import isa and implicit operands

internal/inst/types.go

@@ -7,8 +7,9 @@ type Instruction struct {
 }
 
 type Form struct {
-	Operands []Operand
-	CPUID    []string
+	ISA              []string
+	Operands         []Operand
+	ImplicitOperands []Operand
 }
 
 type Operand struct {
@@ -16,6 +17,11 @@ type Operand struct {
 	Action Action
 }
 
+type ImplicitOperand struct {
+	Register string
+	Action   Action
+}
+
 type Action uint8
 
 const (