>Number:         4051
>Category:       port-pmax
>Synopsis:       no 64bit mips3 support
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    gnats-admin (GNATS administrator)
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 27 16:05:03 1997
>Last-Modified:
>Originator:     Simon Burge
>Organization:
	IBM Global Services Australia
>Release:        NetBSD-current 970826
>Environment:
System: NetBSD vlad 1.2G NetBSD 1.2G (MONA) #1: Tue Aug 26 06:14:54 EST 1997 simonb@vlad:/usr/src/sys/arch/pmax/compile/MONA pmax

>Description:
        There is currently no support for mips3 (R4000 64 bit) binaries.
        Here's a extract from a message from Jonathan to port-pmax:

                The kernel context-switch code doesn't do the 64-bit
                register saves and restores, so we don't support full
                mips3 binaries yet -- even with a 32-bit address space.
                The same goes for using 32 64-bit FP registers.

                (Using the FP registers is an easy kernel change, but
                the interface to debuggers &c needs more thought.)

>How-To-Repeat:
        Compile a mips3 binary under ultrix, and try to run it on
        NetBSD.
>Fix:
	None given.
>Audit-Trail:
>Unformatted: