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Re: [MiNT] EmuTOS for ColdFire
Hi Peter,
this post flew into my mailbox only which is probably my fault since I
only CCed the list in mine.
Nevertheless, I think you're right. This is what I meant with "with
some care". I'd even add to that and claim: using Line-A instructions
in new programs nowadays is probably careless and unnecessary.
Am 02.05.2009 um 14:27 schrieb Peter Persson:
Line-A constitutes a pitfall here. This range of opcodes are used
for MAC-instructions on the ColdFire.
Didier solves this by replacing $a000 with an unused TRAP. This trap
should probably be implemented in freemint for "standard" 68k
machines as well.
ColdFire stuff should run fairly well on 060 CPUs, since AFAIK
complex instructions and address modes are slower than load/store
instructions on the 060.
-- PeP