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Routines |
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Used by the routine at Play_MenuMusicTick.
Map a raw stream byte through the delay table at Table_MenuMusicDelay into a tone and duration pair returned in HL. The Reload_MusicStreamCursor entry reloads a cursor word and continues at Read_MusicStreamByte_Fetch.
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| Decode_MusicDelay | FC9D | LD A,(HL) | Load the raw stream byte from HL. | |
| FC9E | ADD A,$0C | Bias it by 0C for the table index. | ||
| FCA0 | LD E,A | Copy the index into E. | ||
| FCA1 | LD D,$00 | Clear D so DE holds the table offset. | ||
| FCA3 | LD HL,$FD40 | Point HL at Table_MenuMusicDelay. | ||
| FCA6 | ADD HL,DE | Index into the table. | ||
| FCA7 | LD H,(HL) | Fetch the delay high byte into H. | ||
| FCA8 | LD L,$01 | Load the delay low byte with 01. | ||
| FCAA | RET | Return. | ||
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