(define-module (modules ast assembly-tree)
  #:use-module (srfi srfi-9)
  #:export (make-subroutine
            subroutine?
            subroutine-label
            subroutine-instructions

            make-instruction
            instruction?
            instruction-operator
            instruction-operand-1
            instruction-operand-2))

(define-record-type <subroutine>
  (make-subroutine label instrs)
  subroutine?
  (label subroutine-label)
  (instrs subroutine-instructions))

(define-record-type <instruction>
  (make-instruction op oper1 oper2)
  instruction?
  (op instruction-operator)
  (oper1 instruction-operand-1)
  (oper2 instruction-operand-2))