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Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/ifpsp060/CHANGES')
| -rw-r--r-- | ANDROID_3.4.5/arch/m68k/ifpsp060/CHANGES | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/ANDROID_3.4.5/arch/m68k/ifpsp060/CHANGES b/ANDROID_3.4.5/arch/m68k/ifpsp060/CHANGES deleted file mode 100644 index ba965969..00000000 --- a/ANDROID_3.4.5/arch/m68k/ifpsp060/CHANGES +++ /dev/null @@ -1,120 +0,0 @@ -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -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: - ------ - Upon receiving a non-zero (failing) return value from - a {i,d}mem_{read,write}_{byte,word,long}() "call-out", - the package creates a 16-byte access error stack frame - from the current exception stack frame and exits - through the "call-out" _real_access(). This is the process - as described in the MC68060 User's Manual. - - For instruction read access errors, the info stacked is: - SR = SR at time of exception - PC = PC of instruction being emulated - VOFF = $4008 (stack frame format type) - ADDRESS = PC of instruction being emulated - FSLW = FAULT STATUS LONGWORD - - The valid FSLW bits are: - bit 27 = 1 (misaligned bit) - bit 24 = 1 (read) - bit 23 = 0 (write) - bit 22:21 = 10 (SIZE = word) - bit 20:19 = 00 (TT) - bit 18:16 = x10 (TM; x = 1 for supervisor mode) - bit 15 = 1 (IO) - bit 0 = 1 (Software Emulation Error) - - all other bits are EQUAL TO ZERO and can be set by the _real_access() - "call-out" stub by the user as appropriate. The MC68060 User's Manual - stated that ONLY "bit 0" would be set. The 060SP attempts to set a few - other bits. - - For data read/write access errors, the info stacked is: - SR = SR at time of exception - PC = PC of instruction being emulated - VOFF = $4008 (stack frame format type) - ADDRESS = Address of source or destination operand - FSLW = FAULT STATUS LONGWORD - - The valid FSLW bits are: - bit 27 = 0 (misaligned bit) - bit 24 = x (read; 1 if read, 0 if write) - bit 23 = x (write; 1 if write, 0 if read) - bit 22:21 = xx (SIZE; see MC68060 User's Manual) - bit 20:19 = 00 (TT) - bit 18:16 = x01 (TM; x = 1 for supervisor mode) - bit 15 = 0 (IO) - bit 0 = 1 (Software Emulation Error) - - all other bits are EQUAL TO ZERO and can be set by the _real_access() - "call-out" stub by the user as appropriate. The MC68060 User's Manual - stated that ONLY "bit 0" would be set. The 060SP attempts to set a few - other bits. |