author | Faisal Memon <faisal.memon@nokia.com> |
Thu, 25 Mar 2010 22:13:48 +0000 | |
changeset 67 | 535d0a02b797 |
parent 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
1
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff
changeset
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1 |
/* |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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2 |
NetWinder Floating Point Emulator |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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3 |
(c) Rebel.com, 1998-1999 |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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4 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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5 |
Direct questions, comments to Scott Bambrough <scottb@netwinder.org> |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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6 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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7 |
This program is free software; you can redistribute it and/or modify |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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8 |
it under the terms of the GNU General Public License as published by |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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9 |
the Free Software Foundation; either version 2 of the License, or |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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10 |
(at your option) any later version. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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11 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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12 |
This program is distributed in the hope that it will be useful, |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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13 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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14 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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15 |
GNU General Public License for more details. |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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16 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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17 |
You should have received a copy of the GNU General Public License |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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18 |
along with this program; if not, write to the Free Software |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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19 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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*/ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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|
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parents:
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#ifndef __FPSR_H__ |
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#define __FPSR_H__ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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24 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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25 |
/* |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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26 |
The FPSR is a 32 bit register consisting of 4 parts, each exactly |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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one byte. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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28 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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SYSTEM ID |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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EXCEPTION TRAP ENABLE BYTE |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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SYSTEM CONTROL BYTE |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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CUMULATIVE EXCEPTION FLAGS BYTE |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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33 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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The FPCR is a 32 bit register consisting of bit flags. |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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*/ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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36 |
|
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/* SYSTEM ID |
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------------ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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Note: the system id byte is read only */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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typedef unsigned int FPSR; /* type for floating point status register */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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typedef unsigned int FPCR; /* type for floating point control register */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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#define MASK_SYSID 0xff000000 |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_HARDWARE 0x80000000 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define FP_EMULATOR 0x01000000 /* System ID for emulator */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define FP_ACCELERATOR 0x81000000 /* System ID for FPA11 */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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48 |
|
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/* EXCEPTION TRAP ENABLE BYTE |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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----------------------------- */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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51 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define MASK_TRAP_ENABLE 0x00ff0000 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define MASK_TRAP_ENABLE_STRICT 0x001f0000 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_IXE 0x00100000 /* inexact exception enable */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_UFE 0x00080000 /* underflow exception enable */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_OFE 0x00040000 /* overflow exception enable */ |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_DZE 0x00020000 /* divide by zero exception enable */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_IOE 0x00010000 /* invalid operation exception enable */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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59 |
|
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60 |
/* SYSTEM CONTROL BYTE |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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---------------------- */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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62 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define MASK_SYSTEM_CONTROL 0x0000ff00 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define MASK_TRAP_STRICT 0x00001f00 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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65 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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66 |
#define BIT_AC 0x00001000 /* use alternative C-flag definition |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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67 |
for compares */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_EP 0x00000800 /* use expanded packed decimal format */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_SO 0x00000400 /* select synchronous operation of FPA */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_NE 0x00000200 /* NaN exception bit */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_ND 0x00000100 /* no denormalized numbers bit */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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72 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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/* CUMULATIVE EXCEPTION FLAGS BYTE |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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---------------------------------- */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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75 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define MASK_EXCEPTION_FLAGS 0x000000ff |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define MASK_EXCEPTION_FLAGS_STRICT 0x0000001f |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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78 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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79 |
#define BIT_IXC 0x00000010 /* inexact exception flag */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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#define BIT_UFC 0x00000008 /* underflow exception flag */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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81 |
#define BIT_OFC 0x00000004 /* overfloat exception flag */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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82 |
#define BIT_DZC 0x00000002 /* divide by zero exception flag */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#define BIT_IOC 0x00000001 /* invalid operation exception flag */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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84 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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85 |
/* Floating Point Control Register |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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86 |
----------------------------------*/ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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87 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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88 |
#define BIT_RU 0x80000000 /* rounded up bit */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff
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89 |
#define BIT_IE 0x10000000 /* inexact bit */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff
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90 |
#define BIT_MO 0x08000000 /* mantissa overflow bit */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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91 |
#define BIT_EO 0x04000000 /* exponent overflow bit */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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92 |
#define BIT_SB 0x00000800 /* store bounce */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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93 |
#define BIT_AB 0x00000400 /* arithmetic bounce */ |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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94 |
#define BIT_RE 0x00000200 /* rounding exception */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff
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95 |
#define BIT_DA 0x00000100 /* disable FPA */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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96 |
|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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97 |
#define MASK_OP 0x00f08010 /* AU operation code */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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98 |
#define MASK_PR 0x00080080 /* AU precision */ |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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99 |
#define MASK_S1 0x00070000 /* AU source register 1 */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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100 |
#define MASK_S2 0x00000007 /* AU source register 2 */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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101 |
#define MASK_DS 0x00007000 /* AU destination register */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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102 |
#define MASK_RM 0x00000060 /* AU rounding mode */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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103 |
#define MASK_ALU 0x9cfff2ff /* only ALU can write these bits */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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104 |
#define MASK_RESET 0x00000d00 /* bits set on reset, all others cleared */ |
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Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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105 |
#define MASK_WFC MASK_RESET |
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Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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106 |
#define MASK_RFC ~MASK_RESET |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
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107 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
108 |
#endif |