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Re: How to protect 65816's 16MB Memory?
- Subject: Re: How to protect 65816's 16MB Memory?
- From: Eric Smith <eric@brouhaha.com>
- Date: 10 Feb 2005 19:33:22 -0800
- Newsgroups: comp.sys.apple2
- Organization: Eric Conspiracy Secret Labs
- References: <MPxOd.46134$iC4.31797@newssvr30.news.prodigy.com>
- Sender: eric@ruckus.brouhaha.com
- User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3
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"Bryan Parkoff" <nospam@nospam.com> writes:
> Do you have idea why it does not have protected mode feature
> in 65816 CPU like 80x86 CPU?
Because it was only intended to be a 16-bit extension of the 6502,
not an all-singing all-dancing workstation processor with paged
memory management.
Look at the 1986-1987 prices of microprocessors with "protected mode",
and compare them with the prices at that time of the 65816/65C816.