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Hi anyone. I want to make a lookup table in my program. At the first I wanted to make it with LOOKUP. But I want to use program memory instead of RAM. So I think
that LOOKUP instruction can't help me in this regard! I make this lookup table in asm:
ASM
TABLE
ADDWF 02,1
RETLW 0X01
RETLW 0X02
RETLW 0X04
RETLW 0X08
RETLW 0X10
RETLW 0X20
RETLW 0X40
.
.
.
RETLW 0X80
ENDASM
END
I recall table with CALL TABLE. Unfortunately it doesn't work. Why? What should I do? Thanks for helpful replies.
Hi,
PEEKCODE and POKECODE should do it nicely ... just read the manual ...
Alain
also find this excellent thread started by Melanie
"Making Program Code Space your playground"
Hi yasser,
What precisely are you trying to do? PBP does not use RAM to create lookup tables except for the index & result variables.
Hi and thanks for your replies. I visited above links. I want to save data on program memory space and send them to LEDs byte by bytes. This is a part of my program:
Send:
StrAddr = $370
for j = 0 to 2
CharAddr = StrAddr + (80*j)
for k = 0 to 79
PeekCode CharAddr+k, x
GOSUB DISPLAY
next k
next j
RETURN
Send_Back:
StrAddr = $460
for j = 2 to 0 step -1
CharAddr = StrAddr + (80*j)
for k = 79 to 0 STEP -1
PeekCode CharAddr+k, x
GOSUB DISPLAY
next k
next j
RETURN
'************************************************* ****************
' Introduction of Image *
'************************************************* ****************
@ org 370h
Pokecode $00,$00,$00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$0 1,$01,$01,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00, $00,$00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$01,$0 1,$01,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00,$00, $00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$01,$01,$0 1,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00,$00,$00, $00,$01,$01,$01,$03
Pokecode $00,$00,$00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$0 1,$01,$01,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00, $00,$00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$01,$0 1,$01,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00,$00, $00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$01,$01,$0 1,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00,$00,$00, $00,$01,$01,$01,$03
Pokecode $00,$00,$00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$0 1,$01,$01,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00, $00,$00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$01,$0 1,$01,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00,$00, $00,$00,$01,$01,$01,$03,$00,$00,$00,$00,$01,$01,$0 1,$03,$00,$00,$00,$00,$01,$01,$01,$03,$00,$00,$00, $00,$01,$01,$01,$03
-------------------------------------------
It doesn't work. Why?
Can you tell me about DB usage? How can I use it? I used ASM code (as I said above). Why didn't it work correct?
Thanks alot
Thanks all.
Regards