I need to know how to define key groups for the 83+. I've looked in ti83plus.inc and the .pdf documents that came with the 83+ SDK, but I can't find how to define them anywhere. Tutorial 14 of ASM Guru tells how to define key groups on the 83, but aren't memory adresses different on the 83+?
Key groups aren't memory addresses, they're values inputted and outputted to the keyboard's microcontroller. Bottom line, you can use the TI-83 values from ASMGuru. If you'd prefer more TI-83+ specific info (even though it's the same) try ASM in 28 Days./
The program assembled without errors, but then I sent it to PTI and either the program froze when I executed it or keypress isn't being detected.
Here's how groups were used in ASM Guru (from Tutorial 14):
Code:
Here's some of the code I assembled and executed:
Code:
I couldn't find anything on key groups in ASM in 28 Days though.
Here's how groups were used in ASM Guru (from Tutorial 14):
Code:
Keys:
ld a,0ffh ;resets the keypad.
out (1),a ;'Required syntax' :)
ld a,0feh ;Enable group 1.
out (1),a
in a,(1) ;'Required Syntax'
cp kDown
jp z,down
ld a,0ffh ;Reset keypad again.
out (1),a
ld a,0fdh ;Enable group 2.
out (1),a
in a,(1)
cp kEnter
jp z,Enter
jp nz,keysHere's some of the code I assembled and executed:
Code:
Looper:
ld a,0ffh ;reset key groups
out (1),a
ld a,0feh ;group 1
out (1),a
in a,(1)
cp $04
jr z,Up
cp $03
jr z,Right
cp $01
jr z,Down
cp $02
jr z,Left
ld a,0fdh ;group 2
out (1),a
in a,(1)
cp $0F
jp z,Exit I couldn't find anything on key groups in ASM in 28 Days though.
direct input (key groups) discussed right here in learn asm in 28 days -> http://nwps.ws/~dragonfire/Asmin28/lesson/day22.html <-
Liazon wrote:
shouldn't the # of nops go to 6 in hyper SE mode? just wondering
*5. 15 MHz / 6MHz = 5/2. 2*(5/2) = 5 nops. Quote:
direct input (key groups) discussed right here in learn asm in 28 days -> http://nwps.ws/~dragonfire/Asmin28/lesson/day22.html <-
Thanks Kllrnohj, it worked.
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