(newbie problem #2?): make can't find my implicit rule

[Andy Voelkel]

I've got two different kinds of source files. Here are the implicit
rules I've defined:

%.obj:%.c
        $(DSPTOOLS)\cl500 $(COPT) -fr $(OBJDIR) -cg -i$(INCDIR) $<

%.obj:%.asm
        $(DSPTOOLS)\asm500 $(AOPT) -v548 -i$(INCDIR) $< $(OBJDIR)/$(@F)

Gmake seems to be perfectly happy to build obj files out of c files, but
not asm files. I looked at the debug output, and make says it can't find
an implicit rule.

Any idea why?

- Andy Voelkel