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  • Committer: Al Stone
  • Date: 2012-02-09 01:17:20 UTC
  • Revision ID: albert.stone@canonical.com-20120209011720-tztl7ik3qayz80p4
first commit to bzr for qemu

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tests/hello-i386.c
 
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#include <asm/unistd.h>
 
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static inline volatile void exit(int status)
 
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{
 
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  int __res;
 
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  __asm__ volatile ("movl %%ecx,%%ebx\n"\
 
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                    "int $0x80" \
 
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                    :  "=a" (__res) : "0" (__NR_exit),"c" ((long)(status)));
 
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}
 
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static inline int write(int fd, const char * buf, int len)
 
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{
 
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  int status;
 
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  __asm__ volatile ("pushl %%ebx\n"\
 
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                    "movl %%esi,%%ebx\n"\
 
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                    "int $0x80\n" \
 
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                    "popl %%ebx\n"\
 
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                    : "=a" (status) \
 
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                    : "0" (__NR_write),"S" ((long)(fd)),"c" ((long)(buf)),"d" ((long)(len)));
 
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}
 
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void _start(void)
 
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{
 
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    write(1, "Hello World\n", 12);
 
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    exit(0);
 
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}