SF2 letter box removal patch

SF2 letter box removal patch
by psycopathicteen on 2016-09-09 (#179248)

Here's a simple patch with bass.exe to make the letter boxing smaller on Street Fighter 2 Turbo. There are two glitches:

1) HDMA parallax is messed up
2) Sometimes the screen flashes blacks when fighting Zangief vs Zangief.

Code:

arch snes.cpu

macro seek(n) {
   origin ({n} & 0x7fffff)
   base {n}
}

seek($80044f)
lda #$06              //scanline of first IRQ previously 20

seek($800524)
lda #$08              //scanline of second IRQ previously 22

Re: SF2 letter box removal patch
by suFami on 2016-09-10 (#179271)

This patch is pretty cool. Too bad about the parallax issues at the bottom of the screen. Also, it's kind of weird not having the life bar/clock at the very top of the screen.

Re: SF2 letter box removal patch
by Stef on 2016-09-11 (#179353)

Cool patch, is there a way to smaller a bit the original letter boxing while removing remaining bugs (black screens in Zangief battle) ? or they were already on the edge of DMA bandwidth ?