Starting October 12th, 2023 GitHub is enforcing mandatory two-factor authentication on my account.
I'm not going to comply and move all my activity to GitLab instead.
Any future updates / releases will be available at: https://gitlab.com/gitendo/mad
Thanks and see you there!
Back in the days, when I was happy C64 + 1541 II user, my mate borrowed me a floppy with original release of Voice Tracker 4. Unfortunately without C64 manual, SID technical information and basic knowledge of music tracking I could have only listened to a few amazing tunes...
Taking a trip down memory line I ended up writing a small utility that presents .prg and .sid tunes from HVSC in more readable, mod-tracker like format (something like C=+P in Voice Tracker v4). This might faciliate conversion and serve as a base for new features.
During the process I've discovered that the Voice Tracker was built on top of replay routine from Music Assembler and apart from five different versions there's another editor called Music Mixer (also written by Polonus) which is compatible. Basically there're two versions of replay routine:
- v1 used by Music Assembler and Voice Tracker v1 to v4.2
- v2 used by Voice Tracker v5 and Music Mixer
I didn't bother to compare the code but the tune format seems to be the same. If you're curious src directory contains some disassemblies in 64tass format. These are empty tunes though.
Default output with description:
Music Assembler / Voice Tracker tune found!
Tune addres: $1021
PSID info:
Space Invadarz on Vacation
Richard Bayliss
2001 The New Dimension
+----+---------------------+---------------------+---------------------+
| 00 | *[00](01) C-1 02 01 | *[01](01) A-3 00 07 | *[02](01) C-5 03 01 |
| 01 | ... .. 00 | ... .. 06 | ... .. 00 |
| 02 | C-2 02 01 | ... .. 05 | C-4 03 01 |
| 03 | ... .. 00 | ... .. 04 | ... .. 00 |
| 04 | C-3 02 01 | ... .. 03 | C-6 03 01 |
| 05 | ... .. 00 | ... .. 02 | ... .. 00 |
| 06 | C-1 02 01 | ... .. 01 | C-4 03 01 |
| 07 | ... .. 00 | ... .. 00 | LOOP ... .. 00 |
| 08 | C-2 02 01 | A-3 01 07 | --- -- -- |
| 09 | ... .. 00 | ... .. 06 | --- -- -- |
| 0A | C-3 02 01 | ... .. 05 | --- -- -- |
| 0B | ... .. 00 | ... .. 04 | --- -- -- |
| 0C | C-1 02 01 | ... .. 03 | --- -- -- |
| 0D | ... .. 00 | ... .. 02 | --- -- -- |
| 0E | C-2 02 01 | ... .. 01 | --- -- -- |
| 0F | ... .. 00 | LOOP ... .. 00 | --- -- -- |
| 10 | C-1 02 01 | --- -- -- | --- -- -- |
| 11 | ... .. 00 | --- -- -- | --- -- -- |
| 12 | C-3 02 01 | --- -- -- | --- -- -- |
| 13 | ... .. 00 | --- -- -- | --- -- -- |
| 14 | C-2 02 01 | --- -- -- | --- -- -- |
| 15 | ... .. 00 | --- -- -- | --- -- -- |
| 16 | C-1 02 01 | --- -- -- | --- -- -- |
| 17 | ... .. 00 | --- -- -- | --- -- -- |
| 18 | C-2 02 01 | --- -- -- | --- -- -- |
| 19 | ... .. 00 | --- -- -- | --- -- -- |
| 1A | C-3 02 01 | --- -- -- | --- -- -- |
| 1B | ... .. 00 | --- -- -- | --- -- -- |
| 1C | C#3 02 01 | --- -- -- | --- -- -- |
| 1D | ... .. 00 | --- -- -- | --- -- -- |
| 1E | C-3 02 01 | --- -- -- | --- -- -- |
| 1F | LOOP ... .. 00 | --- -- -- | --- -- -- |
+----+---------------------+---------------------+---------------------+
* - marks one pattern per channel that will be used as restart point if order list ends with LOOP or JUMP command
[] - pattern number
() - pattern repeat value
C-1 02 01 - note, instrument, note length (decreasing)
... - length change of previous note
--- - fade out if lenght is specified or no output (channel stopped)
There're two possible options to use:
-n change notation to German
-u unroll sequences and disable order info and commands
High Voltage SID Collection: Update #75 seems to contain around 5472 compatible tunes however some of them won't work due to minor bugs, code relocation, multi tune structure, etc. Here's what I mean:
Acid_Mix.sid- modified player; init code is relocated to the tune end and original replaced with note: -ACID MIX BY DOUBLE-N '90-- MUSIC AND ROUTINE(C)SYMBOLIX -- USE PLAYER ON $1060/DOUBLE-N -Oriental_Dirge.sid- pattern 00 contains DEL.08 entry stored as $E8 instead of $A8 (this is due to a bug in the v2 & v3 editor which allows entry of bogus values and saves them without checking)Agent_UOP.sid- multi tune with additional code