r_memr:	0.026 - 0.020 without pad
r_memw:	0.021
r_add:	0.013 /*Called many many times*/
r_bra:	whole 0.030 just before delay slot 0.008
addi(RN,1,RN): 0.007
SAVE_REG: 0.014
LOAD_REG: 0.017
