===== 11 MSK GPU MASK BIT | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
Mask bit (E6h; rendering-attributes.txt:123-137). Background 8421h/0421h alternating.
GPUSTAT 5606200F at start
write 1234h, read 1234
set mask, write 0000h, read 8000
8000h there, check mask, write 1234h, read 8000
8123h then 0456h, read 0456
set mask 0000h, then no mask 0456h, read 0456
E6 0 tile: 001F 001F 001F 001F 001F 001F 001F 001F
E6 0 quad: 001F 001F 001F 001F 001F 001F 001F 001F
E6 0 line: 001F 001F 001F 001F 001F 001F 001F 001F
E6 0 raw sprite texel 45xx: 4500 4501 4502 4503 4504 4505 4506 4507
E6 0 fill 02h: 001F 001F 001F 001F 001F 001F 001F 001F
E6 0 copy 80h from 7FFFh: 7FFF 7FFF 7FFF 7FFF 7FFF 7FFF 7FFF 7FFF
E6 0 A0h write 1234h: 1234 1234 1234 1234 1234 1234 1234 1234
check tile: 8421 001F 8421 001F 8421 001F 8421 001F
check quad: 8421 001F 8421 001F 8421 001F 8421 001F
check line: 8421 001F 8421 001F 8421 001F 8421 001F
check raw sprite texel 45xx: 8421 4501 8421 4503 8421 4505 8421 4507
check fill 02h: 001F 001F 001F 001F 001F 001F 001F 001F
check copy 80h from 7FFFh: 8421 7FFF 8421 7FFF 8421 7FFF 8421 7FFF
check A0h write 1234h: 8421 1234 8421 1234 8421 1234 8421 1234
set tile: 801F 801F 801F 801F 801F 801F 801F 801F
set quad: 801F 801F 801F 801F 801F 801F 801F 801F
set line: 801F 801F 801F 801F 801F 801F 801F 801F
set raw sprite texel 45xx: C500 C501 C502 C503 C504 C505 C506 C507
set fill 02h: 001F 001F 001F 001F 001F 001F 001F 001F
set copy 80h from 7FFFh: FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF
set A0h write 1234h: 9234 9234 9234 9234 9234 9234 9234 9234
set+check tile: 8421 801F 8421 801F 8421 801F 8421 801F
set+check quad: 8421 801F 8421 801F 8421 801F 8421 801F
set+check line: 8421 801F 8421 801F 8421 801F 8421 801F
set+check raw sprite texel 45xx: 8421 C501 8421 C503 8421 C505 8421 C507
set+check fill 02h: 001F 001F 001F 001F 001F 001F 001F 001F
set+check copy 80h from 7FFFh: 8421 FFFF 8421 FFFF 8421 FFFF 8421 FFFF
set+check A0h write 1234h: 8421 9234 8421 9234 8421 9234 8421 9234
E6 0, tile B+F 080808h over 8421h/0421h: 0842 0842 0842 0842 0842 0842 0842 0842
E6 0, raw sprite texels C210h x4, 4210h x4: C210 C210 C210 C210 4210 4210 4210 4210
set, semi raw sprite C210h x4 4210h x4 (mode 0): A108 A108 A108 A108 C210 C210 C210 C210
GPUSTAT bits 11-12 after E6h FFFFFFh: 3
GPUSTAT bits 11-12 after E6h FFFFFCh: 0
Waits that ran out: 0
Done.