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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 | 64669 | LD A,(HL) | Load the raw stream byte from HL. | |
| 64670 | ADD A,12 | Bias it by 12 for the table index. | ||
| 64672 | LD E,A | Copy the index into E. | ||
| 64673 | LD D,0 | Clear D so DE holds the table offset. | ||
| 64675 | LD HL,64832 | Point HL at Table_MenuMusicDelay. | ||
| 64678 | ADD HL,DE | Index into the table. | ||
| 64679 | LD H,(HL) | Fetch the delay high byte into H. | ||
| 64680 | LD L,1 | Load the delay low byte with 1. | ||
| 64682 | RET | Return. | ||
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