39 lines
953 B
Rust
39 lines
953 B
Rust
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#[cfg(target_arch = "x86_64")]
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#[allow(unused_assignments)]
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#[inline(always)]
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#[cold]
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pub unsafe fn fast_copy64(dst: *mut u64, src: *const u64, len: usize) {
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asm!("cld
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rep movsq"
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:
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: "{rdi}"(dst as usize), "{rsi}"(src as usize), "{rcx}"(len)
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: "cc", "memory"
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: "intel", "volatile");
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}
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#[cfg(target_arch = "x86_64")]
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#[allow(unused_assignments)]
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#[inline(always)]
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#[cold]
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pub unsafe fn fast_set(dst: *mut u32, src: u32, len: usize) {
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asm!("cld
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rep stosd"
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:
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: "{rdi}"(dst as usize), "{eax}"(src), "{rcx}"(len)
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: "cc", "memory"
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: "intel", "volatile");
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}
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#[cfg(target_arch = "x86_64")]
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#[allow(unused_assignments)]
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#[inline(always)]
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#[cold]
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pub unsafe fn fast_set64(dst: *mut u64, src: u64, len: usize) {
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asm!("cld
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rep stosq"
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:
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: "{rdi}"(dst as usize), "{rax}"(src), "{rcx}"(len)
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: "cc", "memory"
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: "intel", "volatile");
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}
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