;;; Constants
;;
-(define core-size 8000)
+(define core-size 20)
(define max-steps 10000)
;;; Instructions
;;
-(define ((blah x y) . args)
- (match args
- (('x q) (+ x q) q)
- (('y q) y)))
-
(define ((make-instr opcode modifier A-mode A-num B-mode B-num name) . args)
(match args
(('copy n) (make-instr opcode modifier A-mode A-num B-mode B-num n))
+ (('copy-from! other n)
+ (set! opcode (other 'opcode))
+ (set! modifier (other 'modifier))
+ (set! A-mode (other 'A-mode))
+ (set! A-num (other 'A-num))
+ (set! B-mode (other 'B-mode))
+ (set! B-num (other 'B-num))
+ (set! name n))
(('opcode) opcode)
(('modifier) modifier)
(('A-mode) A-mode)
(('B-num) B-num)
(('name) name)
(('print) (print opcode
- (if (null? modifier) "" (concat "." modifier))
+ "." modifier
" " (mode-string A-mode) A-num
", " (mode-string B-mode) B-num
- (if (null? name) "" (concat " ; " name))))
+ (if (null? name) "" (conc " ; " name))))
(('set-opcode! x n) (set! opcode x) (set! name n))
(('set-modifier! x n) (set! modifier x) (set! name n))
(('set-A-mode! x n) (set! A-mode x) (set! name n))
(define (mode-string mode)
(case mode
((immediate) "#")
- ((direct) "")
+ ((direct) "$")
((indirect-A "*"))
((indirect-B "@"))
((pre-indirect-A "{"))
((post-indirect-B ">"))))
(define initial-instruction
- (make-instr 'DAT '() 'immediate 0 'immediate 0 '()))
+ (make-instr 'DAT 'F 'immediate 0 'immediate 0 '()))
+
;;; Memory setup and addressing
;;
(define core (make-vector core-size '()))
+(define (core-get i)
+ (vector-ref core i))
+
+(define (core-set! i x)
+ (vector-set! core i x))
+
(define (initialize-core)
(let loop ((i 0))
- (unless (< i core-size)
- (vector-set! core i (initial-instruction 'copy '()))
+ (unless (>= i core-size)
+ (core-set! i (initial-instruction 'copy '()))
+ (loop (+ i 1)))))
+
+(define (core-dump)
+ (let loop ((i 0))
+ (unless (>= i core-size)
+ ((core-get i) 'print)
(loop (+ i 1)))))
(define (addr+ . args)
;;
(define (make-prog name instrs offset)
- (list name instructions offset))
+ (list name instrs offset))
(define (prog-name prog) (list-ref prog 0))
(define (prog-instrs prog) (list-ref prog 1))
(let loop ((ptr addr)
(instrs (prog-instrs prog)))
(unless (null? instrs)
- (vector-set! core ptr (instr-copy (car instrs)))
+ (core-set! ptr ((car instrs) 'copy (prog-name prog)))
(loop (addr+ ptr 1) (cdr instrs))))
(make-player (prog-name prog)
(addr+ addr (prog-offset prog))))
(remaining prog-len))
(if (= remaining 0)
#t
- (if ((vector-ref core ptr) 'name)
- #f
+ (if (null? ((core-get ptr) 'name))
(loop (addr+ ptr 1)
- (- remaining 1))))))
+ (- remaining 1))
+ #f))))
(define (install-progs progs)
(let loop ((players '())
(define (make-player name ptr)
(list name ptr))
+(define (player-name player) (car player))
+(define (player-ptrs player) (cdr player))
+
(define (player-set-ptrs! player ptrs)
(set-cdr! prog-queue ptrs))
(let ((player (car players))
(other-players (cdr players))
(ptrs (player-ptrs player)))
- (let ((new-ptrs (execute-instr (car ptrs))))
+ (let ((new-ptrs (execute-instr (car ptrs) (player-name player))))
(if (null? new-ptrs)
(run other-players (+ step 1))
(begin
(player-set-ptrs! (append (cdr ptrs) new-ptrs))
(run (append other-players (list player)) (+ step 1)))))))))
-(define (execute-instr ptr)
- (let* ((instr (vector-ref core ptr))
- (A-pointer (eval-operand (instr-A-mode instr) (instr-A-num) ptr))
- (B-pointer (eval-operand (instr-B-mode instr) (instr-B-num) ptr))
+(define (execute-instr ptr name)
+ (let* ((instr (core-get ptr))
+ (A-pointer (eval-operand (instr 'A-mode) (instr 'A-num) ptr))
+ (B-pointer (eval-operand (instr 'B-mode) (instr 'B-num) ptr))
(modifier (instr-modifier instr)))
(case (instr-opcode instr)
((DAT) '()) ;Game over, man, game over!
- ((MOV))
- ((ADD))
- ((SUB))
+ ((MOV)
+ (case modifier
+ ((A) ((core-get B-pointer) 'set-A-num! ((core-get A-pointer) 'A-num) name))
+ ((B) ((core-get B-pointer) 'set-B-num! ((core-get A-pointer) 'B-num) name))
+ ((AB) ((core-get B-pointer) 'set-B-num! ((core-get A-pointer) 'A-num) name))
+ ((BA) ((core-get B-pointer) 'set-A-num! ((core-get A-pointer) 'B-num) name))
+ ((F) ((core-get B-pointer) 'set-A-num! ((core-get A-pointer) 'A-num) name)
+ ((core-get B-pointer) 'set-B-num! ((core-get A-pointer) 'B-num) name))
+ ((X) ((core-get B-pointer) 'set-A-num! ((core-get A-pointer) 'B-num) name)
+ ((core-get B-pointer) 'set-B-num! ((core-get A-pointer) 'A-num) name))
+ ((I) ((core-get B-pointer) 'copy-from! (core-get A-pointer) name)))
+ (list (addr+ ptr 1)))
+ ((ADD)
+ (case modifier
+ ((A))
+ ((B))
+ ((AB))
+ ((BA))
+ ((F))
+ ((X))))
+ ((SUB)
+ (case modifier
+ ((A))
+ ((B))
+ ((AB))
+ ((BA))
+ ((F))
+ ((X))))
((MUL))
((DIV))
((MOD))
((JMP))
+ ((JMZ))
((JMN))
((DJN))
((SEQ CMP))
((SNE))
((SLT))
((SPL))
- ((NOP))
+ ((NOP) (list (addr+ ptr 1)))
(else
(error "Unrecognised opcode" (instr-opcode instr))))))
(case mode
((immediate) 0)
((direct) num)
- ((indirect-A) (addr+ num (instr-A-num (vector-ref core (addr+ ptr num)))))
- ((indirect-B) (addr+ num (instr-B-num (vector-ref core (addr+ ptr num)))))
+ ((indirect-A) (addr+ num ((core-get (addr+ ptr num)) 'A-num)))
+ ((indirect-B) (addr+ num ((core-get (addr+ ptr num)) 'B-num)))
((pre-indirect-A)
- (let ((aux-instr (vector-ref core (addr+ ptr num))))
- (instr-set-A-num! aux-instr (addr+ -1 (instr-A-num aux-instr)))
- (addr+ num (instr-A-num aux-instr))))
+ (let ((aux-instr (core-get (addr+ ptr num))))
+ (instr-set-A-num! aux-instr (addr+ -1 (aux-instr 'A-num)))
+ (addr+ num (aux-instr 'A-num))))
((pre-indirect-B)
- (let ((aux-instr (vector-ref core (addr+ ptr num))))
- (instr-set-B-num! aux-instr (addr+ -1 (instr-B-num aux-instr)))
- (addr+ num (instr-B-num aux-instr))))
+ (let ((aux-instr (core-get (addr+ ptr num))))
+ (instr-set-B-num! aux-instr (addr+ -1 (aux-instr 'B-num)))
+ (addr+ num (aux-instr 'B-num))))
((post-indirect-A)
- (let* ((aux-instr (vector-ref core (addr+ ptr num)))
- (old-A-num (instr-A-num aux-instr)))
- (instr-set-A-num! aux-instr (addr+ 1 (instr-A-num aux-instr)))
+ (let* ((aux-instr (core-get (addr+ ptr num)))
+ (old-A-num (aux-instr 'A-num)))
+ (instr-set-A-num! aux-instr (addr+ 1 (aux-instr 'A-num)))
(addr+ num old-A-num)))
((post-indirect-B)
- (let* ((aux-instr (vector-ref core (addr+ ptr num)))
- (old-B-num (instr-B-num aux-instr)))
- (instr-set-B-num! aux-instr (addr+ 1 (instr-B-num aux-instr)))
+ (let* ((aux-instr (core-get (addr+ ptr num)))
+ (old-B-num (aux-instr 'B-num)))
+ (instr-set-B-num! aux-instr (addr+ 1 (aux-instr 'B-num)))
(addr+ num old-B-num)))
(else
(error "Unrecognized mode" mode)))))
The Lambda Lab / projects / jars.git / blobdiff