You are to create a program in MARIE. You program will take the following list of numbers:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

and perform the following sequence of operations:

1. add them all up and store the answer
2. reverse them into another list
3. add the first (or original list) to the reversed list, item by item, and store the answer in a third list

Each of the above operations is to be implemented as a subroutine. There should be a main program that calls each of the subroutines in order.

Write your program. Run it within the MARIE environment. Turn in your listing, and include the results (show me that each subroutine worked correctly). Create a writeup explaining what is missing from the MARIE CPU architecture, th at is included in most every other real CPU architecture today, that makes this simple exercise more difficult in MARIE than it would be in a real CPU architecture. Create a gzip or zip file with these items and send it to the email in the syllabus.

 

That's nice.

 

Hello,

At post 5 of this thread I posted a couple of PDF's on marie code:
Help with program in MARIE assemby

Bertus

 

anybody please?

 

As a suggestion, start with a flow chart. That lets you see how the operations need to be performed to arrive at the result.

BTW - we are not a homework service. We will assist, but you must be the one to do the work. Programming may seem overwhelming at first, but it's just a list of stepwise instructions.

 

ok this is what I have. adding first 10 number.
ORG 100
Load Addr /address of first number to add
Store Next /this address is our next pointer
Load Num /load the number of items to be add
Subt One /decrement
Store Ctr /store this value in Ctr to control looping

Loop1, Load Sum /Load the sum in AC
AddI Next /Add the value pointed to by location Next
Store Sum /Store this sum
Add One /increment
Store Next /store in our pointer next
Load Ctr /load loop valiable
Subt One /subt one from loop value
Store Ctr /Store this new value in control variable
Skipcond 000 /if control value<0, skip next instruction
Jump Loop1 /go to loop
Output
Halt /terminate
Addr, Hex 117
Next, Hex 0
Num, Dec 10
Sum, Dec 0
Ctr, Hex 0
One, Dec 1

Dec 1
Dec 2
Dec 3
Dec 4
Dec 5
Dec 6
Dec 7
Dec 8
Dec 9
Dec 10


how do I do next steps?

 

Please use CODE tags around your program source code; otherwise the formatting gets goofed up.
Use the "Go Advanced" button. The "code tags" are pasted in when you click the # icon on the menu above the box.

ok this is what I have. adding first 10 number.

ORG	100
Load	Addr	/address of first number to add
Store	Next	/this address is our next pointer
Load	Num	/load the number of items to be add
Subt	One	/decrement
Store	Ctr	/store this value in Ctr to control looping

Loop1,	Load	Sum	/Load the sum in AC
	AddI	Next	/Add the value pointed to by location Next
	Store	Sum	/Store this sum
	Add	One	/increment
	Store	Next	/store in our pointer next
	Load	Ctr	/load loop valiable
	Subt	One	/subt one from loop value
	Store	Ctr	/Store this new value in control variable
	Skipcond 000	/if control value<0, skip next instruction
	Jump	Loop1	/go to loop
	Output
	Halt		/terminate
Addr,	Hex	117
Next,	Hex	0
Num,	Dec	10
Sum,	Dec	0
Ctr,	Hex	0
One,	Dec	1
	
	Dec	1
	Dec	2
	Dec	3
	Dec	4
	Dec	5
        Dec	6
	Dec	7
	Dec	8
	Dec	9
	Dec	10

how do I do next steps?