Nintendo GAME BOY Programming Manual page 199

Symbol Code
V10 0x00
V20 0x01
V30 0x02
V40 0x03
V45 0x04
V50 0x05
V55 0x06
V60 0x07
V65 0x08
V70 0x09
V75 0x0A
V80 0x0B
V85 0x0C
V90 0x0D
V95 0x0E
V99 0x0F
P20 0x00
P40 0x10
P50 0x20
P60 0x30
P70 0x40
P80 0x50
P90 0x60
P99 0x70
Symbol input example: P99+V99
*When setting score data using symbols, assemble after defining the equal statement according
to the table above.
d7 d6 d5 d4 d3 d2 d1 d0 Rate
x x x x 0 0
x x x x 0 0
x x x x 0 0
x x x x 0 0
x x x x 0 1
x x x x 0 1
x x x x 0 1
x x x x 0 1
x x x x 1 0
x x x x 1 0
x x x x 1 0
x x x x 1 0
x x x x 1 1
x x x x 1 1
x x x x 1 1
x x x x 1 1
x 0 0 0 x x
x 0 0 1 x x
x 0 1 0 x x
x 0 1 1 x x
x 1 0 0 x x
x 1 0 1 x x
x 1 1 0 x x
x 1 1 1 x x
Code input example: 70h+ 0Fh
199
Chapter 7: Super Game Boy Sound
0 0 VELOCITY=010%
0 1 VELOCITY=020%
1 0 VELOCITY=030%
1 1 VELOCITY=040%
0 0 VELOCITY=045%
0 1 VELOCITY=050%
1 0 VELOCITY=055%
1 1 VELOCITY=060%
0 0 VELOCITY=065%
0 1 VELOCITY=070%
1 0 VELOCITY=075%
1 1 VELOCITY=080%
0 0 VELOCITY=085%
0 1 VELOCITY=090%
1 0 VELOCITY=095%
1 1 VELOCITY=099%
x x GATE_TIME=020%
x x GATE_TIME=040%
x x GATE_TIME=050%
x x GATE_TIME=060%
GATE_TIME=070%
x x
x x GATE_TIME=080%
x x GATE_TIME=090%
x x GATE_TIME=099%