add Symbol type to operand

2018-12-06 17:26:33 -08:00
parent e42eb1fb8c
commit 676ec39c51
5 changed files with 61 additions and 7 deletions
--- a/reg/types.go
+++ b/reg/types.go
@@ -140,6 +140,7 @@ func (r register) register()       {}
 type Spec uint16

 const (
+	S0   Spec = 0x0 // zero value reserved for pseudo registers
 	S8L  Spec = 0x1
 	S8H  Spec = 0x2
 	S8        = S8L