89 lines
2.8 KiB
Scheme
89 lines
2.8 KiB
Scheme
(load "shared/util")
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(load "shared/ch5-regsim")
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(load "shared/ch5-compiler")
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(load "shared/ch5-eceval-support")
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(display "\nex-5.50 - compile-metacircular-evaluator\n")
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(define mceval-code
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(let ((port (open-input-file "shared/ch4-mceval.scm")))
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(read port)))
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(define mceval-compiled
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(append
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(list '(assign env (op get-global-environment)))
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(statements (compile mceval-code 'val 'next))))
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;; write assembly to file for debug purposes
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; (let ((port (open-output-file "f-mceval-compiled.scm")))
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; (define (write-list-to-port xs port)
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; (if (null? xs) '()
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; (begin (display (car xs) port) (display "\n" port)
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; (write-list-to-port (cdr xs) port))))
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; (write-list-to-port mceval-compiled port)
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; (close-output-port port))
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(define eceval-operations (list
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(list 'list list)
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(list 'cons cons)
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(list 'true? true?)
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(list 'false? false?) ;for compiled code
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(list 'make-procedure make-procedure)
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(list 'compound-procedure? compound-procedure?)
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(list 'procedure-parameters procedure-parameters)
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(list 'procedure-body procedure-body)
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(list 'procedure-environment procedure-environment)
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(list 'extend-environment extend-environment)
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(list 'lookup-variable-value lookup-variable-value)
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(list 'set-variable-value! set-variable-value!)
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(list 'define-variable! define-variable!)
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(list 'primitive-procedure? primitive-procedure?)
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(list 'apply-primitive-procedure apply-primitive-procedure)
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(list 'prompt-for-input prompt-for-input)
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(list 'announce-output announce-output)
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(list 'user-print user-print)
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(list 'empty-arglist empty-arglist)
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(list 'adjoin-arg adjoin-arg)
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(list 'last-operand? last-operand?)
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(list 'no-more-exps? no-more-exps?) ;for non-tail-recursive machine
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(list 'get-global-environment get-global-environment)
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;;for compiled code (also in eceval-support.scm)
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(list 'make-compiled-procedure make-compiled-procedure)
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(list 'compiled-procedure? compiled-procedure?)
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(list 'compiled-procedure-entry compiled-procedure-entry)
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(list 'compiled-procedure-env compiled-procedure-env)
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))
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(define the-global-environment (setup-environment))
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(define mceval-machine
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(make-machine
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'(exp env val proc argl continue unev)
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eceval-operations
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mceval-compiled))
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(start mceval-machine)
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;; (factorial 5) computed by compiled mceval executed by register simulator
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(assert (get-register-contents mceval-machine 'val) 120)
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;; Uncomment driver loop within shared/ch4-mceval.scm and load in mit-scheme
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;; for REPL:
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; λ symposium sicp → λ git master* → mit-scheme
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; 1 ]=> (load "ex-5_50-52")
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; ;;; M-Eval input:
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; (define (f n) (if (= n 1) 1 (* n (f (- n 1)))))
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; ;;; M-Eval value:
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; ok
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; ;;; M-Eval input:
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; (f 10)
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; ;;; M-Eval value:
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; 3628800
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; #magic
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(display "\nex-5.51\n")
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;(display "\nex-5.52\n")
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