add ntfs.sys standalone driver target, change default usb vhd layout formatting to ntfs, implement Fat32CreateDir for directory creation support in the fat32 file system driver, add a dedicated HAL serial output endpoint for COM1 writes in hal_serial.c and subscribe serial to HAL text streams, introduce waitable kernel timers with KeTimerCreate, KeTimerSet, and KeTimerCancel alongside spinlock-protected global timer list initialization and scheduler tick tracking, implement SyscallWriteFileAsync system call for asynchronous non-blocking file writes, refactor NetSocketConnect and NetSocketSendTo to use generic SYS_SOCKET_ADDRESS_K structures instead of being hardcoded to IPv4, update gethostbyname and DNS name resolution to support IPv6 parsing via ResolveNameFamily, update tcpserve.exe with -4 and -6 command-line flags to accept and display IPv6 addresses, append size and version headers to all kernel telemetry and statistics structures including SYS_PMM_STATS, SYS_CPU_STATS, and SYS_SCHEDULER_STATS, update winmm timeGetTime to look up high-resolution hardware frequencies via SysGetTickFrequency, integrate 14 native smoke test applications.

code/kernel/hal/hal_processor.c

@@ -0,0 +1,42 @@
+// HAL processor control exports. This file owns interrupt masking and processor halt instructions.
+
+#include <stdint.h>
+#include <intrin.h>
+#include <ntlite/ddi/hal_api.h>
+#pragma intrinsic(_disable)
+#pragma intrinsic(_enable)
+
+// Masks interrupts and returns the previous RFLAGS value.
+__declspec(dllexport) uintptr_t HalDisableInterrupts(void) {
+    uintptr_t flags = __readeflags();
+    _disable();
+    return flags;
+}
+
+// Restores a previously saved RFLAGS value.
+__declspec(dllexport) void HalRestoreInterrupts(uintptr_t flags) {
+    __writeeflags(flags);
+}
+
+// Enables maskable interrupts.
+__declspec(dllexport) void HalEnableInterrupts(void) {
+    _enable();
+}
+
+// Enables interrupts and halts until an interrupt arrives.
+__declspec(dllexport) void HalWaitForInterrupt(void) {
+    _enable();
+    __halt();
+}
+
+// Halts once without changing interrupt state.
+__declspec(dllexport) void HalHalt(void) {
+    __halt();
+}
+
+// Masks interrupts and permanently stops the current processor.
+__declspec(dllexport) _Noreturn void HalStopProcessor(void) {
+    _disable();
+    for (;;)
+        __halt();
+}