SpritesMind.Net

Shiru wrote:Which game uses SSG-EG on SMD?

Asterix and Bubba N Stix use it quite a bit. Shining Force 2 uses it to a lesser degree but doesn't have the handy sound test feature.

I agree. For simplicity's sake, you're welcome to access the YM2612 this way. But letting the Z80 idle certainly diminishes the power of the console.

Just to be certain, you might wanna try: But, hey, as long as it works...

It clears Z80 RAM (except for the code), clears all the registers, disables interrupts, and loops endlessly at address $0000.

Great news! Pretty simple explanation: a status byte turns into a command byte. Though it does seem like a Kega bug as I wouldn't expect the actual hardware to process this phony command. But maybe it does -- just seems kinda quirky. BTW, your code is getting sloppy: else if(command==0x0402)//UnHalt...

To correct the Z80 disassembly: * Z80 PRG dc.b $af ; XOR A dc.b $01,$d9,$1f ; LD BC,$1FD9 dc.b $11,$27,$00 ; LD DE,$0027 dc.b $21,$26,$00 ; LD HL,$0026 dc.b $f9 ; LD SP,HL dc.b $77 ; LD (HL),A dc.b $ed,$b0 ; LDIR dc.b $dd,$e1 ; POP IX dc.b $fd,$e1 ; POP IY dc.b $ed,$47 ; LD I,A dc.b $ed,$4f ; LD R,A...

The Z80 would be good as a co-processor for watching the keyboard (if you don't care about PCM audio), but apparently the controller ports are not accessible except through the 68K bank area. That makes it a bit more limiting (more bank switches when you want to read sound data from the 68K), but n...

The Z80 would be good as a co-processor for watching the keyboard (if you don't care about PCM audio), but apparently the controller ports are not accessible except through the 68K bank area. That makes it a bit more limiting (more bank switches when you want to read sound data from the 68K), but n...

Sure I'll break out my US model 2 if you think it's worth it. I'm game.

It's basically a stream composed of three small video frames side-by-side played back at 15 frames per second. Most of the effects are low-impact -- palette or tile effects. The concept of real-time music video editing was novel at the time but, yeah, the game sucked eggs. Oh well. thing is, i noti...

It's basically a stream composed of three small video frames side-by-side played back at 15 frames per second. Most of the effects are low-impact -- palette or tile effects.

The concept of real-time music video editing was novel at the time but, yeah, the game sucked eggs. Oh well.

OK... let me know if I can help.

Well, as you may imagine, I start to do silly thing with the hardware ;) Here is a list of : :arrow: - Trying to set HINT enable while the vdp is on display period imediately reset the main cpu, even if the HINT code is situated in megadrive ram (if situated in workram, it will hang anyway). Workar...

If you're looking for template code, you can probably do better than the Egypt demo. Nevertheless, you should also copy the interrupt routine while you're at it. Now, about that free running timer.... SH2 registers (TIER, OCRB, ...) init is needed indeed (funny to write). Note this: mov.l REG_TIER,R...

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