Rework how local labels work

[Fubukimaru]

In the case of the macro, you cannot use any label inside because the name will be duplicated. For instance, something stupid like:

LOCO: MACRO #a, #b
    jpnz .nothing
    ld  a, #a
    ld  a, #b
.nothing:
    xor a
ENDMACRO

It will complain .nothing already exists when using the macro twice. I assume that this is not the desired way of working in case we have a loop inside the macro.

My proposal would be to modify how the local labels work. I have seen in some assemblers that they refer to local labels using the previous global, for example: A global named MAN and then a local defined as .GLER. Internally the local label would be MAN.GLER.

This way we would be able to repeat local label names. I have to get more information about other assemblers to check how they behave.

[Fubukimaru]

When calling macros we should add the label like:

LOCO 1, 2
LOCO 3, 4

Would be:

LOCO_MACRO_1:
    jpnz .nothing
    ld  a, 1
    ld  a, 2
.nothing:
    xor a
   
LOCO_MACRO_2:
    jpnz .nothing
    ld  a, 3
    ld  a, 4
.nothing:
    xor a

Or directly:

LOCO_1:
    jpnz .nothing
    ld  a, 1
    ld  a, 2
.nothing:
    xor a
   
LOCO_2:
    jpnz .nothing
    ld  a, 3
    ld  a, 4
.nothing:
    xor a

[Fubukimaru]

There is a bug in how this works at the moment: #88