代写代考 DATA 300

Solution to UA1
;Program UA1
;This program implements the following initialisations ; a=5
; if(x<10) Copyright By PowCoder代写 加微信 powcoder

;if (x<10) R1,10[R0] R2,x{R0] R3,R2,R1 R3,ELSE[R0] R1,3[R0] R1,y[R0] ENDIF{R0} ;set constant 5 ;assign 5 to a ;set constant 10 ;retrieve x ;If NOT (x < 10) ;go to else ;set constant 3 ;assign 3 to y ;exit IF ;set constant 4 ;assign 4 to z ;set constant 6 ;assign 6 to b ;Finish ;if x < 10 set y = LEA STORE JUMP ;if x >=10 set z=4 ELSE LEA
;Using statement by statement style here let¡¯s use R1 for all initialisations. If part of larger program, register variable might be better.
;Data Area. Reserve space for variables used but all except x are initialised by the code
Systems and Networks
;only variable input to this fragment
6 Control Structures 13

Solution to UA2
;Program sumsum
;This program doubles sum from initial value 1 until it exceeds limit. ;
; limit = 300
; while (sum < limit) ; { sum = sum + sum} ;Assignment to registers as follows: ; R1 = sum ; R2 = limit ; R3 for temporary boolean ; Initialise registers LOAD R1,sum[R0] LOAD R2,limit[R0] ;Load value of limit ;While loop WHILE CMPLT JUMPF R3,OUT[R0] ADD R1,R1,R1 JUMP WHILE[R0] ;Exit loop and store result ;If sum >=limit
;exit loop
;sum = 2 x sum
;Store result
OUT STORE TRAP
R1,sum[R0]
sum DATA 1 limit DATA 300
Systems and Networks
6 Control Structures 14
;Load initial value of sum

;Program: factorial.
;This program computes n! (factorial).
; HLL algorithm
for (i = 1; i<=n; i++) { x = x * i; } ;Assignment to registers as follows: ; R1 = constant 1 ; R5 for temporary boolean ; Initialise registers ; For loop follows FORLOOP LEA LEA LOAD LEA CMPGT JUMPT MUL ADD JUMP R1,1[R0] R2,1[R0] R3,n[R0] R4,1[R0] R5,R2,R3 R5,OUT[R0] R4,R4,R2 R2,R2,R1 FORLOOP[R0] R4,x[R0] R0,R0,R0 ;R1 = 1 (constant) ;i=1 ; EXIT Loop ;x = x*i ;i = i + 1 ;Loop again ; Store x ; Finish ; Exit Loop and store result. OUT STORE TRAP ;Data Area n DATA x DATA Systems and Networks 6 Control Structures 15 Solution to UA3 程序代写 CS代考 加微信: powcoder QQ: 1823890830 Email: powcoder@163.com