- Implemented support for Sux's base extension.

  This is the biggest milestone I've reached for this
  project, since the base extension changes alot about
  what Sux can do by default, and now makes it a viable
  instruction set for modern day use, when compared
  with other instruction sets.

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();