mirror of https://gitee.com/openkylin/qemu.git
27 lines
576 B
C
27 lines
576 B
C
#include <asm/unistd.h>
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extern 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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extern 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 _startup(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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}
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