The vertical speed in a jump

Mario's initial speed in a jump depends on his velocity and whether the player pressed B or A. It's also possible to have different values by stomping an enemy or dismounting Yoshi. Here we see those values:

Speed	A	B
0, 1, 2, 3, 4, 5, 6, 7	-71	-77
8, 9, 10, 11, 12, 13, 14, 15	-73	-79
16, 17, 18, 19, 20, 21, 22, 23	-75	-82
24, 25, 26, 27, 28, 29, 30, 31	-77	-84
32, 33, 34, 35, 36, 37, 38, 39	-79	-87
40, 41, 42, 43, 44, 45, 46, 47	-82	-89
48, 49, 50, 51, 52, 53, 54, 55	-84	-92
56, 57, 58, 59, 60, 61, 62, 63	-87	-94
64 or higher (Mario can't jump)	2	3

Jumping off of an enemy or sprite after stomping it makes Mario goes up according to the way he fell onto it (spinning or normally):

Falling normally while pressing B or A: -88

Falling normally without pressing B or A: -48

Falling spinning (eg: Shells): -8

Falling spinning (eg: Rex): like when falling normally.

Dismounting Yoshi in the air: -96

Dismounting Yoshi in the ground: -64
Springboard without pressing A or B: -80
Springboard pressing A or B: -128

Therefore, we have the following set of speeds:

{-8, -48, -64, -71, -73, -75, -77, -79, -80, -82, -84, -87, -88, -89, -92, -94, -96, -128}