Search found 95 matches
- Thu May 01, 2014 1:50 pm
- Forum: Tools
- Topic: Gigasoft Sound Engine 2
- Replies: 5
- Views: 5246
At one point I was thinking of making a MIDI converter, but got stuck trying to think of how to optimize the use of the staccato command vs. rest notes while at the same time making the best use of loops. So, I went for a text-based input language instead, as a step up from writing my songs using .d...
- Thu May 01, 2014 1:08 pm
- Forum: Video Display Processor
- Topic: Confused about VRAM nametables (tiletables) sizes
- Replies: 6
- Views: 9007
- Sat Apr 26, 2014 8:48 pm
- Forum: Megadrive/Genesis
- Topic: Assemblers You Use
- Replies: 31
- Views: 20592
I use TASM (Telemark Assembler) for Z80. Generating an output that can be modified and then reassembled is extremely challenging, due to the need to locate all pointers. They can be in the immediate operand of an instruction, they could be in a table, they could be structure members in a table of st...
- Thu Apr 24, 2014 5:33 pm
- Forum: Demos
- Topic: wolfenstein demo for sega genesis
- Replies: 364
- Views: 455822
- Tue Apr 15, 2014 3:09 pm
- Forum: Demos
- Topic: Hide the Baby for Sega CD
- Replies: 7
- Views: 9648
- Tue Apr 15, 2014 2:51 pm
- Forum: Tools
- Topic: Gigasoft Sound Engine 2
- Replies: 5
- Views: 5246
- Tue Apr 15, 2014 9:37 am
- Forum: Sound
- Topic: Dual-YM2612 hardware synthesizer
- Replies: 53
- Views: 69876
My suggestions: - Do not map MIDI channel numbers to FM channels. Any FM channel is as good as any other, and it's up to the synth to make good use of them all. If I press 12 keys on my keyboard I just want to hear 12 notes sounding. - Use two YM2612s rather than two slightly dissimilar chips. - You...
- Mon Apr 14, 2014 11:09 am
- Forum: Tools
- Topic: Gigasoft Sound Engine 2
- Replies: 5
- Views: 5246
Gigasoft Sound Engine 2
Here is a new sound engine. Also included is a manual, a sound compiler, two demo songs, a small test program and the source code for Music Demo 1.
https://www.mediafire.com/?eu32wr2vllvjuic
Happy composing!
https://www.mediafire.com/?eu32wr2vllvjuic
Happy composing!
- Sat Mar 15, 2014 8:14 am
- Forum: Megadrive/Genesis
- Topic: How to optimize hblank, vblank, loop ?
- Replies: 36
- Views: 20253
The point is, if the main program accesses the VDP, and then the VBL or HBL handler interrupts it in the middle of it and also accesses the VDP, then something's going to go wrong. Therefore, if the main program accesses the VDP, it must ensure that it doesn't get interrupted. Usually, the game logi...
- Sat Mar 08, 2014 4:28 pm
- Forum: Sound
- Topic: Extreme High Quality Sound Emulation
- Replies: 24
- Views: 22077
Yes, but assuming if my driver is changing instruments frequently, it can't guarantee that release rate is enough to reset volume to lowest, when I change instrument. The attenuation is reset automatically regardless of the release rate setting, as long as you have enough spacing between key off an...
- Thu Mar 06, 2014 1:46 am
- Forum: Megadrive/Genesis
- Topic: 68k signed division problems (DIVS instruction)
- Replies: 9
- Views: 6282
You can divide a signed number by a power of 2 in this way.
Signed division:
Signed remainder:
Signed division:
Code: Select all
tst.w d0
bpl positive
add.w #Divisor-1, d0
positive:
asr.w #BitCount, d0
Code: Select all
and.w #Divisor+$7fff, d0
bpl positive
subq.w #1, d0
or.w #-Divisor, d0
addq.w #1, d0
positive:
- Fri Dec 06, 2013 9:47 pm
- Forum: Demos
- Topic: SOUND: YM2612 CSM mode raw test
- Replies: 9
- Views: 8533
The Bad Apple link does not work anymore, can someone upload the ROM somewhere?
For those that missed it, see this old topic for my 24 sine speech codec: viewtopic.php?t=1144
For those that missed it, see this old topic for my 24 sine speech codec: viewtopic.php?t=1144
- Sun Aug 25, 2013 12:10 am
- Forum: Demos
- Topic: Music Demo
- Replies: 3
- Views: 3606
Everything was input manually with .db statements for now, but a converter taking MIDI as input might be an idea for the future, or possibly an easily readable text format. Fortunately, this data is easy to input, as most notes are 1 byte in length. The driver supports 16 independent tracks with ass...
- Sat Aug 24, 2013 6:16 pm
- Forum: Demos
- Topic: Music Demo
- Replies: 3
- Views: 3606
Music Demo
Here is a selection of various video game tunes, using a new sound engine. Download here:
http://www.mediafire.com/?79ir7w97zs8un0y
Select track with left and right, press any button to play.
http://www.mediafire.com/?79ir7w97zs8un0y
Select track with left and right, press any button to play.
- Thu Aug 15, 2013 5:45 pm
- Forum: Megadrive/Genesis
- Topic: some help for rom hacking
- Replies: 4
- Views: 4094