| 1 |
85 |
jeremybenn |
Or1ksim: The OpenRISC 1000 Architectural Simulator
|
| 2 |
|
|
==================================================
|
| 3 |
|
|
|
| 4 |
|
|
|
| 5 |
420 |
jeremybenn |
New in top of tree
|
| 6 |
|
|
==================
|
| 7 |
|
|
|
| 8 |
|
|
New features (shouldn't be there during a release cycle, but prompted by debug
|
| 9 |
|
|
needs elsewhere in the tool chain).
|
| 10 |
|
|
|
| 11 |
|
|
New option --trace provides a one line dump of instruction executed and any
|
| 12 |
|
|
register or memory location changed after each instruction.
|
| 13 |
|
|
|
| 14 |
432 |
jeremybenn |
A new configuration option "use_nmi" is added to the programmable interrupt
|
| 15 |
|
|
controller (PIC). This causes interrupt lines 0 and 1 to be non-maskable, but
|
| 16 |
|
|
only in the sense that the corresponding bits in PICMR are hard-wired to 1.
|
| 17 |
|
|
|
| 18 |
420 |
jeremybenn |
New config setting for memory initialization "exitnops" fills memory with
|
| 19 |
|
|
"l.nop 1", which will cause the simulator to exit. Good for tracking pointer
|
| 20 |
|
|
corruption.
|
| 21 |
|
|
|
| 22 |
|
|
|
| 23 |
385 |
jeremybenn |
New in release 0.5.0rc2
|
| 24 |
|
|
=======================
|
| 25 |
|
|
|
| 26 |
|
|
No new features. This is purely bug fixes post-0.5.0rc1.
|
| 27 |
|
|
|
| 28 |
|
|
The following bugs are fixed.
|
| 29 |
420 |
jeremybenn |
* Bug 1847: Build issues with RSP server (duplicate of 1815).
|
| 30 |
|
|
* Bug 1846: Casting errors.
|
| 31 |
385 |
jeremybenn |
* Bug 1824: Memory controller issue (marked as duplicate of Bug 1758).
|
| 32 |
420 |
jeremybenn |
* Bug 1816: Error message when target not set is obscure (duplicate of 1813).
|
| 33 |
|
|
* Bug 1815: Build errors with RSP server.
|
| 34 |
385 |
jeremybenn |
* Bug 1813: "make check" fails before installation.
|
| 35 |
|
|
|
| 36 |
|
|
The following bugs are outstanding
|
| 37 |
|
|
* Bug 1823: Configuration file error line numbers are wrong.
|
| 38 |
|
|
* Bug 1822: ATA configuration is broken. Documented in user guide.
|
| 39 |
|
|
* Bug 1758: Memory controller issues. Workaround in the user guide.
|
| 40 |
|
|
|
| 41 |
|
|
|
| 42 |
346 |
jeremybenn |
New in release 0.5.0rc1
|
| 43 |
|
|
=======================
|
| 44 |
143 |
jeremybenn |
|
| 45 |
346 |
jeremybenn |
The floating point implementation is now based on John Hauser's "softfloat"
|
| 46 |
|
|
package, ensuring rigorous compliance with the IEEE 754-2008 standard.
|
| 47 |
|
|
|
| 48 |
143 |
jeremybenn |
The library interface is extended to allow registers and memory to be written
|
| 49 |
346 |
jeremybenn |
directly and processor stalled and unstalled. This is to allow direct
|
| 50 |
|
|
integration as a simulator in GDB.
|
| 51 |
143 |
jeremybenn |
|
| 52 |
346 |
jeremybenn |
Some of the existing library interface functions have different prototypes.
|
| 53 |
|
|
|
| 54 |
224 |
jeremybenn |
The "include" feature of configuration files (which never worked, but no one
|
| 55 |
|
|
ever noticed) is dropped.
|
| 56 |
|
|
|
| 57 |
|
|
If the configuration file is not found in the local directory, it is searched
|
| 58 |
|
|
for in the ${HOME}/.or1ksim directory, then (for backwards compatibility) the
|
| 59 |
|
|
${HOME}/.or1k directory.
|
| 60 |
|
|
|
| 61 |
346 |
jeremybenn |
If no simulation file is specified, then sim.cfg is not searched for as a
|
| 62 |
|
|
default.
|
| 63 |
224 |
jeremybenn |
|
| 64 |
346 |
jeremybenn |
New options are added -q|--quiet, -V|--verbose, -m|--memory and
|
| 65 |
|
|
--report-memory-errors. The semantics of --nosrv and --src otpions are changed.
|
| 66 |
224 |
jeremybenn |
|
| 67 |
346 |
jeremybenn |
There is a configuration option to collect statistics on instruction execution
|
| 68 |
|
|
in binary form.
|
| 69 |
|
|
|
| 70 |
|
|
In previous versions, Bus exceptions were unique in that they produced an
|
| 71 |
|
|
error message on standard output. The default is now for this exception to be
|
| 72 |
|
|
handled silently, unless requested by --report-memory-errors.
|
| 73 |
|
|
|
| 74 |
|
|
The following feature requests have been accepted.
|
| 75 |
|
|
* Feature 393: Integrate Or1ksim in GDB.
|
| 76 |
|
|
|
| 77 |
143 |
jeremybenn |
The following bugs are fixed.
|
| 78 |
346 |
jeremybenn |
* Bug 1821: Reference configuration file has defective debug section.
|
| 79 |
|
|
* Bug 1817: Reference configuration file missing from distribution.
|
| 80 |
|
|
* Bug 1795: GDB breakpoints do not work with the instruction cache.
|
| 81 |
143 |
jeremybenn |
|
| 82 |
346 |
jeremybenn |
The following bugs are either cannot be reproduced or will not be fixed.
|
| 83 |
|
|
|
| 84 |
|
|
The following bugs are outstanding
|
| 85 |
|
|
* Bug 1824: Memory controller issue (probably the same as Bug 1758).
|
| 86 |
|
|
* Bug 1823: Configuration file error line numbers are wrong.
|
| 87 |
|
|
* Bug 1822: ATA section in configuration file is broken.
|
| 88 |
|
|
* Bug 1816: Error message when target not set is obscure.
|
| 89 |
|
|
* Bug 1813: "make check" fails before installation.
|
| 90 |
|
|
* Bug 1758: Memory controller issues. Workaround in the user guide.
|
| 91 |
|
|
|
| 92 |
|
|
|
| 93 |
134 |
jeremybenn |
New in release 0.4.0
|
| 94 |
|
|
====================
|
| 95 |
|
|
|
| 96 |
|
|
No new features or bugs. This is the full release based on 0.4.0rc2.
|
| 97 |
|
|
|
| 98 |
|
|
|
| 99 |
127 |
jeremybenn |
New in release 0.4.0rc2
|
| 100 |
|
|
=======================
|
| 101 |
107 |
jeremybenn |
|
| 102 |
|
|
No new features are provided, pending full release of 0.4.0.
|
| 103 |
|
|
|
| 104 |
124 |
jeremybenn |
The configuration options --enable-arith-flag and --enable-ov-flag have been
|
| 105 |
|
|
removed, since they were the source of bugs, notably Bugs 1782, 1783 and 1784.
|
| 106 |
|
|
|
| 107 |
127 |
jeremybenn |
The configuration option --enable-unsigned-xori has been added to allow a
|
| 108 |
|
|
conditional solution to Bug 1790.
|
| 109 |
|
|
|
| 110 |
107 |
jeremybenn |
The following bugs are fixed.
|
| 111 |
|
|
* Bug 1770: l.div does not set carry or give correct exception.
|
| 112 |
114 |
jeremybenn |
* Bug 1771: l.add* do not correctly set the overflow flag.
|
| 113 |
115 |
jeremybenn |
* Bug 1772: l.fl1 not implemented.
|
| 114 |
116 |
jeremybenn |
* Bug 1773: l.maci not correctly implemented.
|
| 115 |
118 |
jeremybenn |
* Bug 1774: l.mulu not implemented.
|
| 116 |
121 |
jeremybenn |
* Bug 1775: l.jalr and l.jr don't trigger alignment exceptions.
|
| 117 |
114 |
jeremybenn |
* Bug 1776: l.addic is not implemented.
|
| 118 |
122 |
jeremybenn |
* Bug 1777: l.macrc not correctly implemented.
|
| 119 |
|
|
* Bug 1778: l.ror and l.rori are not implemented.
|
| 120 |
123 |
jeremybenn |
* Bug 1779: l.mtspr implementation is incorrect.
|
| 121 |
124 |
jeremybenn |
* Bug 1782: Or1ksim setting of overflow flag is wrong.
|
| 122 |
|
|
* Bug 1783: Or1ksim definition of overflow is wrong.
|
| 123 |
|
|
* Bug 1784: Or1ksim does not trigger overflow exceptions.
|
| 124 |
127 |
jeremybenn |
* Bug 1790: l.xori implementation is incorrect.
|
| 125 |
107 |
jeremybenn |
|
| 126 |
|
|
The following bugs are either cannot be reproduced or will not be fixed.
|
| 127 |
|
|
|
| 128 |
|
|
The following bugs are outstanding
|
| 129 |
114 |
jeremybenn |
* Bug 1758: Memory controller issues. Workaround in the user guide.
|
| 130 |
107 |
jeremybenn |
|
| 131 |
|
|
|
| 132 |
104 |
jeremybenn |
New in release 0.4.0rc1
|
| 133 |
|
|
=======================
|
| 134 |
85 |
jeremybenn |
|
| 135 |
86 |
jeremybenn |
The following new features are provided.
|
| 136 |
85 |
jeremybenn |
* testbench now renamed testsuite and fully integrated using DejaGNU.
|
| 137 |
|
|
"make check" now works correctly if the OpenRISC toolchain is installed.
|
| 138 |
86 |
jeremybenn |
* New configuration flag --enable-all-tests to enable building of incomplete
|
| 139 |
|
|
tests with "make check".
|
| 140 |
104 |
jeremybenn |
* The library offers an interface via modelled JTAG
|
| 141 |
|
|
* Single precision floating point is available.
|
| 142 |
85 |
jeremybenn |
|
| 143 |
86 |
jeremybenn |
The user guide is updated.
|
| 144 |
|
|
|
| 145 |
|
|
The following feature requests have been accepted.
|
| 146 |
104 |
jeremybenn |
* Feature 413: ORFPX32 single precision floating point now supported.
|
| 147 |
85 |
jeremybenn |
* Feature 469: Icache tags now intialized as invalid.
|
| 148 |
|
|
* Feature 1673: Or1ksim now builds on Mac OS X.
|
| 149 |
|
|
* Feature 1678: download, patch and build dirs removed from SVN.
|
| 150 |
|
|
|
| 151 |
86 |
jeremybenn |
The following feature requests have been rejected.
|
| 152 |
85 |
jeremybenn |
* Feature 399: Writeable SR_LEE bit will not be provided.
|
| 153 |
|
|
* Feature 409: Separate ELF loader library already exists in binutils.
|
| 154 |
|
|
* Feature 586: Ignoring HW breakpoints is already possible.
|
| 155 |
|
|
|
| 156 |
89 |
jeremybenn |
The following bugs are fixed.
|
| 157 |
|
|
* Bug 534: Test suite fixed (see above).
|
| 158 |
|
|
* Bug 1710: mprofile now handles mode args correctly.
|
| 159 |
|
|
* Bug 1723: PS2 keyboard error message clearer if RX file won't open.
|
| 160 |
104 |
jeremybenn |
* Bug 1733: Or1ksim now accepts ELF image when working through RSP.
|
| 161 |
|
|
* Bug 1767: l.lws is not recognized as an opcode.
|
| 162 |
85 |
jeremybenn |
|
| 163 |
89 |
jeremybenn |
The following bugs are either cannot be reproduced or will not be fixed.
|
| 164 |
|
|
|
| 165 |
104 |
jeremybenn |
The following bugs are outstanding
|
| 166 |
|
|
* Bug 1758: Memory controller issues. Workaround in the user guide.
|
| 167 |
89 |
jeremybenn |
|
| 168 |
104 |
jeremybenn |
|
| 169 |
19 |
jeremybenn |
New in release 0.3.0
|
| 170 |
85 |
jeremybenn |
====================
|
| 171 |
|
|
|
| 172 |
19 |
jeremybenn |
* No new features or bugs. This is the full release based on rc3.
|
| 173 |
|
|
|
| 174 |
|
|
New in release 0.3.0rc3
|
| 175 |
85 |
jeremybenn |
=======================
|
| 176 |
|
|
|
| 177 |
19 |
jeremybenn |
* Bug 376 fixed: 32 interrupts now supported
|
| 178 |
|
|
* Bug 377 fixed: Level triggered interrupts now work correctly
|
| 179 |
|
|
* Bug 378 fixed: xterm UART now works with RSP
|
| 180 |
|
|
* Bug 379 fixed: RSP performance improved
|
| 181 |
|
|
* Bug 380 fixed: GDB 6.8 stepi now works through Or1ksim JTAG interface
|
| 182 |
|
|
* Bug 398 fixed: Lack of support for LEE bit in SR documented
|
| 183 |
|
|
* Bug 415 fixed: NPC behavior on writing optionally matches real HW
|
| 184 |
|
|
* Bug 418 fixed: All library up calls are host-endian
|
| 185 |
|
|
|
| 186 |
|
|
* Feature 395 added: Boot from 0xf0000000 now enabled.
|
| 187 |
|
|
* Feature 408 added: Image file may be NULL for or1ksim_init.
|
| 188 |
|
|
* Feature 410 added: RSP now clears sigval on unstalling the processor.
|
| 189 |
|
|
* Feature 417 added: Or1ksim prints out its version on startup.
|
| 190 |
|
|
|
| 191 |
|
|
New in release 0.3.0rc2
|
| 192 |
85 |
jeremybenn |
=======================
|
| 193 |
|
|
|
| 194 |
19 |
jeremybenn |
* A number of bug fixes
|
| 195 |
|
|
* Updates to user guide
|
| 196 |
|
|
|
| 197 |
|
|
New in release 0.3.0rc1
|
| 198 |
85 |
jeremybenn |
=======================
|
| 199 |
|
|
|
| 200 |
19 |
jeremybenn |
* Numerous bug fixes (see the OpenRISC tracker and the ChangeLog file)
|
| 201 |
|
|
* User Guide
|
| 202 |
|
|
* Consistent coding style and file naming throughout
|
| 203 |
|
|
* Support for external SystemC models
|
| 204 |
|
|
|
| 205 |
85 |
jeremybenn |
New in release 1.9 (old style numbering)
|
| 206 |
|
|
========================================
|
| 207 |
19 |
jeremybenn |
|
| 208 |
|
|
* support for binary COFF
|
| 209 |
|
|
* generation of verilog memory models (used when you want to run simulation
|
| 210 |
|
|
of OpenRISC processor cores)
|
| 211 |
|
|
|
| 212 |
85 |
jeremybenn |
New in release 1.2 (old style numbering)
|
| 213 |
|
|
========================================
|
| 214 |
19 |
jeremybenn |
|
| 215 |
|
|
* support for OR16 ISA
|
| 216 |
|
|
|
| 217 |
85 |
jeremybenn |
New in release 1.1 (old style numbering)
|
| 218 |
|
|
========================================
|
| 219 |
19 |
jeremybenn |
|
| 220 |
|
|
* First release
|
