arch/m68k/ifpsp060/CHANGES

Source file repositories/reference/linux-study-clean/arch/m68k/ifpsp060/CHANGES

File Facts

System
Linux kernel
Corpus path
arch/m68k/ifpsp060/CHANGES
Extension
[no extension]
Size
4725 bytes
Lines
121
Domain
Architecture Layer
Bucket
arch/m68k
Inferred role
Architecture Layer: arch/m68k
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP
M68000 Hi-Performance Microprocessor Division
M68060 Software Package
Production Release P1.00 -- October 10, 1994

M68060 Software Package Copyright © 1993, 1994 Motorola Inc.  All rights reserved.

THE SOFTWARE is provided on an "AS IS" basis and without warranty.
To the maximum extent permitted by applicable law,
MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED,
INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
and any warranty against infringement with regard to the SOFTWARE
(INCLUDING ANY MODIFIED VERSIONS THEREOF) and any accompanying written materials.

To the maximum extent permitted by applicable law,
IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
(INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS,
BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS)
ARISING OF THE USE OR INABILITY TO USE THE SOFTWARE.
Motorola assumes no responsibility for the maintenance and support of the SOFTWARE.

You are hereby granted a copyright license to use, modify, and distribute the SOFTWARE
so long as this entire notice is retained without alteration in any modified and/or
redistributed versions, and that such modified versions are clearly identified as such.
No licenses are granted by implication, estoppel or otherwise under any patents
or trademarks of Motorola, Inc.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

CHANGES SINCE LAST RELEASE:
---------------------------

1) "movep" emulation where data was being read from memory
was reading the intermediate bytes. Emulation now only
reads the required bytes.

2) "flogn", "flog2", and "flog10" of "1" was setting the
Inexact FPSR bit. Emulation now does not set Inexact for
this case.

3) For an opclass three FP instruction where the effective addressing
mode was pre-decrement or post-increment and the address register
was A0 or A1, the address register was not being updated as a result
of the operation. This has been corrected.

4) Beta B.2 version had the following erratum:

	Scenario:
	---------
	If {i,d}mem_{read,write}_{byte,word,long}() returns
	a failing value to the 68060SP, the package ignores
	this return value and continues with program execution
	as if it never received a failing value.

	Effect:
	-------
	For example, if a user executed "fsin.x ADDR,fp0" where
	ADDR should cause a "segmentation violation", the memory read
	requested by the package should return a failing value
	to the package. Since the package currently ignores this
	return value, the user program will continue to the
	next instruction, and the result created in fp0 will be
	undefined.

	Fix:
	----
	This has been fixed in the current release.

	Notes:
	------

Annotation

Implementation Notes