MagicEngine

I replied to the message you sent to support. Smile

Yes, it's a compile-time option. I will prepare you a special version.

Great!

What is the IRQ level set to in IRQ_Enable()?

IRQ_Enable() just clears the interrupt disable flag in the status register of the V810. IRQ_Init() had set it.

It looks like I have the IR ...

Sure, here it is :

void InitInterrupt()
{
IRQ_Init();
IRQ_SetVector(IRQ_LEVEL_7UPA, Intr7up);
IRQ_ResetMask(IRQ_LEVEL_7UPA);
IRQ_Enable();
...

Hmm, I'm not aware of any interrupt problem, but may be the library you use expect some initialization to be done by the BIOS, and since MEFX doesn't have one this could be a problem.

What SDK do y ...

Yes, they point to a directory you define in the pcfx.ini, and access is restricted too so that a program can't go outside this defined directory.

Oh yes I can enable some pio calls, the version I use to debug MagicEngine-FX already support putstr, fopen, fseek, fread, and fclose. Smile

Good question!

For patching some images of Pia Carrot I needed a RGB to YUV converter too, I tried many formulas but none of them was exact, there was always a little glitch, so in the end I used a ...

Yup, this is already implemented in the new version. Smile

It's easy too, at the beginning of each scanline you know what sprites will be displayed and where, check if they collide, calculate at what pixel and you got the interrupt time.

A lot of things going on, the hybrid VDC core is half finished, I got the timing and I/O part working, only the rendering part is missing, I'm trying to separate the two parts so that the rendering ca ...

Not anymore, that was what I was doing in the new core, something like that :

cpu_cycle();
vdc_cycle();
cpu_cycle();
vdc_cycle();
...

The hybrid core is a classic core with the CPU instructi ...

I'm starting to see the first result of the hybrid CPU core in action, it looks great! It's 3 to 4 times faster than the new core, and it's even faster than the old core by about 25%. Dancing

I rewrot ...

The hybrid concept seems to work fine, I have taken the old CPU core and I modified it to support cycle by cycle accuracy, and to test it I'm running it side by side with the new core, so far I get th ...

The new CPU core is harder to optimize than I thought, I optimized the code as much as I could but this gave me only a 20% speed increase.

The problem is that the new core emulate the instructions ...