UnifiedMT15: Reverse Engineering Project for the Stunts 1.0/1.1 MT15.DRV

[llm]

Reverse engineered and C ported MT15.DRV (MT32-Sound-Driver) of Stunts 1.0 and 1.1

• Assembler source can be rebuild to 100% binary exact version of the original
• Assembler can be partially mixed with C ported functions or all functions can be replaced by C code

Reason for doing it:

Stunts 1.0 MT15.DRV seems to sound better than the 1.1 version (some strange slowdowns happen)
i just wanted to understand what the differences are and how to port that stuff to C

Result: the timing code is different - but only some lines of assembler nothing big

https://github.com/LowLevelMahn/UnifiedMT15

[Daniel3D]

Is this difference isolated to the Mt driver?

[llm]

search for "#if VERSION" in https://github.com/LowLevelMahn/UnifiedMT15/blob/main/drv.c

just a few places

[Daniel3D]

I mean, are the drivers for the other soundcards also different in 1.0 and 1.1 or is the timing the same for those?

[llm]

I mean, are the drivers for the other soundcards also different in 1.0 and 1.1 or is the timing the same for those?

i did not revesed other drivers deeply - but they seem very different