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Messages - thepenguin77
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1171
« on: December 31, 2010, 10:16:27 pm »
I'm not exactly sure why the instructions are undocumented. The best guess I can make is that they are optionally supported. So, it's common knowledge that they are there, but if the very early models or late models don't support them, then they won't be disobeying the z80 spec.
I think I remember reading something to that extent somewhere some time ago.
1172
« on: December 26, 2010, 12:17:51 am »
MSD8X does require the extra ram pages. I remember brandonW saying before that he was amazed that people got it to work on calculators that didn't have enough ram. I guess the only explanation would be if there aren't many files on the flash drive so that the different buffers don't overflow into each other.
1173
« on: December 24, 2010, 11:44:03 am »
Oh, ok. I managed to get my graphlink at Best Buy also. I am actually still surprised that they had it at the time.
1174
« on: December 24, 2010, 11:40:23 am »
Wow, Ashbad, you don't have any mini usb B cables? That's unheard of to me, I have like 8. I bet you could pick up an overpriced one at Best Buy or Radio Shack. Probably even Walmart.
On further research: Best Buy in-store $15. Walmart online (maybe in store) $7. And Radio Shack is the cheapest with $4 online, and maybe $.69 in store.
1175
« on: December 18, 2010, 11:16:17 am »
If you don't want to buy anything, you can just do this. But you have to have a usb female big A adapter lying around.
1176
« on: December 16, 2010, 06:34:18 pm »
For me, windows is convinced 8xp are text files and will refuse to treat them as anything else 
easy fix, just go to the control panel and change file associations
Iambian, I'm really looking forward to this 
This doesn't always work I think. I accidentally made 8xk files be openable by Notepad once and I never could find the original TI-Connect app icon again in control panel afterward, so now there's no send to TI device option anymore, I have to double-click the APP. Reinstalling TI-Connect doesn't do the trick. Once you accidentally change TI-Connect file associations, it's over.
I did the exact same thing. The problem is that you want the default file extension which is not strictly attached to a program. Use this. Worked like a charm.
1177
« on: December 16, 2010, 06:19:51 pm »
About your running the archived appvar: While that is an awesome idea, Ti won't let you do it. Only the first few flash pages and last few flash pages are allowed to run code. Port 23 sets the upperbound limit and it is always set to only allow your apps to run. Which means that even if you do make a cool appvar that uses only relative addresses, the calc will instantly ram clear when you try to run the code. Instead of using appBackUpScreen, might I suggest using smallEditRam. It is 107 bytes long and is almost never touched. Most games won't even kill it.
1178
« on: December 08, 2010, 03:20:31 pm »
Actually it is very easy to compile. My compiler mentioned in the second post does just that. It almost directly translates to assembly in fact. > is inc hl, < is dec hl, + is inc (hl), and - is dec (hl). The other four commands are a little more complex, but not much bigger than 10 bytes a piece.
1179
« on: December 06, 2010, 04:06:20 pm »
Or you could ask thepenguin77.
Here's the source. You would be most interested in the grayCopy: section at the bottom.
Edit:
Here's a sample pic so that you can see it in action in a debugger.
1180
« on: December 06, 2010, 03:59:42 pm »
I can't replicate it with 2.53 or 2.43. Can you do it on wabbitEmu?
1181
« on: December 01, 2010, 08:42:06 pm »
Yay, I fixed it. The current instruction register was outputting a 6 just before it got changed to 1. So I just bypassed it for phase 1 and it worked. Off to make a text routine.
Thank you
1182
« on: December 01, 2010, 08:04:29 pm »
You would be correct. Just take off the .txt extension.
1183
« on: December 01, 2010, 07:55:45 pm »
This might scare the crap out of you, but here it is. The whole cpu is on one screen.
Important stuff:
All commands take 4 clocks.
00 nop
01 ld a, imm
02 ld b, imm
03 ld c, imm
04 ld d, imm
05 jp imm
06 ld (imm), a
07 ld a, (imm)
The program I have loaded is this.
ld a, $69
ld ($0102), a
ld a, $FF
ld a, ($0102)
1184
« on: December 01, 2010, 07:48:09 pm »
Well, I've spent the last two days making a cpu. I must say it is pretty interesting. I have managed to get 5 registers and the commands nop; ld register, imm; jp imm; ld (imm), a; and ld a, (imm). But I have been halted by what I believe to be a glitch in the program.
My PC is set to latch input on the falling edge of the clock. But now and then, it latches on the rising edge! This makes my program fail pretty bad because there is no usable data on the rising edge. My program just loops back to 0000.
1185
« on: November 29, 2010, 11:28:48 pm »
I recently got mine from radio shack, (I lost my old one). It was $10. Overpriced, but it works. It also has a third band for a microphone, but it didn't interfere.
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