1130 lines
38 KiB
NASM
1130 lines
38 KiB
NASM
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_hello: file format elf32-i386
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Disassembly of section .text:
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00000000 <main>:
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#include "types.h"
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#include "user.h"
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int main(int argc, char *argv[]) {
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0: 55 push %ebp
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1: 89 e5 mov %esp,%ebp
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3: 83 e4 f0 and $0xfffffff0,%esp
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greeting();
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6: e8 00 03 00 00 call 30b <greeting>
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exit();
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b: e8 53 02 00 00 call 263 <exit>
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00000010 <strcpy>:
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#include "stat.h"
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#include "fcntl.h"
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#include "user.h"
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#include "x86.h"
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char*strcpy(char *s, const char *t) {
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10: 55 push %ebp
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char *os;
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os = s;
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while ((*s++ = *t++) != 0) {
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11: 31 c0 xor %eax,%eax
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char*strcpy(char *s, const char *t) {
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13: 89 e5 mov %esp,%ebp
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15: 53 push %ebx
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16: 8b 4d 08 mov 0x8(%ebp),%ecx
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19: 8b 5d 0c mov 0xc(%ebp),%ebx
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1c: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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while ((*s++ = *t++) != 0) {
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20: 0f b6 14 03 movzbl (%ebx,%eax,1),%edx
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24: 88 14 01 mov %dl,(%ecx,%eax,1)
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27: 83 c0 01 add $0x1,%eax
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2a: 84 d2 test %dl,%dl
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2c: 75 f2 jne 20 <strcpy+0x10>
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;
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}
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return os;
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}
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2e: 8b 5d fc mov -0x4(%ebp),%ebx
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31: 89 c8 mov %ecx,%eax
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33: c9 leave
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34: c3 ret
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35: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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3c: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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00000040 <strcmp>:
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int strcmp(const char *p, const char *q) {
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40: 55 push %ebp
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41: 89 e5 mov %esp,%ebp
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43: 53 push %ebx
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44: 8b 55 08 mov 0x8(%ebp),%edx
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47: 8b 4d 0c mov 0xc(%ebp),%ecx
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while (*p && *p == *q) {
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4a: 0f b6 02 movzbl (%edx),%eax
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4d: 84 c0 test %al,%al
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4f: 75 17 jne 68 <strcmp+0x28>
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51: eb 3a jmp 8d <strcmp+0x4d>
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53: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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57: 90 nop
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58: 0f b6 42 01 movzbl 0x1(%edx),%eax
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p++, q++;
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5c: 83 c2 01 add $0x1,%edx
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5f: 8d 59 01 lea 0x1(%ecx),%ebx
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while (*p && *p == *q) {
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62: 84 c0 test %al,%al
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64: 74 1a je 80 <strcmp+0x40>
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p++, q++;
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66: 89 d9 mov %ebx,%ecx
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while (*p && *p == *q) {
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68: 0f b6 19 movzbl (%ecx),%ebx
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6b: 38 c3 cmp %al,%bl
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6d: 74 e9 je 58 <strcmp+0x18>
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}
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return (uchar) * p - (uchar) * q;
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6f: 29 d8 sub %ebx,%eax
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}
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71: 8b 5d fc mov -0x4(%ebp),%ebx
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74: c9 leave
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75: c3 ret
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76: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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7d: 8d 76 00 lea 0x0(%esi),%esi
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return (uchar) * p - (uchar) * q;
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80: 0f b6 59 01 movzbl 0x1(%ecx),%ebx
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84: 31 c0 xor %eax,%eax
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86: 29 d8 sub %ebx,%eax
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}
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88: 8b 5d fc mov -0x4(%ebp),%ebx
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8b: c9 leave
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8c: c3 ret
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return (uchar) * p - (uchar) * q;
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8d: 0f b6 19 movzbl (%ecx),%ebx
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90: 31 c0 xor %eax,%eax
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92: eb db jmp 6f <strcmp+0x2f>
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94: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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9b: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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9f: 90 nop
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000000a0 <strlen>:
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uint strlen(const char *s) {
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a0: 55 push %ebp
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a1: 89 e5 mov %esp,%ebp
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a3: 8b 55 08 mov 0x8(%ebp),%edx
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int n;
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for (n = 0; s[n]; n++) {
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a6: 80 3a 00 cmpb $0x0,(%edx)
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a9: 74 15 je c0 <strlen+0x20>
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ab: 31 c0 xor %eax,%eax
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ad: 8d 76 00 lea 0x0(%esi),%esi
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b0: 83 c0 01 add $0x1,%eax
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b3: 80 3c 02 00 cmpb $0x0,(%edx,%eax,1)
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b7: 89 c1 mov %eax,%ecx
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b9: 75 f5 jne b0 <strlen+0x10>
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;
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}
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return n;
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}
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bb: 89 c8 mov %ecx,%eax
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bd: 5d pop %ebp
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be: c3 ret
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bf: 90 nop
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for (n = 0; s[n]; n++) {
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c0: 31 c9 xor %ecx,%ecx
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}
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c2: 5d pop %ebp
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c3: 89 c8 mov %ecx,%eax
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c5: c3 ret
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c6: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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cd: 8d 76 00 lea 0x0(%esi),%esi
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000000d0 <memset>:
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void* memset(void *dst, int c, uint n) {
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d0: 55 push %ebp
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d1: 89 e5 mov %esp,%ebp
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d3: 57 push %edi
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d4: 8b 55 08 mov 0x8(%ebp),%edx
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"d" (port), "0" (addr), "1" (cnt) :
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"cc");
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}
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static inline void stosb(void *addr, int data, int cnt) {
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asm volatile ("cld; rep stosb" :
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d7: 8b 4d 10 mov 0x10(%ebp),%ecx
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da: 8b 45 0c mov 0xc(%ebp),%eax
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dd: 89 d7 mov %edx,%edi
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df: fc cld
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e0: f3 aa rep stos %al,%es:(%edi)
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stosb(dst, c, n);
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return dst;
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}
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e2: 8b 7d fc mov -0x4(%ebp),%edi
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e5: 89 d0 mov %edx,%eax
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e7: c9 leave
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e8: c3 ret
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e9: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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000000f0 <strchr>:
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char* strchr(const char *s, char c) {
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f0: 55 push %ebp
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f1: 89 e5 mov %esp,%ebp
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f3: 8b 45 08 mov 0x8(%ebp),%eax
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f6: 0f b6 4d 0c movzbl 0xc(%ebp),%ecx
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for (; *s; s++) {
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fa: 0f b6 10 movzbl (%eax),%edx
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fd: 84 d2 test %dl,%dl
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ff: 75 12 jne 113 <strchr+0x23>
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101: eb 1d jmp 120 <strchr+0x30>
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103: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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107: 90 nop
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108: 0f b6 50 01 movzbl 0x1(%eax),%edx
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10c: 83 c0 01 add $0x1,%eax
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10f: 84 d2 test %dl,%dl
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111: 74 0d je 120 <strchr+0x30>
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if (*s == c) {
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113: 38 d1 cmp %dl,%cl
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115: 75 f1 jne 108 <strchr+0x18>
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return (char*)s;
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}
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}
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return 0;
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}
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117: 5d pop %ebp
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118: c3 ret
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119: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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return 0;
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120: 31 c0 xor %eax,%eax
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}
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122: 5d pop %ebp
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123: c3 ret
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124: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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12b: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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12f: 90 nop
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00000130 <gets>:
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char* gets(char *buf, int max) {
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130: 55 push %ebp
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131: 89 e5 mov %esp,%ebp
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133: 57 push %edi
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134: 56 push %esi
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int i, cc;
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char c;
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for (i = 0; i + 1 < max;) {
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cc = read(0, &c, 1);
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135: 8d 7d e7 lea -0x19(%ebp),%edi
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char* gets(char *buf, int max) {
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138: 53 push %ebx
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for (i = 0; i + 1 < max;) {
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139: 31 db xor %ebx,%ebx
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char* gets(char *buf, int max) {
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13b: 83 ec 1c sub $0x1c,%esp
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for (i = 0; i + 1 < max;) {
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13e: eb 27 jmp 167 <gets+0x37>
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cc = read(0, &c, 1);
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140: 83 ec 04 sub $0x4,%esp
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143: 6a 01 push $0x1
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145: 57 push %edi
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146: 6a 00 push $0x0
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148: e8 2e 01 00 00 call 27b <read>
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if (cc < 1) {
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14d: 83 c4 10 add $0x10,%esp
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150: 85 c0 test %eax,%eax
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152: 7e 1d jle 171 <gets+0x41>
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break;
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}
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buf[i++] = c;
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154: 0f b6 45 e7 movzbl -0x19(%ebp),%eax
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158: 8b 55 08 mov 0x8(%ebp),%edx
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15b: 88 44 1a ff mov %al,-0x1(%edx,%ebx,1)
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if (c == '\n' || c == '\r') {
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15f: 3c 0a cmp $0xa,%al
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161: 74 1d je 180 <gets+0x50>
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163: 3c 0d cmp $0xd,%al
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165: 74 19 je 180 <gets+0x50>
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for (i = 0; i + 1 < max;) {
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167: 89 de mov %ebx,%esi
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169: 83 c3 01 add $0x1,%ebx
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16c: 3b 5d 0c cmp 0xc(%ebp),%ebx
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16f: 7c cf jl 140 <gets+0x10>
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break;
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}
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}
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buf[i] = '\0';
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171: 8b 45 08 mov 0x8(%ebp),%eax
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174: c6 04 30 00 movb $0x0,(%eax,%esi,1)
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return buf;
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}
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178: 8d 65 f4 lea -0xc(%ebp),%esp
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17b: 5b pop %ebx
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17c: 5e pop %esi
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17d: 5f pop %edi
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17e: 5d pop %ebp
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17f: c3 ret
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buf[i] = '\0';
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180: 8b 45 08 mov 0x8(%ebp),%eax
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183: 89 de mov %ebx,%esi
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185: c6 04 30 00 movb $0x0,(%eax,%esi,1)
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}
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189: 8d 65 f4 lea -0xc(%ebp),%esp
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18c: 5b pop %ebx
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18d: 5e pop %esi
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18e: 5f pop %edi
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18f: 5d pop %ebp
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190: c3 ret
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191: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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198: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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19f: 90 nop
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000001a0 <stat>:
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int stat(const char *n, struct stat *st) {
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1a0: 55 push %ebp
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1a1: 89 e5 mov %esp,%ebp
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1a3: 56 push %esi
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1a4: 53 push %ebx
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int fd;
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int r;
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fd = open(n, O_RDONLY);
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1a5: 83 ec 08 sub $0x8,%esp
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1a8: 6a 00 push $0x0
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1aa: ff 75 08 push 0x8(%ebp)
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1ad: e8 19 01 00 00 call 2cb <open>
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if (fd < 0) {
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1b2: 83 c4 10 add $0x10,%esp
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1b5: 85 c0 test %eax,%eax
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1b7: 78 27 js 1e0 <stat+0x40>
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return -1;
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}
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r = fstat(fd, st);
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1b9: 83 ec 08 sub $0x8,%esp
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1bc: ff 75 0c push 0xc(%ebp)
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1bf: 89 c3 mov %eax,%ebx
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1c1: 50 push %eax
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1c2: e8 cc 00 00 00 call 293 <fstat>
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close(fd);
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1c7: 89 1c 24 mov %ebx,(%esp)
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r = fstat(fd, st);
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1ca: 89 c6 mov %eax,%esi
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close(fd);
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1cc: e8 2a 01 00 00 call 2fb <close>
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return r;
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1d1: 83 c4 10 add $0x10,%esp
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}
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1d4: 8d 65 f8 lea -0x8(%ebp),%esp
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1d7: 89 f0 mov %esi,%eax
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1d9: 5b pop %ebx
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1da: 5e pop %esi
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1db: 5d pop %ebp
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1dc: c3 ret
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1dd: 8d 76 00 lea 0x0(%esi),%esi
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return -1;
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1e0: be ff ff ff ff mov $0xffffffff,%esi
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1e5: eb ed jmp 1d4 <stat+0x34>
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1e7: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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1ee: 66 90 xchg %ax,%ax
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000001f0 <atoi>:
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int atoi(const char *s) {
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1f0: 55 push %ebp
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1f1: 89 e5 mov %esp,%ebp
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1f3: 53 push %ebx
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1f4: 8b 55 08 mov 0x8(%ebp),%edx
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int n;
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n = 0;
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while ('0' <= *s && *s <= '9') {
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1f7: 0f be 02 movsbl (%edx),%eax
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1fa: 8d 48 d0 lea -0x30(%eax),%ecx
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1fd: 80 f9 09 cmp $0x9,%cl
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n = 0;
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200: b9 00 00 00 00 mov $0x0,%ecx
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while ('0' <= *s && *s <= '9') {
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205: 77 1e ja 225 <atoi+0x35>
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207: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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20e: 66 90 xchg %ax,%ax
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n = n * 10 + *s++ - '0';
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210: 83 c2 01 add $0x1,%edx
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213: 8d 0c 89 lea (%ecx,%ecx,4),%ecx
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216: 8d 4c 48 d0 lea -0x30(%eax,%ecx,2),%ecx
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while ('0' <= *s && *s <= '9') {
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21a: 0f be 02 movsbl (%edx),%eax
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21d: 8d 58 d0 lea -0x30(%eax),%ebx
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220: 80 fb 09 cmp $0x9,%bl
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223: 76 eb jbe 210 <atoi+0x20>
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}
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return n;
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}
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225: 8b 5d fc mov -0x4(%ebp),%ebx
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228: 89 c8 mov %ecx,%eax
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22a: c9 leave
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22b: c3 ret
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22c: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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00000230 <memmove>:
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void* memmove(void *vdst, const void *vsrc, int n) {
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230: 55 push %ebp
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231: 89 e5 mov %esp,%ebp
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233: 57 push %edi
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234: 8b 45 10 mov 0x10(%ebp),%eax
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237: 8b 55 08 mov 0x8(%ebp),%edx
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23a: 56 push %esi
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23b: 8b 75 0c mov 0xc(%ebp),%esi
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char *dst;
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const char *src;
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dst = vdst;
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src = vsrc;
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while (n-- > 0) {
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23e: 85 c0 test %eax,%eax
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240: 7e 13 jle 255 <memmove+0x25>
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242: 01 d0 add %edx,%eax
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dst = vdst;
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244: 89 d7 mov %edx,%edi
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246: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
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24d: 8d 76 00 lea 0x0(%esi),%esi
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*dst++ = *src++;
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250: a4 movsb %ds:(%esi),%es:(%edi)
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while (n-- > 0) {
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251: 39 f8 cmp %edi,%eax
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253: 75 fb jne 250 <memmove+0x20>
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}
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return vdst;
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}
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255: 5e pop %esi
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256: 89 d0 mov %edx,%eax
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258: 5f pop %edi
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259: 5d pop %ebp
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25a: c3 ret
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|
0000025b <fork>:
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|
name: \
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|
movl $SYS_ ## name, %eax; \
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int $T_SYSCALL; \
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ret
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|
|
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SYSCALL(fork)
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25b: b8 01 00 00 00 mov $0x1,%eax
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260: cd 40 int $0x40
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262: c3 ret
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00000263 <exit>:
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|
SYSCALL(exit)
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263: b8 02 00 00 00 mov $0x2,%eax
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268: cd 40 int $0x40
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26a: c3 ret
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|
0000026b <wait>:
|
|
SYSCALL(wait)
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26b: b8 03 00 00 00 mov $0x3,%eax
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270: cd 40 int $0x40
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272: c3 ret
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00000273 <pipe>:
|
|
SYSCALL(pipe)
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273: b8 04 00 00 00 mov $0x4,%eax
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278: cd 40 int $0x40
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27a: c3 ret
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|
0000027b <read>:
|
|
SYSCALL(read)
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27b: b8 05 00 00 00 mov $0x5,%eax
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280: cd 40 int $0x40
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282: c3 ret
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00000283 <kill>:
|
|
SYSCALL(kill)
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283: b8 06 00 00 00 mov $0x6,%eax
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288: cd 40 int $0x40
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28a: c3 ret
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|
0000028b <exec>:
|
|
SYSCALL(exec)
|
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28b: b8 07 00 00 00 mov $0x7,%eax
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290: cd 40 int $0x40
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292: c3 ret
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|
00000293 <fstat>:
|
|
SYSCALL(fstat)
|
|
293: b8 08 00 00 00 mov $0x8,%eax
|
|
298: cd 40 int $0x40
|
|
29a: c3 ret
|
|
|
|
0000029b <chdir>:
|
|
SYSCALL(chdir)
|
|
29b: b8 09 00 00 00 mov $0x9,%eax
|
|
2a0: cd 40 int $0x40
|
|
2a2: c3 ret
|
|
|
|
000002a3 <dup>:
|
|
SYSCALL(dup)
|
|
2a3: b8 0a 00 00 00 mov $0xa,%eax
|
|
2a8: cd 40 int $0x40
|
|
2aa: c3 ret
|
|
|
|
000002ab <getpid>:
|
|
SYSCALL(getpid)
|
|
2ab: b8 0b 00 00 00 mov $0xb,%eax
|
|
2b0: cd 40 int $0x40
|
|
2b2: c3 ret
|
|
|
|
000002b3 <sbrk>:
|
|
SYSCALL(sbrk)
|
|
2b3: b8 0c 00 00 00 mov $0xc,%eax
|
|
2b8: cd 40 int $0x40
|
|
2ba: c3 ret
|
|
|
|
000002bb <sleep>:
|
|
SYSCALL(sleep)
|
|
2bb: b8 0d 00 00 00 mov $0xd,%eax
|
|
2c0: cd 40 int $0x40
|
|
2c2: c3 ret
|
|
|
|
000002c3 <uptime>:
|
|
SYSCALL(uptime)
|
|
2c3: b8 0e 00 00 00 mov $0xe,%eax
|
|
2c8: cd 40 int $0x40
|
|
2ca: c3 ret
|
|
|
|
000002cb <open>:
|
|
SYSCALL(open)
|
|
2cb: b8 0f 00 00 00 mov $0xf,%eax
|
|
2d0: cd 40 int $0x40
|
|
2d2: c3 ret
|
|
|
|
000002d3 <write>:
|
|
SYSCALL(write)
|
|
2d3: b8 10 00 00 00 mov $0x10,%eax
|
|
2d8: cd 40 int $0x40
|
|
2da: c3 ret
|
|
|
|
000002db <mknod>:
|
|
SYSCALL(mknod)
|
|
2db: b8 11 00 00 00 mov $0x11,%eax
|
|
2e0: cd 40 int $0x40
|
|
2e2: c3 ret
|
|
|
|
000002e3 <unlink>:
|
|
SYSCALL(unlink)
|
|
2e3: b8 12 00 00 00 mov $0x12,%eax
|
|
2e8: cd 40 int $0x40
|
|
2ea: c3 ret
|
|
|
|
000002eb <link>:
|
|
SYSCALL(link)
|
|
2eb: b8 13 00 00 00 mov $0x13,%eax
|
|
2f0: cd 40 int $0x40
|
|
2f2: c3 ret
|
|
|
|
000002f3 <mkdir>:
|
|
SYSCALL(mkdir)
|
|
2f3: b8 14 00 00 00 mov $0x14,%eax
|
|
2f8: cd 40 int $0x40
|
|
2fa: c3 ret
|
|
|
|
000002fb <close>:
|
|
SYSCALL(close)
|
|
2fb: b8 15 00 00 00 mov $0x15,%eax
|
|
300: cd 40 int $0x40
|
|
302: c3 ret
|
|
|
|
00000303 <getch>:
|
|
SYSCALL(getch)
|
|
303: b8 16 00 00 00 mov $0x16,%eax
|
|
308: cd 40 int $0x40
|
|
30a: c3 ret
|
|
|
|
0000030b <greeting>:
|
|
SYSCALL(greeting)
|
|
30b: b8 17 00 00 00 mov $0x17,%eax
|
|
310: cd 40 int $0x40
|
|
312: c3 ret
|
|
|
|
00000313 <shutdown>:
|
|
SYSCALL(shutdown)
|
|
313: b8 18 00 00 00 mov $0x18,%eax
|
|
318: cd 40 int $0x40
|
|
31a: c3 ret
|
|
31b: 66 90 xchg %ax,%ax
|
|
31d: 66 90 xchg %ax,%ax
|
|
31f: 90 nop
|
|
|
|
00000320 <printint>:
|
|
|
|
static void putc(int fd, char c) {
|
|
write(fd, &c, 1);
|
|
}
|
|
|
|
static void printint(int fd, int xx, int base, int sgn) {
|
|
320: 55 push %ebp
|
|
321: 89 e5 mov %esp,%ebp
|
|
323: 57 push %edi
|
|
324: 56 push %esi
|
|
325: 53 push %ebx
|
|
326: 83 ec 3c sub $0x3c,%esp
|
|
329: 89 4d c4 mov %ecx,-0x3c(%ebp)
|
|
uint x;
|
|
|
|
neg = 0;
|
|
if (sgn && xx < 0) {
|
|
neg = 1;
|
|
x = -xx;
|
|
32c: 89 d1 mov %edx,%ecx
|
|
static void printint(int fd, int xx, int base, int sgn) {
|
|
32e: 89 45 b8 mov %eax,-0x48(%ebp)
|
|
if (sgn && xx < 0) {
|
|
331: 85 d2 test %edx,%edx
|
|
333: 0f 89 7f 00 00 00 jns 3b8 <printint+0x98>
|
|
339: f6 45 08 01 testb $0x1,0x8(%ebp)
|
|
33d: 74 79 je 3b8 <printint+0x98>
|
|
neg = 1;
|
|
33f: c7 45 bc 01 00 00 00 movl $0x1,-0x44(%ebp)
|
|
x = -xx;
|
|
346: f7 d9 neg %ecx
|
|
}
|
|
else {
|
|
x = xx;
|
|
}
|
|
|
|
i = 0;
|
|
348: 31 db xor %ebx,%ebx
|
|
34a: 8d 75 d7 lea -0x29(%ebp),%esi
|
|
34d: 8d 76 00 lea 0x0(%esi),%esi
|
|
do {
|
|
buf[i++] = digits[x % base];
|
|
350: 89 c8 mov %ecx,%eax
|
|
352: 31 d2 xor %edx,%edx
|
|
354: 89 cf mov %ecx,%edi
|
|
356: f7 75 c4 divl -0x3c(%ebp)
|
|
359: 0f b6 92 58 07 00 00 movzbl 0x758(%edx),%edx
|
|
360: 89 45 c0 mov %eax,-0x40(%ebp)
|
|
363: 89 d8 mov %ebx,%eax
|
|
365: 8d 5b 01 lea 0x1(%ebx),%ebx
|
|
}
|
|
while ((x /= base) != 0);
|
|
368: 8b 4d c0 mov -0x40(%ebp),%ecx
|
|
buf[i++] = digits[x % base];
|
|
36b: 88 14 1e mov %dl,(%esi,%ebx,1)
|
|
while ((x /= base) != 0);
|
|
36e: 39 7d c4 cmp %edi,-0x3c(%ebp)
|
|
371: 76 dd jbe 350 <printint+0x30>
|
|
if (neg) {
|
|
373: 8b 4d bc mov -0x44(%ebp),%ecx
|
|
376: 85 c9 test %ecx,%ecx
|
|
378: 74 0c je 386 <printint+0x66>
|
|
buf[i++] = '-';
|
|
37a: c6 44 1d d8 2d movb $0x2d,-0x28(%ebp,%ebx,1)
|
|
buf[i++] = digits[x % base];
|
|
37f: 89 d8 mov %ebx,%eax
|
|
buf[i++] = '-';
|
|
381: ba 2d 00 00 00 mov $0x2d,%edx
|
|
}
|
|
|
|
while (--i >= 0) {
|
|
386: 8b 7d b8 mov -0x48(%ebp),%edi
|
|
389: 8d 5c 05 d7 lea -0x29(%ebp,%eax,1),%ebx
|
|
38d: eb 07 jmp 396 <printint+0x76>
|
|
38f: 90 nop
|
|
putc(fd, buf[i]);
|
|
390: 0f b6 13 movzbl (%ebx),%edx
|
|
393: 83 eb 01 sub $0x1,%ebx
|
|
write(fd, &c, 1);
|
|
396: 83 ec 04 sub $0x4,%esp
|
|
399: 88 55 d7 mov %dl,-0x29(%ebp)
|
|
39c: 6a 01 push $0x1
|
|
39e: 56 push %esi
|
|
39f: 57 push %edi
|
|
3a0: e8 2e ff ff ff call 2d3 <write>
|
|
while (--i >= 0) {
|
|
3a5: 83 c4 10 add $0x10,%esp
|
|
3a8: 39 de cmp %ebx,%esi
|
|
3aa: 75 e4 jne 390 <printint+0x70>
|
|
}
|
|
}
|
|
3ac: 8d 65 f4 lea -0xc(%ebp),%esp
|
|
3af: 5b pop %ebx
|
|
3b0: 5e pop %esi
|
|
3b1: 5f pop %edi
|
|
3b2: 5d pop %ebp
|
|
3b3: c3 ret
|
|
3b4: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
|
|
neg = 0;
|
|
3b8: c7 45 bc 00 00 00 00 movl $0x0,-0x44(%ebp)
|
|
3bf: eb 87 jmp 348 <printint+0x28>
|
|
3c1: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
|
|
3c8: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
|
|
3cf: 90 nop
|
|
|
|
000003d0 <printf>:
|
|
|
|
// Print to the given fd. Only understands %d, %x, %p, %s.
|
|
void printf(int fd, const char *fmt, ...) {
|
|
3d0: 55 push %ebp
|
|
3d1: 89 e5 mov %esp,%ebp
|
|
3d3: 57 push %edi
|
|
3d4: 56 push %esi
|
|
3d5: 53 push %ebx
|
|
3d6: 83 ec 2c sub $0x2c,%esp
|
|
int c, i, state;
|
|
uint *ap;
|
|
|
|
state = 0;
|
|
ap = (uint*)(void*)&fmt + 1;
|
|
for (i = 0; fmt[i]; i++) {
|
|
3d9: 8b 5d 0c mov 0xc(%ebp),%ebx
|
|
void printf(int fd, const char *fmt, ...) {
|
|
3dc: 8b 75 08 mov 0x8(%ebp),%esi
|
|
for (i = 0; fmt[i]; i++) {
|
|
3df: 0f b6 13 movzbl (%ebx),%edx
|
|
3e2: 84 d2 test %dl,%dl
|
|
3e4: 74 6a je 450 <printf+0x80>
|
|
ap = (uint*)(void*)&fmt + 1;
|
|
3e6: 8d 45 10 lea 0x10(%ebp),%eax
|
|
3e9: 83 c3 01 add $0x1,%ebx
|
|
write(fd, &c, 1);
|
|
3ec: 8d 7d e7 lea -0x19(%ebp),%edi
|
|
state = 0;
|
|
3ef: 31 c9 xor %ecx,%ecx
|
|
ap = (uint*)(void*)&fmt + 1;
|
|
3f1: 89 45 d0 mov %eax,-0x30(%ebp)
|
|
3f4: eb 36 jmp 42c <printf+0x5c>
|
|
3f6: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
|
|
3fd: 8d 76 00 lea 0x0(%esi),%esi
|
|
400: 89 4d d4 mov %ecx,-0x2c(%ebp)
|
|
c = fmt[i] & 0xff;
|
|
if (state == 0) {
|
|
if (c == '%') {
|
|
state = '%';
|
|
403: b9 25 00 00 00 mov $0x25,%ecx
|
|
if (c == '%') {
|
|
408: 83 f8 25 cmp $0x25,%eax
|
|
40b: 74 15 je 422 <printf+0x52>
|
|
write(fd, &c, 1);
|
|
40d: 83 ec 04 sub $0x4,%esp
|
|
410: 88 55 e7 mov %dl,-0x19(%ebp)
|
|
413: 6a 01 push $0x1
|
|
415: 57 push %edi
|
|
416: 56 push %esi
|
|
417: e8 b7 fe ff ff call 2d3 <write>
|
|
41c: 8b 4d d4 mov -0x2c(%ebp),%ecx
|
|
}
|
|
else {
|
|
putc(fd, c);
|
|
41f: 83 c4 10 add $0x10,%esp
|
|
for (i = 0; fmt[i]; i++) {
|
|
422: 0f b6 13 movzbl (%ebx),%edx
|
|
425: 83 c3 01 add $0x1,%ebx
|
|
428: 84 d2 test %dl,%dl
|
|
42a: 74 24 je 450 <printf+0x80>
|
|
c = fmt[i] & 0xff;
|
|
42c: 0f b6 c2 movzbl %dl,%eax
|
|
if (state == 0) {
|
|
42f: 85 c9 test %ecx,%ecx
|
|
431: 74 cd je 400 <printf+0x30>
|
|
}
|
|
}
|
|
else if (state == '%') {
|
|
433: 83 f9 25 cmp $0x25,%ecx
|
|
436: 75 ea jne 422 <printf+0x52>
|
|
if (c == 'd') {
|
|
438: 83 f8 25 cmp $0x25,%eax
|
|
43b: 0f 84 07 01 00 00 je 548 <printf+0x178>
|
|
441: 83 e8 63 sub $0x63,%eax
|
|
444: 83 f8 15 cmp $0x15,%eax
|
|
447: 77 17 ja 460 <printf+0x90>
|
|
449: ff 24 85 00 07 00 00 jmp *0x700(,%eax,4)
|
|
putc(fd, c);
|
|
}
|
|
state = 0;
|
|
}
|
|
}
|
|
}
|
|
450: 8d 65 f4 lea -0xc(%ebp),%esp
|
|
453: 5b pop %ebx
|
|
454: 5e pop %esi
|
|
455: 5f pop %edi
|
|
456: 5d pop %ebp
|
|
457: c3 ret
|
|
458: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
|
|
45f: 90 nop
|
|
write(fd, &c, 1);
|
|
460: 83 ec 04 sub $0x4,%esp
|
|
463: 88 55 d4 mov %dl,-0x2c(%ebp)
|
|
466: 6a 01 push $0x1
|
|
468: 57 push %edi
|
|
469: 56 push %esi
|
|
46a: c6 45 e7 25 movb $0x25,-0x19(%ebp)
|
|
46e: e8 60 fe ff ff call 2d3 <write>
|
|
putc(fd, c);
|
|
473: 0f b6 55 d4 movzbl -0x2c(%ebp),%edx
|
|
write(fd, &c, 1);
|
|
477: 83 c4 0c add $0xc,%esp
|
|
47a: 88 55 e7 mov %dl,-0x19(%ebp)
|
|
47d: 6a 01 push $0x1
|
|
47f: 57 push %edi
|
|
480: 56 push %esi
|
|
481: e8 4d fe ff ff call 2d3 <write>
|
|
putc(fd, c);
|
|
486: 83 c4 10 add $0x10,%esp
|
|
state = 0;
|
|
489: 31 c9 xor %ecx,%ecx
|
|
48b: eb 95 jmp 422 <printf+0x52>
|
|
48d: 8d 76 00 lea 0x0(%esi),%esi
|
|
printint(fd, *ap, 16, 0);
|
|
490: 83 ec 0c sub $0xc,%esp
|
|
493: b9 10 00 00 00 mov $0x10,%ecx
|
|
498: 6a 00 push $0x0
|
|
49a: 8b 45 d0 mov -0x30(%ebp),%eax
|
|
49d: 8b 10 mov (%eax),%edx
|
|
49f: 89 f0 mov %esi,%eax
|
|
4a1: e8 7a fe ff ff call 320 <printint>
|
|
ap++;
|
|
4a6: 83 45 d0 04 addl $0x4,-0x30(%ebp)
|
|
4aa: 83 c4 10 add $0x10,%esp
|
|
state = 0;
|
|
4ad: 31 c9 xor %ecx,%ecx
|
|
4af: e9 6e ff ff ff jmp 422 <printf+0x52>
|
|
4b4: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
|
|
s = (char*)*ap;
|
|
4b8: 8b 45 d0 mov -0x30(%ebp),%eax
|
|
4bb: 8b 10 mov (%eax),%edx
|
|
ap++;
|
|
4bd: 83 c0 04 add $0x4,%eax
|
|
4c0: 89 45 d0 mov %eax,-0x30(%ebp)
|
|
if (s == 0) {
|
|
4c3: 85 d2 test %edx,%edx
|
|
4c5: 0f 84 8d 00 00 00 je 558 <printf+0x188>
|
|
while (*s != 0) {
|
|
4cb: 0f b6 02 movzbl (%edx),%eax
|
|
state = 0;
|
|
4ce: 31 c9 xor %ecx,%ecx
|
|
while (*s != 0) {
|
|
4d0: 84 c0 test %al,%al
|
|
4d2: 0f 84 4a ff ff ff je 422 <printf+0x52>
|
|
4d8: 89 5d d4 mov %ebx,-0x2c(%ebp)
|
|
4db: 89 d3 mov %edx,%ebx
|
|
4dd: 8d 76 00 lea 0x0(%esi),%esi
|
|
write(fd, &c, 1);
|
|
4e0: 83 ec 04 sub $0x4,%esp
|
|
s++;
|
|
4e3: 83 c3 01 add $0x1,%ebx
|
|
4e6: 88 45 e7 mov %al,-0x19(%ebp)
|
|
write(fd, &c, 1);
|
|
4e9: 6a 01 push $0x1
|
|
4eb: 57 push %edi
|
|
4ec: 56 push %esi
|
|
4ed: e8 e1 fd ff ff call 2d3 <write>
|
|
while (*s != 0) {
|
|
4f2: 0f b6 03 movzbl (%ebx),%eax
|
|
4f5: 83 c4 10 add $0x10,%esp
|
|
4f8: 84 c0 test %al,%al
|
|
4fa: 75 e4 jne 4e0 <printf+0x110>
|
|
state = 0;
|
|
4fc: 8b 5d d4 mov -0x2c(%ebp),%ebx
|
|
4ff: 31 c9 xor %ecx,%ecx
|
|
501: e9 1c ff ff ff jmp 422 <printf+0x52>
|
|
506: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
|
|
50d: 8d 76 00 lea 0x0(%esi),%esi
|
|
printint(fd, *ap, 10, 1);
|
|
510: 83 ec 0c sub $0xc,%esp
|
|
513: b9 0a 00 00 00 mov $0xa,%ecx
|
|
518: 6a 01 push $0x1
|
|
51a: e9 7b ff ff ff jmp 49a <printf+0xca>
|
|
51f: 90 nop
|
|
putc(fd, *ap);
|
|
520: 8b 45 d0 mov -0x30(%ebp),%eax
|
|
write(fd, &c, 1);
|
|
523: 83 ec 04 sub $0x4,%esp
|
|
putc(fd, *ap);
|
|
526: 8b 00 mov (%eax),%eax
|
|
write(fd, &c, 1);
|
|
528: 6a 01 push $0x1
|
|
52a: 57 push %edi
|
|
52b: 56 push %esi
|
|
putc(fd, *ap);
|
|
52c: 88 45 e7 mov %al,-0x19(%ebp)
|
|
write(fd, &c, 1);
|
|
52f: e8 9f fd ff ff call 2d3 <write>
|
|
ap++;
|
|
534: 83 45 d0 04 addl $0x4,-0x30(%ebp)
|
|
538: 83 c4 10 add $0x10,%esp
|
|
state = 0;
|
|
53b: 31 c9 xor %ecx,%ecx
|
|
53d: e9 e0 fe ff ff jmp 422 <printf+0x52>
|
|
542: 8d b6 00 00 00 00 lea 0x0(%esi),%esi
|
|
putc(fd, c);
|
|
548: 88 55 e7 mov %dl,-0x19(%ebp)
|
|
write(fd, &c, 1);
|
|
54b: 83 ec 04 sub $0x4,%esp
|
|
54e: e9 2a ff ff ff jmp 47d <printf+0xad>
|
|
553: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
|
|
557: 90 nop
|
|
s = "(null)";
|
|
558: ba f8 06 00 00 mov $0x6f8,%edx
|
|
while (*s != 0) {
|
|
55d: 89 5d d4 mov %ebx,-0x2c(%ebp)
|
|
560: b8 28 00 00 00 mov $0x28,%eax
|
|
565: 89 d3 mov %edx,%ebx
|
|
567: e9 74 ff ff ff jmp 4e0 <printf+0x110>
|
|
56c: 66 90 xchg %ax,%ax
|
|
56e: 66 90 xchg %ax,%ax
|
|
|
|
00000570 <free>:
|
|
typedef union header Header;
|
|
|
|
static Header base;
|
|
static Header *freep;
|
|
|
|
void free(void *ap) {
|
|
570: 55 push %ebp
|
|
Header *bp, *p;
|
|
|
|
bp = (Header*)ap - 1;
|
|
for (p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr) {
|
|
571: a1 f8 09 00 00 mov 0x9f8,%eax
|
|
void free(void *ap) {
|
|
576: 89 e5 mov %esp,%ebp
|
|
578: 57 push %edi
|
|
579: 56 push %esi
|
|
57a: 53 push %ebx
|
|
57b: 8b 5d 08 mov 0x8(%ebp),%ebx
|
|
bp = (Header*)ap - 1;
|
|
57e: 8d 4b f8 lea -0x8(%ebx),%ecx
|
|
for (p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr) {
|
|
581: 8d b4 26 00 00 00 00 lea 0x0(%esi,%eiz,1),%esi
|
|
588: 89 c2 mov %eax,%edx
|
|
58a: 8b 00 mov (%eax),%eax
|
|
58c: 39 ca cmp %ecx,%edx
|
|
58e: 73 30 jae 5c0 <free+0x50>
|
|
590: 39 c1 cmp %eax,%ecx
|
|
592: 72 04 jb 598 <free+0x28>
|
|
if (p >= p->s.ptr && (bp > p || bp < p->s.ptr)) {
|
|
594: 39 c2 cmp %eax,%edx
|
|
596: 72 f0 jb 588 <free+0x18>
|
|
break;
|
|
}
|
|
}
|
|
if (bp + bp->s.size == p->s.ptr) {
|
|
598: 8b 73 fc mov -0x4(%ebx),%esi
|
|
59b: 8d 3c f1 lea (%ecx,%esi,8),%edi
|
|
59e: 39 f8 cmp %edi,%eax
|
|
5a0: 74 30 je 5d2 <free+0x62>
|
|
bp->s.size += p->s.ptr->s.size;
|
|
bp->s.ptr = p->s.ptr->s.ptr;
|
|
5a2: 89 43 f8 mov %eax,-0x8(%ebx)
|
|
}
|
|
else {
|
|
bp->s.ptr = p->s.ptr;
|
|
}
|
|
if (p + p->s.size == bp) {
|
|
5a5: 8b 42 04 mov 0x4(%edx),%eax
|
|
5a8: 8d 34 c2 lea (%edx,%eax,8),%esi
|
|
5ab: 39 f1 cmp %esi,%ecx
|
|
5ad: 74 3a je 5e9 <free+0x79>
|
|
p->s.size += bp->s.size;
|
|
p->s.ptr = bp->s.ptr;
|
|
5af: 89 0a mov %ecx,(%edx)
|
|
}
|
|
else {
|
|
p->s.ptr = bp;
|
|
}
|
|
freep = p;
|
|
}
|
|
5b1: 5b pop %ebx
|
|
freep = p;
|
|
5b2: 89 15 f8 09 00 00 mov %edx,0x9f8
|
|
}
|
|
5b8: 5e pop %esi
|
|
5b9: 5f pop %edi
|
|
5ba: 5d pop %ebp
|
|
5bb: c3 ret
|
|
5bc: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
|
|
if (p >= p->s.ptr && (bp > p || bp < p->s.ptr)) {
|
|
5c0: 39 c2 cmp %eax,%edx
|
|
5c2: 72 c4 jb 588 <free+0x18>
|
|
5c4: 39 c1 cmp %eax,%ecx
|
|
5c6: 73 c0 jae 588 <free+0x18>
|
|
if (bp + bp->s.size == p->s.ptr) {
|
|
5c8: 8b 73 fc mov -0x4(%ebx),%esi
|
|
5cb: 8d 3c f1 lea (%ecx,%esi,8),%edi
|
|
5ce: 39 f8 cmp %edi,%eax
|
|
5d0: 75 d0 jne 5a2 <free+0x32>
|
|
bp->s.size += p->s.ptr->s.size;
|
|
5d2: 03 70 04 add 0x4(%eax),%esi
|
|
5d5: 89 73 fc mov %esi,-0x4(%ebx)
|
|
bp->s.ptr = p->s.ptr->s.ptr;
|
|
5d8: 8b 02 mov (%edx),%eax
|
|
5da: 8b 00 mov (%eax),%eax
|
|
5dc: 89 43 f8 mov %eax,-0x8(%ebx)
|
|
if (p + p->s.size == bp) {
|
|
5df: 8b 42 04 mov 0x4(%edx),%eax
|
|
5e2: 8d 34 c2 lea (%edx,%eax,8),%esi
|
|
5e5: 39 f1 cmp %esi,%ecx
|
|
5e7: 75 c6 jne 5af <free+0x3f>
|
|
p->s.size += bp->s.size;
|
|
5e9: 03 43 fc add -0x4(%ebx),%eax
|
|
freep = p;
|
|
5ec: 89 15 f8 09 00 00 mov %edx,0x9f8
|
|
p->s.size += bp->s.size;
|
|
5f2: 89 42 04 mov %eax,0x4(%edx)
|
|
p->s.ptr = bp->s.ptr;
|
|
5f5: 8b 4b f8 mov -0x8(%ebx),%ecx
|
|
5f8: 89 0a mov %ecx,(%edx)
|
|
}
|
|
5fa: 5b pop %ebx
|
|
5fb: 5e pop %esi
|
|
5fc: 5f pop %edi
|
|
5fd: 5d pop %ebp
|
|
5fe: c3 ret
|
|
5ff: 90 nop
|
|
|
|
00000600 <malloc>:
|
|
hp->s.size = nu;
|
|
free((void*)(hp + 1));
|
|
return freep;
|
|
}
|
|
|
|
void* malloc(uint nbytes) {
|
|
600: 55 push %ebp
|
|
601: 89 e5 mov %esp,%ebp
|
|
603: 57 push %edi
|
|
604: 56 push %esi
|
|
605: 53 push %ebx
|
|
606: 83 ec 1c sub $0x1c,%esp
|
|
Header *p, *prevp;
|
|
uint nunits;
|
|
|
|
nunits = (nbytes + sizeof(Header) - 1) / sizeof(Header) + 1;
|
|
609: 8b 45 08 mov 0x8(%ebp),%eax
|
|
if ((prevp = freep) == 0) {
|
|
60c: 8b 3d f8 09 00 00 mov 0x9f8,%edi
|
|
nunits = (nbytes + sizeof(Header) - 1) / sizeof(Header) + 1;
|
|
612: 8d 70 07 lea 0x7(%eax),%esi
|
|
615: c1 ee 03 shr $0x3,%esi
|
|
618: 83 c6 01 add $0x1,%esi
|
|
if ((prevp = freep) == 0) {
|
|
61b: 85 ff test %edi,%edi
|
|
61d: 0f 84 9d 00 00 00 je 6c0 <malloc+0xc0>
|
|
base.s.ptr = freep = prevp = &base;
|
|
base.s.size = 0;
|
|
}
|
|
for (p = prevp->s.ptr;; prevp = p, p = p->s.ptr) {
|
|
623: 8b 17 mov (%edi),%edx
|
|
if (p->s.size >= nunits) {
|
|
625: 8b 4a 04 mov 0x4(%edx),%ecx
|
|
628: 39 f1 cmp %esi,%ecx
|
|
62a: 73 6a jae 696 <malloc+0x96>
|
|
62c: bb 00 10 00 00 mov $0x1000,%ebx
|
|
631: 39 de cmp %ebx,%esi
|
|
633: 0f 43 de cmovae %esi,%ebx
|
|
p = sbrk(nu * sizeof(Header));
|
|
636: 8d 04 dd 00 00 00 00 lea 0x0(,%ebx,8),%eax
|
|
63d: 89 45 e4 mov %eax,-0x1c(%ebp)
|
|
640: eb 17 jmp 659 <malloc+0x59>
|
|
642: 8d b6 00 00 00 00 lea 0x0(%esi),%esi
|
|
for (p = prevp->s.ptr;; prevp = p, p = p->s.ptr) {
|
|
648: 8b 02 mov (%edx),%eax
|
|
if (p->s.size >= nunits) {
|
|
64a: 8b 48 04 mov 0x4(%eax),%ecx
|
|
64d: 39 f1 cmp %esi,%ecx
|
|
64f: 73 4f jae 6a0 <malloc+0xa0>
|
|
p->s.size = nunits;
|
|
}
|
|
freep = prevp;
|
|
return (void*)(p + 1);
|
|
}
|
|
if (p == freep) {
|
|
651: 8b 3d f8 09 00 00 mov 0x9f8,%edi
|
|
657: 89 c2 mov %eax,%edx
|
|
659: 39 d7 cmp %edx,%edi
|
|
65b: 75 eb jne 648 <malloc+0x48>
|
|
p = sbrk(nu * sizeof(Header));
|
|
65d: 83 ec 0c sub $0xc,%esp
|
|
660: ff 75 e4 push -0x1c(%ebp)
|
|
663: e8 4b fc ff ff call 2b3 <sbrk>
|
|
if (p == (char*)-1) {
|
|
668: 83 c4 10 add $0x10,%esp
|
|
66b: 83 f8 ff cmp $0xffffffff,%eax
|
|
66e: 74 1c je 68c <malloc+0x8c>
|
|
hp->s.size = nu;
|
|
670: 89 58 04 mov %ebx,0x4(%eax)
|
|
free((void*)(hp + 1));
|
|
673: 83 ec 0c sub $0xc,%esp
|
|
676: 83 c0 08 add $0x8,%eax
|
|
679: 50 push %eax
|
|
67a: e8 f1 fe ff ff call 570 <free>
|
|
return freep;
|
|
67f: 8b 15 f8 09 00 00 mov 0x9f8,%edx
|
|
if ((p = morecore(nunits)) == 0) {
|
|
685: 83 c4 10 add $0x10,%esp
|
|
688: 85 d2 test %edx,%edx
|
|
68a: 75 bc jne 648 <malloc+0x48>
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
68c: 8d 65 f4 lea -0xc(%ebp),%esp
|
|
return 0;
|
|
68f: 31 c0 xor %eax,%eax
|
|
}
|
|
691: 5b pop %ebx
|
|
692: 5e pop %esi
|
|
693: 5f pop %edi
|
|
694: 5d pop %ebp
|
|
695: c3 ret
|
|
if (p->s.size >= nunits) {
|
|
696: 89 d0 mov %edx,%eax
|
|
698: 89 fa mov %edi,%edx
|
|
69a: 8d b6 00 00 00 00 lea 0x0(%esi),%esi
|
|
if (p->s.size == nunits) {
|
|
6a0: 39 ce cmp %ecx,%esi
|
|
6a2: 74 4c je 6f0 <malloc+0xf0>
|
|
p->s.size -= nunits;
|
|
6a4: 29 f1 sub %esi,%ecx
|
|
6a6: 89 48 04 mov %ecx,0x4(%eax)
|
|
p += p->s.size;
|
|
6a9: 8d 04 c8 lea (%eax,%ecx,8),%eax
|
|
p->s.size = nunits;
|
|
6ac: 89 70 04 mov %esi,0x4(%eax)
|
|
freep = prevp;
|
|
6af: 89 15 f8 09 00 00 mov %edx,0x9f8
|
|
}
|
|
6b5: 8d 65 f4 lea -0xc(%ebp),%esp
|
|
return (void*)(p + 1);
|
|
6b8: 83 c0 08 add $0x8,%eax
|
|
}
|
|
6bb: 5b pop %ebx
|
|
6bc: 5e pop %esi
|
|
6bd: 5f pop %edi
|
|
6be: 5d pop %ebp
|
|
6bf: c3 ret
|
|
base.s.ptr = freep = prevp = &base;
|
|
6c0: c7 05 f8 09 00 00 fc movl $0x9fc,0x9f8
|
|
6c7: 09 00 00
|
|
base.s.size = 0;
|
|
6ca: bf fc 09 00 00 mov $0x9fc,%edi
|
|
base.s.ptr = freep = prevp = &base;
|
|
6cf: c7 05 fc 09 00 00 fc movl $0x9fc,0x9fc
|
|
6d6: 09 00 00
|
|
for (p = prevp->s.ptr;; prevp = p, p = p->s.ptr) {
|
|
6d9: 89 fa mov %edi,%edx
|
|
base.s.size = 0;
|
|
6db: c7 05 00 0a 00 00 00 movl $0x0,0xa00
|
|
6e2: 00 00 00
|
|
if (p->s.size >= nunits) {
|
|
6e5: e9 42 ff ff ff jmp 62c <malloc+0x2c>
|
|
6ea: 8d b6 00 00 00 00 lea 0x0(%esi),%esi
|
|
prevp->s.ptr = p->s.ptr;
|
|
6f0: 8b 08 mov (%eax),%ecx
|
|
6f2: 89 0a mov %ecx,(%edx)
|
|
6f4: eb b9 jmp 6af <malloc+0xaf>
|