On 2015-10-10, at 00:09, Robin Vowels wrote:
>
> Well, you can always use MH, but it won't overflow.
>
Oh, it overflows; it's just not reported. I've always believed
that STH should set overflow if bits 0-15 are not sign extension
of bit 16.
I've used MH; SLA 16 and M; SLDA 32 to detect
I always use "YREGS", haven't had the need for AR type regs.
Scott
On Saturday, October 10, 2015, Brent Longborough
wrote:
> > Date: Thu, 8 Oct 2015 14:19:10 -0400 From: Tom Marchant
> > > Subject: Re: BXLE considered
> harmful On
From: "Brent Longborough"
Sent: Saturday, October 10, 2015 4:05 PM
First, the answer is no. It is perfectly valid, IMO, to expect your
readers to "know" precisely how an instruction works.
That said, given two possible code constructs which are *reasonably
close* in