===== 01 DBS MDEC DMA BLOCK SIZES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 1F801DAA
Step stream, 15 bit unsigned. Per case: whole CRC, then per 16x16 macroblock.
DMA1 blocks of 64: not run in this table.
DMA1 backward from word 1023: done, status 8604FFFF, MADR1 001207B4
  words of the 6464 word buffer changed 512; lowest and highest changed: 512 1023
mb  0 crc 9196A7DC first 7FFC7FFC last 17FF17FF
mb  1 crc 4FCB150A first 68996899 last 145B145B
mb  2 crc 67823B26 first 04210000 last 00000000
mb  3 crc D8058DD0 first 04212108 last 00000000
Done.