28 lines
752 B
C
28 lines
752 B
C
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#include "syscall.h"
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int __syscall(int num, void *a0, void *a1, void *a2, void *a3, void *a4)
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{
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int ret;
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asm volatile(" \n \
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mov %1, %%eax; \n \
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mov %2, %%ebx; \n \
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mov %3, %%ecx; \n \
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mov %4, %%edx; \n \
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mov %5, %%edi; \n \
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mov %6, %%esi; \n \
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int $48; \n \
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mov %%eax, %0" : "=m" (ret),
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"+m" (num),
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"+m" (a0),
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"+m" (a1),
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"+m" (a2),
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"+m" (a3),
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"+m" (a4));
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return ret;
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}
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int write(int fd, char *buf, int count)
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{
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return __syscall(1, (void *) fd, (void *) buf, (void *) count, (void *) 0, (void *) 0);
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}
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