(define (make-core core-size initial-instr)
(let ((core-vec (make-vector core-size '()))
(names-vec (make-vector core-size '())))
+ (define (norm-addr i)
+ (if (< i 0)
+ (norm-addr (+ i core-size))
+ (modulo i core-size)))
+ (define (norm-ref v i)
+ (vector-ref v (norm-addr i)))
+ (define (norm-set! v i x)
+ (vector-set! v (norm-addr i)
+ (if (integer? x)
+ (norm-addr x)
+ x)))
(let loop ((i 0))
(unless (>= i core-size)
(vector-set! core-vec i (initial-instr 'make-copy))
(lambda args
(match args
((i 'set-from! j n)
- ((vector-ref core-vec i) 'set-from! (vector-ref core-vec j))
- (vector-set! names-vec i n))
+ ((norm-ref core-vec i) 'set-from! (norm-ref core-vec j))
+ (norm-set! names-vec i n))
((i 'set-from-instr! instr n)
- ((vector-ref core-vec i) 'set-from! instr)
- (vector-set! names-vec i n))
+ ((norm-ref core-vec i) 'set-from! instr)
+ (norm-set! names-vec i n))
((i 'set! v x n)
- ((vector-ref core-vec i) 'set! v x)
- (vector-set! names-vec i n))
- ((i 'name) (vector-ref names-vec i))
- ((i v) ((vector-ref core-vec i) v))
+ ((norm-ref core-vec i) 'set! v x)
+ (norm-set! names-vec i n))
+ ((i 'name) (norm-ref names-vec i))
+ (((? integer? i) v) ((norm-ref core-vec i) v))
+ (('->addr (? integer? i)) (norm-addr i))
(('dump)
(let loop ((i 0))
(unless (>= i core-size)
(unless (null? n)
(print* "\t;" n)))
(print)
- (loop (+ i 1)))))))))
+ (loop (+ i 1)))))
+ (('size) core-size)))))
-(define (addr+ . args)
- (foldl (lambda (a b)
- (modulo (+ a b core-size) core-size))
- 0 args))
;;; Programmes and task queues
;;
(instrs (prog-instrs prog)))
(unless (null? instrs)
(core ptr 'set-from-instr! (car instrs) (prog-name prog))
- (loop (addr+ ptr 1) (cdr instrs))))
+ (loop (core '->addr (+ ptr 1)) (cdr instrs))))
(make-queue (prog-name prog)
- (addr+ addr (prog-offset prog))))
+ (core '->addr (+ addr (prog-offset prog)))))
(define (can-install-prog? core prog-len addr)
(let loop ((ptr addr)
(if (= remaining 0)
#t
(if (null? (core ptr 'name))
- (loop (addr+ ptr 1)
+ (loop (core '->addr (+ ptr 1))
(- remaining 1))
#f))))
(progs-left progs))
(if (null? progs-left)
queues
- (let ((addr (pseudo-random-integer core-size))
+ (let ((addr (pseudo-random-integer (core 'size)))
(prog (car progs-left)))
(if (can-install-prog? core (length (prog-instrs prog)) addr)
(loop (cons (install-prog core prog addr) queues)
(if (eq? modifier 'I)
(core B-ptr 'set-from! A-ptr name)
(combine-and-store core A-ptr B-ptr modifier name (lambda (x y) y)))
- (list (addr+ ptr 1)))
+ (list (core '->addr (+ ptr 1))))
((ADD)
- (combine-and-store core A-ptr B-ptr modifier name addr+)
- (list (addr+ ptr 1)))
+ (combine-and-store core A-ptr B-ptr modifier name +)
+ (list (core '->addr (+ ptr 1))))
((SUB)
- (combine-and-store core A-ptr B-ptr modifier name
- (lambda (x y) (addr+ x (- y))))
- (list (addr+ ptr 1)))
+ (combine-and-store core A-ptr B-ptr modifier name -)
+ (list (core '->addr (+ ptr 1))))
((MUL)
- (combine-and-store core A-ptr B-ptr modifier name
- (lambda (x y) (modulo (* (addr+ x core-size)
- (addr+ y core-size))
- core-size)))
- (list (addr+ ptr 1)))
+ (combine-and-store core A-ptr B-ptr modifier name *)
+ (list (core '->addr (+ ptr 1))))
((DIV)
(condition-case
(begin
- (combine-and-store core A-ptr B-ptr modifier name
- (lambda (x y) (quotient (addr x core-size)
- (addr y core-size))))
- (list (addr+ ptr 1)))
+ (combine-and-store core A-ptr B-ptr modifier name quotient)
+
+ (list (core '->addr (+ ptr 1))))
((exn arithmetic) '())))
((MOD)
(condition-case
(begin
- (combine-and-store core A-ptr B-ptr modifier name
- (lambda (x y) (remainder (addr x core-size)
- (addr y core-size))))
- (list (addr+ ptr 1)))
+ (combine-and-store core A-ptr B-ptr modifier name modulo)
+ (list (core '->addr (+ ptr 1))))
((exn arithmetic) '())))
((JMP)
- (list (addr+ ptr (core A-ptr 'A-num))))
+ (list (core '->addr (+ ptr (core A-ptr 'A-num)))))
((JMZ)
- (list (addr+ ptr (if (instr-zero? B-ptr modifier #f name)
- (core A-ptr 'A-num)
- 1))))
+ (list (core '->addr (+ ptr (if (instr-zero? B-ptr modifier #f name)
+ (core A-ptr 'A-num)
+ 1)))))
((JMN)
- (list (addr+ ptr (if (not (instr-zero? B-ptr modifier #f name))
- (core A-ptr 'A-num)
- 1))))
+ (list (core '->addr (+ ptr (if (not (instr-zero? B-ptr modifier #f name))
+ (core A-ptr 'A-num)
+ 1)))))
((DJN)
- (list (addr+ ptr (if (not (instr-zero? B-ptr modifier #t name))
- (core A-ptr 'A-num)
- 1))))
+ (list (core '->addr (+ ptr (if (not (instr-zero? B-ptr modifier #t name))
+ (core A-ptr 'A-num)
+ 1)))))
((SEQ CMP)
- (list (addr+ ptr (if (compare-instrs core A-ptr B-ptr modifier =) 2 1))))
+ (list (core '->addr (+ ptr (if (compare-instrs core A-ptr B-ptr modifier =) 2 1)))))
((SNE)
- (list (addr+ ptr (if (compare-instrs core A-ptr B-ptr modifier =) 1 2))))
+ (list (core '->addr (+ ptr (if (compare-instrs core A-ptr B-ptr modifier =) 1 2)))))
((SLT)
- (list (addr+ ptr (if (compare-instrs core A-ptr B-ptr modifier <) 2 1))))
+ (list (core '->addr (+ ptr (if (compare-instrs core A-ptr B-ptr modifier <) 2 1)))))
((SPL)
- (list (addr+ ptr 1) (addr+ ptr (core A-ptr 'A-num))))
+ (list (core '->addr (+ ptr 1) (core '->addr (+ ptr (core A-ptr 'A-num))))))
((NOP)
- (list (addr+ ptr 1)))
+ (list (core '->addr (+ ptr 1))))
(else
(error "Unrecognised opcode" (instr 'opcode))))))
(define (instr-zero? core ptr modifier decrement name)
(case modifier
((A AB)
- (if decrement (core ptr 'set! 'A-num (addr+ (core ptr 'A-num) -1) name))
+ (if decrement (core ptr 'set! 'A-num (- (core ptr 'A-num) 1) name))
(= 0 (core ptr 'A-num)))
((A AB)
- (if decrement (core ptr 'set! 'B-num (addr+ (core ptr 'B-num) -1) name))
+ (if decrement (core ptr 'set! 'B-num (- (core ptr 'B-num) 1) name))
(= 0 (core ptr 'B-num)))
((X I F)
(if decrement
(begin
- (core ptr 'set! 'A-num (addr+ (core ptr 'A-num) -1) name)
- (core ptr 'set! 'B-num (addr+ (core ptr 'B-num) -1) name)))
+ (core ptr 'set! 'A-num (- (core ptr 'A-num) 1) name)
+ (core ptr 'set! 'B-num (- (core ptr 'B-num) 1) name)))
(and (= 0 (core ptr 'A-num))
(= 0 (core ptr 'B-num))))))
(f (core B-ptr 'B-num) (core A-ptr 'A-num)) name))))
(define (eval-operand core mode num ptr name)
- (addr+ ptr
- (case mode
- ((immediate) 0)
- ((direct) num)
- ((indirect-A) (addr+ num (core (addr+ ptr num) 'A-num)))
- ((indirect-B) (addr+ num (core (addr+ ptr num) 'B-num)))
- ((pre-indirect-A)
- (let ((aux-ptr (addr+ ptr num)))
- (core aux-ptr 'set! 'A-num (addr+ -1 (core aux-ptr 'A-num)) name)
- (addr+ num (core aux-ptr 'A-num))))
- ((pre-indirect-B)
- (let ((aux-ptr (addr+ ptr num)))
- (core aux-ptr 'set! 'B-num (addr+ -1 (core aux-ptr 'B-num)) name)
- (addr+ num (core aux-ptr 'B-num))))
- ((post-indirect-A)
- (let* ((aux-ptr (addr+ ptr num))
- (old-A-num (core aux-ptr 'A-num)))
- (core aux-ptr 'set! 'A-num (addr+ 1 (core aux-ptr 'A-num)) name)
- (addr+ num old-A-num)))
- ((post-indirect-B)
- (let* ((aux-ptr (addr+ ptr num))
- (old-B-num (core aux-ptr 'B-num)))
- (core aux-ptr 'set! 'B-num (addr+ 1 (core aux-ptr 'B-num)) name)
- (addr+ num old-B-num)))
- (else
- (error "Unrecognized mode" mode)))))
+ (core '->addr (+ ptr
+ (case mode
+ ((immediate) 0)
+ ((direct) num)
+ ((indirect-A) (+ num (core (+ ptr num) 'A-num)))
+ ((indirect-B) (+ num (core (+ ptr num) 'B-num)))
+ ((pre-indirect-A)
+ (let ((aux-ptr (+ ptr num)))
+ (core aux-ptr 'set! 'A-num (- (core aux-ptr 'A-num) 1) name)
+ (+ num (core aux-ptr 'A-num))))
+ ((pre-indirect-B)
+ (let ((aux-ptr (+ ptr num)))
+ (core aux-ptr 'set! 'B-num (- (core aux-ptr 'B-num) 1) name)
+ (+ num (core aux-ptr 'B-num))))
+ ((post-indirect-A)
+ (let* ((aux-ptr (+ ptr num))
+ (old-A-num (core aux-ptr 'A-num)))
+ (core aux-ptr 'set! 'A-num (+ (core aux-ptr 'A-num) 1) name)
+ (+ num old-A-num)))
+ ((post-indirect-B)
+ (let* ((aux-ptr (+ ptr num))
+ (old-B-num (core aux-ptr 'B-num)))
+ (core aux-ptr 'set! 'B-num (+ (core aux-ptr 'B-num) 1) name)
+ (+ num old-B-num)))
+ (else
+ (error "Unrecognized mode" mode))))))
;;; Main procedure
;;
The Lambda Lab / projects / jars.git / blobdiff