Implemented register calls

src/asmc/call.go

@@ -6,26 +6,31 @@ import (
 )
 
 func (c *compiler) call(x asm.Instruction) {
-	c.code = x86.Call(c.code, 0x00_00_00_00)
-	size := 4
-	label := x.Data.(*asm.Label)
+	switch data := x.Data.(type) {
+	case *asm.Label:
+		c.code = x86.Call(c.code, 0x00_00_00_00)
+		size := 4
 
-	pointer := &pointer{
-		Position: Address(len(c.code) - size),
-		OpSize:   1,
-		Size:     uint8(size),
-	}
-
-	pointer.Resolve = func() Address {
-		destination, exists := c.codeLabels[label.Name]
-
-		if !exists {
-			panic("unknown jump label")
+		pointer := &pointer{
+			Position: Address(len(c.code) - size),
+			OpSize:   1,
+			Size:     uint8(size),
 		}
 
-		distance := destination - (pointer.Position + Address(pointer.Size))
-		return distance
-	}
+		pointer.Resolve = func() Address {
+			destination, exists := c.codeLabels[data.Name]
 
-	c.codePointers = append(c.codePointers, pointer)
+			if !exists {
+				panic("unknown jump label")
+			}
+
+			distance := destination - (pointer.Position + Address(pointer.Size))
+			return distance
+		}
+
+		c.codePointers = append(c.codePointers, pointer)
+
+	case *asm.Register:
+		c.code = x86.CallRegister(c.code, data.Register)
+	}
 }