--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uprogs/wc.asm	Sun Oct 22 18:25:39 2017 +0900
@@ -0,0 +1,1904 @@
+
+_wc:     file format elf32-littlearm
+
+
+Disassembly of section .text:
+
+00000000 <main>:
+int
+main(int argc, char *argv[])
+{
+  int fd, i;
+
+  if(argc <= 1){
+   0:	e3500001 	cmp	r0, #1
+  printf(1, "%d %d %d %s\n", l, w, c, name);
+}
+
+int
+main(int argc, char *argv[])
+{
+   4:	e92d49f8 	push	{r3, r4, r5, r6, r7, r8, fp, lr}
+   8:	e1a08000 	mov	r8, r0
+   c:	e28db01c 	add	fp, sp, #28
+  }
+  printf(1, "%d %d %d %s\n", l, w, c, name);
+}
+
+int
+main(int argc, char *argv[])
+  10:	c2814004 	addgt	r4, r1, #4
+  14:	c3a05001 	movgt	r5, #1
+{
+  int fd, i;
+
+  if(argc <= 1){
+  18:	da000013 	ble	6c <main+0x6c>
+    wc(0, "");
+    exit();
+  }
+
+  for(i = 1; i < argc; i++){
+    if((fd = open(argv[i], 0)) < 0){
+  1c:	e5940000 	ldr	r0, [r4]
+  20:	e3a01000 	mov	r1, #0
+  24:	eb000164 	bl	5bc <open>
+  28:	e1a06004 	mov	r6, r4
+  2c:	e2844004 	add	r4, r4, #4
+  30:	e2507000 	subs	r7, r0, #0
+  34:	ba000007 	blt	58 <main+0x58>
+      printf(1, "wc: cannot open %s\n", argv[i]);
+      exit();
+    }
+    wc(fd, argv[i]);
+  38:	e5141004 	ldr	r1, [r4, #-4]
+  3c:	eb000010 	bl	84 <wc>
+  if(argc <= 1){
+    wc(0, "");
+    exit();
+  }
+
+  for(i = 1; i < argc; i++){
+  40:	e2855001 	add	r5, r5, #1
+    if((fd = open(argv[i], 0)) < 0){
+      printf(1, "wc: cannot open %s\n", argv[i]);
+      exit();
+    }
+    wc(fd, argv[i]);
+    close(fd);
+  44:	e1a00007 	mov	r0, r7
+  48:	eb000134 	bl	520 <close>
+  if(argc <= 1){
+    wc(0, "");
+    exit();
+  }
+
+  for(i = 1; i < argc; i++){
+  4c:	e1550008 	cmp	r5, r8
+  50:	1afffff1 	bne	1c <main+0x1c>
+      exit();
+    }
+    wc(fd, argv[i]);
+    close(fd);
+  }
+  exit();
+  54:	eb0000f0 	bl	41c <exit>
+    exit();
+  }
+
+  for(i = 1; i < argc; i++){
+    if((fd = open(argv[i], 0)) < 0){
+      printf(1, "wc: cannot open %s\n", argv[i]);
+  58:	e3a00001 	mov	r0, #1
+  5c:	e59f1018 	ldr	r1, [pc, #24]	; 7c <main+0x7c>
+  60:	e5962000 	ldr	r2, [r6]
+  64:	eb00023f 	bl	968 <printf>
+      exit();
+  68:	eb0000eb 	bl	41c <exit>
+main(int argc, char *argv[])
+{
+  int fd, i;
+
+  if(argc <= 1){
+    wc(0, "");
+  6c:	e3a00000 	mov	r0, #0
+  70:	e59f1008 	ldr	r1, [pc, #8]	; 80 <main+0x80>
+  74:	eb000002 	bl	84 <wc>
+    exit();
+  78:	eb0000e7 	bl	41c <exit>
+  7c:	00000c78 	.word	0x00000c78
+  80:	00000c74 	.word	0x00000c74
+
+00000084 <wc>:
+
+char buf[512];
+
+void
+wc(int fd, char *name)
+{
+  84:	e92d4ff0 	push	{r4, r5, r6, r7, r8, r9, sl, fp, lr}
+  88:	e28db020 	add	fp, sp, #32
+  8c:	e24dd014 	sub	sp, sp, #20
+  90:	e50b0028 	str	r0, [fp, #-40]	; 0x28
+  94:	e50b102c 	str	r1, [fp, #-44]	; 0x2c
+  int i, n;
+  int l, w, c, inword;
+
+  l = w = c = 0;
+  inword = 0;
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+  98:	e51b0028 	ldr	r0, [fp, #-40]	; 0x28
+  9c:	e59f10c8 	ldr	r1, [pc, #200]	; 16c <wc+0xe8>
+  a0:	e3a02c02 	mov	r2, #512	; 0x200
+  a4:	eb000103 	bl	4b8 <read>
+{
+  int i, n;
+  int l, w, c, inword;
+
+  l = w = c = 0;
+  inword = 0;
+  a8:	e3a05000 	mov	r5, #0
+wc(int fd, char *name)
+{
+  int i, n;
+  int l, w, c, inword;
+
+  l = w = c = 0;
+  ac:	e1a04005 	mov	r4, r5
+  b0:	e1a07005 	mov	r7, r5
+  b4:	e1a06005 	mov	r6, r5
+  inword = 0;
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+  b8:	e250a000 	subs	sl, r0, #0
+  bc:	da00001c 	ble	134 <wc+0xb0>
+  c0:	e59f90a4 	ldr	r9, [pc, #164]	; 16c <wc+0xe8>
+  c4:	e3a08000 	mov	r8, #0
+  c8:	ea000002 	b	d8 <wc+0x54>
+    for(i=0; i<n; i++){
+  cc:	e2888001 	add	r8, r8, #1
+  d0:	e158000a 	cmp	r8, sl
+  d4:	0a00000f 	beq	118 <wc+0x94>
+      c++;
+      if(buf[i] == '\n')
+  d8:	e7d91008 	ldrb	r1, [r9, r8]
+        l++;
+      if(strchr(" \r\t\n\v", buf[i]))
+  dc:	e59f008c 	ldr	r0, [pc, #140]	; 170 <wc+0xec>
+  l = w = c = 0;
+  inword = 0;
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+    for(i=0; i<n; i++){
+      c++;
+      if(buf[i] == '\n')
+  e0:	e351000a 	cmp	r1, #10
+        l++;
+  e4:	02866001 	addeq	r6, r6, #1
+      if(strchr(" \r\t\n\v", buf[i]))
+  e8:	eb00005e 	bl	268 <strchr>
+  ec:	e3500000 	cmp	r0, #0
+        inword = 0;
+  f0:	13a05000 	movne	r5, #0
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+    for(i=0; i<n; i++){
+      c++;
+      if(buf[i] == '\n')
+        l++;
+      if(strchr(" \r\t\n\v", buf[i]))
+  f4:	1afffff4 	bne	cc <wc+0x48>
+        inword = 0;
+      else if(!inword){
+  f8:	e3550000 	cmp	r5, #0
+        w++;
+  fc:	02877001 	addeq	r7, r7, #1
+        inword = 1;
+ 100:	03a05001 	moveq	r5, #1
+      c++;
+      if(buf[i] == '\n')
+        l++;
+      if(strchr(" \r\t\n\v", buf[i]))
+        inword = 0;
+      else if(!inword){
+ 104:	0afffff0 	beq	cc <wc+0x48>
+  int l, w, c, inword;
+
+  l = w = c = 0;
+  inword = 0;
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+    for(i=0; i<n; i++){
+ 108:	e2888001 	add	r8, r8, #1
+ 10c:	e158000a 	cmp	r8, sl
+      c++;
+      if(buf[i] == '\n')
+        l++;
+      if(strchr(" \r\t\n\v", buf[i]))
+        inword = 0;
+      else if(!inword){
+ 110:	e3a05001 	mov	r5, #1
+  int l, w, c, inword;
+
+  l = w = c = 0;
+  inword = 0;
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+    for(i=0; i<n; i++){
+ 114:	1affffef 	bne	d8 <wc+0x54>
+  int i, n;
+  int l, w, c, inword;
+
+  l = w = c = 0;
+  inword = 0;
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+ 118:	e51b0028 	ldr	r0, [fp, #-40]	; 0x28
+ 11c:	e59f1048 	ldr	r1, [pc, #72]	; 16c <wc+0xe8>
+ 120:	e3a02c02 	mov	r2, #512	; 0x200
+ 124:	eb0000e3 	bl	4b8 <read>
+#include "user.h"
+
+char buf[512];
+
+void
+wc(int fd, char *name)
+ 128:	e0844008 	add	r4, r4, r8
+  int i, n;
+  int l, w, c, inword;
+
+  l = w = c = 0;
+  inword = 0;
+  while((n = read(fd, buf, sizeof(buf))) > 0){
+ 12c:	e250a000 	subs	sl, r0, #0
+ 130:	caffffe2 	bgt	c0 <wc+0x3c>
+        inword = 1;
+      }
+    }
+  }
+  if(n < 0){
+    printf(1, "wc: read error\n");
+ 134:	e3a00001 	mov	r0, #1
+        w++;
+        inword = 1;
+      }
+    }
+  }
+  if(n < 0){
+ 138:	1a000008 	bne	160 <wc+0xdc>
+    printf(1, "wc: read error\n");
+    exit();
+  }
+  printf(1, "%d %d %d %s\n", l, w, c, name);
+ 13c:	e51bc02c 	ldr	ip, [fp, #-44]	; 0x2c
+ 140:	e59f102c 	ldr	r1, [pc, #44]	; 174 <wc+0xf0>
+ 144:	e1a02006 	mov	r2, r6
+ 148:	e1a03007 	mov	r3, r7
+ 14c:	e58d4000 	str	r4, [sp]
+ 150:	e58dc004 	str	ip, [sp, #4]
+ 154:	eb000203 	bl	968 <printf>
+}
+ 158:	e24bd020 	sub	sp, fp, #32
+ 15c:	e8bd8ff0 	pop	{r4, r5, r6, r7, r8, r9, sl, fp, pc}
+        inword = 1;
+      }
+    }
+  }
+  if(n < 0){
+    printf(1, "wc: read error\n");
+ 160:	e59f1010 	ldr	r1, [pc, #16]	; 178 <wc+0xf4>
+ 164:	eb0001ff 	bl	968 <printf>
+    exit();
+ 168:	eb0000ab 	bl	41c <exit>
+ 16c:	00000cb4 	.word	0x00000cb4
+ 170:	00000c50 	.word	0x00000c50
+ 174:	00000c68 	.word	0x00000c68
+ 178:	00000c58 	.word	0x00000c58
+
+0000017c <strcpy>:
+#include "user.h"
+#include "arm.h"
+
+char*
+strcpy(char *s, char *t)
+{
+ 17c:	e52db004 	push	{fp}		; (str fp, [sp, #-4]!)
+  char *os;
+
+  os = s;
+  while((*s++ = *t++) != 0)
+ 180:	e1a02000 	mov	r2, r0
+#include "user.h"
+#include "arm.h"
+
+char*
+strcpy(char *s, char *t)
+{
+ 184:	e28db000 	add	fp, sp, #0
+  char *os;
+
+  os = s;
+  while((*s++ = *t++) != 0)
+ 188:	e4d13001 	ldrb	r3, [r1], #1
+ 18c:	e3530000 	cmp	r3, #0
+ 190:	e4c23001 	strb	r3, [r2], #1
+ 194:	1afffffb 	bne	188 <strcpy+0xc>
+    ;
+  return os;
+}
+ 198:	e28bd000 	add	sp, fp, #0
+ 19c:	e8bd0800 	pop	{fp}
+ 1a0:	e12fff1e 	bx	lr
+
+000001a4 <strcmp>:
+
+int
+strcmp(const char *p, const char *q)
+{
+ 1a4:	e52db004 	push	{fp}		; (str fp, [sp, #-4]!)
+ 1a8:	e28db000 	add	fp, sp, #0
+  while(*p && *p == *q)
+ 1ac:	e5d03000 	ldrb	r3, [r0]
+ 1b0:	e5d12000 	ldrb	r2, [r1]
+ 1b4:	e3530000 	cmp	r3, #0
+ 1b8:	1a000004 	bne	1d0 <strcmp+0x2c>
+ 1bc:	ea000005 	b	1d8 <strcmp+0x34>
+ 1c0:	e5f03001 	ldrb	r3, [r0, #1]!
+ 1c4:	e3530000 	cmp	r3, #0
+ 1c8:	0a000006 	beq	1e8 <strcmp+0x44>
+ 1cc:	e5f12001 	ldrb	r2, [r1, #1]!
+ 1d0:	e1530002 	cmp	r3, r2
+ 1d4:	0afffff9 	beq	1c0 <strcmp+0x1c>
+    p++, q++;
+  return (uchar)*p - (uchar)*q;
+}
+ 1d8:	e0620003 	rsb	r0, r2, r3
+ 1dc:	e28bd000 	add	sp, fp, #0
+ 1e0:	e8bd0800 	pop	{fp}
+ 1e4:	e12fff1e 	bx	lr
+}
+
+int
+strcmp(const char *p, const char *q)
+{
+  while(*p && *p == *q)
+ 1e8:	e5d12001 	ldrb	r2, [r1, #1]
+ 1ec:	eafffff9 	b	1d8 <strcmp+0x34>
+
+000001f0 <strlen>:
+  return (uchar)*p - (uchar)*q;
+}
+
+uint
+strlen(char *s)
+{
+ 1f0:	e52db004 	push	{fp}		; (str fp, [sp, #-4]!)
+ 1f4:	e28db000 	add	fp, sp, #0
+  int n;
+
+  for(n = 0; s[n]; n++)
+ 1f8:	e5d03000 	ldrb	r3, [r0]
+ 1fc:	e3530000 	cmp	r3, #0
+ 200:	01a00003 	moveq	r0, r3
+ 204:	0a000006 	beq	224 <strlen+0x34>
+ 208:	e1a02000 	mov	r2, r0
+ 20c:	e3a03000 	mov	r3, #0
+ 210:	e5f21001 	ldrb	r1, [r2, #1]!
+ 214:	e2833001 	add	r3, r3, #1
+ 218:	e1a00003 	mov	r0, r3
+ 21c:	e3510000 	cmp	r1, #0
+ 220:	1afffffa 	bne	210 <strlen+0x20>
+    ;
+  return n;
+}
+ 224:	e28bd000 	add	sp, fp, #0
+ 228:	e8bd0800 	pop	{fp}
+ 22c:	e12fff1e 	bx	lr
+
+00000230 <memset>:
+memset(void *dst, int c, uint n)
+{
+  char *p=dst;
+  u32 rc=n;
+
+  while (rc-- > 0) *p++ = c;
+ 230:	e3520000 	cmp	r2, #0
+  return n;
+}
+
+void*
+memset(void *dst, int c, uint n)
+{
+ 234:	e52db004 	push	{fp}		; (str fp, [sp, #-4]!)
+ 238:	e28db000 	add	fp, sp, #0
+  char *p=dst;
+  u32 rc=n;
+
+  while (rc-- > 0) *p++ = c;
+ 23c:	0a000006 	beq	25c <memset+0x2c>
+ 240:	e6ef1071 	uxtb	r1, r1
+ 244:	e1a03002 	mov	r3, r2
+}
+
+void*
+memset(void *dst, int c, uint n)
+{
+  char *p=dst;
+ 248:	e1a0c000 	mov	ip, r0
+  u32 rc=n;
+
+  while (rc-- > 0) *p++ = c;
+ 24c:	e2533001 	subs	r3, r3, #1
+ 250:	e4cc1001 	strb	r1, [ip], #1
+ 254:	1afffffc 	bne	24c <memset+0x1c>
+ 258:	e0800002 	add	r0, r0, r2
+  return (void *)p;
+}
+ 25c:	e28bd000 	add	sp, fp, #0
+ 260:	e8bd0800 	pop	{fp}
+ 264:	e12fff1e 	bx	lr
+
+00000268 <strchr>:
+
+char*
+strchr(const char *s, char c)
+{
+ 268:	e52db004 	push	{fp}		; (str fp, [sp, #-4]!)
+ 26c:	e28db000 	add	fp, sp, #0
+  for(; *s; s++)
+ 270:	e5d03000 	ldrb	r3, [r0]
+ 274:	e3530000 	cmp	r3, #0
+ 278:	1a000004 	bne	290 <strchr+0x28>
+ 27c:	ea000008 	b	2a4 <strchr+0x3c>
+ 280:	e5d03001 	ldrb	r3, [r0, #1]
+ 284:	e2800001 	add	r0, r0, #1
+ 288:	e3530000 	cmp	r3, #0
+ 28c:	0a000004 	beq	2a4 <strchr+0x3c>
+    if(*s == c)
+ 290:	e1530001 	cmp	r3, r1
+ 294:	1afffff9 	bne	280 <strchr+0x18>
+      return (char*)s;
+  return 0;
+}
+ 298:	e28bd000 	add	sp, fp, #0
+ 29c:	e8bd0800 	pop	{fp}
+ 2a0:	e12fff1e 	bx	lr
+strchr(const char *s, char c)
+{
+  for(; *s; s++)
+    if(*s == c)
+      return (char*)s;
+  return 0;
+ 2a4:	e1a00003 	mov	r0, r3
+ 2a8:	eafffffa 	b	298 <strchr+0x30>
+
+000002ac <gets>:
+}
+
+char*
+gets(char *buf, int max)
+{
+ 2ac:	e92d49f0 	push	{r4, r5, r6, r7, r8, fp, lr}
+ 2b0:	e28db018 	add	fp, sp, #24
+ 2b4:	e24dd00c 	sub	sp, sp, #12
+ 2b8:	e1a08000 	mov	r8, r0
+ 2bc:	e1a07001 	mov	r7, r1
+  int i, cc;
+  char c;
+
+  for(i=0; i+1 < max; ){
+ 2c0:	e1a06000 	mov	r6, r0
+ 2c4:	e3a05000 	mov	r5, #0
+ 2c8:	ea000008 	b	2f0 <gets+0x44>
+    cc = read(0, &c, 1);
+ 2cc:	eb000079 	bl	4b8 <read>
+    if(cc < 1)
+ 2d0:	e3500000 	cmp	r0, #0
+ 2d4:	da00000b 	ble	308 <gets+0x5c>
+      break;
+    buf[i++] = c;
+ 2d8:	e55b301d 	ldrb	r3, [fp, #-29]
+    if(c == '\n' || c == '\r')
+ 2dc:	e1a05004 	mov	r5, r4
+ 2e0:	e353000a 	cmp	r3, #10
+ 2e4:	1353000d 	cmpne	r3, #13
+
+  for(i=0; i+1 < max; ){
+    cc = read(0, &c, 1);
+    if(cc < 1)
+      break;
+    buf[i++] = c;
+ 2e8:	e4c63001 	strb	r3, [r6], #1
+    if(c == '\n' || c == '\r')
+ 2ec:	0a00000a 	beq	31c <gets+0x70>
+{
+  int i, cc;
+  char c;
+
+  for(i=0; i+1 < max; ){
+    cc = read(0, &c, 1);
+ 2f0:	e3a02001 	mov	r2, #1
+gets(char *buf, int max)
+{
+  int i, cc;
+  char c;
+
+  for(i=0; i+1 < max; ){
+ 2f4:	e0854002 	add	r4, r5, r2
+ 2f8:	e1540007 	cmp	r4, r7
+    cc = read(0, &c, 1);
+ 2fc:	e3a00000 	mov	r0, #0
+ 300:	e24b101d 	sub	r1, fp, #29
+gets(char *buf, int max)
+{
+  int i, cc;
+  char c;
+
+  for(i=0; i+1 < max; ){
+ 304:	bafffff0 	blt	2cc <gets+0x20>
+      break;
+    buf[i++] = c;
+    if(c == '\n' || c == '\r')
+      break;
+  }
+  buf[i] = '\0';
+ 308:	e3a03000 	mov	r3, #0
+ 30c:	e7c83005 	strb	r3, [r8, r5]
+  return buf;
+}
+ 310:	e1a00008 	mov	r0, r8
+ 314:	e24bd018 	sub	sp, fp, #24
+ 318:	e8bd89f0 	pop	{r4, r5, r6, r7, r8, fp, pc}
+gets(char *buf, int max)
+{
+  int i, cc;
+  char c;
+
+  for(i=0; i+1 < max; ){
+ 31c:	e1a05004 	mov	r5, r4
+ 320:	eafffff8 	b	308 <gets+0x5c>
+
+00000324 <stat>:
+  return buf;
+}
+
+int
+stat(char *n, struct stat *st)
+{
+ 324:	e92d4830 	push	{r4, r5, fp, lr}
+ 328:	e1a05001 	mov	r5, r1
+ 32c:	e28db00c 	add	fp, sp, #12
+  int fd;
+  int r;
+
+  fd = open(n, O_RDONLY);
+ 330:	e3a01000 	mov	r1, #0
+ 334:	eb0000a0 	bl	5bc <open>
+  if(fd < 0)
+ 338:	e2504000 	subs	r4, r0, #0
+    return -1;
+ 33c:	b3e05000 	mvnlt	r5, #0
+{
+  int fd;
+  int r;
+
+  fd = open(n, O_RDONLY);
+  if(fd < 0)
+ 340:	ba000004 	blt	358 <stat+0x34>
+    return -1;
+  r = fstat(fd, st);
+ 344:	e1a01005 	mov	r1, r5
+ 348:	eb0000c2 	bl	658 <fstat>
+ 34c:	e1a05000 	mov	r5, r0
+  close(fd);
+ 350:	e1a00004 	mov	r0, r4
+ 354:	eb000071 	bl	520 <close>
+  return r;
+}
+ 358:	e1a00005 	mov	r0, r5
+ 35c:	e8bd8830 	pop	{r4, r5, fp, pc}
+
+00000360 <atoi>:
+
+int
+atoi(const char *s)
+{
+ 360:	e52db004 	push	{fp}		; (str fp, [sp, #-4]!)
+ 364:	e28db000 	add	fp, sp, #0
+  int n;
+
+  n = 0;
+  while('0' <= *s && *s <= '9')
+ 368:	e5d03000 	ldrb	r3, [r0]
+ 36c:	e2432030 	sub	r2, r3, #48	; 0x30
+ 370:	e6ef2072 	uxtb	r2, r2
+ 374:	e3520009 	cmp	r2, #9
+int
+atoi(const char *s)
+{
+  int n;
+
+  n = 0;
+ 378:	83a00000 	movhi	r0, #0
+  while('0' <= *s && *s <= '9')
+ 37c:	8a000009 	bhi	3a8 <atoi+0x48>
+ 380:	e1a02000 	mov	r2, r0
+int
+atoi(const char *s)
+{
+  int n;
+
+  n = 0;
+ 384:	e3a00000 	mov	r0, #0
+  while('0' <= *s && *s <= '9')
+    n = n*10 + *s++ - '0';
+ 388:	e0800100 	add	r0, r0, r0, lsl #2
+ 38c:	e0830080 	add	r0, r3, r0, lsl #1
+atoi(const char *s)
+{
+  int n;
+
+  n = 0;
+  while('0' <= *s && *s <= '9')
+ 390:	e5f23001 	ldrb	r3, [r2, #1]!
+    n = n*10 + *s++ - '0';
+ 394:	e2400030 	sub	r0, r0, #48	; 0x30
+atoi(const char *s)
+{
+  int n;
+
+  n = 0;
+  while('0' <= *s && *s <= '9')
+ 398:	e2431030 	sub	r1, r3, #48	; 0x30
+ 39c:	e6ef1071 	uxtb	r1, r1
+ 3a0:	e3510009 	cmp	r1, #9
+ 3a4:	9afffff7 	bls	388 <atoi+0x28>
+    n = n*10 + *s++ - '0';
+  return n;
+}
+ 3a8:	e28bd000 	add	sp, fp, #0
+ 3ac:	e8bd0800 	pop	{fp}
+ 3b0:	e12fff1e 	bx	lr
+
+000003b4 <memmove>:
+{
+  char *dst, *src;
+  
+  dst = vdst;
+  src = vsrc;
+  while(n-- > 0)
+ 3b4:	e3520000 	cmp	r2, #0
+  return n;
+}
+
+void*
+memmove(void *vdst, void *vsrc, int n)
+{
+ 3b8:	e52db004 	push	{fp}		; (str fp, [sp, #-4]!)
+ 3bc:	e28db000 	add	fp, sp, #0
+  char *dst, *src;
+  
+  dst = vdst;
+  src = vsrc;
+  while(n-- > 0)
+ 3c0:	da000005 	ble	3dc <memmove+0x28>
+    n = n*10 + *s++ - '0';
+  return n;
+}
+
+void*
+memmove(void *vdst, void *vsrc, int n)
+ 3c4:	e0802002 	add	r2, r0, r2
+{
+  char *dst, *src;
+  
+  dst = vdst;
+ 3c8:	e1a03000 	mov	r3, r0
+  src = vsrc;
+  while(n-- > 0)
+    *dst++ = *src++;
+ 3cc:	e4d1c001 	ldrb	ip, [r1], #1
+ 3d0:	e4c3c001 	strb	ip, [r3], #1
+{
+  char *dst, *src;
+  
+  dst = vdst;
+  src = vsrc;
+  while(n-- > 0)
+ 3d4:	e1530002 	cmp	r3, r2
+ 3d8:	1afffffb 	bne	3cc <memmove+0x18>
+    *dst++ = *src++;
+  return vdst;
+}
+ 3dc:	e28bd000 	add	sp, fp, #0
+ 3e0:	e8bd0800 	pop	{fp}
+ 3e4:	e12fff1e 	bx	lr
+
+000003e8 <fork>:
+ 3e8:	e92d4000 	push	{lr}
+ 3ec:	e92d0008 	push	{r3}
+ 3f0:	e92d0004 	push	{r2}
+ 3f4:	e92d0002 	push	{r1}
+ 3f8:	e92d0001 	push	{r0}
+ 3fc:	e3a00001 	mov	r0, #1
+ 400:	ef000040 	svc	0x00000040
+ 404:	e8bd0002 	pop	{r1}
+ 408:	e8bd0002 	pop	{r1}
+ 40c:	e8bd0004 	pop	{r2}
+ 410:	e8bd0008 	pop	{r3}
+ 414:	e8bd4000 	pop	{lr}
+ 418:	e12fff1e 	bx	lr
+
+0000041c <exit>:
+ 41c:	e92d4000 	push	{lr}
+ 420:	e92d0008 	push	{r3}
+ 424:	e92d0004 	push	{r2}
+ 428:	e92d0002 	push	{r1}
+ 42c:	e92d0001 	push	{r0}
+ 430:	e3a00002 	mov	r0, #2
+ 434:	ef000040 	svc	0x00000040
+ 438:	e8bd0002 	pop	{r1}
+ 43c:	e8bd0002 	pop	{r1}
+ 440:	e8bd0004 	pop	{r2}
+ 444:	e8bd0008 	pop	{r3}
+ 448:	e8bd4000 	pop	{lr}
+ 44c:	e12fff1e 	bx	lr
+
+00000450 <wait>:
+ 450:	e92d4000 	push	{lr}
+ 454:	e92d0008 	push	{r3}
+ 458:	e92d0004 	push	{r2}
+ 45c:	e92d0002 	push	{r1}
+ 460:	e92d0001 	push	{r0}
+ 464:	e3a00003 	mov	r0, #3
+ 468:	ef000040 	svc	0x00000040
+ 46c:	e8bd0002 	pop	{r1}
+ 470:	e8bd0002 	pop	{r1}
+ 474:	e8bd0004 	pop	{r2}
+ 478:	e8bd0008 	pop	{r3}
+ 47c:	e8bd4000 	pop	{lr}
+ 480:	e12fff1e 	bx	lr
+
+00000484 <pipe>:
+ 484:	e92d4000 	push	{lr}
+ 488:	e92d0008 	push	{r3}
+ 48c:	e92d0004 	push	{r2}
+ 490:	e92d0002 	push	{r1}
+ 494:	e92d0001 	push	{r0}
+ 498:	e3a00004 	mov	r0, #4
+ 49c:	ef000040 	svc	0x00000040
+ 4a0:	e8bd0002 	pop	{r1}
+ 4a4:	e8bd0002 	pop	{r1}
+ 4a8:	e8bd0004 	pop	{r2}
+ 4ac:	e8bd0008 	pop	{r3}
+ 4b0:	e8bd4000 	pop	{lr}
+ 4b4:	e12fff1e 	bx	lr
+
+000004b8 <read>:
+ 4b8:	e92d4000 	push	{lr}
+ 4bc:	e92d0008 	push	{r3}
+ 4c0:	e92d0004 	push	{r2}
+ 4c4:	e92d0002 	push	{r1}
+ 4c8:	e92d0001 	push	{r0}
+ 4cc:	e3a00005 	mov	r0, #5
+ 4d0:	ef000040 	svc	0x00000040
+ 4d4:	e8bd0002 	pop	{r1}
+ 4d8:	e8bd0002 	pop	{r1}
+ 4dc:	e8bd0004 	pop	{r2}
+ 4e0:	e8bd0008 	pop	{r3}
+ 4e4:	e8bd4000 	pop	{lr}
+ 4e8:	e12fff1e 	bx	lr
+
+000004ec <write>:
+ 4ec:	e92d4000 	push	{lr}
+ 4f0:	e92d0008 	push	{r3}
+ 4f4:	e92d0004 	push	{r2}
+ 4f8:	e92d0002 	push	{r1}
+ 4fc:	e92d0001 	push	{r0}
+ 500:	e3a00010 	mov	r0, #16
+ 504:	ef000040 	svc	0x00000040
+ 508:	e8bd0002 	pop	{r1}
+ 50c:	e8bd0002 	pop	{r1}
+ 510:	e8bd0004 	pop	{r2}
+ 514:	e8bd0008 	pop	{r3}
+ 518:	e8bd4000 	pop	{lr}
+ 51c:	e12fff1e 	bx	lr
+
+00000520 <close>:
+ 520:	e92d4000 	push	{lr}
+ 524:	e92d0008 	push	{r3}
+ 528:	e92d0004 	push	{r2}
+ 52c:	e92d0002 	push	{r1}
+ 530:	e92d0001 	push	{r0}
+ 534:	e3a00015 	mov	r0, #21
+ 538:	ef000040 	svc	0x00000040
+ 53c:	e8bd0002 	pop	{r1}
+ 540:	e8bd0002 	pop	{r1}
+ 544:	e8bd0004 	pop	{r2}
+ 548:	e8bd0008 	pop	{r3}
+ 54c:	e8bd4000 	pop	{lr}
+ 550:	e12fff1e 	bx	lr
+
+00000554 <kill>:
+ 554:	e92d4000 	push	{lr}
+ 558:	e92d0008 	push	{r3}
+ 55c:	e92d0004 	push	{r2}
+ 560:	e92d0002 	push	{r1}
+ 564:	e92d0001 	push	{r0}
+ 568:	e3a00006 	mov	r0, #6
+ 56c:	ef000040 	svc	0x00000040
+ 570:	e8bd0002 	pop	{r1}
+ 574:	e8bd0002 	pop	{r1}
+ 578:	e8bd0004 	pop	{r2}
+ 57c:	e8bd0008 	pop	{r3}
+ 580:	e8bd4000 	pop	{lr}
+ 584:	e12fff1e 	bx	lr
+
+00000588 <exec>:
+ 588:	e92d4000 	push	{lr}
+ 58c:	e92d0008 	push	{r3}
+ 590:	e92d0004 	push	{r2}
+ 594:	e92d0002 	push	{r1}
+ 598:	e92d0001 	push	{r0}
+ 59c:	e3a00007 	mov	r0, #7
+ 5a0:	ef000040 	svc	0x00000040
+ 5a4:	e8bd0002 	pop	{r1}
+ 5a8:	e8bd0002 	pop	{r1}
+ 5ac:	e8bd0004 	pop	{r2}
+ 5b0:	e8bd0008 	pop	{r3}
+ 5b4:	e8bd4000 	pop	{lr}
+ 5b8:	e12fff1e 	bx	lr
+
+000005bc <open>:
+ 5bc:	e92d4000 	push	{lr}
+ 5c0:	e92d0008 	push	{r3}
+ 5c4:	e92d0004 	push	{r2}
+ 5c8:	e92d0002 	push	{r1}
+ 5cc:	e92d0001 	push	{r0}
+ 5d0:	e3a0000f 	mov	r0, #15
+ 5d4:	ef000040 	svc	0x00000040
+ 5d8:	e8bd0002 	pop	{r1}
+ 5dc:	e8bd0002 	pop	{r1}
+ 5e0:	e8bd0004 	pop	{r2}
+ 5e4:	e8bd0008 	pop	{r3}
+ 5e8:	e8bd4000 	pop	{lr}
+ 5ec:	e12fff1e 	bx	lr
+
+000005f0 <mknod>:
+ 5f0:	e92d4000 	push	{lr}
+ 5f4:	e92d0008 	push	{r3}
+ 5f8:	e92d0004 	push	{r2}
+ 5fc:	e92d0002 	push	{r1}
+ 600:	e92d0001 	push	{r0}
+ 604:	e3a00011 	mov	r0, #17
+ 608:	ef000040 	svc	0x00000040
+ 60c:	e8bd0002 	pop	{r1}
+ 610:	e8bd0002 	pop	{r1}
+ 614:	e8bd0004 	pop	{r2}
+ 618:	e8bd0008 	pop	{r3}
+ 61c:	e8bd4000 	pop	{lr}
+ 620:	e12fff1e 	bx	lr
+
+00000624 <unlink>:
+ 624:	e92d4000 	push	{lr}
+ 628:	e92d0008 	push	{r3}
+ 62c:	e92d0004 	push	{r2}
+ 630:	e92d0002 	push	{r1}
+ 634:	e92d0001 	push	{r0}
+ 638:	e3a00012 	mov	r0, #18
+ 63c:	ef000040 	svc	0x00000040
+ 640:	e8bd0002 	pop	{r1}
+ 644:	e8bd0002 	pop	{r1}
+ 648:	e8bd0004 	pop	{r2}
+ 64c:	e8bd0008 	pop	{r3}
+ 650:	e8bd4000 	pop	{lr}
+ 654:	e12fff1e 	bx	lr
+
+00000658 <fstat>:
+ 658:	e92d4000 	push	{lr}
+ 65c:	e92d0008 	push	{r3}
+ 660:	e92d0004 	push	{r2}
+ 664:	e92d0002 	push	{r1}
+ 668:	e92d0001 	push	{r0}
+ 66c:	e3a00008 	mov	r0, #8
+ 670:	ef000040 	svc	0x00000040
+ 674:	e8bd0002 	pop	{r1}
+ 678:	e8bd0002 	pop	{r1}
+ 67c:	e8bd0004 	pop	{r2}
+ 680:	e8bd0008 	pop	{r3}
+ 684:	e8bd4000 	pop	{lr}
+ 688:	e12fff1e 	bx	lr
+
+0000068c <link>:
+ 68c:	e92d4000 	push	{lr}
+ 690:	e92d0008 	push	{r3}
+ 694:	e92d0004 	push	{r2}
+ 698:	e92d0002 	push	{r1}
+ 69c:	e92d0001 	push	{r0}
+ 6a0:	e3a00013 	mov	r0, #19
+ 6a4:	ef000040 	svc	0x00000040
+ 6a8:	e8bd0002 	pop	{r1}
+ 6ac:	e8bd0002 	pop	{r1}
+ 6b0:	e8bd0004 	pop	{r2}
+ 6b4:	e8bd0008 	pop	{r3}
+ 6b8:	e8bd4000 	pop	{lr}
+ 6bc:	e12fff1e 	bx	lr
+
+000006c0 <mkdir>:
+ 6c0:	e92d4000 	push	{lr}
+ 6c4:	e92d0008 	push	{r3}
+ 6c8:	e92d0004 	push	{r2}
+ 6cc:	e92d0002 	push	{r1}
+ 6d0:	e92d0001 	push	{r0}
+ 6d4:	e3a00014 	mov	r0, #20
+ 6d8:	ef000040 	svc	0x00000040
+ 6dc:	e8bd0002 	pop	{r1}
+ 6e0:	e8bd0002 	pop	{r1}
+ 6e4:	e8bd0004 	pop	{r2}
+ 6e8:	e8bd0008 	pop	{r3}
+ 6ec:	e8bd4000 	pop	{lr}
+ 6f0:	e12fff1e 	bx	lr
+
+000006f4 <chdir>:
+ 6f4:	e92d4000 	push	{lr}
+ 6f8:	e92d0008 	push	{r3}
+ 6fc:	e92d0004 	push	{r2}
+ 700:	e92d0002 	push	{r1}
+ 704:	e92d0001 	push	{r0}
+ 708:	e3a00009 	mov	r0, #9
+ 70c:	ef000040 	svc	0x00000040
+ 710:	e8bd0002 	pop	{r1}
+ 714:	e8bd0002 	pop	{r1}
+ 718:	e8bd0004 	pop	{r2}
+ 71c:	e8bd0008 	pop	{r3}
+ 720:	e8bd4000 	pop	{lr}
+ 724:	e12fff1e 	bx	lr
+
+00000728 <dup>:
+ 728:	e92d4000 	push	{lr}
+ 72c:	e92d0008 	push	{r3}
+ 730:	e92d0004 	push	{r2}
+ 734:	e92d0002 	push	{r1}
+ 738:	e92d0001 	push	{r0}
+ 73c:	e3a0000a 	mov	r0, #10
+ 740:	ef000040 	svc	0x00000040
+ 744:	e8bd0002 	pop	{r1}
+ 748:	e8bd0002 	pop	{r1}
+ 74c:	e8bd0004 	pop	{r2}
+ 750:	e8bd0008 	pop	{r3}
+ 754:	e8bd4000 	pop	{lr}
+ 758:	e12fff1e 	bx	lr
+
+0000075c <getpid>:
+ 75c:	e92d4000 	push	{lr}
+ 760:	e92d0008 	push	{r3}
+ 764:	e92d0004 	push	{r2}
+ 768:	e92d0002 	push	{r1}
+ 76c:	e92d0001 	push	{r0}
+ 770:	e3a0000b 	mov	r0, #11
+ 774:	ef000040 	svc	0x00000040
+ 778:	e8bd0002 	pop	{r1}
+ 77c:	e8bd0002 	pop	{r1}
+ 780:	e8bd0004 	pop	{r2}
+ 784:	e8bd0008 	pop	{r3}
+ 788:	e8bd4000 	pop	{lr}
+ 78c:	e12fff1e 	bx	lr
+
+00000790 <sbrk>:
+ 790:	e92d4000 	push	{lr}
+ 794:	e92d0008 	push	{r3}
+ 798:	e92d0004 	push	{r2}
+ 79c:	e92d0002 	push	{r1}
+ 7a0:	e92d0001 	push	{r0}
+ 7a4:	e3a0000c 	mov	r0, #12
+ 7a8:	ef000040 	svc	0x00000040
+ 7ac:	e8bd0002 	pop	{r1}
+ 7b0:	e8bd0002 	pop	{r1}
+ 7b4:	e8bd0004 	pop	{r2}
+ 7b8:	e8bd0008 	pop	{r3}
+ 7bc:	e8bd4000 	pop	{lr}
+ 7c0:	e12fff1e 	bx	lr
+
+000007c4 <sleep>:
+ 7c4:	e92d4000 	push	{lr}
+ 7c8:	e92d0008 	push	{r3}
+ 7cc:	e92d0004 	push	{r2}
+ 7d0:	e92d0002 	push	{r1}
+ 7d4:	e92d0001 	push	{r0}
+ 7d8:	e3a0000d 	mov	r0, #13
+ 7dc:	ef000040 	svc	0x00000040
+ 7e0:	e8bd0002 	pop	{r1}
+ 7e4:	e8bd0002 	pop	{r1}
+ 7e8:	e8bd0004 	pop	{r2}
+ 7ec:	e8bd0008 	pop	{r3}
+ 7f0:	e8bd4000 	pop	{lr}
+ 7f4:	e12fff1e 	bx	lr
+
+000007f8 <uptime>:
+ 7f8:	e92d4000 	push	{lr}
+ 7fc:	e92d0008 	push	{r3}
+ 800:	e92d0004 	push	{r2}
+ 804:	e92d0002 	push	{r1}
+ 808:	e92d0001 	push	{r0}
+ 80c:	e3a0000e 	mov	r0, #14
+ 810:	ef000040 	svc	0x00000040
+ 814:	e8bd0002 	pop	{r1}
+ 818:	e8bd0002 	pop	{r1}
+ 81c:	e8bd0004 	pop	{r2}
+ 820:	e8bd0008 	pop	{r3}
+ 824:	e8bd4000 	pop	{lr}
+ 828:	e12fff1e 	bx	lr
+
+0000082c <putc>:
+#include "stat.h"
+#include "user.h"
+
+static void
+putc(int fd, char c)
+{
+ 82c:	e92d4800 	push	{fp, lr}
+ 830:	e28db004 	add	fp, sp, #4
+ 834:	e24b3004 	sub	r3, fp, #4
+ 838:	e24dd008 	sub	sp, sp, #8
+  write(fd, &c, 1);
+ 83c:	e3a02001 	mov	r2, #1
+#include "stat.h"
+#include "user.h"
+
+static void
+putc(int fd, char c)
+{
+ 840:	e5631001 	strb	r1, [r3, #-1]!
+  write(fd, &c, 1);
+ 844:	e1a01003 	mov	r1, r3
+ 848:	ebffff27 	bl	4ec <write>
+}
+ 84c:	e24bd004 	sub	sp, fp, #4
+ 850:	e8bd8800 	pop	{fp, pc}
+
+00000854 <printint>:
+    return q;
+}
+
+static void
+printint(int fd, int xx, int base, int sgn)
+{
+ 854:	e92d4ff0 	push	{r4, r5, r6, r7, r8, r9, sl, fp, lr}
+ 858:	e1a04000 	mov	r4, r0
+  char buf[16];
+  int i, neg;
+  uint x, y, b;
+
+  neg = 0;
+  if(sgn && xx < 0){
+ 85c:	e1a00fa1 	lsr	r0, r1, #31
+ 860:	e3530000 	cmp	r3, #0
+ 864:	03a03000 	moveq	r3, #0
+ 868:	12003001 	andne	r3, r0, #1
+    return q;
+}
+
+static void
+printint(int fd, int xx, int base, int sgn)
+{
+ 86c:	e28db020 	add	fp, sp, #32
+  char buf[16];
+  int i, neg;
+  uint x, y, b;
+
+  neg = 0;
+  if(sgn && xx < 0){
+ 870:	e3530000 	cmp	r3, #0
+    return q;
+}
+
+static void
+printint(int fd, int xx, int base, int sgn)
+{
+ 874:	e24dd014 	sub	sp, sp, #20
+ 878:	e59f909c 	ldr	r9, [pc, #156]	; 91c <printint+0xc8>
+  uint x, y, b;
+
+  neg = 0;
+  if(sgn && xx < 0){
+    neg = 1;
+    x = -xx;
+ 87c:	12611000 	rsbne	r1, r1, #0
+  int i, neg;
+  uint x, y, b;
+
+  neg = 0;
+  if(sgn && xx < 0){
+    neg = 1;
+ 880:	13a03001 	movne	r3, #1
+  } else {
+    x = xx;
+  }
+
+  b = base;
+  i = 0;
+ 884:	e3a0a000 	mov	sl, #0
+ 888:	e24b6034 	sub	r6, fp, #52	; 0x34
+    for(i=31;i>=0;i--){
+        r = r << 1;
+        r = r | ((n >> i) & 1);
+        if(r >= d) {
+            r = r - d;
+            q = q | (1 << i);
+ 88c:	e3a08001 	mov	r8, #1
+  write(fd, &c, 1);
+}
+
+u32 div(u32 n, u32 d)  // long division
+{
+    u32 q=0, r=0;
+ 890:	e3a07000 	mov	r7, #0
+    int i;
+
+    for(i=31;i>=0;i--){
+ 894:	e3a0001f 	mov	r0, #31
+  write(fd, &c, 1);
+}
+
+u32 div(u32 n, u32 d)  // long division
+{
+    u32 q=0, r=0;
+ 898:	e1a0c007 	mov	ip, r7
+    int i;
+
+    for(i=31;i>=0;i--){
+        r = r << 1;
+        r = r | ((n >> i) & 1);
+ 89c:	e1a0e031 	lsr	lr, r1, r0
+ 8a0:	e20ee001 	and	lr, lr, #1
+ 8a4:	e18ec08c 	orr	ip, lr, ip, lsl #1
+        if(r >= d) {
+ 8a8:	e152000c 	cmp	r2, ip
+            r = r - d;
+            q = q | (1 << i);
+ 8ac:	91877018 	orrls	r7, r7, r8, lsl r0
+
+    for(i=31;i>=0;i--){
+        r = r << 1;
+        r = r | ((n >> i) & 1);
+        if(r >= d) {
+            r = r - d;
+ 8b0:	9062c00c 	rsbls	ip, r2, ip
+u32 div(u32 n, u32 d)  // long division
+{
+    u32 q=0, r=0;
+    int i;
+
+    for(i=31;i>=0;i--){
+ 8b4:	e2500001 	subs	r0, r0, #1
+ 8b8:	2afffff7 	bcs	89c <printint+0x48>
+
+  b = base;
+  i = 0;
+  do{
+    y = div(x, b);
+    buf[i++] = digits[x - y * b];
+ 8bc:	e0000792 	mul	r0, r2, r7
+  }while((x = y) != 0);
+ 8c0:	e3570000 	cmp	r7, #0
+
+  b = base;
+  i = 0;
+  do{
+    y = div(x, b);
+    buf[i++] = digits[x - y * b];
+ 8c4:	e0601001 	rsb	r1, r0, r1
+ 8c8:	e28a5001 	add	r5, sl, #1
+ 8cc:	e7d91001 	ldrb	r1, [r9, r1]
+ 8d0:	e7c6100a 	strb	r1, [r6, sl]
+  }while((x = y) != 0);
+ 8d4:	11a01007 	movne	r1, r7
+
+  b = base;
+  i = 0;
+  do{
+    y = div(x, b);
+    buf[i++] = digits[x - y * b];
+ 8d8:	11a0a005 	movne	sl, r5
+ 8dc:	1affffeb 	bne	890 <printint+0x3c>
+  }while((x = y) != 0);
+  if(neg)
+ 8e0:	e3530000 	cmp	r3, #0
+    buf[i++] = '-';
+ 8e4:	124b2024 	subne	r2, fp, #36	; 0x24
+ 8e8:	10823005 	addne	r3, r2, r5
+ 8ec:	128a5002 	addne	r5, sl, #2
+
+  while(--i >= 0)
+ 8f0:	e2455001 	sub	r5, r5, #1
+  do{
+    y = div(x, b);
+    buf[i++] = digits[x - y * b];
+  }while((x = y) != 0);
+  if(neg)
+    buf[i++] = '-';
+ 8f4:	13a0202d 	movne	r2, #45	; 0x2d
+ 8f8:	15432010 	strbne	r2, [r3, #-16]
+
+  while(--i >= 0)
+    putc(fd, buf[i]);
+ 8fc:	e7d61005 	ldrb	r1, [r6, r5]
+ 900:	e1a00004 	mov	r0, r4
+    buf[i++] = digits[x - y * b];
+  }while((x = y) != 0);
+  if(neg)
+    buf[i++] = '-';
+
+  while(--i >= 0)
+ 904:	e2455001 	sub	r5, r5, #1
+    putc(fd, buf[i]);
+ 908:	ebffffc7 	bl	82c <putc>
+    buf[i++] = digits[x - y * b];
+  }while((x = y) != 0);
+  if(neg)
+    buf[i++] = '-';
+
+  while(--i >= 0)
+ 90c:	e3750001 	cmn	r5, #1
+ 910:	1afffff9 	bne	8fc <printint+0xa8>
+    putc(fd, buf[i]);
+}
+ 914:	e24bd020 	sub	sp, fp, #32
+ 918:	e8bd8ff0 	pop	{r4, r5, r6, r7, r8, r9, sl, fp, pc}
+ 91c:	00000c8c 	.word	0x00000c8c
+
+00000920 <div>:
+  write(fd, &c, 1);
+}
+
+u32 div(u32 n, u32 d)  // long division
+{
+    u32 q=0, r=0;
+ 920:	e3a03000 	mov	r3, #0
+{
+  write(fd, &c, 1);
+}
+
+u32 div(u32 n, u32 d)  // long division
+{
+ 924:	e92d0830 	push	{r4, r5, fp}
+ 928:	e1a02000 	mov	r2, r0
+ 92c:	e28db008 	add	fp, sp, #8
+    u32 q=0, r=0;
+    int i;
+
+    for(i=31;i>=0;i--){
+ 930:	e3a0c01f 	mov	ip, #31
+  write(fd, &c, 1);
+}
+
+u32 div(u32 n, u32 d)  // long division
+{
+    u32 q=0, r=0;
+ 934:	e1a00003 	mov	r0, r3
+    for(i=31;i>=0;i--){
+        r = r << 1;
+        r = r | ((n >> i) & 1);
+        if(r >= d) {
+            r = r - d;
+            q = q | (1 << i);
+ 938:	e3a05001 	mov	r5, #1
+    u32 q=0, r=0;
+    int i;
+
+    for(i=31;i>=0;i--){
+        r = r << 1;
+        r = r | ((n >> i) & 1);
+ 93c:	e1a04c32 	lsr	r4, r2, ip
+ 940:	e2044001 	and	r4, r4, #1
+ 944:	e1843083 	orr	r3, r4, r3, lsl #1
+        if(r >= d) {
+ 948:	e1530001 	cmp	r3, r1
+            r = r - d;
+            q = q | (1 << i);
+ 94c:	21800c15 	orrcs	r0, r0, r5, lsl ip
+
+    for(i=31;i>=0;i--){
+        r = r << 1;
+        r = r | ((n >> i) & 1);
+        if(r >= d) {
+            r = r - d;
+ 950:	20613003 	rsbcs	r3, r1, r3
+u32 div(u32 n, u32 d)  // long division
+{
+    u32 q=0, r=0;
+    int i;
+
+    for(i=31;i>=0;i--){
+ 954:	e25cc001 	subs	ip, ip, #1
+ 958:	2afffff7 	bcs	93c <div+0x1c>
+            r = r - d;
+            q = q | (1 << i);
+        }
+    }
+    return q;
+}
+ 95c:	e24bd008 	sub	sp, fp, #8
+ 960:	e8bd0830 	pop	{r4, r5, fp}
+ 964:	e12fff1e 	bx	lr
+
+00000968 <printf>:
+}
+
+// Print to the given fd. Only understands %d, %x, %p, %s.
+void
+printf(int fd, char *fmt, ...)
+{
+ 968:	e92d000e 	push	{r1, r2, r3}
+ 96c:	e92d4ff0 	push	{r4, r5, r6, r7, r8, r9, sl, fp, lr}
+ 970:	e28db020 	add	fp, sp, #32
+ 974:	e1a05000 	mov	r5, r0
+  int c, i, state;
+  uint *ap;
+
+  state = 0;
+  ap = (uint*)(void*)&fmt + 1;
+  for(i = 0; fmt[i]; i++){
+ 978:	e59b4004 	ldr	r4, [fp, #4]
+ 97c:	e5d48000 	ldrb	r8, [r4]
+ 980:	e3580000 	cmp	r8, #0
+ 984:	0a000027 	beq	a28 <printf+0xc0>
+        ap++;
+      } else if(c == 's'){
+        s = (char*)*ap;
+        ap++;
+        if(s == 0)
+          s = "(null)";
+ 988:	e59f712c 	ldr	r7, [pc, #300]	; abc <printf+0x154>
+  char *s;
+  int c, i, state;
+  uint *ap;
+
+  state = 0;
+  ap = (uint*)(void*)&fmt + 1;
+ 98c:	e28b6008 	add	r6, fp, #8
+{
+  char *s;
+  int c, i, state;
+  uint *ap;
+
+  state = 0;
+ 990:	e3a0a000 	mov	sl, #0
+ 994:	ea000008 	b	9bc <printf+0x54>
+  ap = (uint*)(void*)&fmt + 1;
+  for(i = 0; fmt[i]; i++){
+    c = fmt[i] & 0xff;
+    if(state == 0){
+      if(c == '%'){
+ 998:	e3580025 	cmp	r8, #37	; 0x25
+        state = '%';
+ 99c:	01a0a008 	moveq	sl, r8
+  state = 0;
+  ap = (uint*)(void*)&fmt + 1;
+  for(i = 0; fmt[i]; i++){
+    c = fmt[i] & 0xff;
+    if(state == 0){
+      if(c == '%'){
+ 9a0:	0a000002 	beq	9b0 <printf+0x48>
+        state = '%';
+      } else {
+        putc(fd, c);
+ 9a4:	e1a00005 	mov	r0, r5
+ 9a8:	e1a01008 	mov	r1, r8
+ 9ac:	ebffff9e 	bl	82c <putc>
+  int c, i, state;
+  uint *ap;
+
+  state = 0;
+  ap = (uint*)(void*)&fmt + 1;
+  for(i = 0; fmt[i]; i++){
+ 9b0:	e5f48001 	ldrb	r8, [r4, #1]!
+ 9b4:	e3580000 	cmp	r8, #0
+ 9b8:	0a00001a 	beq	a28 <printf+0xc0>
+    c = fmt[i] & 0xff;
+    if(state == 0){
+ 9bc:	e35a0000 	cmp	sl, #0
+ 9c0:	0afffff4 	beq	998 <printf+0x30>
+      if(c == '%'){
+        state = '%';
+      } else {
+        putc(fd, c);
+      }
+    } else if(state == '%'){
+ 9c4:	e35a0025 	cmp	sl, #37	; 0x25
+ 9c8:	1afffff8 	bne	9b0 <printf+0x48>
+      if(c == 'd'){
+ 9cc:	e3580064 	cmp	r8, #100	; 0x64
+ 9d0:	0a00002c 	beq	a88 <printf+0x120>
+        printint(fd, *ap, 10, 1);
+        ap++;
+      } else if(c == 'x' || c == 'p'){
+ 9d4:	e3580078 	cmp	r8, #120	; 0x78
+ 9d8:	13580070 	cmpne	r8, #112	; 0x70
+ 9dc:	13a09000 	movne	r9, #0
+ 9e0:	03a09001 	moveq	r9, #1
+ 9e4:	0a000013 	beq	a38 <printf+0xd0>
+        printint(fd, *ap, 16, 0);
+        ap++;
+      } else if(c == 's'){
+ 9e8:	e3580073 	cmp	r8, #115	; 0x73
+ 9ec:	0a000018 	beq	a54 <printf+0xec>
+          s = "(null)";
+        while(*s != 0){
+          putc(fd, *s);
+          s++;
+        }
+      } else if(c == 'c'){
+ 9f0:	e3580063 	cmp	r8, #99	; 0x63
+ 9f4:	0a00002a 	beq	aa4 <printf+0x13c>
+        putc(fd, *ap);
+        ap++;
+      } else if(c == '%'){
+ 9f8:	e3580025 	cmp	r8, #37	; 0x25
+        putc(fd, c);
+ 9fc:	e1a0100a 	mov	r1, sl
+ a00:	e1a00005 	mov	r0, r5
+          s++;
+        }
+      } else if(c == 'c'){
+        putc(fd, *ap);
+        ap++;
+      } else if(c == '%'){
+ a04:	0a000002 	beq	a14 <printf+0xac>
+        putc(fd, c);
+      } else {
+        // Unknown % sequence.  Print it to draw attention.
+        putc(fd, '%');
+ a08:	ebffff87 	bl	82c <putc>
+        putc(fd, c);
+ a0c:	e1a00005 	mov	r0, r5
+ a10:	e1a01008 	mov	r1, r8
+ a14:	ebffff84 	bl	82c <putc>
+  int c, i, state;
+  uint *ap;
+
+  state = 0;
+  ap = (uint*)(void*)&fmt + 1;
+  for(i = 0; fmt[i]; i++){
+ a18:	e5f48001 	ldrb	r8, [r4, #1]!
+      } else {
+        // Unknown % sequence.  Print it to draw attention.
+        putc(fd, '%');
+        putc(fd, c);
+      }
+      state = 0;
+ a1c:	e1a0a009 	mov	sl, r9
+  int c, i, state;
+  uint *ap;
+
+  state = 0;
+  ap = (uint*)(void*)&fmt + 1;
+  for(i = 0; fmt[i]; i++){
+ a20:	e3580000 	cmp	r8, #0
+ a24:	1affffe4 	bne	9bc <printf+0x54>
+        putc(fd, c);
+      }
+      state = 0;
+    }
+  }
+}
+ a28:	e24bd020 	sub	sp, fp, #32
+ a2c:	e8bd4ff0 	pop	{r4, r5, r6, r7, r8, r9, sl, fp, lr}
+ a30:	e28dd00c 	add	sp, sp, #12
+ a34:	e12fff1e 	bx	lr
+    } else if(state == '%'){
+      if(c == 'd'){
+        printint(fd, *ap, 10, 1);
+        ap++;
+      } else if(c == 'x' || c == 'p'){
+        printint(fd, *ap, 16, 0);
+ a38:	e1a00005 	mov	r0, r5
+ a3c:	e4961004 	ldr	r1, [r6], #4
+ a40:	e3a02010 	mov	r2, #16
+ a44:	e3a03000 	mov	r3, #0
+ a48:	ebffff81 	bl	854 <printint>
+      } else {
+        // Unknown % sequence.  Print it to draw attention.
+        putc(fd, '%');
+        putc(fd, c);
+      }
+      state = 0;
+ a4c:	e3a0a000 	mov	sl, #0
+ a50:	eaffffd6 	b	9b0 <printf+0x48>
+        ap++;
+      } else if(c == 'x' || c == 'p'){
+        printint(fd, *ap, 16, 0);
+        ap++;
+      } else if(c == 's'){
+        s = (char*)*ap;
+ a54:	e4968004 	ldr	r8, [r6], #4
+        ap++;
+        if(s == 0)
+          s = "(null)";
+ a58:	e3580000 	cmp	r8, #0
+ a5c:	01a08007 	moveq	r8, r7
+        while(*s != 0){
+ a60:	e5d81000 	ldrb	r1, [r8]
+ a64:	e3510000 	cmp	r1, #0
+ a68:	0a000004 	beq	a80 <printf+0x118>
+          putc(fd, *s);
+ a6c:	e1a00005 	mov	r0, r5
+ a70:	ebffff6d 	bl	82c <putc>
+      } else if(c == 's'){
+        s = (char*)*ap;
+        ap++;
+        if(s == 0)
+          s = "(null)";
+        while(*s != 0){
+ a74:	e5f81001 	ldrb	r1, [r8, #1]!
+ a78:	e3510000 	cmp	r1, #0
+ a7c:	1afffffa 	bne	a6c <printf+0x104>
+      } else {
+        // Unknown % sequence.  Print it to draw attention.
+        putc(fd, '%');
+        putc(fd, c);
+      }
+      state = 0;
+ a80:	e1a0a001 	mov	sl, r1
+ a84:	eaffffc9 	b	9b0 <printf+0x48>
+      } else {
+        putc(fd, c);
+      }
+    } else if(state == '%'){
+      if(c == 'd'){
+        printint(fd, *ap, 10, 1);
+ a88:	e1a00005 	mov	r0, r5
+ a8c:	e4961004 	ldr	r1, [r6], #4
+ a90:	e3a0200a 	mov	r2, #10
+ a94:	e3a03001 	mov	r3, #1
+ a98:	ebffff6d 	bl	854 <printint>
+      } else {
+        // Unknown % sequence.  Print it to draw attention.
+        putc(fd, '%');
+        putc(fd, c);
+      }
+      state = 0;
+ a9c:	e3a0a000 	mov	sl, #0
+ aa0:	eaffffc2 	b	9b0 <printf+0x48>
+        while(*s != 0){
+          putc(fd, *s);
+          s++;
+        }
+      } else if(c == 'c'){
+        putc(fd, *ap);
+ aa4:	e4961004 	ldr	r1, [r6], #4
+ aa8:	e1a00005 	mov	r0, r5
+      } else {
+        // Unknown % sequence.  Print it to draw attention.
+        putc(fd, '%');
+        putc(fd, c);
+      }
+      state = 0;
+ aac:	e1a0a009 	mov	sl, r9
+        while(*s != 0){
+          putc(fd, *s);
+          s++;
+        }
+      } else if(c == 'c'){
+        putc(fd, *ap);
+ ab0:	e6ef1071 	uxtb	r1, r1
+ ab4:	ebffff5c 	bl	82c <putc>
+ ab8:	eaffffbc 	b	9b0 <printf+0x48>
+ abc:	00000ca0 	.word	0x00000ca0
+
+00000ac0 <free>:
+free(void *ap)
+{
+  Header *bp, *p;
+
+  bp = (Header*)ap - 1;
+  for(p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr)
+ ac0:	e59f3098 	ldr	r3, [pc, #152]	; b60 <free+0xa0>
+static Header base;
+static Header *freep;
+
+void
+free(void *ap)
+{
+ ac4:	e92d0830 	push	{r4, r5, fp}
+  Header *bp, *p;
+
+  bp = (Header*)ap - 1;
+ ac8:	e240c008 	sub	ip, r0, #8
+  for(p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr)
+ acc:	e5932000 	ldr	r2, [r3]
+static Header base;
+static Header *freep;
+
+void
+free(void *ap)
+{
+ ad0:	e28db008 	add	fp, sp, #8
+  Header *bp, *p;
+
+  bp = (Header*)ap - 1;
+  for(p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr)
+ ad4:	e152000c 	cmp	r2, ip
+ ad8:	e5921000 	ldr	r1, [r2]
+ adc:	2a000001 	bcs	ae8 <free+0x28>
+ ae0:	e15c0001 	cmp	ip, r1
+ ae4:	3a000007 	bcc	b08 <free+0x48>
+    if(p >= p->s.ptr && (bp > p || bp < p->s.ptr))
+ ae8:	e1520001 	cmp	r2, r1
+ aec:	3a000003 	bcc	b00 <free+0x40>
+ af0:	e152000c 	cmp	r2, ip
+ af4:	3a000003 	bcc	b08 <free+0x48>
+ af8:	e15c0001 	cmp	ip, r1
+ afc:	3a000001 	bcc	b08 <free+0x48>
+static Header base;
+static Header *freep;
+
+void
+free(void *ap)
+{
+ b00:	e1a02001 	mov	r2, r1
+ b04:	eafffff2 	b	ad4 <free+0x14>
+
+  bp = (Header*)ap - 1;
+  for(p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr)
+    if(p >= p->s.ptr && (bp > p || bp < p->s.ptr))
+      break;
+  if(bp + bp->s.size == p->s.ptr){
+ b08:	e5104004 	ldr	r4, [r0, #-4]
+  if(p + p->s.size == bp){
+    p->s.size += bp->s.size;
+    p->s.ptr = bp->s.ptr;
+  } else
+    p->s.ptr = bp;
+  freep = p;
+ b0c:	e5832000 	str	r2, [r3]
+
+  bp = (Header*)ap - 1;
+  for(p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr)
+    if(p >= p->s.ptr && (bp > p || bp < p->s.ptr))
+      break;
+  if(bp + bp->s.size == p->s.ptr){
+ b10:	e08c5184 	add	r5, ip, r4, lsl #3
+ b14:	e1550001 	cmp	r5, r1
+    bp->s.size += p->s.ptr->s.size;
+ b18:	05911004 	ldreq	r1, [r1, #4]
+ b1c:	00814004 	addeq	r4, r1, r4
+ b20:	05004004 	streq	r4, [r0, #-4]
+    bp->s.ptr = p->s.ptr->s.ptr;
+ b24:	05921000 	ldreq	r1, [r2]
+ b28:	05911000 	ldreq	r1, [r1]
+  } else
+    bp->s.ptr = p->s.ptr;
+ b2c:	e5001008 	str	r1, [r0, #-8]
+  if(p + p->s.size == bp){
+ b30:	e5921004 	ldr	r1, [r2, #4]
+ b34:	e0824181 	add	r4, r2, r1, lsl #3
+ b38:	e15c0004 	cmp	ip, r4
+    p->s.size += bp->s.size;
+    p->s.ptr = bp->s.ptr;
+  } else
+    p->s.ptr = bp;
+ b3c:	1582c000 	strne	ip, [r2]
+    bp->s.size += p->s.ptr->s.size;
+    bp->s.ptr = p->s.ptr->s.ptr;
+  } else
+    bp->s.ptr = p->s.ptr;
+  if(p + p->s.size == bp){
+    p->s.size += bp->s.size;
+ b40:	0510c004 	ldreq	ip, [r0, #-4]
+ b44:	008c1001 	addeq	r1, ip, r1
+ b48:	05821004 	streq	r1, [r2, #4]
+    p->s.ptr = bp->s.ptr;
+ b4c:	05101008 	ldreq	r1, [r0, #-8]
+ b50:	05821000 	streq	r1, [r2]
+  } else
+    p->s.ptr = bp;
+  freep = p;
+}
+ b54:	e24bd008 	sub	sp, fp, #8
+ b58:	e8bd0830 	pop	{r4, r5, fp}
+ b5c:	e12fff1e 	bx	lr
+ b60:	00000ca8 	.word	0x00000ca8
+
+00000b64 <malloc>:
+  return freep;
+}
+
+void*
+malloc(uint nbytes)
+{
+ b64:	e92d49f8 	push	{r3, r4, r5, r6, r7, r8, fp, lr}
+  Header *p, *prevp;
+  uint nunits;
+
+  nunits = (nbytes + sizeof(Header) - 1)/sizeof(Header) + 1;
+ b68:	e2804007 	add	r4, r0, #7
+  if((prevp = freep) == 0){
+ b6c:	e59f50d4 	ldr	r5, [pc, #212]	; c48 <malloc+0xe4>
+malloc(uint nbytes)
+{
+  Header *p, *prevp;
+  uint nunits;
+
+  nunits = (nbytes + sizeof(Header) - 1)/sizeof(Header) + 1;
+ b70:	e1a041a4 	lsr	r4, r4, #3
+  return freep;
+}
+
+void*
+malloc(uint nbytes)
+{
+ b74:	e28db01c 	add	fp, sp, #28
+  Header *p, *prevp;
+  uint nunits;
+
+  nunits = (nbytes + sizeof(Header) - 1)/sizeof(Header) + 1;
+  if((prevp = freep) == 0){
+ b78:	e5953000 	ldr	r3, [r5]
+malloc(uint nbytes)
+{
+  Header *p, *prevp;
+  uint nunits;
+
+  nunits = (nbytes + sizeof(Header) - 1)/sizeof(Header) + 1;
+ b7c:	e2844001 	add	r4, r4, #1
+  if((prevp = freep) == 0){
+ b80:	e3530000 	cmp	r3, #0
+ b84:	0a00002b 	beq	c38 <malloc+0xd4>
+ b88:	e5930000 	ldr	r0, [r3]
+ b8c:	e5902004 	ldr	r2, [r0, #4]
+    base.s.ptr = freep = prevp = &base;
+    base.s.size = 0;
+  }
+  for(p = prevp->s.ptr; ; prevp = p, p = p->s.ptr){
+    if(p->s.size >= nunits){
+ b90:	e1520004 	cmp	r2, r4
+ b94:	2a00001b 	bcs	c08 <malloc+0xa4>
+morecore(uint nu)
+{
+  char *p;
+  Header *hp;
+
+  if(nu < 4096)
+ b98:	e59f80ac 	ldr	r8, [pc, #172]	; c4c <malloc+0xe8>
+        p->s.size -= nunits;
+        p += p->s.size;
+        p->s.size = nunits;
+      }
+      freep = prevp;
+      return (void*)(p + 1);
+ b9c:	e1a07184 	lsl	r7, r4, #3
+ ba0:	ea000003 	b	bb4 <malloc+0x50>
+  nunits = (nbytes + sizeof(Header) - 1)/sizeof(Header) + 1;
+  if((prevp = freep) == 0){
+    base.s.ptr = freep = prevp = &base;
+    base.s.size = 0;
+  }
+  for(p = prevp->s.ptr; ; prevp = p, p = p->s.ptr){
+ ba4:	e5930000 	ldr	r0, [r3]
+    if(p->s.size >= nunits){
+ ba8:	e5902004 	ldr	r2, [r0, #4]
+ bac:	e1540002 	cmp	r4, r2
+ bb0:	9a000014 	bls	c08 <malloc+0xa4>
+        p->s.size = nunits;
+      }
+      freep = prevp;
+      return (void*)(p + 1);
+    }
+    if(p == freep)
+ bb4:	e5952000 	ldr	r2, [r5]
+ bb8:	e1a03000 	mov	r3, r0
+ bbc:	e1500002 	cmp	r0, r2
+ bc0:	1afffff7 	bne	ba4 <malloc+0x40>
+morecore(uint nu)
+{
+  char *p;
+  Header *hp;
+
+  if(nu < 4096)
+ bc4:	e1540008 	cmp	r4, r8
+    nu = 4096;
+  p = sbrk(nu * sizeof(Header));
+ bc8:	81a00007 	movhi	r0, r7
+ bcc:	93a00902 	movls	r0, #32768	; 0x8000
+morecore(uint nu)
+{
+  char *p;
+  Header *hp;
+
+  if(nu < 4096)
+ bd0:	81a06004 	movhi	r6, r4
+ bd4:	93a06a01 	movls	r6, #4096	; 0x1000
+    nu = 4096;
+  p = sbrk(nu * sizeof(Header));
+ bd8:	ebfffeec 	bl	790 <sbrk>
+ bdc:	e1a03000 	mov	r3, r0
+  if(p == (char*)-1)
+ be0:	e3730001 	cmn	r3, #1
+    return 0;
+  hp = (Header*)p;
+  hp->s.size = nu;
+  free((void*)(hp + 1));
+ be4:	e2800008 	add	r0, r0, #8
+  Header *hp;
+
+  if(nu < 4096)
+    nu = 4096;
+  p = sbrk(nu * sizeof(Header));
+  if(p == (char*)-1)
+ be8:	0a000010 	beq	c30 <malloc+0xcc>
+    return 0;
+  hp = (Header*)p;
+  hp->s.size = nu;
+ bec:	e5836004 	str	r6, [r3, #4]
+  free((void*)(hp + 1));
+ bf0:	ebffffb2 	bl	ac0 <free>
+  return freep;
+ bf4:	e5953000 	ldr	r3, [r5]
+      }
+      freep = prevp;
+      return (void*)(p + 1);
+    }
+    if(p == freep)
+      if((p = morecore(nunits)) == 0)
+ bf8:	e3530000 	cmp	r3, #0
+ bfc:	1affffe8 	bne	ba4 <malloc+0x40>
+        return 0;
+ c00:	e1a00003 	mov	r0, r3
+  }
+}
+ c04:	e8bd89f8 	pop	{r3, r4, r5, r6, r7, r8, fp, pc}
+    base.s.ptr = freep = prevp = &base;
+    base.s.size = 0;
+  }
+  for(p = prevp->s.ptr; ; prevp = p, p = p->s.ptr){
+    if(p->s.size >= nunits){
+      if(p->s.size == nunits)
+ c08:	e1540002 	cmp	r4, r2
+        prevp->s.ptr = p->s.ptr;
+      else {
+        p->s.size -= nunits;
+ c0c:	10642002 	rsbne	r2, r4, r2
+ c10:	15802004 	strne	r2, [r0, #4]
+    base.s.size = 0;
+  }
+  for(p = prevp->s.ptr; ; prevp = p, p = p->s.ptr){
+    if(p->s.size >= nunits){
+      if(p->s.size == nunits)
+        prevp->s.ptr = p->s.ptr;
+ c14:	05902000 	ldreq	r2, [r0]
+      else {
+        p->s.size -= nunits;
+        p += p->s.size;
+ c18:	10800182 	addne	r0, r0, r2, lsl #3
+    base.s.size = 0;
+  }
+  for(p = prevp->s.ptr; ; prevp = p, p = p->s.ptr){
+    if(p->s.size >= nunits){
+      if(p->s.size == nunits)
+        prevp->s.ptr = p->s.ptr;
+ c1c:	05832000 	streq	r2, [r3]
+      else {
+        p->s.size -= nunits;
+        p += p->s.size;
+        p->s.size = nunits;
+ c20:	15804004 	strne	r4, [r0, #4]
+      }
+      freep = prevp;
+ c24:	e5853000 	str	r3, [r5]
+      return (void*)(p + 1);
+ c28:	e2800008 	add	r0, r0, #8
+ c2c:	e8bd89f8 	pop	{r3, r4, r5, r6, r7, r8, fp, pc}
+    }
+    if(p == freep)
+      if((p = morecore(nunits)) == 0)
+        return 0;
+ c30:	e3a00000 	mov	r0, #0
+ c34:	e8bd89f8 	pop	{r3, r4, r5, r6, r7, r8, fp, pc}
+  Header *p, *prevp;
+  uint nunits;
+
+  nunits = (nbytes + sizeof(Header) - 1)/sizeof(Header) + 1;
+  if((prevp = freep) == 0){
+    base.s.ptr = freep = prevp = &base;
+ c38:	e2850004 	add	r0, r5, #4
+ c3c:	e5850000 	str	r0, [r5]
+    base.s.size = 0;
+ c40:	e9850009 	stmib	r5, {r0, r3}
+ c44:	eaffffd3 	b	b98 <malloc+0x34>
+ c48:	00000ca8 	.word	0x00000ca8
+ c4c:	00000fff 	.word	0x00000fff