===== 04 MQT M2 QUANT TABLE | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 1F801DAA
Mono 8 bit signed, one block of only DC 100 (then DC -100), the first byte, with
the luminance quant table's entry 0 as shown and q_scale 0, 1, 2, 63 in the DC
halfword (decompression.txt:23-27: DC is not scaled by q_scale; q_scale 0 is x2).
quant[0]   0: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0]   1: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0]   2: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0]   3: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0]   4: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0]   8: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0]  16: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0]  64: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
quant[0] 255: 80(104) 80(104) 80(104) 80(104) | 80(104) 80(104) 80(104) 80(104)
One AC of 10 at zigzag 1 after DC 0: quant[1] and q_scale as shown, words 0 and 1
((AC x quant x q_scale + 4) / 8, decompression.txt:33):
quant[1]   1: qs1  0FFCFD80 F35F2CE0 qs2  0FFCFD80 F35F2CE0 qs8  0FFCFD80 F35F2CE0 qs63 0FFCFD80 F35F2CE0
quant[1]   2: qs1  0FFCFD80 F35F2CE0 qs2  0FFCFD80 F35F2CE0 qs8  0FFCFD80 F35F2CE0 qs63 0FFCFD80 F35F2CE0
quant[1]  16: qs1  0FFCFD80 F35F2CE0 qs2  0FFCFD80 F35F2CE0 qs8  0FFCFD80 F35F2CE0 qs63 0FFCFD80 F35F2CE0
quant[1] 255: qs1  0FFCFD80 F35F2CE0 qs2  0FFCFD80 F35F2CE0 qs8  0FFCFD80 F35F2CE0 qs63 0FFCFD80 F35F2CE0
Saturation: AC +511 and -512 at zigzag 1, quant 255, q_scale 63 (clamped to +-400h,
decompression.txt:27), against AC +127 at quant 64 q_scale 1:
 AC  511: crc 7A6A8F92, 0FFCFD80 F35F2CE0
 AC -512: crc 7A6A8F92, 0FFCFD80 F35F2CE0
 AC  127: crc 7A6A8F92, 0FFCFD80 F35F2CE0
Cr and Cb quant: a colour macroblock with Cr DC 200 only, the colour table's entry 0
set to 1, 2, 4 while the luminance table stays standard (15 bit, first pixel): FD80 FD80 FD80
Done.