SpritesMind.Net

Thank you Tmee for the answer. Moreover, Chilly Willy posted his toolchain here http://gendev.spritesmind.net/forum/viewtopic.php?f=7&t=3024, and in particular, there is the file examples/Yeti3D/platform/32X/sh2_crt0.s which states main_vres_irq: mov.l mvri_mars_adapter,r1 mov.w r0,@(0x14,r1) /* cle...

Hello guys. The 32X doesn't have any reset input. It does have, though, a VRES interrupt, which is raised when the user presses the reset button on its Genesis. I am trying to make a proper reset method. I have tried to clear the register and have set PC = 0, but it doesn't seem to work (I'm testing...

Hello Near, and thank you so much for your investment in this 32X emulator. If there is a wishlist, and it is still open, would you consider : - a debugger (a must. 'definitely would pay for it) - throwing DEI when DMA finishes (see bit CHCR0/1.IE and register VCRDMA0/1). It looks like no game made ...

Thanks to themrcul who allowed me to copy paste an exchange we've had on PM : Hi Olivier, Thanks for your message. I am delighted with my x7 pro. Yes, you can send through roms from the computer to the Mega Drive through the USB port, and it is blazing fast. Therefore if you are making a game you ca...

There. A bit outdated, as I wrote this forever years ago, but it could help

viewtopic.php?p=11893#p11893

I think there might be an error with your header. The Genesis header is 0-100h : 68k vector exception 100-200h : Genesis header Here, it seems to me that 1. you've got instructions between the exceptions and the genesis header 2. I'm not sure the header is correctly aligned Again, you may check Sik ...

matthewnimmo wrote: ↑

Tue Mar 09, 2021 11:19 pm

Is there a simple Sprite tutorial out there?

Not to my knowledge.
Plus I wouldn't expect to find it on a forum. More likely a website, like a tutorial.

NB : the 32X can't natively do sprites, it just has a frame buffer. I'd say the Hello World you're talking of is a good starting point.

I'm sorry ot resurrect - again - such an old topic, but I've been toying with this mode, and I have problem putting it in use. Let the code : ROM_SIZE equ $10000 GFX_CTRL equ $C00004 GFX_DATA equ $C00000 _dmaSrcDestLen: macro move.w #$9300+((\3)&$FF),GFX_CTRL move.w #$9400+((\3>>8)&$FF),GFX_CTRL mov...

Hello Cydeenwins.
Your code looks good, but since it states it starts at 0, I wonder if you put a valid header ...

OK I got it.
Quite new for me, but that explains a lot.
Thank you very much ^^

Hello @srg320, and thank you very much for you quick answer.
Are you telling me that the custom internal ROM ($00~$FF) is actually ... RAM ?

Sorry to relive a topic - again !, but there is one line of code that I find surprising. Just between SDER and TV Mode Check, we have move.l #$8802A2,$70 ; 21 FC 00 88 02 A2 00 70 If my 68k isn't too rusty, I translate this by "write the value 0x8802a2 ... in ROM ?!" First of all, how is it possible...

Sorry to resurrect such an old topic, but I thought the work I've recently done one the BIOS disassembly would be useful. Now, it compiles with asmsh /ol! DC.L resetPC ; Power-on reset PC DC.L $06040000 ;Power-on reset SP DC.L resetPC ; Manual reset PC DC.L $06040000 ;Manual reset SP DC.L ERR ;Gener...

ob1 wrote: ↑

Mon Mar 12, 2007 8:34 am

ASMSH adds a silly header and appends a byte to the binary. I've written this tool to fix it :

or you could, you know, use "/p"

Thank you. I have retrieved the DDK. Though it seems to use all the 32X resources, the SH2 DEI seems left untouched. Indeed, I found no trace of something like "MOV.*_DMAVECTORN0", _DMAVECTORN0 being the label of DMAVCR0. Plus, the only value for CHCR I found excluded the IE bit. So, I guess it's fa...