1 files changed, 7 insertions, 0 deletions
diff --git a/opcode.h b/opcode.h
index 81bffa4..b9d1817 100644
--- a/opcode.h
+++ b/opcode.h
@@ -203,6 +203,13 @@
 
 uint8_t *addr; /* Address Space. */
 
+union reg {
+	uint8_t u8[8];
+	uint16_t u16[4];
+	uint32_t u32[2];
+	uint64_t u64;
+};
+
 struct sux {
 	uint64_t ps; /* The processor status register. */
 	uint64_t a[8], b[8], y[8], x[8]; /* Registers A, B, X, and Y. */