Start to work on 5.33
parent
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@ -1,4 +1,5 @@
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(load "util.scm")
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(load "misc/ch5-compiler.scm")
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(display "\nex-5.31 - save-and-restore-for-apply\n")
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@ -61,10 +62,63 @@ ev-appl-did-operator-no-restore
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; before runtime
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(display "[answered]\n")
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(display "\nex-5.33\n")
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(display "CONTINUE at 5.5.3\n")
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(display "\nex-5.33 - compare-factorial-definitions\n")
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(define (compile-to-file code target linkage file-name)
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(define (write-list-to-port xs port)
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(if (null? xs)
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'()
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(begin
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(display (car xs) port)
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(display "\n" port)
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(write-list-to-port (cdr xs) port))))
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(let* ((compile-result (compile code target linkage))
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(assembly-insts (statements compile-result))
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(port (open-output-file file-name)))
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(write-list-to-port assembly-insts port)
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(display "[")
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(display file-name)
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(display "]\n")
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(close-output-port port)))
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; Uncomment the following lines to write the assembly code for the to methods
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; into files.
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;(compile-to-file
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; '(define (factorial n)
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; (if (= n 1)
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; 1
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; (* (factorial (- n 1)) n)))
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; 'val 'next "factorial.sicp-asm")
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;
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;; reset label counter to the same labels for diff
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;(define label-counter 0)
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;
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;(compile-to-file
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; '(define (factorial-alt n)
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; (if (= n 1)
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; 1
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; (* n (factorial-alt (- n 1)))))
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; 'val 'next "factorial-alt.sicp-asm")
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; $ diff factorial.sicp-asm factorial-alt.sicp-asm
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; 33,36c33,34
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; < (assign val (op lookup-variable-value) (const n) (reg env))
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; < (assign argl (op list) (reg val))
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; < (save argl)
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; ---
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; > (save env)
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; > (assign proc (op lookup-variable-value) (const factorial-alt) (reg env))
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; 63c61,63
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; < (restore argl)
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; ---
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; > (assign argl (op list) (reg val))
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; > (restore env)
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; > (assign val (op lookup-variable-value) (const n) (reg env))
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(display "\nex-5.34\n")
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;(display "\nex-5.35\n")
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(display "\nex-5.35\n")
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@ -12,7 +12,7 @@
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;;;;Then you can compile Scheme programs as shown in section 5.5.5
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;;**implementation-dependent loading of syntax procedures
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(load "ch5-syntax.scm") ;section 4.1.2 syntax procedures
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(load "misc/ch5-syntax.scm") ;section 4.1.2 syntax procedures
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;;;SECTION 5.5.1
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