Assembler question

micman2

Hi all,
How I do convert this function C in assembler PASM

flag = 0;

if ( flag == 0 ) & ( Pin_7 == 1) {
flag = 1;
....
.......
.....
} else if ( flag == 1 ) & ( Pin_7 == 0 ) {
flag = 0;
....
.......
.....
}

Mark_T

Something like:

        mov    flag, #0
        ...
        ...
        cmp    flag, #0  wz
  if_z  cmp    Pin_7, #1  wz
  if_nz jmp    #:elseif
        mov    flag, #1
        ....
        ....
        jmp    #:end
:elseif cmp    flag,  #1  wz
  if_z  cmp    Pin_7, #0  wz
  if_nz jmp    #:end
        mov    flag, #0
        ...
        ...
:end

micman2

good, thanks you!

JonnyMac

I think this might work, too:

cmp     flag, #0                wz
                        test    p7mask, ina             wc
        if_z_and_c      mov     flag, #1
        if_nz_and_nc    mov     flag, #0

Still, value in flag could simply follow what's on P7 -- unless flag is able to have a non-zero value other than one (and if that's the case, my code is bogus).