I'm such a dork. I got something right.

[mighmos]

I just coded my first real assignment for Computer Science 261: Computer Organization and Assembly. I had to write a program ... in assembly that would computer the sum of an integer. Like 6 = 21. (6+5+4+3+2+1 = 21). I got it done -- on my first try. I'm such a dork.

PS: Its SPARC assembly.

Comments

[lady_of_spain]

Dude, I can write that in scheme.

(define sum-integer
(lambda (num acc)
(cond
((= num 0) acc)
(else (sum-integer (- num 1) (+ num acc))))))

Tail recursion ftw.

[mighmos]

Wow. I had no idea... mine went something like this:

.global main
main: save %sp, -64, %sp
!clr %l1
mov 1, %l1
clr %l0

test: cmp %l1, 6
ble,a loop
add %l1, %l0, %l0
ba,a finish

loop: !add %l1, %l0, %l0 ! Here for sanity's sake
ba test ! Silly prefetching
add 1, %l1, %l1

finish: mov 1, %g1
nop
ta 0

[lady_of_spain]

Hmmm....scheme definitely looks easier. I'm learning C++ next semester, though.