, -33, -42, -50, -83, -83},
+{-5, 5, 48, 75, -78, -9, 9, 2, 88, 70},
+{69, 23, 66, 66, -11, 50, 67, 18, -58, 76},
+{30, 45, 32, 25, -73, 57, -67, -14, 53, -33},
+{98, -86, -63, 80, -45, -88, 80, -64, 58, -84},
+{-55, -39, -13, -27, -37, 8, -96, 84, -89, 31},
+{-82, 58, 81, -41, -58, 36, 76, -79, -29, 23},
+{86, -46, 16, -18, 81, 90, 35, -90, 43, 55},
+{-38, -19, -40, 82, -76, 57, -29, -2, 79, -48},
+};
+
+int ans[N][N] = {
+	{-1317, 10379, -5821, -14322, -4330, -3114, -9940, 7033, -1883, -6027},
+	{-24266, -861, 4044, -19824, -223, 886, -11988, -6442, -13846, -1054},
+	{9783, -7073, -918, -5911, -967, -7100, 14605, -7556, -3439, 9607},
+	{15980, -520, -13297, 15043, 6185, -3654, 1325, 4193, 16925, -17761},
+	{2566, 3187, 10248, 7925, 6318, 1421, 14648, 700, -12193, 1083},
+	{-12603, 19006, 20952, 18599, -1539, 5184, 17408, 6740, 6264, 15114},
+	{-12715, 15121, 9963, -13717, 2411, -2196, 6147, -1698, -3389, 8200},
+	{-19007, 12417, 5723, -11309, -19242, 15740, -3791, -3949, -13130, -21},
+	{-12557, -5970, -11570, -8905, 12227, 7814, -5094, 4532, 1071, -1309},
+	{-2955, 9381, 6372, -6898, 9117, 5753, 20778, -5045, 1047, 12114}}; 
+
+int c[N][N];
+
+int main() {
+	int i, j, k;
+	for(i = 0; i < N; i ++) {
+		for(j = 0; j < N; j ++) {
+			c[i][j] = 0;
+			for(k = 0; k < N; k ++) {
+				c[i][j] += a[i][k] * b[k][j];
+			}
+			nemu_assert(c[i][j] == ans[i][j]);
+		}
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/matrix-mul.c

@@ -0,0 +1,326 @@
+#include "trap.h"
+
+#define N 100
+int a[N][N] = {{31, -73, -67, -28, 87, -17, -15, -35, -53, -54, 72, -33, -99, 12, -33, 32, 17, 80, 71, 21, -21, 47, 98, 44, -87, 78, -93, -56, 62, 3, -79, -72, 46, 93, -86, 80, -29, 61, -8, -82, -5, 94, 93, 66, -2, 38, 5, 62, -21, -74, -78, -10, -14, -34, 8, -64, 85, -91, 73, -62, 98, 43, -5, -41, 65, 72, -56, 84, -34, -39, -62, 30, -19, 6, -81, -70, -27, -27, 83, -6, 22, -13, -19, -100, -27, -27, 12, -61, -5, 51, -58, -16, 8, -65, 45, -60, 0, -11, 99, -20},
+{52, 36, 9, -91, -27, -78, 42, 82, 19, -6, -1, -64, -87, 32, 68, 89, -31, -12, -95, -14, -91, -2, -29, 6, -50, 60, -14, -48, -26, -84, 0, 14, -17, -48, -49, -29, 4, 17, 55, -30, 28, -41, 79, -82, -100, -52, 92, 26, 17, -32, -78, -15, -87, -95, 30, 26, -42, 76, -52, -57, 82, -95, -95, 54, -38, 47, -35, 14, 87, 99, 0, -21, -38, 48, -98, -37, -66, 11, -100, -34, 91, -49, 97, -13, 89, -95, -88, 52, -56, 38, -57, 83, 74, -32, -85, 40, -49, -86, -39, 37},
+{41, -56, 31, 32, -52, 74, 28, 20, 55, -72, -25, 28, 12, 27, 48, 27, 60, 47, 19, -81, -46, 62, 2, -16, -77, 31, 84, -76, 5, 73, 69, -53, -28, 24, -74, -85, -12, -86, -88, 3, -34, -15, 97, -49, -86, 9, 25, -84, 3, -54, -16, 13, 91, -33, -19, 91, 57, 49, 39, -91, 77, -60, 79, -96, 48, 15, -36, 9, -41, 63, -50, -61, 36, -34, -7, 32, -2, -24, 80, -37, -17, 13, 58, -41, 2, -39, -19, 12, 92, -56, -95, -41, 0, -16, 21, 61, -23, -92, -52, 56},
+{-59, 2, -79, -8, 44, 55, -83, -95, -45, 50, 41, 32, 37, 58, 59, -61, -64, -24, -40, 76, -91, 7, -50, 45, -42, -67, 11, 71, -42, -10, 48, 71, 75, -1, 67, 93, 58, 56, -32, -34, 0, 27, 70, 64, 31, 50, 35, 69, 20, 47, -5, 69, 44, 18, 30, -9, -63, 94, -80, 87, -88, 84, 63, -90, 25, -24, -99, 77, -26, -38, -67, 86, 24, 81, 38, -52, -90, -98, 37, -90, 22, -66, 87, -79, -88, 69, 40, -81, 36, 13, -28, -19, 46, -91, -53, -50, 61, -55, 52, 61},
+{-95, 61, -63, 62, -16, 52, 40, 92, -32, -26, -24, 89, 12, 85, -96, 81, 80, 6, -73, -5, -5, -79, -68, -74, 18, 19, 76, 83, -54, 6, -82, -89, 82, -29, 38, 22, 65, 74, -40, -99, 1, 24, 33, -30, 79, 82, -36, -1, -36, -92, -11, 40, 77, -48, 15, 67, -22, 49, 2, -4, 96, -70, 76, 63, -96, 95, -46, 47, -98, -79, 57, 89, 36, 51, 58, -28, -70, -29, 36, 99, 58, 85, -67, 47, -64, -44, -39, -16, 84, 39, 87, -99, -82, -76, -89, -54, 21, 33, -33, 42},
+{-99, 52, 96, 63, -75, -74, -82, 82, -95, 42, 33, 86, 23, 60, 52, 50, -95, 20, -8, 33, -9, -19, 39, -2, 73, 13, 81, 12, 22, 99, -21, 33, -95, -15, -59, 66, -18, 46, -85, -30, 88, -5, 38, 78, -68, -61, -21, 96, 78, 33, 56, -92, -97, 64, 2, 58, 21, -88, -87, -77, 19, -39, 87, 87, 96, -59, 24, 43, 55, -3, -7, -49, -39, -75, -95, 76, -37, -24, -53, 20, -12, 48, 62, -8, 98, -22, 98, -43, 45, -62, -66, -72, -97, 1, -29, -54, 35, 25, -15, 67},
+{11, -22, 27, -27, -27, -76, -71, 58, -40, -65, 84, -9, -72, 21, 38, -47, -15, -37, 23, -14, 51, -43, -34, 16, 78, -91, -10, 86, -79, 36, 95, -91, -74, -55, 60, -2, 45, 47, -26, 93, 19, 19, -44, -68, 64, 89, 10, 43, -78, 90, -76, 49, 0, -63, 11, 31, -66, 44, -41, -29, -3, -14, -90, -100, 22, -30, 82, -79, -33, 61, -59, 14, -54, -79, 39, -68, 5, 47, -49, -96, -11, 77, -54, -42, 60, 97, -85, 81, -75, -30, -100, 52, 72, 25, -53, -46, 57, 61, 81, -31},
+{91, -53, -67, 72, 36, -77, -3, 93, -24, 97, -99, -88, -66, 13, 45, -39, 53, -54, -11, -54, -39, 13, 49, 79, 30, 1, -16, -59, -61, -14, -11, -28, -92, 34, 37, 23, 53, -40, -53, -20, 20, -40, 99, -24, -92, -78, -86, 96, 16, -29, -38, 55, 35, -77, -93, 12, 89, -64, 78, 78, 79, 39, 98, 19, -82, 20, 37, -99, -57, -94, -69, -19, -57, 12, 34, 11, 94, -90, 38, -41, 20, 90, 58, 29, 19, 55, -94, -25, 7, 74, 82, 7, -61, -27, 99, 35, -85, -20, -32, -21},
+{-52, -11, -77, -93, -92, -24, 70, 18, 56, 88, -73, 78, 52, 20, -81, 11, 37, -26, -79, 47, 67, 71, 10, 48, 85, 74, 15, -93, 63, 43, 82, 55, 58, 84, -85, 60, 7, 21, 25, 89, -39, 22, -80, 47, 60, -77, -52, -86, 11, -10, -18, -38, -14, -36, 56, 21, 68, -3, 25, -23, -62, 32, -70, 96, -4, -80, -11, -27, 69, 38, 42, -54, -94, -97, -9, 21, -16, 19, 51, 60, 54, 30, 67, 22, -56, -86, -29, -99, 8, 61, 89, 85, -13, -56, 72, 90, -12, 22, -24, -4},
+{-43, -41, -26, 11, -84, -14, -41, 83, 27, -11, 35, 31, 51, 83, -98, -48, 41, -7, 23, 50, -72, -51, -41, 38, 63, 90, -42, -75, -21, 41, -61, -7, -92, 0, 42, 74, -62, 62, 11, 87, -21, -24, -97, -49, 10, 64, -11, -66, 96, 32, 36, -87, 86, 75, -72, 24, 97, 49, 2, -17, -52, -33, -44, 38, 88, -5, -19, -97, -64, 16, 97, -23, -59, 95, -17, -40, -71, -31, -15, -58, 82, 1, 49, -66, -65, 55, 43, 79, 62, -69, -96, 77, -25, -30, 9, -67, 53, -42, 91, -59},
+{95, 63, 32, -74, -32, -56, -47, -43, 23, -11, 44, -72, 62, 52, 31, -16, -55, 68, 41, 76, -97, -19, 45, 86, 69, -96, 2, 15, -29, 70, 65, -68, -47, 40, -2, -97, -60, -38, -22, 9, -72, 13, -2, 47, -53, 23, 23, 27, -41, 70, -61, 62, 13, 68, 77, -62, 42, -12, 31, 61, 4, -53, 43, -97, 45, -37, -50, -85, 55, 54, 64, -10, -52, -49, 65, -38, -51, -52, -64, 47, 28, 18, 41, -7, -31, -72, 43, -7, -52, -25, 9, -66, 99, -44, -15, 70, 18, 43, 74, 7},
+{-65, -70, 58, 22, 71, 72, -13, -4, -59, -26, -41, -8, -15, 41, -28, -45, -11, 91, 12, -46, -85, -31, 38, 40, -31, -42, 63, 62, 39, -88, 5, -77, -43, 93, -68, 57, 79, 1, -5, -100, 60, 97, 14, -24, -85, 68, 8, 70, 10, -62, 16, -7, 26, 16, 88, -10, 27, -76, 51, -54, 41, 43, 11, 18, -71, -80, -43, 92, -40, -39, 77, 0, 43, -2, 78, 65, -37, -27, 25, -48, 0, -48, 37, 97, -43, 97, 62, -9, 75, 4, 89, 76, -19, 31, -59, 14, -93, 55, 63, -6},
+{14, -93, -6, -13, 91, 26, 65, 86, 4, 57, -95, 42, 42, -39, 53, -22, 4, -3, -12, 71, 27, -87, 3, -57, -32, -44, 76, 90, -52, 75, 59, -78, -56, 65, -45, 64, 37, 79, 28, 4, -22, 74, 12, -24, 68, -34, -90, -5, 59, 38, 49, 1, -68, -69, 58, 10, -51, 95, -99, -75, -25, -100, 32, -57, 8, -90, 89, -5, -53, 34, -85, 94, -19, 77, -88, 55, -54, -23, -97, 75, -93, 68, -51, 69, 42, -46, 0, 25, 89, 67, -91, 93, -70, 38, -52, 44, -1, 55, 27, 48},
+{32, -17, -98, 18, -85, -3, 60, -68, -83, -77, -64, -28, -69, 87, -44, -15, -10, 73, 29, 88, 30, -27, -21, -67, 80, 14, 76, 3, 66, -30, 77, 63, -24, 12, 32, -46, -11, -43, 85, 69, 46, 33, -77, -18, -22, 64, 8, 23, -85, 41, -61, 14, -24, -99, -39, 31, -94, -18, 1, 71, -31, 87, -38, 13, -50, 29, 54, 70, -85, 96, -54, -63, 43, 86, 88, 28, -56, 86, 78, -13, -43, 19, -87, 46, 17, -43, -79, 67, -30, 13, -38, 15, 57, 64, 52, 16, -79, 73, -71, -86},
+{66, -39, -30, -43, 34, 50, 64, -45, 18, -92, 75, -20, 12, 34, -23, 91, 25, 84, -67, -60, 63, -81, -92, -100, 98, 97, -14, -74, 86, 96, -87, -40, 92, 90, -63, -52, -80, -20, -6, 7, -59, 69, -15, -70, -40, -13, 65, -32, 43, 34, -12, 33, -98, -59, 97, 40, 56, -30, -43, -84, -22, -6, -97, 53, -80, -21, 74, -27, 29, -76, 66, 18, -26, -33, 93, 4, 87, -81, 13, -10, 17, -2, 34, 72, -63, 42, 61, -71, 53, -78, 79, 21, -24, -38, -82, -73, 21, -18, -4, -29},
+{-97, -60, -74, -45, 17, -71, 55, 67, 95, 25, 33, -48, -23, -86, 41, 62, -97, -88, 75, 12, -4, -8, 95, -65, 93, 8, -36, -62, -52, -82, -58, -62, -14, -74, 18, 5, 83, -82, 61, 21, 17, 38, 43, -74, 32, -16, 28, 71, 25, -25, -61, -91, -19, 53, 84, 2, -44, 86, 68, -6, 60, 79, -47, -46, -48, 25, -87, -82, -34, -58, 97, -44, -12, 57, 59, -88, -69, 60, -6, 67, -52, 89, 79, -39, 30, -99, 3, -62, -48, 51, -53, -16, 7, -33, 63, -1, -70, -74, -100, 60},
+{-6, 14, 70, -8, 48, 87, 10, -74, 71, 70, 83, -1, -86, 27, -32, -4, -100, -37, 15, 46, 50, -89, 8, 82, -66, 18, 26, 82, -54, 6, 49, -72, 17, 21, 98, -52, 52, 13, -100, -57, 99, 55, -17, -83, -100, 48, -22, -1, 72, 80, 91, -77, 92, 7, 83, 31, -83, -40, 77, 34, 5, -22, 64, -17, 2, -41, 96, 89, 71, -14, 52, -10, 4, -79, -16, -90, 43, -23, -81, 95, 28, 19, -10, -83, 58, 20, 21, -69, -35, -41, -36, -9, 10, 14, -19, 55, 17, -14, 35, 72},
+{59, 55, -45, -91, 43, 74, -58, 67, 38, -66, -5, 81, -85, -25, -25, 96, -7, -82, -58, 73, -52, -3, 64, 94, -51, -25, -27, -39, -72, 92, 37, -59, -8, -18, -62, -28, 6, -20, 85, 26, 59, 32, 61, 22, -66, 96, -46, 5, -100, -18, 47, -23, -24, -23, 37, -52, 8, 29, -22, 63, -31, -64, -47, -29, -19, -56, -89, -65, 84, 1, -81, 69, -66, 48, -94, 76, 27, 52, 6, 85, -20, 20, 4, 31, -81, 61, -15, 17, 33, -69, -67, 68, 72, -56, -53, 70, 64, 70, 98, 8},
+{-63, 60, 3, -58, -53, 29, 86, 45, 69, 41, 24, -53, 53, 8, -77, -27, 89, 35, -86, -67, 8, -53, -89, 8, -14, 0, 12, -50, 17, 69, -22, 4, 79, -84, -26, 60, 64, 80, 3, -40, -10, 4, -88, 72, 69, 73, -12, -81, -79, 66, -63, -71, -15, 28, -98, -18, -47, 98, 98, -2, -83, 19, 0, -71, 26, 69, 21, 16, -36, -1, 37, -38, -28, 59, 36, 42, -20, 62, 52, -45, 39, 46, -21, 71, -88, -90, 56, -56, -14, -97, -39, -21, -94, -26, 85, 42, -42, 38, 3, -19},
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+{79, -37, -45, 30, -87, -32, -88, 5, -56, -42, -53, 0, 55, 99, 11, -6, -68, -43, -18, 47, -65, 66, 46, 51, 76, 85, 85, -93, -38, 56, 2, -84, 12, 25, 17, -10, 92, 52, -20, -20, -35, 84, 3, 42, 50, -9, 49, -10, -63, -93, -60, 7, -42, 70, 15, -1, -80, 82, -26, -59, -77, -71, -4, 37, -13, -60, 94, 59, 59, 43, -16, 58, 25, 80, -35, 29, -90, 64, 82, 92, 97, 97, 32, -55, 90, -30, 83, -17, 21, -88, 41, -74, -96, -90, 95, -44, 39, 85, 15, -33},
+{22, -64, 19, 18, -62, 79, 76, -64, 0, 18, 53, -12, -15, -33, 59, -91, -75, -9, -80, 36, 96, 91, -75, -44, -75, 72, -47, 74, 90, -10, 77, 36, -51, -2, 41, -19, -46, -39, -49, 56, -57, 11, -7, 87, -21, 38, -18, 62, -47, 53, 99, -65, -90, -64, 17, -58, -76, 62, 90, 6, 79, -70, -30, 45, 57, -78, 89, 13, -42, -87, -7, -60, 12, 40, 4, -24, 94, -3, -96, 39, 96, -30, 23, 37, -15, -40, -39, -52, -45, -73, 86, -57, 63, 96, -62, -20, -99, 72, -62, 61},
+{63, 1, -25, 97, -10, -58, -20, -91, 29, 14, -6, 53, -51, -24, 86, -90, 63, 73, 66, 21, -1, -15, -100, -21, -47, -52, -8, 46, 27, 81, 64, -85, -92, 18, -37, -70, 54, -7, 63, 87, -30, 15, 88, -44, -64, 33, 82, -21, -60, 16, 88, -35, 66, -100, -65, -51, 74, -80, 78, 34, -34, 18, 19, 90, 47, -37, 9, -70, 44, 9, 70, 89, -25, -89, -63, 71, 17, 4, 90, 97, 5, -27, -7, -58, -15, 21, -39, 52, 19, -7, -87, -88, -43, 20, 64, 37, -19, 88, -83, 64},
+{33, 10, 47, -65, -18, 27, 45, 30, -44, 54, 67, 94, 58, 76, 64, -69, 30, -57, -40, -52, 59, 41, -34, 62, -26, -53, -35, 95, 75, 51, -85, 88, -72, -21, -86, -14, -94, 33, -97, 47, 17, -28, 88, -95, 90, -45, -9, -93, 80, -37, 17, -28, 29, 95, -47, -90, -10, 4, -47, 94, -81, 5, 98, 34, 50, -72, 47, 90, -42, 60, -20, 86, 57, -99, -100, 58, 1, -66, 75, 33, 17, -4, -86, -8, 76, -12, 28, 31, 64, -52, -69, -60, -30, 36, 94, -25, 84, 28, 62, -29},
+{78, 47, 85, 43, 62, 70, 51, 82, -15, 71, 41, 44, 23, -25, -55, -76, -91, -67, 53, -52, 21, 64, 81, -55, -82, -49, 68, 88, -33, 28, 62, 92, -73, 18, -97, 99, -12, 48, 11, -59, 14, 92, -13, 25, 95, 23, 58, -19, -6, -30, -31, 73, -66, 31, -82, 78, -36, -85, 2, -90, 47, -93, -99, -57, -61, 44, 36, 69, -6, -81, -75, 98, -29, 93, 6, 74, -59, 11, 73, -58, 72, -76, 60, 82, -53, 19, 2, 14, -17, -50, -85, 95, 10, -97, 64, -100, -13, 49, 71, -46},
+{-63, -58, -9, -83, -35, 15, 97, -59, 20, 43, 45, -22, 21, -68, 11, -38, -89, 93, -39, -72, -22, 11, 58, -13, -48, -80, -22, 81, -23, -57, -97, -58, 62, -79, 97, -46, -50, -45, -79, 91, 25, -78, 9, -97, -27, -20, 4, 95, -39, -59, 23, -14, 64, 33, -16, 62, 36, 65, -8, -11, 18, 45, 95, 92, -86, 14, -19, -38, 43, 35, -28, 41, -66, 11, -74, 95, 21, 19, 86, 72, -3, -11, -61, 29, -50, -34, 62, -64, -35, -73, -49, -65, 16, -60, -82, -46, -50, 98, 98, 76},
+{44, -25, -99, -93, 62, 57, 62, 85, -49, -16, 89, 37, 85, -66, 67, 35, -95, 69, -26, -27, 16, -50, 75, 8, 65, -100, -66, -1, 77, 6, -5, -45, -96, 7, 5, -32, 62, -97, -42, -31, -93, -17, 11, -88, -33, -68, -36, -85, -85, -1, -94, -54, -62, -90, 13, -76, -47, 14, -59, -48, 49, 75, -25, -66, -36, 15, -47, 90, 16, 39, 84, -46, 75, 5, -100, -71, 45, 15, 46, -85, 86, 84, 96, -18, -20, 98, -10, -94, 25, 86, 73, -73, 24, -57, 95, 37, 40, 73, -51, 5},
+{81, -3, 8, -59, 19, 11, 47, 62, 36, 99, -85, -36, -90, 97, -55, 40, -94, -50, -55, -49, -78, 60, 56, 46, -20, 75, -67, -96, 81, 3, -45, 57, 86, -69, -98, 0, 49, 46, 35, 50, 89, -84, 18, -81, 25, -22, -30, 46, 46, 44, -88, 24, -44, -80, -33, -36, -4, 84, -96, -34, -23, -39, -65, 8, 85, -19, -52, 11, 80, 53, -46, -91, -51, -31, 96, 82, 35, 25, -97, 51, 90, -11, 41, -52, -16, -26, 70, -59, -72, -76, 97, -99, 53, 2, 13, -52, 89, -54, 39, 56},
+{99, 14, -83, -8, -35, -79, -26, 46, 50, 36, -47, -30, 23, -24, 15, 89, 67, 88, -42, 82, 49, -11, 79, -96, -17, -4, -23, -18, 87, 18, -4, 70, 63, 52, 43, -51, -9, -31, 26, 51, 17, -50, -31, -1, 48, 12, -22, -89, -4, 67, -97, -15, 8, -32, 31, 96, 22, 47, -16, -100, -83, -72, -50, -12, -41, 39, -75, -40, 30, -29, -1, -87, -81, 65, 60, -61, -70, 76, 62, 79, -76, -64, -6, -14, -75, -63, 78, -50, -88, -96, 33, -47, -86, 47, 97, 98, 49, -77, -16, -32},
+{-80, 38, 9, 47, 8, 97, -2, 56, 35, -60, 35, -42, 78, -20, 44, 23, 59, 14, 55, -7, 16, -43, -56, -22, -79, -85, 9, 45, 8, 1, 26, 20, 91, 53, 99, 61, -12, -19, 84, 67, -71, -34, -91, 30, 88, -27, 61, -100, 31, -50, 4, 49, -70, -71, -7, 23, 32, 17, 4, 62, 84, -92, -16, -51, -34, -51, 10, 16, 32, -42, -54, -49, -25, -77, 21, -75, -24, -98, -3, 27, 2, -13, 26, -43, -48, 87, -99, -71, 12, 61, 42, -10, -25, 31, -53, -12, 87, 13, 30, -72},
+{-14, -66, -93, 16, -80, -44, 67, 34, 90, 67, -24, 38, 83, -66, -78, -100, -22, -1, 54, 8, 49, -11, -38, 11, 45, 93, -14, 89, 35, -14, -62, 21, -75, 6, -8, 6, -17, 11, -25, 2, -47, 93, -17, 12, 10, -21, 89, -83, 24, 46, -59, -89, 52, 74, -4, 99, -25, 92, -21, 28, -93, 38, 11, 15, -70, 57, -82, 48, -58, 1, 50, -60, 97, -12, -59, -82, 28, 96, -84, 80, 26, -29, -91, -81, -54, 89, 25, 26, 66, 2, 36, -93, 34, -92, -33, 49, 81, -58, -4, -59},
+{-15, -10, 64, -16, 84, -11, -88, -12, -48, -52, 41, -35, -26, 13, -28, 12, 38, 20, 24, 85, -53, 32, 23, 9, -79, -54, -40, -62, 22, -43, -90, -44, -24, 55, -16, -40, 66, -5, 17, -84, 63, -47, 26, 9, 47, 47, -60, -42, 31, 17, -43, -48, -26, -83, 4, 29, -52, 94, 30, 76, 74, 87, -69, 31, 62, -18, 29, 94, 86, 94, 97, -38, 63, -80, 12, 23, -76, 1, 7, 69, 84, -60, -58, -31, 98, -29, -56, -60, 41, -48, 61, -7, -15, 92, 31, 65, 18, 33, 92, 41},
+{71, 37, -3, 74, 42, -56, 54, -59, -64, -12, 48, -66, -89, -74, -25, -51, 31, 65, 15, 71, -31, 14, 5, 67, 41, -40, -40, 7, 66, 30, -95, 43, 17, -31, 51, 95, -92, 48, -84, 58, 22, 99, -84, 58, -3, 28, -80, 43, -16, 23, 57, 61, 31, 82, 29, -43, -38, 38, -32, -86, -10, -81, 18, -100, -20, 91, 45, 55, 65, 76, -70, -50, 94, 23, 89, 31, 36, -6, -82, -91, 22, 35, -92, -4, 80, 72, -43, -94, 15, -82, 71, -12, -47, -34, -72, 69, 32, 70, -1, -34},
+{-58, 93, 65, -45, -19, -11, -76, -36, -37, 48, 10, 94, 25, 34, 82, -45, 92, -73, -100, 42, 9, -62, 12, 62, 37, -34, 31, 93, 76, 85, -19, -62, -59, 34, 1, -26, -41, -53, 20, 46, -77, -91, 77, 14, -18, 68, -8, 88, -27, 26, 51, -60, -83, 82, -52, -1, -54, 77, -38, -19, -5, -40, -43, -28, 24, 60, 2, -62, -61, -43, -46, 10, 68, -73, -18, -20, 59, 16, 41, -50, -10, -55, 62, -35, -92, -60, 83, -34, 41, 34, 55, 53, 7, -18, 14, -82, -6, 49, -50, -43},
+{-11, -75, 99, 75, -10, 15, -24, 11, -58, -68, -23, 12, -83, -73, -72, -22, 33, -7, -48, -76, 31, 39, 60, 91, -57, 10, 29, -57, -64, -87, -42, -14, -48, -73, 53, -54, 42, -57, 87, -44, 13, -46, 89, 40, -29, 94, 50, 76, 65, -42, -94, 6, 93, -97, -12, 62, -74, 48, -35, 44, 94, 21, 24, -98, -48, 11, -32, 10, -30, -59, 25, -36, 71, -30, -48, -24, -91, -53, -54, 26, -38, -88, 58, 44, 88, 39, -7, 68, 67, -47, 9, 71, -69, -96, -80, -68, -28, 66, 20, -89},
+{-100, 26, 6, 59, -63, 98, 98, -36, -9, -88, 3, -1, -59, 57, -21, 74, -28, 74, -2, 56, -51, -19, -73, 82, 18, 83, 42, 0, -1, -51, 79, -90, -25, 33, -79, -39, 48, -77, 93, -5, 3, 89, 12, 81, -1, -7, -94, -67, 92, 60, 61, 89, -32, -15, 21, -23, 62, 73, 7, 89, -10, -63, -9, -18, 90, 53, 68, 64, -42, -50, 34, 7, 45, 23, 40, -89, 0, -70, 20, 78, -41, 65, -74, -36, 31, 68, 93, -33, -39, -6, -93, 35, 55, -50, -70, -11, 13, -31, 35, 76},
+{99, 89, 25, -66, 98, -9, 39, 13, 43, 21, 45, -84, 68, 97, 23, -26, -77, -33, -29, -14, -14, -72, 55, -29, -91, 76, 6, -88, 82, -18, -60, -73, 24, 63, -48, 69, 30, 16, -57, -13, 32, 59, -92, -35, -63, -5, -93, 40, -27, -21, 4, 68, 50, -29, -77, 49, 75, 46, 36, 26, -38, -97, -100, 53, 51, 3, 36, 94, 55, -69, 76, -14, 93, -13, 47, -45, 86, -69, 53, -87, -28, -36, 88, -53, 23, -74, 63, 55, -3, -62, -93, 58, 3, -15, -23, -35, 66, -38, 87, 54},
+{-9, 15, 97, 16, -83, -56, 52, -26, 44, -84, 61, -25, -89, 38, 98, -38, -75, -52, 3, -79, -77, -99, -80, 82, 39, -11, -67, 32, -95, 95, 63, 97, -10, 15, 62, -82, 6, 12, -53, 94, 97, -62, 4, 79, -58, -35, 36, -2, -89, 72, -47, -38, -90, 89, 73, 95, 23, 5, -95, 36, -90, -96, 67, 25, -33, -44, -12, 84, -7, 8, -87, 41, -10, 15, -66, 42, 9, -5, -99, 60, -79, -7, 35, 13, 8, 99, -23, -90, -10, -86, -19, -27, -93, 72, -8, 80, 48, 75, -92, -35},
+{-38, 89, 9, -89, -71, -72, 34, -95, 73, 1, 9, -18, -41, -6, -2, 83, 27, -96, -24, 40, 44, 68, 73, 23, 3, 15, -42, 74, -93, 37, 31, 70, 97, -53, -55, 31, 7, -80, 77, 30, 20, 96, 47, -100, 91, 64, 61, -14, 65, -67, -27, -99, 68, 17, 17, 29, -55, 20, -52, -50, -91, -33, -46, -18, 90, 82, 83, 48, 9, -100, -36, 68, -93, -95, 13, 99, 75, 98, 23, -100, 47, 29, -30, 86, -54, 10, -32, 72, -29, -18, 86, -40, -48, 42, -10, 94, -71, -29, 5, -69},
+{96, -86, 72, -9, 17, 80, 59, 68, -98, -56, 56, -19, 13, 90, 14, 70, 15, -22, 23, -18, -53, 99, -93, -26, -71, -46, 8, -24, 93, -60, -61, 22, -1, 45, -26, 19, 47, 83, -62, 16, 28, 57, -89, -89, -97, 67, 66, -47, 94, 91, 31, -7, 81, 84, -14, 42, 76, 56, -63, -53, 22, 88, -44, 5, 92, -78, 11, 5, -5, 67, 43, 1, 62, -90, 28, 44, -77, -9, -22, -67, 97, -2, -26, 5, -55, 4, 83, -89, 66, -52, 82, -4, -71, -63, -12, 30, -22, 46, -13, 23},
+{-71, -75, 36, -39, 14, 48, -46, 3, 36, 91, 63, 9, -95, 47, 64, 78, -99, 9, -4, 91, -69, 8, -13, 22, -45, 99, 39, 17, -31, 41, -62, 78, -73, -20, -91, -14, -34, -22, 9, -19, -34, -60, 41, -47, 73, 95, 14, 6, 64, -83, 13, 66, -50, -64, 97, 80, 50, -80, 29, -46, -32, 69, 27, 80, 65, 69, -47, -91, 31, 18, 15, 43, -77, 57, 89, 59, 64, 44, 56, -13, -26, 52, 91, -14, 60, 55, -92, 41, -86, 36, -87, -88, 29, -79, 86, 59, 64, -56, 78, 33}
+};
+int b[N][N] = {{-48, -70, -40, -82, -74, -63, -59, -72, -100, -72, -83, 55, 65, 91, 13, 98, 59, 51, -47, 10, -96, 64, -88, 97, 90, 37, -55, 60, 56, -70, -65, -10, 61, -30, 14, -55, 28, -79, 5, -43, 48, -46, 90, 56, -30, 19, 18, -96, 55, -55, -94, -55, -49, 79, -64, 55, 83, 30, 28, -28, 76, -45, -43, 26, -63, 87, -38, 30, -98, 74, -2, 75, -9, -94, 44, -83, 74, 68, -16, 48, -82, 18, -29, 47, -38, 12, -97, 93, 45, -34, 82, 15, 9, -9, -19, -81, 27, 81, -10, -76},
+{5, -84, 28, 56, 60, -33, -42, -50, -83, -83, 34, 99, 26, 64, 64, -28, -23, 30, -3, -69, -39, 4, -67, 43, -100, 1, 96, -48, 36, -58, -95, 22, -98, -60, -9, -87, 22, 27, 75, -95, -70, 66, -37, -47, -65, -48, 14, -73, 31, 20, -9, -22, 54, 68, -24, -90, 85, -63, 95, -100, -9, 74, 31, -26, 74, -64, -68, -21, -28, -31, 25, 58, -45, -37, 91, 36, -32, -61, -83, -86, 65, -44, 17, 36, -13, -59, -64, -25, 0, -54, 53, -23, -54, 26, 34, -94, 91, -51, -46, -98},
+{-5, 5, 48, 75, -78, -9, 9, 2, 88, 70, 68, 26, -6, 73, -35, -59, 71, -9, -69, 19, 93, 82, -18, -91, -36, -2, -89, -52, 52, -46, 1, -19, 94, 44, 43, -68, 78, 42, -50, -65, -66, -50, 10, 3, -76, 35, 56, 50, 40, -19, -39, 24, -21, 56, 70, 47, -23, 6, 52, 5, -30, -46, -44, -66, -98, -68, -72, -93, 28, 40, 7, 59, 40, -25, -73, -78, 72, -71, -19, 28, 78, -1, -78, 69, -78, 52, -48, -83, 78, -63, 76, -45, -12, -20, 47, 56, -26, 87, -33, 50},
+{69, 23, 66, 66, -11, 50, 67, 18, -58, 76, -37, 71, 40, 37, -33, -99, -6, -90, 68, 57, 31, -73, -36, 5, -53, -100, 18, -100, -19, 70, 29, 37, 99, -64, -25, 29, -48, 61, 1, 27, -48, -89, -50, 80, -46, -68, 21, 11, -32, -60, -8, -95, -23, 64, 85, -70, 70, -93, 58, 52, -10, 47, 5, -64, 57, -80, 97, -3, -4, -96, 53, -78, 80, -4, 20, 2, -68, 74, -88, -38, -62, 23, 64, -87, -65, 97, 55, -84, 52, -74, 61, -65, -17, -65, 71, 69, -64, 48, -82, 64},
+{30, 45, 32, 25, -73, 57, -67, -14, 53, -33, -24, -63, -66, -35, -2, -91, 43, 69, -32, 12, -53, 88, 65, -48, 0, 94, -40, -11, 20, -50, -13, 50, 18, -90, 66, 86, -5, 97, -100, 30, -27, -71, 7, 80, 76, 49, 46, 98, 70, -98, -18, -46, 14, -63, -95, 68, -57, 64, -80, -19, -70, -88, -19, -60, 71, -7, -13, 83, 51, -31, 40, 87, 38, -62, 99, 7, -46, -94, -66, -8, 46, -88, -16, -65, 20, 45, -55, 49, 88, -6, -89, -83, -75, 54, 75, 69, 83, 54, -19, -45},
+{98, -86, -63, 80, -45, -88, 80, -64, 58, -84, 40, -46, -29, 43, -46, 6, 3, -99, -64, 17, 59, -39, -85, -4, -60, 6, -49, -44, -27, -73, 50, -16, -95, -3, 70, -16, 99, 73, 96, 88, 35, 69, -93, -88, 77, 12, 72, -64, -66, 71, -49, -62, 6, -82, -66, -10, -47, -41, 90, 97, -37, 51, -90, 17, -27, 52, -51, 27, 7, -91, -44, -86, -37, -74, -52, 25, -63, -49, -85, -57, 61, 65, -9, 17, 42, -57, 30, -89, -66, 51, 66, -2, -44, -49, 73, 60, 94, -3, 69, -65},
+{-55, -39, -13, -27, -37, 8, -96, 84, -89, 31, -66, -29, -84, -34, -12, -51, -16, -87, 36, 97, -38, 32, 67, -22, 4, 14, -47, 18, 7, 59, 42, -68, -28, 1, -17, -37, 7, 63, -85, -96, -97, 61, -43, -23, 68, 11, 50, -12, 41, 34, -60, 22, -4, 26, -69, 83, -98, -58, 76, 75, -40, 59, 81, 84, 42, -1, -81, -66, -90, 31, -56, -73, -90, -43, -7, -64, -30, -32, 47, 26, -25, -76, 50, -34, -81, 54, -37, -87, 55, 64, 2, 5, 0, 76, 30, 37, -69, -97, -81, 41},
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+{79, 64, 89, 2, 9, -3, 96, -16, -8, -76, -27, 94, -92, -7, -78, 93, 55, -11, 70, -89, -9, -14, 63, -77, 13, 71, 9, -4, -84, -67, 19, 91, -13, 23, -77, -60, 46, 5, -100, 17, -20, -95, 57, -90, 95, 63, 25, -7, 38, 73, 3, 79, -56, 11, 17, -37, 72, -9, -27, -46, -99, 35, -25, -57, 97, -22, 35, -45, -54, 28, -49, -35, 63, 5, -89, -91, 29, -9, 25, 22, -44, -21, 62, -26, 57, -25, -2, -69, -50, -97, -52, 77, 9, -15, 8, -88, -36, 7, 30, 38}
+};
+int ans[N][N] = {{27825, 6208, 14855, -76487, -23589, 13948, 60449, 9292, 5604, -9756, -22675, -45561, 17930, -63936, -12238, -19403, 3315, -15456, 26500, -6732, -22568, -15660, -17943, 17880, 12327, 67980, -59031, -25615, -56993, -63122, 29272, -43311, 45185, -138, 14765, 3049, -56194, 32725, -9215, 3398, 10735, 201, 15258, -6540, 33460, 61218, -49451, -24641, -6074, -57323, 26200, 25857, -2873, 6765, -69796, -3190, -6219, 12269, -43383, -7388, -15272, -3804, 1643, 3712, 10370, 65858, 48163, 37336, 67676, 25072, 38449, 14182, -33513, -28897, 21273, 58255, -44501, 11407, 16859, -2110, -23827, -7322, -2997, -7629, 10701, 20785, 38371, 76015, -10289, -35258, -7572, -686, -14786, 8095, -46865, 33796, 8180, 6614, 31632, -22596},
+{24728, 42860, 6504, -26020, -28480, -4432, 9402, -20879, 43593, 3893, 36380, -19315, -18661, 4465, 49295, 24352, 58207, 47135, -44022, -38364, -50011, 7854, -48101, -191, -4184, 30617, -14578, 47336, 30249, 2036, 86239, 25400, -56511, -1418, 6008, -21545, -23766, -36211, -39210, -78582, 5770, 66195, -32411, 24298, 47426, -6569, 24162, 11364, -12508, 20138, 48788, 34961, -2613, 4442, 416, -3717, 50643, 58625, 29040, -71405, 10281, 12989, 31993, -2741, 58627, 1958, -97339, 70169, 36256, 25054, -20986, -28930, 28447, -27485, -21508, -22263, -15859, -46475, 6498, 15912, 10022, -6217, 77712, -12793, -52827, -1044, 15085, 58836, 38816, 4224, -37065, 2424, 32195, 50748, -30997, -37880, -208, 6197, -1199, 23600},
+{-7864, 4862, 36193, -28350, 2267, 13134, -29670, -1188, -26205, -1573, 18779, -22588, -5111, -18504, 15025, -4673, 6246, 24553, -38484, 6628, 30552, -51179, -20822, -4465, 27527, -23183, 24406, -18293, 13838, -10791, 70503, -15473, 25099, 42267, -56175, -3227, 12064, -5336, -31589, 15645, 3679, 21006, -8711, -25584, -27344, -682, 9895, -5159, 4003, 2819, -6096, 12518, -3928, -33014, 37010, 30438, 5445, -14248, -12301, -41725, -25035, 3008, -7833, 496, 40231, 47289, 30611, 22098, 23807, 72782, 32747, -1095, -16175, -60021, -38026, -15998, -39375, 58330, -5706, 62452, -15614, -14181, -13303, -42889, -31103, -23452, -23674, 23946, 2555, -3597, 26688, -26466, 26400, -62150, -10123, -49919, -8595, -5459, 23726, 26916},
+{-5215, 1811, -46839, 37044, 17737, -15324, 24948, -14754, 29311, -26533, 1608, 70413, 29851, 17935, -55878, 21821, -53769, 17514, 4234, -19678, 18376, -6882, 4440, -11484, 5830, -12431, 5433, -51803, -9833, -4730, -3396, -41555, 31058, -56923, 12157, 28642, -68, 44891, 14971, 60402, 1971, 11205, 774, -16091, 15867, 47825, -1704, 44967, -48334, 37382, 58175, -23846, -8637, -5114, 15322, 6678, -20759, -14593, -3550, 9794, -7989, 14165, 13981, -9131, 732, -25927, 7844, 11662, -24929, -41834, -19874, 14274, 83793, 48665, -10902, 21201, 32168, -43056, 68374, 4655, 11102, 51274, 9540, 5559, -7369, 56556, 30536, 59563, -24064, -74337, -27161, 14329, -115983, 70618, 16251, -10649, 64822, 21573, 9676, 2050},
+{4448, 23301, -24856, -798, 65146, 33646, 44106, 10730, 19424, 4108, 4568, -11946, -3608, 1532, -6768, 32504, -9111, -35415, 64794, 2418, 18112, 18016, 55445, -46314, -4912, -3239, 34174, -48998, -43343, 7019, 16020, -777, -16979, -27177, 30883, -16815, -28181, -57480, -8813, 57219, 11223, 28120, -10304, -65475, 65648, -12082, -5178, 41517, -11349, 31302, 54789, 72066, 1087, 14464, -3579, 12287, 40174, -44514, 20368, 30649, 51198, 54158, 48711, 51082, -63781, 29076, 24479, 20230, -20041, -54104, -45135, -18589, 24771, 18374, 22385, -17637, 17054, 7886, 8362, 41143, -68194, 46130, 20056, -27707, -19026, 2044, 7925, -4878, -31024, 47038, -3339, -53154, -25705, 39894, 6913, -17001, 48367, -5092, 47150, 95046},
+{-27647, 82312, 34627, 35581, -2731, 17408, 32993, 17564, 30879, 13097, 31540, 4882, -29419, 14526, -20059, -13079, 6592, -50271, -102612, -44385, 81860, 44346, -19627, -5983, -38489, -43096, 58723, 23928, 10182, -21278, -37996, 79545, 49537, 3801, -85809, -33881, -3251, 15276, -35767, 24034, -24114, -84041, -42881, -7004, 4415, -20090, 27248, -34359, 1176, 22387, 93100, 8882, 5727, 4181, 49188, -35291, 23656, -29928, -478, 33541, -16377, 20307, -26217, 10506, 20819, 3933, 45643, -2209, -22863, 825, 7068, 42614, 13518, -28362, -39188, 14601, 5928, 40045, 11058, -52813, 5027, 40970, -13347, 28842, 29220, 1847, 4553, -8269, 11176, -30236, -43218, 11899, -24658, 16307, -1893, 3159, -30690, 9794, -27404, 14554},
+{-15204, 9082, 69156, 6075, -5950, -70844, -1364, -31627, 35551, 6080, -18365, 9963, -15145, -23796, -25489, -233, -22554, 6604, -12576, 17576, -44934, 43089, -61511, 2644, 8182, 15619, -29706, -16095, 48678, -42825, -17437, 20479, -4049, 9078, -13801, 36103, 9360, -8698, 52390, -30865, -23607, 26430, 31515, 33783, -46704, -38521, -8169, -10508, -2756, -25774, 34647, -42192, 21773, -17349, -39724, -29441, 14356, 19158, -14066, -15628, -14956, -9789, 13005, -404, -11985, -27287, -47998, 45219, 23113, 54314, 30147, -16265, 8886, 89479, -59662, -5057, -1871, -23256, -53133, -40677, -41462, -9424, -28642, 22862, 16867, 13258, -19792, 65580, 19871, -11989, 3271, 41161, 26000, -39429, -12607, -9448, -69746, 23585, -48580, 22819},
+{-38067, -21111, 33260, -24081, 61102, -1122, 2719, 26854, -57145, 13462, -22861, -9335, -15945, 18108, 5314, 6548, -6674, -26412, -1160, 10226, 10442, -16020, 47327, 40764, -13748, 7522, 4155, 52748, 23312, -27954, 18374, 26327, 90422, -17598, -53710, -2975, 7135, -19652, 33143, -1455, 61513, -67512, 19972, -29539, -8655, -13246, -62131, -20161, 39182, -35132, -14179, 55839, -12215, -15266, 5024, 89292, 24847, 7894, -34501, -8984, -40857, -22961, -1184, 16425, -30409, 26143, -9614, 29223, -38457, 44536, 11190, 59034, -79546, -30028, 36821, 10090, -2547, 53279, -22434, 16741, -39195, -49262, -7382, -32172, 6364, 6643, 17498, -1129, 13030, 30247, -2718, -57602, 1505, 66114, -37498, 7720, 7330, 4825, 22665, 34992},
+{-13040, -7169, -35939, -41002, -8490, 73182, -11495, 32739, -21361, 42398, -13609, -20252, 35044, -8897, 15556, -27275, -7340, -18361, 22050, -31894, -43549, -53771, 19684, 11269, 2578, -22893, -11600, -17118, -44076, 29009, -22189, -12925, -8355, 19773, 2856, 4547, -16975, -20129, 34144, -12399, -40826, 48212, -7721, 12657, 37191, -21532, -12439, 4907, 46905, 10126, -31241, 13140, -14076, 3589, -30073, -8862, -30573, 4065, -1031, 52841, 49766, -6755, -17594, 7305, 2345, -14057, 2009, -53109, 20387, -33143, -27038, -4871, -60471, -60929, 20054, -15310, -17995, -18818, 27840, 39098, 16453, -59745, 26009, 74980, -72142, -19578, 84555, -103296, 10067, 28048, -23307, -11199, 45188, 21043, 8771, 26828, -38972, 31370, 2810, -28879},
+{-7819, 26065, 22829, -78855, 14641, 29824, 2069, -11940, -20485, 50239, -53739, 11312, 50935, -21713, 31181, 31922, 6336, -26098, -30076, -31626, -60898, 82870, 20609, -49821, 24550, -49470, 44250, -15347, 21038, 28337, -30242, -34373, 30111, 28504, 18800, -15419, -2036, 5835, 14767, -827, 45943, 16057, 15101, -26771, -54310, -50524, -16607, -5585, -26840, 6573, -4000, -26215, 551, -20323, 16274, -55699, -11781, -23489, 13384, 14246, -36723, 3708, 5752, -39817, -8147, -4266, 54921, 22544, 6364, -3402, -25291, -45211, 36018, -6390, 29857, -29449, -16579, -16078, 19973, 2972, 37444, 52506, -56580, 60872, 41337, 29341, -5116, -35260, -13171, 48448, -36526, 14204, -1419, 41962, -65848, -37229, 12800, -23013, -18732, -9443},
+{4893, -72950, -1055, -6195, -47058, -21336, -12520, 4978, -7127, -24219, 10617, -14071, 26836, -27283, 22610, 13641, 19235, 15339, 12615, 41904, 12418, 7188, -38806, 34215, 216, -17976, 26784, -4748, 52472, -45229, -26324, -47362, 14429, 28124, -15009, 38190, 34556, 32586, -38623, -55767, 14125, -8612, 57075, 11569, -81225, 13930, -11137, -40826, -5674, 17172, -2461, -76290, -18401, 23529, -8361, 12114, 10630, 34630, 28983, -3314, -47247, 52570, 56088, -18024, 2378, -26847, -35338, -25192, 2459, 1231, 3795, -14945, -26318, -23167, 4515, -62958, -27626, 9342, 23564, -2341, -31462, 25440, -32432, 2977, -12274, 66904, -7563, 48603, 2902, 10616, -10552, -6328, -22787, -17457, 24252, -52408, -7714, 43874, -29685, -4159},
+{-21397, -10293, 46655, 4238, 17721, -22513, 9946, 42933, -17843, 29663, 39332, -7578, -14042, -11000, 25885, 60, 26947, -81448, -7631, 14520, 36458, -28125, 62830, -25502, -15060, 45898, 23004, -9148, -32940, -61980, 70644, -34934, 32293, -12537, 31343, 34691, 7264, 3584, -20026, 50064, 97510, -45900, -27565, 17226, 16701, 58204, -34204, 61153, 19331, -43069, 4975, 23173, -44138, 16311, 32545, 6304, -36463, 1176, -84559, 26911, -15517, 26713, 47914, -22394, -4233, -30098, 7089, -6248, 35302, 5538, 42121, 20613, -40659, 33535, -20567, -28290, 16619, 29678, 6301, 15869, 5787, 4116, -22697, -56470, 1984, 29364, 29869, -15465, 4292, 26772, 28766, -12524, -15031, 26813, -29305, 37882, 17237, -3573, 19237, 4110},
+{-68130, 29729, -27442, 8127, -19331, -5040, -46645, -53365, 33521, 38718, -51253, 7156, -52374, -40597, -2529, 79, -18461, -11675, -60051, -11772, 46766, 48371, 40403, -41099, 26297, -11580, 14585, 9327, -969, -31437, 12623, 58808, -36549, 19955, -1720, 75937, 11518, -13460, 44373, 42987, 49547, -17378, 601, 35442, -9312, -19254, 64776, 33762, 26213, 27552, -30214, -23373, -2770, 15004, -2801, 23969, 11673, -4118, 4940, 87955, 41142, 5617, 14512, 6477, -44184, -15673, 3619, 4786, -42924, 85738, -38839, 35275, 40452, 37603, -38377, -55613, 38868, 8977, -28782, 30879, 21910, 655, 46546, 9826, 26352, 21336, 9462, -12398, -26345, 29719, -18525, -72046, -24843, 34574, -19880, 6230, -30912, 51333, 16484, 17686},
+{-47779, 9344, 8669, 43910, -50241, -19458, -60523, 89174, -32083, -52333, 7253, 16672, -16124, -40405, 39775, 77393, -42235, 8230, -14525, 42129, -7479, -62662, -62481, 10027, 14186, 35629, -4043, 24819, 19879, 17025, 4856, -11238, -58424, -18875, 242, -21627, -33153, -22329, 42683, -68138, 15781, 67623, -22271, 60839, 36166, -38277, -57094, 30278, -1922, -33728, -11969, -53922, 7925, -37573, 21599, -41921, -1390, -51381, -2511, -192, 55169, 14329, -4949, 26360, -12233, -9766, -33544, 37622, -51264, -3645, 36158, -76682, -62989, 46560, 19808, -18826, -22620, 56555, -1130, -52700, 27601, -15924, -6963, -34667, 28205, -54901, 38077, -8276, 25780, 15192, -17088, 83911, 4099, -40166, 8914, 11192, -13929, 15057, -55336, 3804},
+{14925, -38633, -22155, -14340, -22464, -21075, 28182, -50925, -30392, 17298, 18108, -69836, -8831, 26940, 11899, 23289, 46928, -18856, 23445, -19501, -77018, 2040, 3186, 20294, 15433, -33155, -15446, -20887, 31551, -21595, 52277, -8931, -16919, -29740, 43513, -45801, -47979, -5404, -55745, 40490, -14009, 44828, -7001, 40638, 72721, 49864, 26216, 26893, 39672, -12175, -36608, 72662, -81314, -25745, -66309, -20765, 8520, 23352, -18318, 17682, -16357, -6456, 60760, 30502, -24695, 44519, 41698, -29499, 5888, -703, 16809, 13906, -25487, 24238, -22500, -26141, 59923, 20079, -21623, 51299, -19881, -5395, 74289, -3840, 7453, -33245, 55916, -40785, -13888, 4813, 21515, -28270, 60997, -23681, -23731, 28083, -21695, -8329, -5695, 17905},
+{-23322, 13690, 1003, -27983, -8335, 17414, 67696, 25654, 31714, 64054, -15037, 10902, -15883, -24168, 62686, -24841, -45052, -15869, 19351, -632, 92424, -23621, 17249, -18790, -22316, 28854, 22561, 16798, -44706, 63405, 10308, -56968, -16740, 35885, -11030, 13971, -30015, 33265, -11874, -52643, 9434, 13056, 19217, -13833, 36142, -14693, -17910, -36234, -84848, 12492, -11115, 965, -87, 42222, -22269, 25918, -37592, -9294, 8361, -32508, -1741, 16389, 37656, 28343, 87798, 23150, -5225, 14074, 1059, -55955, 19365, -24856, 977, 9539, 15558, -3132, 30050, -5772, 26791, 39756, 25166, -63890, 17762, 33823, -31388, -8669, -3771, -8247, -17160, 38283, -65163, -3018, 13733, 83605, 9098, 32376, -53400, -11671, 80416, 9297},
+{-19821, -57946, -46795, 31764, -16391, -65357, 47367, -34978, 46345, 33166, 46431, -67205, 187, 27329, -19213, -26640, 24734, -73179, -59766, 44736, 31958, 28250, 15787, 27239, -33517, 16900, -10115, -8660, 15032, -63927, -14080, -13515, -13446, 21299, -9277, -8200, -25284, 64903, -28260, -9625, -19251, -61131, -4443, -6900, -3227, 16835, 14690, 39420, 24713, 29810, -46721, -37692, 8376, -24049, 6313, 17496, -36612, -24276, 20887, -984, 14869, 17698, -13182, -46538, 30084, -29386, -22198, -292, -53174, 53238, 8908, 54171, 26141, 21678, -48827, 14015, 34682, -4726, -34881, -31186, -57765, 11312, -87570, 16465, 26644, -11085, -18616, 13315, 18834, -53477, 8881, 41615, 23938, -27633, 1579, 33647, -24881, -26953, -12198, 42056},
+{-17099, -16268, 6993, -56135, 23730, -21548, -5269, -26230, -3173, -8743, 10245, 2685, 54851, -39337, -27603, 5010, -1030, 53371, -30735, -16962, -32535, 1072, -29359, 43480, 17078, -37284, 49783, 13659, -9453, -27464, -49663, -1805, -43247, 31291, 18005, 57077, -58023, 23477, -5059, 4904, 9401, 39223, 53374, -15581, -2277, 35619, -20043, -1333, -20691, 22868, -2481, 10205, -27794, 6088, 17447, 28682, 2894, 48429, -22903, -13101, -9656, -13291, 3809, 35104, 23625, 19591, -21752, -25125, 13943, -14733, 21416, -57344, -14755, 7388, 4320, -11275, 5819, -51812, -17794, 10135, -13162, -28635, 19104, 83160, 8693, -53945, 29269, 21632, -11848, 10175, -16396, -17866, 1285, 10790, 17586, -8201, 34816, -16666, 16452, -42670},
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+{83850, 5952, 6641, -33751, 14440, 17384, 57052, 3077, 34492, 2246, 30062, -7792, -40692, -24144, -13937, -8732, -34694, -16489, -42784, -21850, 16621, 33168, -49547, -42746, -60309, 86206, -143, 33427, -15982, 11296, 14012, -3509, -17724, 44243, -56312, 9520, -12610, 85580, -44243, -25386, -51814, 14900, 36105, 2197, 8637, -14628, -24178, -34045, -24375, -29269, -9720, 14204, 14580, -69373, 32481, 1097, 26318, -14427, 3805, 58664, -52883, -13273, 3238, -23251, -1490, 15632, -12439, 52288, 7496, -10106, 23361, -1020, -17534, -8410, -81101, 9723, -26812, 9236, -6275, -29674, -32342, -22880, 10345, -4122, -2, -80601, -3303, 8025, 10897, -14376, -12406, 21522, 65396, -29881, 18259, 32428, 33129, -36979, -16247, -37917}
+};
+
+int c[N][N];
+
+int main() {
+	int i, j, k;
+	for(i = 0; i < N; i ++) {
+		for(j = 0; j < N; j ++) {
+			c[i][j] = 0;
+			for(k = 0; k < N; k ++) {
+				c[i][j] += a[i][k] * b[k][j];
+			}
+			nemu_assert(c[i][j] == ans[i][j]);
+		}
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+
+}

apps/cputest/max.c

@@ -0,0 +1,26 @@
+#include "trap.h"
+
+int max(int x, int y) {
+	int z;
+	if(x > y) { z = x; }
+	else { z = y; }
+	return z;
+}
+
+int test_data[] = {0, 1, 2, 0x7fffffff, 0x80000000, 0x80000001, 0xfffffffe, 0xffffffff};
+int ans[] = {0, 0x1, 0x2, 0x7fffffff, 0, 0, 0, 0, 0x1, 0x1, 0x2, 0x7fffffff, 0x1, 0x1, 0x1, 0x1, 0x2, 0x2, 0x2, 0x7fffffff, 0x2, 0x2, 0x2, 0x2, 0x7fffffff, 0x7fffffff, 0x7fffffff, 0x7fffffff, 0x7fffffff, 0x7fffffff, 0x7fffffff, 0x7fffffff, 0, 0x1, 0x2, 0x7fffffff, 0x80000000, 0x80000001, 0xfffffffe, 0xffffffff, 0, 0x1, 0x2, 0x7fffffff, 0x80000001, 0x80000001, 0xfffffffe, 0xffffffff, 0, 0x1, 0x2, 0x7fffffff, 0xfffffffe, 0xfffffffe, 0xfffffffe, 0xffffffff, 0, 0x1, 0x2, 0x7fffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff};
+
+#define NR_DATA (sizeof(test_data) / sizeof(test_data[0]))
+
+int main() {
+	int i, j, ans_idx = 0;
+	for(i = 0; i < NR_DATA; i ++) {
+		for(j = 0; j < NR_DATA; j ++) {
+			nemu_assert(max(test_data[i], test_data[j]) == ans[ans_idx ++]);
+		}
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/mov-c.c

@@ -0,0 +1,27 @@
+#include "trap.h"
+
+int A[10];
+int b;
+
+int main() {
+	A[0] = 0;
+	A[1] = 1;
+	A[2] = 2;
+	A[3] = 3;
+	A[4] = 4;
+
+	b = A[3];
+	A[5] = b;
+	
+	nemu_assert(A[0] == 0);
+	nemu_assert(A[1] == 1);
+	nemu_assert(A[2] == 2);
+	nemu_assert(A[3] == 3);
+	nemu_assert(A[4] == 4);
+	nemu_assert(b == 3);
+	nemu_assert(A[5] == 3);
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/movsx.c

@@ -0,0 +1,35 @@
+#include "trap.h"
+
+int A[10];
+int b;
+char C[10];
+int main() {
+	A[0] = 0;
+	A[1] = 1;
+	A[2] = 2;
+	A[3] = 3;
+	A[4] = 4;
+
+	b = A[3];
+	A[5] = b;
+	C[0] = 'a';
+	nemu_assert(C[0] == 'a');
+	C[1] = C[0];
+	nemu_assert(C[1] == 'a');
+	A[0] = (int)C[0];
+	nemu_assert(A[0] == 'a');
+	C[1] = 0x80;
+	A[0] = (int)C[1];
+	nemu_assert(A[1] == 1);
+	nemu_assert(A[2] == 2);
+	nemu_assert(A[3] == 3);
+	nemu_assert(A[4] == 4);
+	nemu_assert(b == 3);
+	nemu_assert(A[5] == 3);
+	nemu_assert(C[1] == 0xffffff80);
+	nemu_assert(A[0] == 0xffffff80);
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/mul-longlong.c

@@ -0,0 +1,25 @@
+#include "trap.h"
+
+long long mul(long long a,long long b) {
+	long long ans = a*b;
+	return ans;
+}
+
+int test_data[] = { 0xaeb1c2aa, 0x4500ff2b, 0x877190af, 0x11f42438};
+long long ans[] = { 0x19d29ab9db1a18e4LL, 0xea15986d3ac3088eLL, 0x2649e980fc0db236LL, 0xfa4c43da0a4a7d30LL, 0x1299898e2c56b139LL, 0xdf8123d50a319e65LL, 0x4d6dfa84c15dd68LL, 0x38c5d79b9e4357a1LL, 0xf78b91cb1efc4248LL, 0x14255a47fdfcc40LL};
+
+#define NR_DATA (sizeof(test_data) / sizeof(test_data[0]))
+
+int main() {
+	int i,j,ans_idx = 0;
+	for (i = 0;i < NR_DATA;i++) {
+		for (j = i;j < NR_DATA;j++) { 
+			nemu_assert(ans[ans_idx++] == mul(test_data[i],test_data[j]));
+		}
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}
+			

apps/cputest/pascal.c

@@ -0,0 +1,28 @@
+#include "trap.h"
+//#include "stdio.h"
+
+#define N 31
+
+int a[N][N];
+int ans[] = {1, 30, 435, 4060, 27405, 142506, 593775, 2035800, 5852925, 14307150, 30045015, 54627300, 86493225, 119759850, 145422675, 155117520, 145422675, 119759850, 86493225, 54627300, 30045015, 14307150, 5852925, 2035800, 593775, 142506, 27405, 4060, 435, 30, 1};
+
+int main() {
+	int i, j;
+	for(i = 0; i < N; i ++) {
+		a[i][0] = a[i][i] = 1;
+	}
+
+	for(i = 2; i < N; i ++) {
+		for(j = 1; j < i; j ++) {
+			a[i][j] = a[i - 1][j - 1] + a[i - 1][j];
+		}
+	}
+
+	for(j = 0; j <= 30; j ++) {
+		nemu_assert(a[30][j] == ans[j]);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/prime.c

@@ -0,0 +1,26 @@
+#include "trap.h"
+
+int ans[] = {101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199};
+
+int main() {
+	int m, i, n = 0;
+	int prime;
+	for(m = 101; m <= 200; m += 2) {
+		prime = 1;
+		for(i = 2; i < m; i ++) {
+			if(m % i == 0) {
+				prime = 0;
+				break;
+			}
+		}
+		if(prime) {
+			nemu_assert(i == ans[n]);
+			n ++;
+		}
+	}
+
+	nemu_assert(n == 21);
+
+	HIT_GOOD_TRAP;
+	return 0;
+}

apps/cputest/quadratic-eq.c

@@ -0,0 +1,25 @@
+#include "trap.h"
+#include "FLOAT.h"
+
+/* solve 0.5x^2 + 0.5x - 0.5 = 0 */
+
+int main() {
+	FLOAT a = f2F(0.5);
+	FLOAT b = f2F(0.5);
+	FLOAT c = f2F(-0.5);
+
+	FLOAT dt = F_mul_F(b, b) - F_mul_F(F_mul_int(a, 4), c);
+	FLOAT sqrt_dt = sqrt(dt);
+
+	FLOAT x1 = F_div_F(-b + sqrt_dt, F_mul_int(a, 2));
+	FLOAT x2 = F_div_F(-b - sqrt_dt, F_mul_int(a, 2));
+
+	FLOAT x1_ans = f2F(0.618);
+	FLOAT x2_ans = f2F(-1.618);
+
+	nemu_assert(Fabs(x1_ans - x1) < f2F(1e-4));
+	nemu_assert(Fabs(x2_ans - x2) < f2F(1e-4));
+
+	HIT_GOOD_TRAP;
+	return 0;
+}

apps/cputest/quick-sort.c

@@ -0,0 +1,47 @@
+#include "trap.h"
+
+#define N 100
+
+int a[N] = {81, 37, 64, 23, 38, 65, 56, 15, 8, 33, 85, 39, 71, 12, 77, 6, 82, 89, 80, 35, 0, 59, 73, 4, 61, 30, 74, 69, 13, 42, 68, 63, 9, 29, 47, 36, 99, 25, 21, 14, 60, 3, 2, 18, 26, 83, 53, 5, 43, 67, 88, 70, 76, 92, 94, 48, 34, 49, 66, 95, 78, 62, 32, 52, 16, 72, 27, 28, 22, 40, 84, 91, 96, 57, 87, 51, 98, 1, 10, 11, 24, 20, 19, 31, 7, 97, 50, 86, 79, 17, 75, 55, 93, 44, 58, 54, 45, 41, 90, 46};
+
+int partition(int *a, int p, int q) {
+	int pivot = a[p];
+	int i = p, j = q;
+	while(i < j) {
+		while(i < j && a[j] > pivot) j --;
+		a[i] = a[j];
+
+		while(i < j && a[i] <= pivot) i ++;
+		a[j] = a[i];
+	}
+
+	a[i] = pivot;
+	return i;
+}
+
+void quick_sort(int *a, int p, int q) {
+	if(p >= q) return;
+
+	int m = partition(a, p, q);
+	quick_sort(a, p, m - 1);
+	quick_sort(a, m + 1, q);
+}
+
+int main() {
+	quick_sort(a, 0, N - 1);
+
+	int i;
+	for(i = 0; i < N; i ++) {
+		nemu_assert(a[i] == i);
+	}
+
+	quick_sort(a, 0, N - 1);
+
+	for(i = 0; i < N; i ++) {
+		nemu_assert(a[i] == i);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/select-sort.c

@@ -0,0 +1,40 @@
+#include "trap.h"
+
+#define N 100
+
+int a[N] = {81, 37, 64, 23, 38, 65, 56, 15, 8, 33, 85, 39, 71, 12, 77, 6, 82, 89, 80, 35, 0, 59, 73, 4, 61, 30, 74, 69, 13, 42, 68, 63, 9, 29, 47, 36, 99, 25, 21, 14, 60, 3, 2, 18, 26, 83, 53, 5, 43, 67, 88, 70, 76, 92, 94, 48, 34, 49, 66, 95, 78, 62, 32, 52, 16, 72, 27, 28, 22, 40, 84, 91, 96, 57, 87, 51, 98, 1, 10, 11, 24, 20, 19, 31, 7, 97, 50, 86, 79, 17, 75, 55, 93, 44, 58, 54, 45, 41, 90, 46};
+
+void select_sort() {
+	int i, j, k, t;
+	for(i = 0; i < N - 1; i ++) {
+		k = i;
+		for(j = i + 1; j < N; j ++) {
+			if(a[j] < a[k]) {
+				k = j;
+			}
+		}
+
+		t = a[i];
+		a[i] = a[k];
+		a[k] = t;
+	}
+}
+
+int main() {
+	select_sort();
+
+	int i;
+	for(i = 0; i < N; i ++) {
+		nemu_assert(a[i] == i);
+	}
+
+	select_sort();
+
+	for(i = 0; i < N; i ++) {
+		nemu_assert(a[i] == i);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/shift.c

@@ -0,0 +1,40 @@
+
+#include "trap.h"
+#define ARR_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+unsigned test[] = {
+	0x12345678, 0x98765432, 0x0, 0xeffa1000, 0x7fffffff, 0x80000000, 0x33, 0xffffffff
+};
+
+unsigned srl_ans[] = {
+	0x2468ac, 0x130eca8, 0x0, 0x1dff420, 0xffffff, 0x1000000, 0x0, 0x1ffffff
+};
+
+unsigned srlv_ans[] = {
+	0x1234567, 0x4c3b2a1, 0x0, 0x1dff420, 0x7fffff, 0x400000, 0x0, 0x1fffff
+};
+
+unsigned srav_ans[] = {
+	0x1234567, 0xfcc3b2a1, 0x0, 0xffdff420, 0x7fffff, 0xffc00000, 0x0, 0xffffffff
+};
+
+
+int main() {
+	unsigned i;
+
+	for(i = 0; i < ARR_SIZE(test); i ++) {
+		nemu_assert((test[i] >> 7) == srl_ans[i]);
+	}
+
+	for(i = 0; i < ARR_SIZE(test); i ++) {
+		nemu_assert((unsigned)((int)test[i] >> (i + 4)) == srav_ans[i]);
+	}
+
+	for(i = 0; i < ARR_SIZE(test); i ++) {
+		nemu_assert((test[i] >> (i + 4)) == srlv_ans[i]);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/shuixianhua.c

@@ -0,0 +1,28 @@
+#include "trap.h"
+
+int ans[] = {153, 370, 371, 407};
+
+int cube(int n) {
+	return n * n * n;
+}
+
+int main() {
+	int n, n2, n1, n0;
+	int k = 0;
+	for(n = 100; n < 1000; n ++) {
+		n2 = n / 100;
+		n1 = (n / 10) % 10;
+		n0 = n % 10;
+
+		if(n == cube(n2) + cube(n1) + cube(n0)) {
+			nemu_assert(n == ans[k]);
+			k ++;
+		}
+	}
+
+	nemu_assert(k == 4);
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/string.c

@@ -0,0 +1,29 @@
+#include "trap.h"
+#include <string.h>
+
+char *s[] = {
+	"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 
+	"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab",
+	"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
+	", World!\n",
+	"Hello, World!\n",
+	"#####"
+};
+
+char str1[] = "Hello";
+char str[20];
+
+int main() {
+	nemu_assert(strcmp(s[0], s[2]) == 0);
+	nemu_assert(strcmp(s[0], s[1]) == -1);
+	nemu_assert(strcmp(s[0] + 1, s[1] + 1) == -1);
+	nemu_assert(strcmp(s[0] + 2, s[1] + 2) == -1);
+	nemu_assert(strcmp(s[0] + 3, s[1] + 3) == -1);
+
+	nemu_assert(strcmp( strcat(strcpy(str, str1), s[3]), s[4]) == 0);
+
+	nemu_assert(memcmp(memset(str, '#', 5), s[5], 5) == 0);
+
+	HIT_GOOD_TRAP;
+	return 0;
+}

apps/cputest/struct.c

@@ -0,0 +1,32 @@
+#include "trap.h"
+
+#define N 100
+
+struct dummy {
+	int pad1[N];
+	char pad2[N];
+} d;
+
+__attribute__((noinline))
+struct dummy fun(struct dummy a) {
+	return a;
+}
+
+int main() {
+	int i;
+	for(i = 0; i < N; i ++) {
+		d.pad1[i] = i + 128;
+		d.pad2[i] = i;
+	}
+
+	struct dummy t = fun(d);
+
+	for(i = 0; i < N; i ++) {
+		nemu_assert(t.pad1[i] == i + 128);
+		nemu_assert(t.pad2[i] == i);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/sub-longlong.c

@@ -0,0 +1,24 @@
+#include "trap.h"
+
+long long sub(long long a, long long b) {
+	long long c = a - b;
+	return c;
+}
+
+long long test_data[] = {0, 1, 2, 0x7fffffffffffffffLL, 0x8000000000000000LL, 0x8000000000000001LL, 0xfffffffffffffffeLL, 0xffffffffffffffffLL};
+long long ans[] = {0LL, 0xffffffffffffffffLL, 0xfffffffffffffffeLL, 0x8000000000000001LL, 0x8000000000000000LL, 0x7fffffffffffffffLL, 0x2LL, 0x1LL, 0x1LL, 0LL, 0xffffffffffffffffLL, 0x8000000000000002LL, 0x8000000000000001LL, 0x8000000000000000LL, 0x3LL, 0x2LL, 0x2LL, 0x1LL, 0LL, 0x8000000000000003LL, 0x8000000000000002LL, 0x8000000000000001LL, 0x4LL, 0x3LL, 0x7fffffffffffffffLL, 0x7ffffffffffffffeLL, 0x7ffffffffffffffdLL, 0LL, 0xffffffffffffffffLL, 0xfffffffffffffffeLL, 0x8000000000000001LL, 0x8000000000000000LL, 0x8000000000000000LL, 0x7fffffffffffffffLL, 0x7ffffffffffffffeLL, 0x1LL, 0LL, 0xffffffffffffffffLL, 0x8000000000000002LL, 0x8000000000000001LL, 0x8000000000000001LL, 0x8000000000000000LL, 0x7fffffffffffffffLL, 0x2LL, 0x1LL, 0LL, 0x8000000000000003LL, 0x8000000000000002LL, 0xfffffffffffffffeLL, 0xfffffffffffffffdLL, 0xfffffffffffffffcLL, 0x7fffffffffffffffLL, 0x7ffffffffffffffeLL, 0x7ffffffffffffffdLL, 0LL, 0xffffffffffffffffLL, 0xffffffffffffffffLL, 0xfffffffffffffffeLL, 0xfffffffffffffffdLL, 0x8000000000000000LL, 0x7fffffffffffffffLL, 0x7ffffffffffffffeLL, 0x1LL, 0LL};
+
+#define NR_DATA (sizeof(test_data) / sizeof(test_data[0]))
+
+int main() {
+	int i, j, ans_idx = 0;
+	for(i = 0; i < NR_DATA; i ++) {
+		for(j = 0; j < NR_DATA; j ++) {
+			nemu_assert(sub(test_data[i], test_data[j]) == ans[ans_idx ++]);
+		}
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/sum.c

@@ -0,0 +1,14 @@
+#include "trap.h"
+
+int main() {
+	int i = 1, sum = 0;
+	while(i <= 100) {
+		sum += i;
+		i ++;
+	}
+
+	nemu_assert(sum == 5050);
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/switch.c

@@ -0,0 +1,29 @@
+#include "trap.h"
+
+int switch_case(int n) {
+	int ret;
+	switch(n) {
+		case 0: ret = 0; break;
+		case 1: ret = 2; break;
+		case 2: case 3: ret = 5; break;
+		case 4: case 5: case 6: case 7: ret = 8; break;
+		case 8: case 9: case 10: case 11: ret = 10; break;
+		case 12: ret = 15; break;
+		default: ret = -1; break;
+	}
+
+	return ret;
+}
+
+int ans[] = {-1, 0, 2, 5, 5, 8, 8, 8, 8, 10, 10, 10, 10, 15, -1};
+
+int main() {
+	int i;
+	for(i = 0; i < 15; i ++) {
+		nemu_assert(switch_case(i - 1) == ans[i]);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/swl.c

@@ -0,0 +1,16 @@
+
+#include "trap.h"
+
+unsigned x = 0xffffffff;
+
+int main() {
+
+	*((unsigned*)0x1003) = 0xaabbccdd;
+
+	x = *((unsigned*)0x1003);
+	nemu_assert(x == 0xaabbccdd);
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/to-lower-case.c

@@ -0,0 +1,20 @@
+#include "trap.h"
+
+char to_lower_case(char c) {
+	return (c >= 'A' && c <= 'Z' ? (c + 32) : c);
+}
+
+char ans [] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 
+	97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122,
+	91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127};
+
+int main() {
+	int i;
+	for(i = 0; i < 128; i ++) {
+		nemu_assert(to_lower_case(i) == ans[i]);
+	}
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}

apps/cputest/trap.h

@@ -0,0 +1,14 @@
+#ifndef __TRAP_H__
+#define __TRAP_H__
+
+#define HIT_GOOD_TRAP \
+  do { \
+    _halt(0); \
+  } while (0)
+
+__attribute__((noinline))
+void nemu_assert(int cond) {
+  if (!cond) _halt(1);
+}
+
+#endif

apps/cputest/wanshu.c

@@ -0,0 +1,26 @@
+#include "trap.h"
+
+int ans[] = {6, 28, 496};
+
+int main() {
+	int n, sum, i, k = 0;
+	for(n = 1; n < 500; n ++) {
+		sum = 0;
+		for(i = 1; i < n; i ++) {
+			if(n % i == 0) {
+				sum += i;
+			}
+		}
+		
+		if(sum == n) {
+			nemu_assert(n == ans[k]);
+			k ++;
+		}
+	}
+
+	nemu_assert(k == 3);
+
+	HIT_GOOD_TRAP;
+
+	return 0;
+}