+namespace factor {
+
#define FACTOR_CPU_STRING "x86.64"
-register CELL ds asm("r14");
-register CELL rs asm("r15");
+// Must match the calculation in word jit-signal-handler-prolog in
+// basis/bootstrap/assembler/x86.factor
+static const unsigned SIGNAL_HANDLER_STACK_FRAME_SIZE = 192;
-#define F_FASTCALL extern "C"
+}