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60 lines
1.2 KiB
Odin
60 lines
1.2 KiB
Odin
package runtime
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foreign import kernel32 "system:Kernel32.lib"
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@private
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@(link_name="_tls_index")
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_tls_index: u32;
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@private
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@(link_name="_fltused")
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_fltused: i32 = 0x9875;
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@(link_name="memcpy")
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memcpy :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
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foreign kernel32 {
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RtlCopyMemory :: proc "c" (dst, src: rawptr, len: int) ---
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}
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RtlCopyMemory(dst, src, len);
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return dst;
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}
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@(link_name="memmove")
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memmove :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
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foreign kernel32 {
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RtlMoveMemory :: proc "c" (dst, src: rawptr, len: int) ---
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}
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RtlMoveMemory(dst, src, len);
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return dst;
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}
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@(link_name="memset")
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memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr {
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d := uintptr(ptr);
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b := byte(val);
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for i in 0..<uintptr(len) {
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(^byte)(d+i)^ = b;
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}
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return ptr;
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}
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// @(link_name="memcmp")
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// memcmp :: proc "c" (dst, src: rawptr, len: int) -> i32 {
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// if dst == nil || src == nil {
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// return 0;
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// }
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// if dst == src {
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// return 0;
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// }
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// d, s := uintptr(dst), uintptr(src);
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// n := uintptr(len);
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// for i := uintptr(0); i < n; i += 1 {
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// x, y := (^byte)(d+i)^, (^byte)(s+i)^;
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// if x != y {
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// return x < y ? -1 : +1;
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// }
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// }
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// return 0;
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// }
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