Posted by never-obsolete

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The mmc3 always maps the last 8K of prg into $E000-$FFFF.

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Posted by never-obsolete

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So for SMB3, the math would be:

((2 * 0x10) - 1) * 8K
(0x1F) * 0x2000 = 0x3E000

0x3C000 will be mapped to $C000-$DFFF (mode0) or $8000-$9FFF (mode1).

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Posted by never-obsolete

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On start-up, you can't really assume what prg bank mode the mapper will be set to or what will be mapped into $8000, $A000, or $C000. You'll want to point your vector to somewhere in $E000 and initialize the mapper from there.

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$B758:AD 02 20  LDA $2002 = #$10  ; Wait for vblank

$B75B:10 FB     BPL $B758



$B75D:A9 00     LDA #$00           ; Set $2006 to tile $00 on the left side of the PPU, we're writing to that tile

$B75F:8D 06 20  STA $2006 = #$C1

$B762:A9 00     LDA #$00

$B764:8D 06 20  STA $2006 = #$C1



; Loop code

$B767:A2 00     LDX #$00

$B769: BD 78 B7 LDA $B778,X @ $B779 = #$10

$B76C:8D 07 20  STA $2007 = #$00

$B76F:E8        INX

$B770:E0 10     CPX #$10

$B772: D0 F5    BNE $B769



; Graphics table.  16 bytes make up one 8x8 tile.

$B778:00        BRK

$B779:10 1B     BPL $B796

$B77B:1F        UNDEFINED

$B77C:1F        UNDEFINED

$B77D:1F        UNDEFINED

$B77E:1F        UNDEFINED

$B77F:0F        UNDEFINED

$B780:00        BRK

$B781:00        BRK

$B782:00        BRK

$B783:00        BRK

$B784:00        BRK

$B785:00        BRK

$B786:00        BRK

$B787:00        BRK

Posted by snarfblam

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I had been thinking all along that the Link graphics form LA might better suit the rest of the tileset, but it occurs to me now that there might be one possible issue: the uncanny valley.

Basically, you're adding all these features, like falling off ledges, charging the sword, and the Pegasus boots, to the original Zelda game. This is, of course, completely awesome. You're using graphics from LA too, which is pretty sweet. But if your game looks too much like Link's Awakening (especially the character), the player's mind might start to notice and pick out everything that isn't exactly like Link's Awakening. There's no flip animation when you jump off a ledge, and you can't walk around with a charged sword, and so on.

Don't get me wrong. I'm not complaining about these things, but when you look at a game that so closely resembles LA, it might be a little jarring at first when it doesn't feel just like LA. Your souped up Zelda 1 might feel more like a Link's Awakening knock off. Generally, the uncanny valley is a subconscious effect, so you may not even be able to put your finger on what that "off" feeling is.

I don't really know if that will actually be the case. I know I'm probably putting way too much thought into this, and the best way to find out is to try it anyways, but it's food for thought.

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Posted by infidelity

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Im thinking of going back to the original Zelda 1 gfx, and come up with enhancement ideas for them. The sprites will be staying the same. Im feeling confident about this idea/concept. I have more freedom designing since i rewrote the entire engine.

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