Format Of Transferred Data - Nintendo GAME BOY Programming Manual

Game Boy Programming Manual
Special
Symbol
ecv
Special
Symbol
edl
Note 1: If echo is not used, specify eof (special symbol) instead of ecv.
Note 2: If a value greater than 2 is specified for Echo Time, the sampling data will be destroyed. Up to
15 tunes can be registered (01h-0Fh). Channels 2 and 3 are allocated for BGM, so these channels
should be used for regular playback of BGM parts.
Microtuning of source data used for notes should be specified using the tun code with the score data.
For tuning values, refer to the recommended tunings in Section 4 of this chapter, SGB Sound Program
Source List (except for percussion instruments).
The recommended tuning values for this source list are based on an interval of C30 (See Section 3.6.4,
Interval Data).
Also indicated for each source data item is the score data setting (interval code) for producing sounds
with a C30 interval. Please refer to these settings in inputting score data.
In high and low areas, the tuning of some source data may be somewhat off. Whenever this occurs, the
tuning value must be modified.
For SGB, all tunings are set 50 cents higher than the standard value (A = 440 Hz).

3.8 Format of Transferred Data

When Using NEWS
1. Copy sgbt.asm to a new transfer file, filename.asm.
% cp sgbt.asm yyy.asm
* When making transfer files, create them based on sgbt.asm.
2. Open yyy.asm and modify it as follows.
Score Data Settings
Echo Channel Echo Volume L Echo Volume R
ΟΟΟ (Note 1)
40
Echo Time Feed Back
2 (Note 2) 90
206
40
Filter No.
2