All values for size("sz") are DWORDs
Other parameters are QWORDs/QWORD PTRs
AddXL
ptr1, ptr2, sz1, sz2
SubXL
ptr1, ptr2, sz1, sz2
mulInt64
m, ptr, sz
divInt64
d, ptr*, rngPak
rngpak: High Dword - number of zero 64 bit digits on the "right"
Low Dword - size
ptr - to the "leftmost" digit in memory
NegateXL
sz, ptr
cmpsqProc
count, ptr1*, ptr2*
findTopDigit
count, ptr*
findBotDigit
count, ptr
AddQW
ptr, value
incXL
ptr
decXL
ptr