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PSPTI99 v1.0.3: TI-99/4 Emulator
greg | March 18, 2008
Have the need to emulate a TI-99/4 home computer? Maybe you just wanna geek out and reminisce of past days… Whatever the case, check out ZX-81’s TI99Sim port; emulating, you guessed it — the Texas Instruments TI-99/4.

PSPTI99 v1.0.3 changes:
- Speed improvements
- Add vsync and autofire options
- Add several new hotkeys:
- settings such as fps, render mode, auto fire speed can now be directly modified inside the emulator (no need to enter in the settings menu)
- quick save / quick load current state (no need to enter in the main menu)
- Default Hotkeys can now be set in the keyboard mapping menu (useful to add hotkeys on existing/previous keyboard files)
- Bug fix in the low battery watchdog
Download:
PSPTI99 v1.0.3 fw 1.50
PSPTI99 v1.0.3 cfw 3.xx
PSPTI99 v1.0.3 source code
TI-99/4 roms pack
- source: ZX-81’s web site
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<_< another old emulator. Interesting none the less.
My turn as usual to point out how ZX does anything he can to get his name popping out in the scene. Way to go ZX, but where is Atari release #883793, you’re slacking.
lol now that was funny and kinda true, but at lest he’s keeping this scene alive with his updates.
@DepheCt: i’ve ported up to 18 differents emulators on BOTH gp2x and PSP , more than 10 applications, network stuff and few games …
Last release on this emulator was 8th december 2007 …. that what you call “get his name popping out in the scene” ??? tell this to lua key checker, or to time baby coders (sorry for them) not to me …
What have you done during this time ? flaming coders ? thanks for your contribution, fortunatelly my stuff is not for you :)
@Greg: thanks for the news :)
Zx
ZX-81, don’t listen to dicks DoucheCt, and keep plugging away. While I personally have no interest in this release, it’s always nice to have a coder creating new apps across a broad spectrum of softwares and hardwares. Keep it up.
Quality, ZX-81, as always!
Sweeeetttt!!!! I know I’m a dork, but I love playing some of these games, I use to have this computer and can’t get enough of Jungle Hunt, Moon Patrol, TI Invaders and all that good stuff….Thanks for this.
Coders? No.. just you big boy… just you. I am just waiting for the day you release something worth using. I have done nothing in the scene since my manhant 2 hack, that… greg did feature on here. Before that I used to make dashboards for xbox, I worked on THC dash, and BlackstormX. But, you’re right.. Ive done nothing.
Still, you’re my fav ZX. Big high five bro!
Why are you such a dick?
Why do you care so much?
I just don’t get the animosity directed towards ZX, a guy who works hard to churn out interesting apps. They may be of no interest to you, but why the vitriol?
lmao now this make me feel old i had the ti99 system when i was a kid first computer i ever owned great job ZX
I still have the real deal haha, I don’t I’ll use the emulator ^_^;
nice little app shame the roms have to be converted no time for that boo!