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Author Topic: frame rate/speed  (Read 16075 times)

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Offline Happybobjr

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frame rate/speed
« on: September 14, 2010, 07:18:23 am »
Is there any way to limit a programs frame rate/speed?
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Offline Raylin

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Re: frame rate/speed
« Reply #1 on: September 14, 2010, 08:03:58 am »
Use the Pause(EXP) command every now and again. But, I don't think you can do it accurately...
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Re: frame rate/speed
« Reply #2 on: September 14, 2010, 09:38:11 am »
u could use an interrupt to update the screen, and do a 'Stop' every time you updated the buffer.
Quote from: Documentation
Stop:Stops execution until the next interrupt occurs. Interrupts must be enabled or else the calculator will freeze.
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Offline Raylin

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Re: frame rate/speed
« Reply #3 on: September 14, 2010, 09:45:19 am »
Yeah, that too.
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Offline DJ Omnimaga

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Re: frame rate/speed
« Reply #4 on: September 14, 2010, 12:26:02 pm »
Another solution if you aren't using interrupts is to make sure DispGraph is only ran like every 2 or 3 loop. If slowed down too much it can make the game a bit too fast, though, so you may have to add a Pause command or stuff more features there.
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SirCmpwn

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Re: frame rate/speed
« Reply #5 on: September 19, 2010, 11:58:33 am »
DO NOT USE STOP WITHIN AN INTERRUPT!
This would be bad.  Interrupt code turns OFF interrupts upon executing.
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Offline DJ Omnimaga

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Re: frame rate/speed
« Reply #6 on: September 19, 2010, 12:39:30 pm »
What kind of stuff can happen if you do so?
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Offline calc84maniac

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Re: frame rate/speed
« Reply #7 on: September 19, 2010, 12:44:33 pm »
The calc would hang and you would have to pull a battery.
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Offline calcdude84se

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Re: frame rate/speed
« Reply #8 on: September 19, 2010, 12:53:26 pm »
Code: [Select]
FnOff
Stopor, in ASM
Code: [Select]
di
haltShortest way to freeze a z80 processor AFAIK ;D
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Re: frame rate/speed
« Reply #9 on: September 19, 2010, 12:57:17 pm »
Quote from: calc84maniac on September 19, 2010, 12:44:33 pm
The calc would hang and you would have to pull a battery.
Ah ok I was worried worse stuff migth happen or something x.x
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Offline Happybobjr

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Re: frame rate/speed
« Reply #10 on: September 19, 2010, 01:08:24 pm »
so nothing will make it even?
so i have a consistent speed of a ship or something in real time?
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Offline calcdude84se

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Re: frame rate/speed
« Reply #11 on: September 19, 2010, 01:14:32 pm »
Back to your original problem, interrupts would probably be the way to go.
An example:
Code: [Select]
0->C->X
ClrHome
fnInt(T,0
Repeat getKey(0)
!If C
Disp X+1->X>Dec
50->C
End
End
Return
Lbl T
C-1->C(Untested, should work)
Edit: Oops, wrote getKey instead of getKey(0). Fixed.
Edit 2: Bad typo. Fixed
« Last Edit: September 19, 2010, 01:18:10 pm by calcdude84se »
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SirCmpwn

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Re: frame rate/speed
« Reply #12 on: September 19, 2010, 01:15:49 pm »
Quote from: DJ Omnimaga on September 19, 2010, 12:57:17 pm
Ah ok I was worried worse stuff migth happen or something x.x

It would also clear RAM.
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Offline Happybobjr

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Re: frame rate/speed
« Reply #13 on: September 19, 2010, 01:18:41 pm »
Quote from: calcdude84se on September 19, 2010, 01:14:32 pm
Back to your original problem, interrupts would probably be the way to go.
An example:
Code: [Select]
0->C->X
ClrHome
fnInt(T,0
Repeat getKey(0)
!If C
Disp X+1->X>Dec
50->C
End
End
Return
Lbl T
C-1->C(Untested, should work)
Edit: Oops, wrote getKey instead of getKey(0). Fixed.
Edit 2: Bad typo. Fixed

ok thanks
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Offline calcdude84se

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Re: frame rate/speed
« Reply #14 on: September 19, 2010, 01:23:41 pm »
And it crashes horribly... You get the idea, though.
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