using variables as part of another variable

[+atari2600land]

why can't I do this:

p=(player0x-57)/4
if o{1} && k>9 && a{p} then k=0 : l=0 : m=0 : n=0

and what is a workaround to it?

[+Random Terrain]

I thought curly brackets could only have 0 through 7 in them, representing the 8 bits?

[+atari2600land]

But what if, in my example, I make it so p can't be higher than 7?

[+Random Terrain]

But what if, in my example, I make it so p can't be higher than 7?

This seems familiar. There is a possibility that SeaGtGruff or RevEng talked about this subject before.

[RevEng]

This seems familiar. There is a possibility that SeaGtGruff or RevEng talked about this subject before.

It might have been SeaGtGruff or batari... I don't think it was me.

 

The reason a variable doesn't work in a bit position check is that bB creates different assembly code lines depending on which bit position you've selected, in order to use the most efficient approach.

 

As a work-around you need to write your own more-flexible/less-efficient code to check the bits.

 

atari2600land, here's your original example with a flexible check...

 

 p=(player0x-57)/4
 temp1=bits[p]&a
 if o{1} && k>9 && temp1<>0 then k=0 : l=0 : m=0 : n=0

 data bits
 %00000001, %00000010, %00000100, %00001000
 %00010000, %00100000, %01000000, %10000000
end