Hello all, i am new here and this is my first post. I am a n00b in this case, and really don't know how to do it. so it would be great if u kindly show me the right way to do it.
For instance the following instructions provides wrong result, how to make it right ??
;; just to remind you [BITS 16]
;; lba = offset_from_partition_table + data_lba_begin + (cluster_no - 2) * sectors_per_cluster
AND EAX, 0x0000FFFF
SUB EAX, 2
XOR ECX, ECX
MOV CL, [SectorsPerCluster]
MUL ECX
ADD EAX, DWORD [DataAreaStart]
ADD EAX, [LBAStart]
;MOV EAX, 969434
MOV [DAP + 8], EAX
CALL ReadSectorsLBA_My code is right coz the result should be 969434 and if i put it directly it gives desired result. But the formula isn't wrong , plz help me correct it and understand mixing up 32 Bit calculation in 16 bit program. Regards and thanx in advance.