assembly - x86 question about bit comparisons -

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im having problem final part of assignment. in stream of bits, etc etc, in stream integer number of 1's in text portion. integer , 24 correct, loop through text data , try count 1's in there. proc returning zero.

i able make sure looping , is.

the text = hello 16 1's, here proc looping through text count number of ones in it.

sub     ax,ax sub     si,si mov     bx,[bp+6]       ;get message offset      @@mainloop:     mov     cx,8     mov     dh,80h     cmp     byte ptr [bx + si],0     je      @@endchecker @@innerloop:     test    byte ptr [bx + si],dh     jz      @@zerofound     inc     ax     @@zerofound:         shr     bh,1         loop    @@innerloop          @@continue:         inc     si         jmp     @@mainloop

the rest of proc push/pops. im wanting use test compare 100000000 byte, if 1 inc ax else shift right mask 1 , loop whole byte, inc next byte , again.

'shr bh,1' should 'shr dh,1', no?


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