root / tests / hello-i386.c @ b6d78bfa
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1 | 4d1135e4 | bellard | #include <asm/unistd.h> |
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2 | 4d1135e4 | bellard | |
3 | 4d1135e4 | bellard | extern inline volatile void exit(int status) |
4 | 4d1135e4 | bellard | { |
5 | 4d1135e4 | bellard | int __res;
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6 | 4d1135e4 | bellard | __asm__ volatile ("movl %%ecx,%%ebx\n"\ |
7 | 4d1135e4 | bellard | "int $0x80" \
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8 | 4d1135e4 | bellard | : "=a" (__res) : "0" (__NR_exit),"c" ((long)(status))); |
9 | 4d1135e4 | bellard | } |
10 | 4d1135e4 | bellard | |
11 | 4d1135e4 | bellard | extern inline int write(int fd, const char * buf, int len) |
12 | 4d1135e4 | bellard | { |
13 | 4d1135e4 | bellard | int status;
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14 | 4d1135e4 | bellard | __asm__ volatile ("pushl %%ebx\n"\ |
15 | 4d1135e4 | bellard | "movl %%esi,%%ebx\n"\
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16 | 4d1135e4 | bellard | "int $0x80\n" \
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17 | 4d1135e4 | bellard | "popl %%ebx\n"\
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18 | 4d1135e4 | bellard | : "=a" (status) \
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19 | 4d1135e4 | bellard | : "0" (__NR_write),"S" ((long)(fd)),"c" ((long)(buf)),"d" ((long)(len))); |
20 | 4d1135e4 | bellard | } |
21 | 4d1135e4 | bellard | |
22 | bb326a37 | bellard | void _start(void) |
23 | 4d1135e4 | bellard | { |
24 | 4d1135e4 | bellard | write(1, "Hello World\n", 12); |
25 | 4d1135e4 | bellard | exit(0);
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26 | 4d1135e4 | bellard | } |