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Author Topic: The Axe Pages  (Read 32333 times)

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Offline calcdude84se

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Re: The Axe Pages
« Reply #75 on: April 27, 2010, 08:12:53 pm »
Call it multi-threading if you will, but it sucks as that. More like something that allows you to run small amounts of code in the background
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Re: The Axe Pages
« Reply #76 on: April 27, 2010, 08:19:05 pm »
Yeah, that's a better description.  The right word to describe it escaped me.
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Offline DJ Omnimaga

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Re: The Axe Pages
« Reply #77 on: April 27, 2010, 11:35:18 pm »
Btw, when running an Axe game, try pressing ON repeatdely. Notice the tiny pauses when pressing the key x.x

I even noticed that in ASM games ran with the Asm() command
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Offline calcdude84se

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Re: The Axe Pages
« Reply #78 on: April 28, 2010, 07:32:07 am »
The OS itself does that too... It will happen anywhere, in any program, unless the ON interrupt is disabled or the calc is set to IM2 (maybe).
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Offline DJ Omnimaga

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Re: The Axe Pages
« Reply #79 on: April 28, 2010, 09:42:30 am »
There's also something I discovered in TI-BASIC:

When you use ASM programs to disable the ON button in a BASIC game, using certain programs like CODEX afterward may crash the calc. And during archiving/unarchiving process, if the busy indicator was turned OFF it will be turned back ON. Idk if the latter happens with Axe, though
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Offline titane666

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Re: The Axe Pages
« Reply #80 on: April 28, 2010, 12:59:47 pm »
I found out (too late) that I coded a infinite loop without the possibility to quit.
what should have I done?
I mean, is there any kind of key combination to force an asm program to quit or something like the BASIC [on].
I had to upgrade the os to quit. (I have an nspire)
and to restore my data's.
If someone know anything, thank to help.
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Offline Quigibo

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Re: The Axe Pages
« Reply #81 on: April 28, 2010, 02:00:09 pm »
Unfortunately, assembly doesn't allow you this option without some special interrupt code.  I may be adding a safety feature eventually that allows you to test in a "debug mode" which adds the interrupt code to the source to allow [ON] breaks.  Even though it makes the executable larger and slower, it would really just be for testing anyway.

I'm not sure how the NSpire handles 84+ emulation, but I've heard its not the greatest when it comes to things like this.
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Offline Silver Shadow

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Re: The Axe Pages
« Reply #82 on: April 28, 2010, 02:32:35 pm »
Instead of updating the OS every time this happens, just press the reset button located on the back of the Nspire. This might be helpful. :P
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Offline DJ Omnimaga

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Re: The Axe Pages
« Reply #83 on: April 28, 2010, 03:14:17 pm »
Quote from: Quigibo on April 28, 2010, 02:00:09 pm
Unfortunately, assembly doesn't allow you this option without some special interrupt code.  I may be adding a safety feature eventually that allows you to test in a "debug mode" which adds the interrupt code to the source to allow [ON] breaks.  Even though it makes the executable larger and slower, it would really just be for testing anyway.

I'm not sure how the NSpire handles 84+ emulation, but I've heard its not the greatest when it comes to things like this.
Mostly the undocumented z80 instructions will fail
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Offline Galandros

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Re: The Axe Pages
« Reply #84 on: April 28, 2010, 03:50:03 pm »
Quigibo, the On interrupt can be easily disabled with a write to a port.
Seeing the WikiTI documentation, I coded this routines. They are experimental, no test was made by me.

disableOnInterrupts:
 in a,(3)
 and %11111110   ; Bit 0: Set 1 to enable the ON key. Set 0 acknowledge the interrupt request and/or to disable it.
 out (3),a
 ret

defaultInterruptTIOS:
;For normal operation, write 0B (00001011) to this port. This will allow the first timer to generate interrupts, and the on key.
 ld a,$0B
 out (3),a
 ret
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Offline calcdude84se

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Re: The Axe Pages
« Reply #85 on: April 28, 2010, 04:43:08 pm »
Would it really make the code that much larger? It's probably on the order of ~100 bytes, if even, and it only needs set up; the code doesn't need stuff inserted w/in it.
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Offline DJ Omnimaga

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Re: The Axe Pages
« Reply #86 on: April 28, 2010, 05:01:43 pm »
Mhmm I seriously doubt this would increase the code size for executables that much. Maybe a bit for the APP but that doesn,t matter much.
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Offline Galandros

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Re: The Axe Pages
« Reply #87 on: April 28, 2010, 05:31:36 pm »
My code only disables the On interrupt and later restores it. I hope it works and stops the On slow down. The code does not install custom interrupts...

It is only 10 bytes. (the 2 ret's can be omitted if you run the code forwardly instead of using as a function call'ed)

In z80 assembly, the instructions (a instruction correspond to 1 line of source code, normally) take 1 to 4 bytes.

EDIT2: Oh, I got it. The On Break is really useful to prevent endless loops and a RAM Clear. That is a important feature in debug even if for 100 bytes because it is quite common to get in a endless loop.
« Last Edit: April 28, 2010, 05:38:51 pm by Galandros »
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Offline calcdude84se

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Re: The Axe Pages
« Reply #88 on: April 28, 2010, 05:33:15 pm »
Maybe a coupled hundred bytes then? But it still wouldn't be that large, and could be useful.
Do you like RAM resets? of course not. :)
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Offline DJ Omnimaga

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Re: The Axe Pages
« Reply #89 on: April 28, 2010, 05:35:29 pm »
Nah I hate them D:

I am used to grouping my stuff everytime befiore testing, it's not too long, but sometimes we forget or test in a hurry and them BAM! Endless loop/crashes x.x

I did that since the days I've been using xLIB, because I got crashes with it too
« Last Edit: April 28, 2010, 05:37:45 pm by DJ Omnimaga »
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