Added an AsIs() function to the Syscall namespace.

sortix/syscall.cpp

@@ -78,6 +78,11 @@ namespace Sortix
 			Scheduler::Switch(regs);
 		}
 
+		void AsIs()
+		{
+			system_was_incomplete = 1;
+		}
+
 		CPU::InterruptRegisters* InterruptRegs()
 		{
 			return (CPU::InterruptRegisters*) syscall_state_ptr;

sortix/syscall.h

@@ -42,6 +42,9 @@ namespace Sortix
 		// that its return value shall be discarded.
 		void Incomplete();
 
+		// For when you want the syscall exit code not to modify registers.
+		void AsIs();
+
 		CPU::InterruptRegisters* InterruptRegs();
 		CPU::SyscallRegisters* SyscallRegs();
 	}