Pass bB constants to assembly?

[+Gemintronic]

So, I'm trying to save variables yet again. I'm thinking that a status bar color will never change during the game and want to use a constant. How would I declare a constant in bB and have it referenced in the assembly code of a mini kernel?

 

For instance, I changed the color of the status bar to yellow (#$2F) in 6lives_statusbar.asm

 

 ifconst statusbarcolor
 ; only write COLUPF if color variable exists, otherwise use existing PF color
 lda #$2E
 sta COLUPF
 endif

How would I declare a constant in bB

const _mystatusbarcolor = $2E

and have that replace the

lda #$2E

in the code?

[RevEng]

The "#$2E" in the original ASM isn't a memory location, it's a literal constant value. So no memory would be saved by substituting your bB constant for the #$2E.

 

If you want it just for convenience, then you can just put "lda #_mystatusbarcolor" in the asm code, instead of "lda #$2E".

[+Gemintronic]

The "#$2E" in the original ASM isn't a memory location, it's a literal constant value. So no memory would be saved by substituting your bB constant for the #$2E.

 

If you want it just for convenience, then you can just put "lda #_mystatusbarcolor" in the asm code, instead of "lda #$2E".

 

Holy cow that's amazing!! Thank you for the tip!! ^_^