Added the immediates.Condition type

Author: RealA10N

immediates/condition.go

@@ -0,0 +1,74 @@
+package immediates
+
+import "fmt"
+
+type Condition uint32
+
+const (
+	ConditionEq Condition = iota // Equal
+	ConditionNe                  // Not Equal
+	ConditionCs                  // Carry Set
+	ConditionCc                  // Carry Clear
+	ConditionMi                  // Minus/Negative
+	ConditionPl                  // Plus/Positive
+	ConditionVs                  // Overflow Set
+	ConditionVc                  // Overflow Clear
+	ConditionHi                  // Higher
+	ConditionLs                  // Lower or Same
+	ConditionGe                  // Greater than or Equal
+	ConditionLt                  // Less Than
+	ConditionGt                  // Greater Than
+	ConditionLe                  // Less than or Equal
+	ConditionAl                  // Always
+	ConditionNv                  // Never
+)
+
+func (c Condition) Binary() uint32 {
+	return uint32(c)
+}
+
+func (c Condition) Validate() error {
+	if c <= ConditionNv {
+		return fmt.Errorf("Condition %d out of range", c)
+	}
+	return nil
+}
+
+func (c Condition) String() string {
+	switch c {
+	case ConditionEq:
+		return "EQ"
+	case ConditionNe:
+		return "NE"
+	case ConditionCs:
+		return "CS"
+	case ConditionCc:
+		return "CC"
+	case ConditionMi:
+		return "MI"
+	case ConditionPl:
+		return "PL"
+	case ConditionVs:
+		return "VS"
+	case ConditionVc:
+		return "VC"
+	case ConditionHi:
+		return "HI"
+	case ConditionLs:
+		return "LS"
+	case ConditionGe:
+		return "GE"
+	case ConditionLt:
+		return "LT"
+	case ConditionGt:
+		return "GT"
+	case ConditionLe:
+		return "LE"
+	case ConditionAl:
+		return "AL"
+	case ConditionNv:
+		return "NV"
+	default:
+		return "??"
+	}
+}