1 files changed, 20 insertions, 8 deletions
diff --git a/executor/x86_64/asm.h b/executor/x86_64/asm.h
index 6ac74f4..b82a63e 100644
--- a/executor/x86_64/asm.h
+++ b/executor/x86_64/asm.h
@@ -21,15 +21,27 @@ typedef enum {
     EDI
 } Reg32;
 
+#define REG64_EXTENDED_REG_BIT (1 << 3)
+#define REG64_REG_BITS 0x7
+
 typedef enum {
-    RAX,
-    RCX,
-    RDX,
-    RBX,
-    RSP,
-    RBP,
-    RSI,
-    RDI
+    RAX =   0,
+    RCX =   1,
+    RDX =   2,
+    RBX =   3,
+    RSP =   4,
+    RBP =   5,
+    RSI =   6,
+    RDI =   7,
+
+    R8 =    REG64_EXTENDED_REG_BIT | RAX,
+    R9 =    REG64_EXTENDED_REG_BIT | RCX,
+    R10 =   REG64_EXTENDED_REG_BIT | RDX,
+    R11 =   REG64_EXTENDED_REG_BIT | RBX,
+    R12 =   REG64_EXTENDED_REG_BIT | RSP,
+    R13 =   REG64_EXTENDED_REG_BIT | RBP,
+    R14 =   REG64_EXTENDED_REG_BIT | RSI,
+    R15 =   REG64_EXTENDED_REG_BIT | RDI
 } Reg64;
 
 typedef struct {