What is an ideal Windows 98 laptop? - Assembly Coding

;*****************************************************
;---------------------- STACK FIX --------------------
;*****************************************************
STACK_FIX PROC NEAR
MOV BX, [SI+2] ; Move the content of si+2 into bx
MOV LOC, SP; save the location of stack pointer
MOV SP, 500H; move to a clean memory location
ADD SP, CX ; CX initially = 0 This counts up so i dont overwrite what I have pushed on the stack
PUSH BX ; stack goes down 2
INC CX; I increment cx twice so on the next run bx will be pushed to memory location 500, then it will run again going to 502,504,506 ect
INC CX
MOV SP,LOC; mov the stack pointer back the original memory location
RET
STACK_FIX ENDP
*********************************************************
Am I not allowed to do this? I've been working on this for 8 hours straight.
I then later call a procedure that pops the info off the stack starting at 500h. It doesn't return the values that were in bx that i pushed on the stack.

thanks

 

tried hyper-v?

 

When you push, SP is decremented before the value is actually moved onto the stack. Your value is hence at 0x4FE.

I don't understand the part of your code that deals with cx. If you do not ever save it, where does its value come into effect?

 

I use the CX register to account for the stack pointer moving down. Yes, On the first run my SP goes to 04fe. The next run CX is 2. So SP will be 0502 then after the push Bx it will be at 0500. The next run CX=4 so SP=0504. The Push BX will move SP 0502. If I didn't increment CX I would keep over writing my content.

So when I want to look at these values later I will move my SP back to 04FE. Then POP the values until CX=0.

I am pushing 2 numbers onto the stack. So imagine my stack to look like this.

0508:3838
0506:3737
0504:3131
0502:3434
0500:3333
04FE:3535

When I try to POP these values later, I don't see anything resembling numbers in ASCII.

What's that?

 

It looks like it should work. You need to determine that your CX value is not being overwritten by other parts of your program, and that you are correctly loading your content into BX.