generic macpack contains invalid code

[pm100]

; add - Add without carry
.macro  add     Arg1, Arg2
        clc
        .if .paramcount = 2
                adc     Arg1, Arg2
        .else
                adc     Arg1
        .endif
.endmacro

add a,b tries to assemble adc a,b which is not valid code

same is true for the sub macro

the docs do not mention the 2 arg version of add and sub but its very misleading to have this here (I was reading the .mac files in order to work out how to write macros)

[Bob Andrews]

valid for one of the weird 6502 variants perhaps?

[Bob Andrews]

Oh the solution is even easier - this is needed to support the indexed instructions. Ie it lets you write add $1234,y