LCDout and large filesize 18F452 -> paging problem?

[skimask]

Ok, how about this code, and ONLY this code:

DEFINE LCD_BITS    4
DEFINE LCD_DREG   PORTD
DEFINE LCD_DBIT    0	
DEFINE LCD_RSREG PORTD
DEFINE LCD_RSBIT  4	
DEFINE LCD_EREG   PORTD	
DEFINE LCD_EBIT    5		
TRISD = %10000000
LED VAR portD.7
Lcdsub:  lcdout $FE,2,"hello" : lcdout $FE,C0,"world" : return
main:  LED=1 : gosub Lcdsub : pause 500 : LED=0 : pause 500 : goto Main
END

[mara]

> Ok, how about this code, and ONLY this code:

Well, I dunno.. BUT I got another question..

What would happen if IF-THEN-ELSE overlaps from memory-page to another? Is it allowed? Is pbp-compiler capable of handle veeeeery loooooong IF-THEN-ELSE structures (like 200lines long?) including gosubs from page to page? If not-should I get a warning? o:-)

[skimask]

> Ok, how about this code, and ONLY this code:
Well, I dunno.. BUT I got another question..
What would happen if IF-THEN-ELSE overlaps from memory-page to another? Is it allowed? Is pbp-compiler capable of handle veeeeery loooooong IF-THEN-ELSE structures (like 200lines long?) including gosubs from page to page? If not-should I get a warning? o:-)

I don't have any problem with what you're talking about, with 2.50a anyways. But quite frankly, I just avoid it altogether by just making the 'middle' of the If/Then another routine.
I've had some programs (one in particular), over 4300 lines long (and that's compacted with a lot of colons like I do often, uncompacted, figure roughly 13,000+ lines). Never had a problem with the amount of code inside of an If/Then, Select Case, While/Wend, or otherwise.

You tend to forget things like RETURN after a GOSUB, or maybe you RETURN from somewhere that you had GOTO'd instead of GOSUB'd. Keep that in mind. I just fixed a buried GOSUB (one of the drawbacks of 'compacting' source code) that would only show up after the loop went thru itself 32 times and ended up causing a stack overflow which killed my entire OS on the one project. I've been fighting it for over 6 months now.

And paging really isn't so much of an issue, moreso with 18F series PICs, and even moreso with PBP for the last few years.

[mara]

> You tend to forget things like RETURN after a GOSUB..

Yep, gosubs and if-then-else-endif structures are like women-
one has to be veeery careful with them.. o:-)

I downsized the code a little bit - any comments?

It works if naytto is low,
If naytto is high then portD.7 wont go high (except pulsout-command)

[skimask]

> You tend to forget things like RETURN after a GOSUB..
Yep, gosubs and if-then-else-endif structures are like women-
one has to be veeery careful with them.. o:-)
I downsized the code a little bit - any comments?
It works if naytto is low,
If naytto is high then portD.7 wont go high (except pulsout-command)

Yes, does the code in Post #6 work?

[mara]

> Yes, does the code in Post #6 work?
Well, did ya mean reversing direction-bit of portD.7?
I don't think it would resolve the problem-
in this case the problem is deepper-I think it is in compiler...
The code works ok, only the LCDout routine is causing problems..
(=jamming portD.7)

m.

[skimask]

> Yes, does the code in Post #6 work?
Well, did ya mean reversing direction-bit of portD.7?
I don't think it would resolve the problem-
in this case the problem is deepper-I think it is in compiler...
The code works ok, only the LCDout routine is causing problems..
(=jamming portD.7)

m.

Ok, typo on my part...
TRISD = %10000000 should have been
TRISD = $40

Did it work or not?

Looking at your program as a whole, I think the problem is that the LED is actually coming on, but that it flickers too fast for you to see it. With the pulsout, you are seeing a .13 second pulse, if your code says something to the effect of:
LED1 = 1
LED1 = 0
then you probably won't see it come on at all...unless you got really super special eyes.