Argh.

gistfile1.txt

  // initial DC flags (assuming blocks don't have ACs)
  for( i = 0 ; i < num_blocks ; i++ )
00000104B876617C 45 85 D2             test        r10d,r10d  
00000104B876617F 74 21                je          gpu_dec_coeffs+0C2h (0104B87661A2h)  
00000104B8766181 4C 8B 84 24 80 09 00 00 mov         r8,qword ptr [dcs]  
00000104B8766189 48 8B D6             mov         rdx,rsi  
00000104B876618C 4D 8B CA             mov         r9,r10  
00000104B876618F 90                   nop  

<loop here>
00000104B8766190 4D 8D 40 04          lea         r8,[r8+4]  
00000104B8766194 48 8D 52 02          lea         rdx,[rdx+2]  
00000104B8766198 49 FF C9             dec         r9  
00000104B876619B 75 F3                jne         gpu_dec_coeffs+0B0h (0104B8766190h)  
00000104B876619D 4C 8B 44 24 10       mov         r8,qword ptr [rsp+10h]  
    dcflags[ i ] = ENCODE_DC_FLAGS_GPU( dcs[ i ], 3, dctype );