assembly programming sucks
- Thread starter Mday
- Start date
pillage2001
Lifer
- Sep 18, 2000
- 14,038
- 1
- 81
haha i like assembly... its interesting to see all the lower level stuff at work... it does get really tedious as the programming projects get larger and more complex however
pillage2001
Lifer
- Sep 18, 2000
- 14,038
- 1
- 81
compare this...branch here...branch there......w00000t w0000000t......overflow......BOOomm...the crystal on the EVb flies out.w00000000t
Arg, memories of learning assembly. Cafeteria tray dispenser was the only way I could remember this certain kind of data structure. 6 months later, I forget all the assembly I learned, but still remember the joy of accomplishment of getting hardware to multiply two numbers and accept input from a keyboard...
By the way, what chip are you programming for? At my school, EE's use the Motorola MC68000, while the CPE's use MIPS.
SunnyD
Belgian Waffler
It ain't half bad provided you know what you're doing.
It's also a VERY useful skill to have if you plan on landing a job out of college.
It's also a VERY useful skill to have if you plan on landing a job out of college.
Analog
Lifer
- Jan 7, 2002
- 12,755
- 3
- 0
ex_code SEGMENT ; Beginning of the code segment
org 0150h ; originate code at 0250h as the SDK sees it
; remember, the SDK adds 100h to our addresses
;
Begin: mov ax,0010h ; point to beginning of data segment
mov ds,ax ; initialize ds register
mov ax,0010h ; point to beginning of stack segment
mov ss,ax ; set the ss register
mov sp, offset st_top ; initialize the sp for empty stack
;
call cdisp ; clear display
kbdrt: mov al,40h ; setup control code for keys
mov dx,cntrl ; dx = cntrl for 8279
out dx,al ; do it
next: in al,dx ; check if key is pressed
and al,0Fh ; mask lower nibble
jz next ; jump back if nothing there
mov dx,buffer ; key pressed, read buffer
in al,dx ; read it
cmp al,0dh ; check to see if D is pressed
je dpress ; yes it did
cmp al,0ch ; check to see if C is pressed
je cpress ; yes it did
cmp al,0eh ; check to see if E is pressed
je epress ; yes it did
jmp kbdrt ; go back since invalid key pressed
org 0150h ; originate code at 0250h as the SDK sees it
; remember, the SDK adds 100h to our addresses
;
Begin: mov ax,0010h ; point to beginning of data segment
mov ds,ax ; initialize ds register
mov ax,0010h ; point to beginning of stack segment
mov ss,ax ; set the ss register
mov sp, offset st_top ; initialize the sp for empty stack
;
call cdisp ; clear display
kbdrt: mov al,40h ; setup control code for keys
mov dx,cntrl ; dx = cntrl for 8279
out dx,al ; do it
next: in al,dx ; check if key is pressed
and al,0Fh ; mask lower nibble
jz next ; jump back if nothing there
mov dx,buffer ; key pressed, read buffer
in al,dx ; read it
cmp al,0dh ; check to see if D is pressed
je dpress ; yes it did
cmp al,0ch ; check to see if C is pressed
je cpress ; yes it did
cmp al,0eh ; check to see if E is pressed
je epress ; yes it did
jmp kbdrt ; go back since invalid key pressed
yeah, i hate circuit analysis too. Assembly isn't ALWAYS bad... what architecture? MIPS assembly is soooo easy
Originally posted by: CTho9305
yeah, i hate circuit analysis too. Assembly isn't ALWAYS bad... what architecture? MIPS assembly is soooo easy
Yeah, I love MIPS too. I hope that we are done with it. We had a test on it and I have decided that it is not something I will ever use in my future career. If I do find myself using it, I am in the wrong career. It really makes it easy when you have to write assembly with no way to compile/run it and hardly any sample codes.
TRENDING THREADS
-
Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)- Started by DisEnchantment
- Replies: 25K
-
Discussion Intel Meteor, Arrow, Lunar & Panther Lakes + WCL Discussion Threads
- Started by Tigerick
- Replies: 23K
-
Discussion Intel current and future Lakes & Rapids thread- Started by TheF34RChannel
- Replies: 23K
-
-
Facebook
Twitter