Programming Forums > Application Development > Assembly

Edgar. · Jun 28th, 2006, 5:11 PM

Hi I need to perform this:
Double the 2 smallest numbers and add that sum to the largest, but I need to know the smallest number from an input divice.

Edgar. · Jun 28th, 2006, 5:29 PM

DaWei can you help me?

Jimbo · Jun 28th, 2006, 5:33 PM

have you come up with an algorithm or some pseudo code yet?

Oh, and we don't always reply within 20 minutes of your post. Some of us do have other things going on than sitting here, refreshing every couple minutes, and hoping for a new thread.

Edgar. · Jun 28th, 2006, 5:39 PM

[HTML]
.code
getnum proc
@@Height:
mov dx,offset msg1 ;get Height
call pstring
call getdec ;make shure height are between 1 and 100
cmp ax,0
jz @@ok
cmp ax,1
jb @@bad
cmp ax,100
ja @@bad
jmp @@ok
@@bad:
mov dx,offset complain
call pstring
jmp @@Height
@@ok:
cmp ax,0
mov val1,ax
ret
getnum ENDP

next proc
@@Length:
mov dx,offset msg2 ;ger Length
call pstring
call getdec
cmp ax,0 ;make shure length is between 1 and 100
jz @@ok
cmp ax,1
jb @@bad
cmp ax,100
ja @@bad
jmp @@ok
@@bad:
mov dx,offset complain
call pstring
jmp @@Length
@@ok:
cmp ax,0
mov val2,ax
next ENDP ;if is right how can I know the smallest number? [/HTML]

DaWei · Jun 28th, 2006, 6:07 PM

The smallest number depends entirely upon your implementation (if you subscribe to the notion that negative numbers are smaller than zero, as I do). Each implementation usually has a header file defining the limits of such things. "Smallest" is a superlative. There cannot be two (different) 'smallest' numbers.

mrynit · Jun 28th, 2006, 8:25 PM

I dont know ASM but cant you make a list of the numbers then sort that list so the first or last numbers are the smallest and then grab those numbers? maybe try doing the ordering function in high level then porting it to ASM.

Wizard1988 · Jun 28th, 2006, 11:13 PM

You should take a look at this Instruction table. I have one printed and accesible at all times

tempest · Jun 29th, 2006, 12:11 AM

Quote:

Originally Posted by mrynit

I dont know ASM but cant you make a list of the numbers then sort that list so the first or last numbers are the smallest and then grab those numbers? maybe try doing the ordering function in high level then porting it to ASM.

When you know what you're looking for, a list is pointless. Keep only enough variables for what you want to end up with, and compare each new value to see if it should take the place of what's in the variables. At the end, you should end up with what you want.

mrynit · Jun 29th, 2006, 12:26 AM

yeah that right, i was just thinking more about order or numbers.

Jun 28th, 2006, 5:11 PM	#1
Edgar. Newbie Join Date: Jun 2006 Location: Bath Room Posts: 11 Rep Power: 0	smallest number.... Hi I need to perform this: Double the 2 smallest numbers and add that sum to the largest, but I need to know the smallest number from an input divice.

Jun 28th, 2006, 6:07 PM	#5
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	The smallest number depends entirely upon your implementation (if you subscribe to the notion that negative numbers are smaller than zero, as I do). Each implementation usually has a header file defining the limits of such things. "Smallest" is a superlative. There cannot be two (different) 'smallest' numbers. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Jun 28th, 2006, 8:25 PM	#6
mrynit Hobbyist Programmer Join Date: Mar 2006 Location: olympia,WA Posts: 332 Rep Power: 3	I dont know ASM but cant you make a list of the numbers then sort that list so the first or last numbers are the smallest and then grab those numbers? maybe try doing the ordering function in high level then porting it to ASM. __________________ i dont know much about programming but i try to help

Jun 29th, 2006, 12:26 AM	#9
mrynit Hobbyist Programmer Join Date: Mar 2006 Location: olympia,WA Posts: 332 Rep Power: 3	yeah that right, i was just thinking more about order or numbers. __________________ i dont know much about programming but i try to help

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Jun 28th, 2006, 5:29 PM	#2
Edgar. Newbie Join Date: Jun 2006 Location: Bath Room Posts: 11 Rep Power: 0	DaWei can you help me?

Jun 28th, 2006, 5:33 PM	#3
Jimbo Battle Programmer Join Date: Feb 2006 Location: Bellevue, WA, USA Posts: 742 Rep Power: 3	have you come up with an algorithm or some pseudo code yet? Oh, and we don't always reply within 20 minutes of your post. Some of us do have other things going on than sitting here, refreshing every couple minutes, and hoping for a new thread.

Jun 28th, 2006, 5:39 PM	#4
Edgar. Newbie Join Date: Jun 2006 Location: Bath Room Posts: 11 Rep Power: 0	[HTML] .code getnum proc @@Height: mov dx,offset msg1 ;get Height call pstring call getdec ;make shure height are between 1 and 100 cmp ax,0 jz @@ok cmp ax,1 jb @@bad cmp ax,100 ja @@bad jmp @@ok @@bad: mov dx,offset complain call pstring jmp @@Height @@ok: cmp ax,0 mov val1,ax ret getnum ENDP next proc @@Length: mov dx,offset msg2 ;ger Length call pstring call getdec cmp ax,0 ;make shure length is between 1 and 100 jz @@ok cmp ax,1 jb @@bad cmp ax,100 ja @@bad jmp @@ok @@bad: mov dx,offset complain call pstring jmp @@Length @@ok: cmp ax,0 mov val2,ax next ENDP ;if is right how can I know the smallest number? [/HTML]

Jun 28th, 2006, 11:13 PM	#7
Wizard1988 Professional Programmer Join Date: Oct 2005 Location: Chitown Posts: 414 Rep Power: 3	You should take a look at this Instruction table. I have one printed and accesible at all times

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Programming Forums > Application Development > Assembly

smallest number....