build: doc external symbols (#9)

internal/gen/build.go

@@ -42,7 +42,7 @@ func (b *build) instruction(i inst.Instruction) {
 	b.Printf("func (c *Context) %s(%s) {\n", i.Opcode, s.ParameterList())
 	b.Printf("if inst, err := x86.%s(%s); err == nil", i.Opcode, s.Arguments())
 	b.Printf(" { c.Instruction(inst) }")
-	b.Printf(" else { c.AddError(err) }\n")
+	b.Printf(" else { c.adderror(err) }\n")
 	b.Printf("}\n")
 
 	// Global version.

internal/gen/mov.go

@@ -39,7 +39,7 @@ func (m *mov) Generate(is []inst.Instruction) ([]byte, error) {
 		}
 	}
 	m.Printf("default:\n")
-	m.Printf("c.AddErrorMessage(\"could not deduce mov instruction\")\n")
+	m.Printf("c.adderrormessage(\"could not deduce mov instruction\")\n")
 	m.Printf("}\n")
 	m.Printf("}\n")
 	return m.Result()