Previous Page | Next Page

by Richter X at 11:09 PM EST on February 21, 2008
Ahhhh.....yes. It feels sooooo good to hear stereo NSFs again! Thanks.

Also, the huge playlist issue is still there. Any idea what's causing it? Another issue. When you're not playing a VRC7 NSF and switch between tonesets, you can't see what toneset you're switching to.

edited 11:45 PM EST February 21, 2008
by nensondubois at 11:13 PM EST on February 21, 2008
Great!
This weekend by unknownfile at 9:20 AM EST on February 22, 2008
I will be doing work on school stuff, but if I get around to having spare time (I always do), I will try and get some MDSF crap done.

I'm just that bored.
Battletoads by unknownfile at 5:38 PM EST on February 23, 2008
1) 0x25E6C = nop
2) 0x25F26 = infinite loop
3) Save ROM
4) ???
5) PROFIT
gens getting ported to winamp by unknownfile at 1:14 PM EST on February 24, 2008
Yeah, it's underway and such. I still have to remove a lot of code (in particular, the graphics processing) before it can become a Winamp plugin.
in_msx in STEREO by unknownfile at 10:22 PM EST on February 24, 2008
I have been screwing about with in_msx for a while now, and now you, too, can listen to stuff in stereo!

You can't configure the pan yet, but whatever.

Doink

(I wanted access to this at school so ya)

...

WELL HELLO THERE. IT SEEMS THAT THIS DIDN'T CHANGE.

edited 10:59 AM EST February 25, 2008
mdsf specs, revision 1 million by unknownfile at 12:42 PM EST on February 25, 2008
MDSF Specs revision 0
by unknownfile

INTRODUCTION TO MDSF

MDSF ("Megadrive Sound Format") is yet another PSF-based format. This time, it is aimed at replacing
the long-lived problem of logged Genesis/Megadrive music (VGM, GYM etc) which are often far from optimal,
or contain quirks that might not be present in ripped data.

MDSFs use PSF version byte 0x13 (official), and do not use the reserved section as of yet.

THE COMMON ROM SECTION

Every set has a generic ROM section present. The section is laid out thus:

4 bytes: "ROMS" ("ROM section")
4 bytes: load offset
4 bytes: load size
xx bytes: the data itself

If a Sega CD is emulated, data in this section will be written to a space for ISO data, and the Sega
CD BIOS will be written to the ROM section instead unless specified below.

INITIALIZING OTHER CPUS

To allow other CPUs on the Megadrive to run, you need to specify one of the following:

- "S68K" for Sega CD
- "SH2!" for Sega 32X
- "Z80?" for Z80-only rips

Parameters for these follow.

NOTES ON THE SEGA CD

The Sega CD ROM section will contain an ISO unless a flag is written in the header:

4 bytes "S68K"
1 byte "override flag"

If the override flag is not 0, the data in the ROM section will be written to Genesis ROM space.

NOTES ON THE SEGA 32X

Simple section. There is one byte there for expansion flags.

4 bytes "SH2!"
1 byte expansion

NOTES ON Z80 RIPS

Some sets do not require that the 68000 be in place. As a result, rips can be more optimal
by just emulating a Z80 CPU and not needing to go through initialization code, etc.

The parameters are:

4 bytes "Z80?"
2 bytes load address in Z80 memory
4 bytes initial 68K memory pointer
x bytes data

Note that by using this section, all other CPUs are halted.
Also, this might not work with all Z80 music drivers, as it is only a concept and may not be needed.
SMPS Z80 sound code offset by unknownfile at 10:21 AM EST on March 5, 2008
Write the sound code to 0x1C0A, receive sound. Hopefully.
regarding the above by unknownfile at 8:53 PM EST on March 5, 2008
Confirmed this method to work with:

- Battletoads
- Sonic 3
- Sonic Crackers (and Knuckles' Chaotix)
- Phantasy Star 3
- Phantasy Star 4

Still have more games to test...
by Richter X at 10:38 PM EST on March 5, 2008
Kickass! Can't wait until Snatcher can be ripped.

*Thumbsup!*

Previous Page | Next Page
Go to Page 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217

Search this thread

Show all threads

Reply to this thread:

User Name Tags:

bold: [b]bold[/b]
italics: [i]italics[/i]
emphasis: [em]emphasis[/em]
underline: [u]underline[/u]
small: [small]small[/small]
Link: [url=http://www.google.com]Link[/url]

[img=https://www.hcs64.com/images/mm1.png]
Password
Subject
Message

HCS Forum Index
Halley's Comet Software
forum source
Generated in 0.019s;