Where can I find Motorola as format?

[PaperPilot]

I have a large (40,000 line) assembly program for the M680040 processor which I am porting to run on VxWorks. Trouble is VxWorks uses C language calls to access system services. I can write a C routine calling a service and compile it with an option that produces a .s assembly file, but the assembly is in as format while my code is in asm format.

It's been years since I had an as assembler and I've forgotten the nuances of the as format. Does anyone know where I can find a reference on the as format assemble language for the Motorola M68k processor family?

PaperPilot

 

[ADoozer]

not sure if it helps but there are a few links at

http://en.wikipedia.org/wiki/Motorola_68000

specifically

http://www.romhacking.net/docs/68000 opcodes.pdf

and

http://www.freescale.com/files/archives/doc/ref_manual/M68000PRM.pdf

If somethings hard to do, its not worth doing - Homer Simpson

 

[PaperPilot]

These reference all use the asm format. Here is an example of what I am seeing:

.global _helloWorld
_hellowWorld:
pea a6@
movel sp.a6
pea 20:w
jbsr _exit
unlk a6
rts


For example, the asm format does not have a jbsr operation. There is:

jsr - jump to subroutine
bsr - branch to subroutine

An is the operand a6@ the same as (a6)? I don't know.

PaperPilot
Simulation programmer
Shuttle Training Aircraft

 

[ADoozer]

in that case i have no idea.

maybe the MIT to Motorola and Motorola to MIT conversion program here can help you?

ftp://ftp.luth.se/pub/misc/motorola/m68k.

If somethings hard to do, its not worth doing - Homer Simpson