So, I'm using Shirus TFM Music Maker for 6 channel FM music and the z80 for 8-bit mono wave samples.
When I burn an ISO and run it on my X'Eye the z80 driver actually plays back sound! It's unrecognizable from the original sample but it's there!
Is this a quirk of the X'Eye? If I can even get screeches does this mean it may be possible to modulate the samples to play correctly?
z80 still available for sound?
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z80 still available for sound?
Last edited by slobu on Wed Nov 07, 2012 3:10 pm, edited 1 time in total.
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YM is monopolised by both sides... but ony one side can do it, so you end up with a giant mess.
Interactions with the YM mist be coordinated on both Z80 and 68K side, both sides cannot do an access at the same time without messing up everything.
Interactions with the YM mist be coordinated on both Z80 and 68K side, both sides cannot do an access at the same time without messing up everything.
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Playing samples on CD Z80 software... lemme guess, you're playing them out of word ram...
Sega's tech bulletins say the Z80 cannot read CD word ram. In fact, the only memory the Z80 can read in CD software is its own sram. The Z80 cannot read the MD work ram, so the only way the Z80 could get samples to play is for the program to use the 68000 to copy them into sram for the Z80.
This lack of any memory for the Z80 to use other than the 8KB of sram in CD software is one of the biggest issues CD programs face in trying to use the Z80. It's part of why the CD has a PCM chip in it - you're expected to use that instead of the Z80/FM/PSG.
Sega's tech bulletins say the Z80 cannot read CD word ram. In fact, the only memory the Z80 can read in CD software is its own sram. The Z80 cannot read the MD work ram, so the only way the Z80 could get samples to play is for the program to use the 68000 to copy them into sram for the Z80.
This lack of any memory for the Z80 to use other than the 8KB of sram in CD software is one of the biggest issues CD programs face in trying to use the Z80. It's part of why the CD has a PCM chip in it - you're expected to use that instead of the Z80/FM/PSG.
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