Tool to convert asm to gnu asm (gas)

[Asman]

I'm looking for some tool which can convert asm source to gnu asm. Mean about some tool (Amiga/PC) which transfer for example

move #33,D0 --> move #33,%D0
clr.l -(sp) --> clrl %sp@-

and so on.

[mark_k]

The two types of syntax are sometimes referred to as Motorola and MIT. So you could google something like: mit motorola syntax convert

Doing that brought up mention of a "mit2mot" program which is probably the same one as at http://ftp.back2roots.org/geekgadget...cc/mit2mot.lha. But that converts from Motorola to MIT syntax, not MIT to Motorola. This comp.sys.amiga.programmer thread from 1995 mentions a mot2mit tool, but I couldn't find that yet.

Update: Found it! mot2mit and mit2mot executables are in http://ftp.fi.netbsd.org/pub/amiga/g...cc263-base.lha

[phx]

Originally Posted by Asman

I'm looking for some tool which can convert asm source to gnu asm.

Why would you want to do that to your sources? There are free and portable cross assemblers which understand the original syntax.

[Thorham]

Originally Posted by phx

Why would you want to do that to your sources?

Because they want to use gnu asm for something

[Toni Wilen]

I think you only need d0 -> %d0 conversion. At least gcc (used in aros m68k) supports both syntax in addressing modes, for example clr.l -(%sp) does work.

[alkis]

Cross-assembling this:

_mysprintf:
            movem.l a2-a3/a6,-(sp)

            move.l  4*4(sp),a3
            move.l  5*4(sp),a0
            lea   	6*4(sp),a1
            lea.l   stuffChar(pc),a2
            move.l  _SysBase,a6
            jsr     _LVORawDoFmt(a6)

            movem.l (sp)+,a2/a3/a6
            rts

with this:
m68k-amigaos-as -version
GNU assembler 2.14

works fine.

[AnimaInCorpore]

You might try the MRI compatibility mode. Also using a good editor to replace the items via the regex replace function would be a good idea.

[jotd]

I'm going to create a python tool to convert MIT to Motorola, to convert Motorola Floating point emulation library so it can be built with vasm.

will be available in my git repo when done.

[Ernst Blofeld]

Originally Posted by jotd

will be available in my git repo when done.

Don't forget to tell 2013 about it when it's ready.

[jotd]

Don't forget to tell 2013 about it when it's ready.

I'm going to write it for my own needs. I'll share it when it's done. I'm aware of the mit2mot tool, but I haven't tried it. At any rate a python tool will be more convenient than a tool in amiga executable format (I didn't see the source of that)

and if there are issues, a post-processing will be needed, so...

[jotd]

btw almost through with my little conversion project (to convert motorola fpsp FPU 68040 emulation)

Stumbled on that strange syntax:

move.l	a1@(d0:l:4),a1

Is that

move.l (a1,d0.l*4),a1

or

move.l (a1,d0.l,4),a1

?

[jotd]

found it by assembling with a non amiga 68k gcc and disassembling with ira. It's

MOVEA.L	(0,A1,D0.L*4),A0

MIT syntax sucks. And mit2mot wasn't even able to convert it either... useless.

[Don_Adan]

Originally Posted by jotd

found it by assembling with a non amiga 68k gcc and disassembling with ira. It's

MOVEA.L	(0,A1,D0.L*4),A0

MIT syntax sucks. And mit2mot wasn't even able to convert it either... useless.

A1 or A0 as destination ? or this assembling bug?

[jotd]

Originally Posted by Don_Adan

A1 or A0 as destination ? or this assembling bug?

sorry, I changed the snipped in the meantime. No, no bug.


tool available https://github.com/jotd666/amiga68kt...ols/mit2mot.py


if you convert sources and you have issues contact me or open an issue on github