19 lines
468 B
C
19 lines
468 B
C
#include <stdint.h>
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#include <uprintf.h>
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uint64_t syscall(uint64_t num, uint64_t arg1, uint64_t arg2,
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uint64_t arg3, uint64_t arg4, uint64_t arg5, uint64_t arg6) {
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uint64_t ret;
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asm volatile(
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"mov %[a4], %%r10\n"
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"mov %[a5], %%r8\n"
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"mov %[a6], %%r9\n"
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"int $0x80\n"
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: "=a"(ret)
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: "a"(num), "D"(arg1), "S"(arg2), "d"(arg3),
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[a4]"r"(arg4), [a5]"r"(arg5), [a6]"r"(arg6)
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: "r10", "r8", "r9", "memory", "cc"
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);
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return ret;
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}
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