PSPVBA: GameBoy Advance Emulator for PSP v1.0.4

after reading the source code

void mode0RenderLine()
{
u16 *palette = (u16 *)paletteRAM;

if(DISPCNT & 0x80) {
for(int x = 0; x < 240; x++) {
lineMix[x] = 0x7fff;
}
return;
}

if(layerEnable & 0x0100) {
gfxDrawTextScreen(BG0CNT, BG0HOFS, BG0VOFS, line0);
}

if(layerEnable & 0x0200) {
gfxDrawTextScreen(BG1CNT, BG1HOFS, BG1VOFS, line1);
}

if(layerEnable & 0x0400) {
gfxDrawTextScreen(BG2CNT, BG2HOFS, BG2VOFS, line2);
}

if(layerEnable & 0x0800) {
gfxDrawTextScreen(BG3CNT, BG3HOFS, BG3VOFS, line3);
}

gfxDrawSprites(lineOBJ);

u32 backdrop = (READ16LE(&palette[0]) | 0x30000000);

for(int x = 0; x < 240; x++) {
u32 color = backdrop;
u8 top = 0x20;

if(line0[x] < color) {
color = line0[x];
top = 0x01;
}

if((u8)(line1[x]>>24) < (u8)(color >> 24)) {
color = line1[x];
top = 0x02;
}


most of the instruction were if-else statement

now I know it will be very hard to improve..

oh btw, whats up with the "foo" file in the roms folder?
Is that something I shouldn't erase?
thanks

Quote:

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Originally Posted by zx-81

I don't know (because a software is never finished) but ... we are to close to the max i can do for speed :o :eek:

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are ya saying that it isnt gonna get much faster than this :confused: :(

Quote:

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Originally Posted by Mr. Shizzy

What a pleasant surprize to come home from work to!
Thanks ZX-81 - your hard work is very much appreciated. A couple of questions if I may:

1) In your final version (eventually) how well can we expect sound to work??

2) After the final version is complete Is there anyway you would consider an encore version utilizing kernal formode to increase speed for 1.5 fw? I know you want it to run on all fw versions, but once you've done all you can do for 2.0+
it would be a shame not to see this wonderful emu reach it's max potential.

3) So are you retiring from the PSP hb scene after this? I really hope not. You've done so much for us, it would feel like losing a family member!!! However, if you do - good luck with your next venture. Thanks a million for your tremendous contributions to the PSP hb scene. You will be truelly missed.

4) Is Kingdom Hearts compatable with this version?
(Haven't got to test it yet) If not, is it even possible?

5) Wouldn't a Sega Saturn emu be fun? lol I know, I know- I'm pushing it! lol

Hey ZX, thanks again man

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i'm all for number 2 on that list :D

Quote:

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Originally Posted by samthegreat68

are ya saying that it isnt gonna get much faster than this :confused: :(

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I guess, this is what is mean.........

Has sound processing been moved to the media processor like snespsp_tyl_me? That would free up some processor cycles on the main cpu wouldn't it? Again I believe (with my very limited understanding) that this would require the code to be written for kernel mode which it currently isn't? With the upcoming exploitation of Kernel mode in 2.0 to 2.6 this would be doable? If I understand right the psp has cpu, gpu and media engine processors right?

All hail to the never-sleeping, hardworking coder for this wonderful emu...though i hope i dun have to reformat my memory stick for it and i'm certainly looking forward to being able to run 32MB roms since i have a 2GB MS ^^

^^^ Lovin your sig man! lol ^^^

Quote:

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Originally Posted by zx-81

I don't really know but i still have many ideas for homebrew development :)

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Cool glad to see your still going to contribute to the homebrew scene. Could you maybe tell us what sort of ideas you have for homebrew development?

Thanks for your comment :)

Quote:

---

Originally Posted by Mr. Shizzy

What a pleasant surprize to come home from work to!
Thanks ZX-81 - your hard work is very much appreciated. A couple of questions if I may:

1) In your final version (eventually) how well can we expect sound to work??

---

Don't expect much more :( ...

Quote:

---

Originally Posted by Mr. Shizzy

2) After the final version is complete Is there anyway you would consider an encore version utilizing kernal formode to increase speed for 1.5 fw? I know you want it to run on all fw versions, but once you've done all you can do for 2.0+
it would be a shame not to see this wonderful emu reach it's max potential.

---

Right, i will see when i will downgrade.

Quote:

---

Originally Posted by Mr. Shizzy

3) So are you retiring from the PSP hb scene after this? I really hope not. You've done so much for us, it would feel like losing a family member!!! However, if you do - good luck with your next venture. Thanks a million for your tremendous contributions to the PSP hb scene. You will be truelly missed.

---

Don't worry, i'm still here lol.

Quote:

---

Originally Posted by Mr. Shizzy

4) Is Kingdom Hearts compatable with this version?
(Haven't got to test it yet) If not, is it even possible?

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I haven't tried too ...

Quote:

---

Originally Posted by Mr. Shizzy

5) Wouldn't a Sega Saturn emu be fun? lol I know, I know- I'm pushing it! lol

Hey ZX, thanks again man

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I've many other projects in my to-do list ;).