===== 02 TGR F3 GPUREAD AFTER | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 1F801DAA
VRAM line at 0,256: 0001 0011 0022 0033 0044 0055 0066 0077; at 0,257: 0044 0055
0066 0077. Each row: C0h at 0,256, every word read, then 4 more GPUREAD loads.
C0h 2x1: 00110001 00000000 00000000 00000000 00000000
C0h 3x1: 00110001 00330022 00110001 00110001 00110001 00110001
C0h 4x1: 00110001 00330022 00110001 00110001 00110001 00110001
C0h 5x1: 00110001 00330022 00550044 00110001 00110001 00110001 00110001
C0h 8x1: 00110001 00330022 00550044 00770066 00110001 00110001 00110001 00110001
C0h 2x2: 00110001 00550044 00110001 00110001 00110001 00110001
C0h 3x2: 00110001 00440022 00660055 00110001 00110001 00110001 00110001
C0h 3x1, 1 more load 00110001, fill of the source, then 00110001 (GPUSTAT D606200F)
C0h 3x1 then GP0(01h): 00110001; C0h 3x1 then GP1(10h) 7: 00000002 00000002
Done.