1 files changed, 2 insertions, 1 deletions
diff --git a/opcode.h b/opcode.h
index 4c5d585..40b832f 100644
--- a/opcode.h
+++ b/opcode.h
@@ -10,6 +10,7 @@
 #define keypoll 0
 
 #define OPNUM 74
+#define EXT_OPNUM 49
 
 #define C (1 << 0) /* Carry flag. */
 #define Z (1 << 1) /* Zero flag. */
@@ -55,10 +56,10 @@ union reg {
 struct sux {
 	union reg ps; /* The processor status register. */
 	uint64_t a, b, y, x; /* Registers A, B, X, and Y. */
+	uint64_t e; /* Effective address register. */
 	uint64_t pc; /* Program counter. */
 	uint64_t sp; /* Stack pointer. */
 	uint64_t clk; /* Number of clock cycles.  */
-	uint8_t crt; /* Current running threads. */
 };
 
 extern int asmmon();