JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fix typos in ChangeLogs; add coff/external.h; fix copyright dates

Browse Source
This commit is contained in:
Nick Clifton
2001-03-14 02:27:44 +00:00
parent 1d39c83a32
commit c77e3e5481
144 changed files with 2302 additions and 4442 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
include/opcode/i960.h
View File

@ -1,22 +1,38 @@
/* Basic 80960 instruction formats.
*
* The 'COJ' instructions are actually COBR instructions with the 'b' in
* the mnemonic replaced by a 'j'; they are ALWAYS "de-optimized" if necessary:
* if the displacement will not fit in 13 bits, the assembler will replace them
* with the corresponding compare and branch instructions.
*
* All of the 'MEMn' instructions are the same format; the 'n' in the name
* indicates the default index scale factor (the size of the datum operated on).
*
* The FBRA formats are not actually an instruction format. They are the
* "convenience directives" for branching on floating-point comparisons,
* each of which generates 2 instructions (a 'bno' and one other branch).
*
* The CALLJ format is not actually an instruction format. It indicates that
* the instruction generated (a CTRL-format 'call') should have its relocation
* specially flagged for link-time replacement with a 'bal' or 'calls' if
* appropriate.
*/
Copyright 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
The 'COJ' instructions are actually COBR instructions with the 'b' in
the mnemonic replaced by a 'j'; they are ALWAYS "de-optimized" if necessary:
if the displacement will not fit in 13 bits, the assembler will replace them
with the corresponding compare and branch instructions.
All of the 'MEMn' instructions are the same format; the 'n' in the name
indicates the default index scale factor (the size of the datum operated on).
The FBRA formats are not actually an instruction format. They are the
"convenience directives" for branching on floating-point comparisons,
each of which generates 2 instructions (a 'bno' and one other branch).
The CALLJ format is not actually an instruction format. It indicates that
the instruction generated (a CTRL-format 'call') should have its relocation
specially flagged for link-time replacement with a 'bal' or 'calls' if
appropriate. */
#define CTRL 0
#define COBR 1