a3854d042e
llvm is giving me `error: couldn't allocate output register for constraint '{a0}'` which is a bug that needs to be fixed upstream.
79 lines
2.0 KiB
Zig
79 lines
2.0 KiB
Zig
pub fn syscall0(number: usize) usize {
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return asm volatile ("ecall"
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: [ret] "={a0}" (-> usize)
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: [number] "{a7}" (number)
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: "memory"
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);
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}
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pub fn syscall1(number: usize, arg1: usize) usize {
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return asm volatile ("ecall"
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: [ret] "={a0}" (-> usize)
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: [number] "{a7}" (number),
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[arg1] "{a0}" (arg1)
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);
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}
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pub fn syscall2(number: usize, arg1: usize, arg2: usize) usize {
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return asm volatile ("ecall"
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: [ret] "={a0}" (-> usize)
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: [number] "{a7}" (number),
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[arg1] "{a0}" (arg1),
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[arg2] "{a1}" (arg2)
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);
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}
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pub fn syscall3(number: usize, arg1: usize, arg2: usize, arg3: usize) usize {
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return asm volatile ("ecall"
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: [ret] "={a0}" (-> usize)
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: [number] "{a7}" (number),
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[arg1] "{a0}" (arg1),
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[arg2] "{a1}" (arg2),
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[arg3] "{a2}" (arg3)
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);
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}
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pub fn syscall4(number: usize, arg1: usize, arg2: usize, arg3: usize, arg4: usize) usize {
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return asm volatile ("ecall"
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: [ret] "={a0}" (-> usize)
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: [number] "{a7}" (number),
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[arg1] "{a0}" (arg1),
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[arg2] "{a1}" (arg2),
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[arg3] "{a2}" (arg3),
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[arg4] "{a3}" (arg4)
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);
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}
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pub fn syscall5(number: usize, arg1: usize, arg2: usize, arg3: usize, arg4: usize, arg5: usize) usize {
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return asm volatile ("ecall"
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: [ret] "={a0}" (-> usize)
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: [number] "{a7}" (number),
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[arg1] "{a0}" (arg1),
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[arg2] "{a1}" (arg2),
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[arg3] "{a2}" (arg3),
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[arg4] "{a3}" (arg4),
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[arg5] "{a4}" (arg5)
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);
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}
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pub fn syscall6(
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number: usize,
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arg1: usize,
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arg2: usize,
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arg3: usize,
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arg4: usize,
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arg5: usize,
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arg6: usize,
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) usize {
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return asm volatile ("ecall"
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: [ret] "={a0}" (-> usize)
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: [number] "{a7}" (number),
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[arg1] "{a0}" (arg1),
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[arg2] "{a1}" (arg2),
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[arg3] "{a2}" (arg3),
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[arg4] "{a3}" (arg4),
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[arg5] "{a4}" (arg5),
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[arg6] "{a5}" (arg6)
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);
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}
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