Yet More Xroar

[sixxie]

Just released v0.10. GP32-wise, it fixes the last emulation bug I know of (Racer Ball! Rommel 3D!) and more importantly ( ) massively reduces the CPU needed. Now runs at 66MHz thanks to some rewritten video (and audio, but think I got more from the video) routines.

http://www.6809.org.uk/dragon/xroar.shtml

 

[NiN^_^NiN]

Great job sixxie

even faster and a new bugfix

i :wub: u sixxie

this is soooooo cool im gonna test it now

h34r:

 

[Dozer]

Wow thanks sixxie . Another top notch release by the looks of things.

 

[Dolfhin]

GURU STATUS

Excellent really fast and perfect emulation

 

[triksR4rabits]

Wow, really cool! I wholeheartedly second the Guru status as well
he's dreamy... :wub:

 

[Hooka]

Thank you sixxie!!!
Can't wait to finish work and try this out!
You have a good day sixxie
I concur about Guru!(I was meaning give sixxie Guru...how did I get guru?)
Also, sixxie what is the SEX bug and how did you fix it?

 

[Kojote]

From v0.9a to v0.10... isn't there a small logical mistake?

 

[jegHegy]

From v0.9a to v0.10... isn't there a small logical mistake?

0.10 isn't a decimal float, it's a version number.

 

[Dozer]

From v0.9a to v0.10... isn't there a small logical mistake?

0.10 isn't a decimal float, it's a version number.

And should be v1.0 shouldn't it?

 

[jegHegy]

From v0.9a to v0.10... isn't there a small logical mistake?

0.10 isn't a decimal float, it's a version number.

And should be v1.0 shouldn't it?

major version 0, minor version 10. is that so hard to understand?

 

[Dozer]

From v0.9a to v0.10... isn't there a small logical mistake?

0.10 isn't a decimal float, it's a version number.

And should be v1.0 shouldn't it?

major version 0, minor version 10. is that so hard to understand?

Nope, it isn't. Just didn't realise it worked like that. Still seems weird to have a smaller number for a later release but meh.

 

[Axeman]

Literally read "nought point ten".

 

[NiN^_^NiN]

I have been playing this for ages last night and i must say it's played everything i'v thrown at and i only just relised there is a option to turn dos off to get cas images working

thanks sixxie

I agree he should become a guru as i have 1 for whatever reason i have it

h34r:

 

[DaveC]

Thank you sixxie!!!
Can't wait to finish work and try this out!
You have a good day sixxie
I concur about Guru!(I was meaning give sixxie Guru...how did I get guru?)
Also, sixxie what is the SEX bug and how did you fix it?

SEX bug? I am not sure I want to know about this one. :lol:

 

[sixxie]

Also, sixxie what is the SEX bug and how did you fix it?

Really annoyingly simple. SEX is an opcode meaning "Sign EXtend B into A", ie, A is filled with the sign bit of B (thus making the combined register D (of which A forms the upper 8 bits and B the lower) be the 16-bit 2s complement equivalent of 8-bit register B).

Here's the diff:
- reg_d = sex(reg_a);
+ reg_d = sex(reg_b);

I am a fool

For more info: http://catb.org/~esr/jargon/html/S/SEX.html, sense 2.

(Edit: What's most curious to me is how few games seem to use the instruction...)

 

[Kai]

Also, sixxie what is the SEX bug and how did you fix it?

Really annoyingly simple. SEX is an opcode meaning "Sign EXtend B into A", ie, A is filled with the sign bit of B (thus making the combined register D (of which A forms the upper 8 bits and B the lower) be the 16-bit 2s complement equivalent of 8-bit register B).

Here's the diff:
- reg_d = sex(reg_a);
+ reg_d = sex(reg_B);

I am a fool

For more info: http://catb.org/~esr/jargon/html/S/SEX.html, sense 2.

(Edit: What's most curious to me is how few games seem to use the instruction...)

Well, I'm baffled :blink: :unsure: :rolleyes:

 

[generalnmx]

Interesting, I didn't know there was a SEX opcode in ARM. I only know about LDRH / STRH and it's derivatives.

 

[trooper]

Yeah, Me too, I prefer uncomplicated sex.

Trooper

 

[sixxie]

Interesting, I didn't know there was a SEX opcode in ARM. I only know about LDRH / STRH and it's derivatives.

Ah no, this bug wasn't in ARM, this was in the emulated 6809 core (which is all C)

Although as you point out, you do have LDRSH and LDRSB, for signed loads of bytes and halfwords which kinda does the same thing. You can also do it to a current register (no load) with two shifts, first logical shift left so top bit = sign bit, then arith shift right same amount. Something like that anyway. Really must actually write some ARM one of these days

 

[NiN^_^NiN]

If your emu was done in oure ARM asm it run at 33mhz

how many hours we would get *thinks* holy metal bat man

great work

h34r: