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Emulator Issues #4437

closed

Zelda DSP HLE doesn't work for SMS's AFC type 5

Added by chiizufish over 13 years ago.

Status:
Fixed
Priority:
Normal
Assignee:
-
% Done:

0%

Operating system:
N/A
Issue type:
Bug
Milestone:
Regression:
No
Relates to usability:
No
Relates to performance:
No
Easy:
No
Relates to maintainability:
No
Regression start:
Fixed in:

Description

The Zelda DSP HLE doesn't seem to produce correct output for the AFC type 5 sounds in Super Mario Sunshine.

As noted in "UCode_Zelda_ADPCM.cpp", Super Mario Sunshine uses AFC type 5 for character sounds - when talked to or jumped on. With the HLE, these are either seemingly muted (main square characters) or quiet and distorted (sunflowers at the start of Pinna Park).

Attached is the latter having been manually extracted and decoded with AFCDecodeBuffer from the Zelda HLE.

The sounds work fine running LLE.

I'm running r7483

I might be able to look into this myself, but has any documentation (other than the DSP LLE code) been written on the opcodes not covered in duddie's guide? Decoding the inner loop ones like "ASRNRX'MV" is a real headache.

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