Error compiling wram.asm with rgbasm v0.3.2-20-g4877e6d about pokered

[dannye]

Yeah... That's because declaring negative space is no longer allowed. We used to declare the stack with negative space too, but that got changed.

wWaterRate:: db ; d8a4
wWaterMons:: db ; d8a5

	ds wWaterRate - @

wEnemyMons:: ; d8a4

The problem is that wWaterRate and wEnemyMons are at the same address, and there's no easy way declare wWaterMons as the byte after wEnemyMons since wEnemyMons uses the party_struct macro.
Using ds wWaterRate - @ (which evaluates to -2) was the best solution.

[yenatch]

0.3.2 added unions (gbdev/rgbds#193) to solve this problem:

UNION

wWaterRate:: db ; d8a4
wWaterMons:: db ; d8a5

NEXTU

wEnemyMons:: ; d8a4
wEnemyMon1:: party_struct wEnemyMon1
wEnemyMon2:: party_struct wEnemyMon2
wEnemyMon3:: party_struct wEnemyMon3
wEnemyMon4:: party_struct wEnemyMon4
wEnemyMon5:: party_struct wEnemyMon5
wEnemyMon6:: party_struct wEnemyMon6

wEnemyMonOT::    ds NAME_LENGTH * PARTY_LENGTH ; d9ac
wEnemyMonNicks:: ds NAME_LENGTH * PARTY_LENGTH ; d9ee

ENDU

[phramos07]

I'm trying to compile it on OSX Yosemite with the newest version of rgbds and I get the same error, but with a different constant.

ERROR: wram.asm(536):
	Constant mustn't be negative: -528
make: *** [wram.o] Error 5

On line 536:

ds wPrinterSerialReceived -@

Anyone knows how to solve this yet? Thanks.

[yenatch]

The - @ cases would need to be replaced with unions to work with rgbds 0.3.3. You can see how this was done in pokecrystal here: pret/pokecrystal@63bc19e

Until then, rgbds 0.2.5 will still work. If you have merged #147 locally you will need to remove the linkerscript flag from the Makefile or roll back.

[Pokechu22]

Pokémon Red doesn't have printer support, so I assume you're using Yellow. For that you want pret/pokeyellow#27 (which does both a linkerscript and unions) (though I'll add that I made that PR and I'm not 100% confident with the changes since I really don't know what I'm doing)