Mario has pixel tearing on top rows while running

[elp2]

It appears that SCX is set, and then set back to zero. Occasionally, this happens after we have started rendering rows 0, 1 which means that they may be somewhat torn. This is probably a timing issue.

setscx: 8f
setscx: 0
Frame cycles: 70224
Ending AOF
Starting AOF
0: scx: 0 shift 0 bgx_ = 130
bgx now: 0
Getting bg tile: 0x0 x 0x0 from 9160
Getting bg tile: 0x8 x 0x0 from 90a0
PO0
Getting bg tile: 0x10 x 0x0 from 91b0
Getting bg tile: 0x18 x 0x0 from 9120
Getting bg tile: 0x20 x 0x0 from 9180
Getting bg tile: 0x28 x 0x0 from 92b0
Getting bg tile: 0x30 x 0x0 from 9000
Getting bg tile: 0x38 x 0x0 from 9020
Getting bg tile: 0x40 x 0x0 from 92c0
Getting bg tile: 0x48 x 0x0 from 92c0
Getting bg tile: 0x50 x 0x0 from 9200
Getting bg tile: 0x58 x 0x0 from 9180
Getting bg tile: 0x60 x 0x0 from 91b0
Getting bg tile: 0x68 x 0x0 from 9150
Getting bg tile: 0x70 x 0x0 from 90d0
Getting bg tile: 0x78 x 0x0 from 92c0
Getting bg tile: 0x80 x 0x0 from 91d0
Getting bg tile: 0x88 x 0x0 from 9120
Getting bg tile: 0x90 x 0x0 from 9160
Getting bg tile: 0x98 x 0x0 from 90e0
Getting bg tile: 0xa0 x 0x0 from 92c0
1: scx: 0 shift 0 bgx_ = a0
2: scx: 0 shift 0 bgx_ = a0
setscx: 90 <<< Set here
Frame cycles: 70228
Ending AOF
Starting AOF
0: scx: 90 shift 0 bgx_ = 130 <<<<<< Row 0 rendererd with this way too high SCX (should be 0)
bgx now: 90
Getting bg tile: 0x90 x 0x0 from 9160
Getting bg tile: 0x98 x 0x0 from 90e0
PO0
Getting bg tile: 0xa0 x 0x0 from 92c0
Getting bg tile: 0xa8 x 0x0 from 92c0
Getting bg tile: 0xb0 x 0x0 from 92c0
Getting bg tile: 0xb8 x 0x0 from 92c0
Getting bg tile: 0xc0 x 0x0 from 92c0
Getting bg tile: 0xc8 x 0x0 from 92c0
Getting bg tile: 0xd0 x 0x0 from 92c0
Getting bg tile: 0xd8 x 0x0 from 92c0
Getting bg tile: 0xe0 x 0x0 from 92c0
Getting bg tile: 0xe8 x 0x0 from 92c0
Getting bg tile: 0xf0 x 0x0 from 92c0
Getting bg tile: 0xf8 x 0x0 from 92c0
Getting bg tile: 0x100 x 0x0 from 9160
Getting bg tile: 0x108 x 0x0 from 90a0
Getting bg tile: 0x110 x 0x0 from 91b0
Getting bg tile: 0x118 x 0x0 from 9120
Getting bg tile: 0x120 x 0x0 from 9180
Getting bg tile: 0x128 x 0x0 from 92b0
Getting bg tile: 0x130 x 0x0 from 9000
1: scx: 90 shift 0 bgx_ = 130
setscx: 0 << Reset here
2: scx: 0 shift 0 bgx_ = 130
setscx: 91
setscx: 0
Frame cycles: 70224