Begin work on -target:windows_386

core/runtime/procs_windows_386.odin

@@ -0,0 +1,59 @@
+package runtime
+
+foreign import kernel32 "system:Kernel32.lib"
+
+@private
+@(link_name="_tls_index")
+_tls_index: u32;
+
+@private
+@(link_name="_fltused")
+_fltused: i32 = 0x9875;
+
+@(link_name="memcpy")
+memcpy :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
+	foreign kernel32 {
+		RtlCopyMemory :: proc "c" (dst, src: rawptr, len: int) ---
+	}
+	RtlCopyMemory(dst, src, len);
+	return dst;
+}
+
+@(link_name="memmove")
+memmove :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
+	foreign kernel32 {
+		RtlMoveMemory :: proc "c" (dst, src: rawptr, len: int) ---
+	}
+	RtlMoveMemory(dst, src, len);
+	return dst;
+}
+
+@(link_name="memset")
+memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr {
+	d := uintptr(ptr);
+	b := byte(val);
+	for i in 0..<uintptr(len) {
+		(^byte)(d+i)^ = b;
+	}
+	return ptr;
+}
+
+// @(link_name="memcmp")
+// memcmp :: proc "c" (dst, src: rawptr, len: int) -> i32 {
+// 	if dst == nil || src == nil {
+// 		return 0;
+// 	}
+// 	if dst == src {
+// 		return 0;
+// 	}
+// 	d, s := uintptr(dst), uintptr(src);
+// 	n := uintptr(len);
+
+// 	for i := uintptr(0); i < n; i += 1 {
+// 		x, y := (^byte)(d+i)^, (^byte)(s+i)^;
+// 		if x != y {
+// 			return x < y ? -1 : +1;
+// 		}
+// 	}
+// 	return 0;
+// }