ALIGN command

marc_256 · Joined: 01 Nov 2009 Posts: 12 Location: Belgium

Hello,
I it possible to add the 'ALIGN' command in the easy68k assembler/editor ?
Is it also possible to add selection for W and L ?

Thanks,
Marc
_________________
Greetings from Belgium
Hobby robot builder
www.marc-systems.be

profkelly · Posted: Sat Nov 28, 2009 11:00 pm Post subject:

A suggested syntax. Comments?

Syntax: align alignment[, [fill][, max]]

Pad the location counter (in the current subsection) to a particular storage boundary. alignment (which must be absolute) is the alignment required, as described below.

fill (also absolute) gives the fill value to be stored in the padding bytes. It (and the comma) may be omitted. If it is omitted, the padding bytes are zero.

max is also absolute, and is also optional. If it is present, it is the maximum number of bytes that should be skipped by this alignment directive. If doing the alignment would require skipping more bytes than the specified maximum, then the alignment is not done at all. You can omit the fill value (the second argument) entirely by simply using two commas after the required alignment.

Examples:

marc_256 · Joined: 01 Nov 2009 Posts: 12 Location: Belgium

Hello,

This is very nice.
It is even more than I dreamed of.

For me, I can save a lot of time with this extra command.

align 2 force word align
align 4 force long word align

Is it also possible to add the syntax 'ALIGN',
for always aligning on long addresses.

Thanks very much.
Best regards,
Marc
_________________
Greetings from Belgium
Hobby robot builder
www.marc-systems.be

paulrsm · Joined: 20 Jun 2005 Posts: 14

Can this be done with a macro?

paulrsm · Joined: 20 Jun 2005 Posts: 14

Here are some other (better) macros.

If Marc just wants to type ALIGN and have it always align to long, then this macro will fullfill his needs.

marc_256 · Joined: 01 Nov 2009 Posts: 12 Location: Belgium

Hi paulrsm,

Yes, the reason I like to use ALIGN are two older 'DOS' working assemblers.
One of them 'PseudoAsm' uses '.ALIGN' and the other just 'ALIGN'.

The .ASM software for my robot takes about 1.5 Mb as an assembler file.
So a lot of work to change it for the EASY68K software.

I'm also rewriting an older assembler who works on my 68K SBC.
So I do not have to use the PC anymore.

And there they also use the 'ALIGN' command.

Thanks for the input,
greetings,
Marc
_________________
Greetings from Belgium
Hobby robot builder
www.marc-systems.be

profkelly · Posted: Tue Dec 01, 2009 5:12 am Post subject:

Using a macro is a viable solution that does not require any modification of the EASy68K code , which is less work for me Smile

. I will consider this wish granted.
_________________
Prof Chuck Kelly