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1783 Commits

Author SHA1 Message Date
Yunsup Lee
6916e5cbfb coreplex: better names for RocketTiles in Verilog (#890) 2017-07-25 16:35:31 -07:00
Andrew Waterman
d43f02268b Merge pull request #889 from freechipsproject/acq-before-rel-and-jump-in-frontend 
Acquire before release; jump in frontend
 2017-07-25 16:26:47 -07:00
Wesley W. Terpstra
c2b8b08461 tilelink: fix Fragmenter source re-use bug (#888) 
Consider the following waveform for two 4-beat bursts:
---A----A------------
-------D-----DDD-DDDD
Under TL rules, the second A can use the same source as the first A,
because the source is released for reuse on the first response beat.

However, if we fragment the requests, it looks like this:
---3210-3210---------
-------3-----210-3210
... now we've broken the rules because 210 are twice inflight.

To solve this, we alternate an a.source bit every time D completes a txn.
 2017-07-25 16:23:55 -07:00
Andrew Waterman
15878d4691 Perform some control-flow transfers within the Frontend 2017-07-25 15:19:16 -07:00
Andrew Waterman
62c4080585 Add RVC instruction patterns 2017-07-25 15:19:16 -07:00
Andrew Waterman
66d06460fa Add option for acquire-before-release 2017-07-25 15:19:16 -07:00
Andrew Waterman
86ccd935fc Add method to print perf events 2017-07-25 15:19:16 -07:00
Andrew Waterman
5df8f0d1ea Add L2 TLB miss counter 2017-07-25 15:19:16 -07:00
Andrew Waterman
3ced04b70a Mix in trait to connect global_reset_vector 2017-07-25 15:19:16 -07:00
Yunsup Lee
c9e467a668 coreplex: retire RTCPeriod & introduce PeripheryBusParams.frequency (#887) 2017-07-25 00:55:55 -07:00
Wesley W. Terpstra
68ed055f6d chiplink: adjust bus view to include the splitter (#886) 2017-07-24 21:41:17 -07:00
Yunsup Lee
dc435af30a fix HasRTCModuleImp (#885) 2017-07-24 20:24:59 -07:00
Henry Cook
01ca3efc2b Combine Coreplex and System Module Hierarchies (#875) 
* coreplex collapse: peripherals now in coreplex

* coreplex: better factoring of TLBusWrapper attachement points

* diplomacy: allow monitorless :*= and :=*

* rocket: don't connect monitors to tile tim slave ports

* rename chip package to system

* coreplex: only sbus has a splitter

* TLFragmenter: Continuing my spot battles on requires without explanatory strings

* pbus: toFixedWidthSingleBeatSlave

* tilelink: more verbose requires

* use the new system package for regression

* sbus: add more explicit FIFO attachment points

* delete leftover top-level utils

* cleanup ResetVector and RTC
 2017-07-23 08:31:04 -07:00
Megan Wachs
f2002839eb TLFragmenter: Continuing my spot battles on requires without explanatory strings (#882) 2017-07-21 21:55:32 -07:00
Yunsup Lee
21954c1c73 tileink: FIFOFixer should cope with zero-latency devices 2017-07-19 19:38:27 -07:00
Howard Mao
4d784ad693 add cloneType to RegisterWriteIO and RegisterReadIO (#874) 2017-07-18 18:52:31 -07:00
Wesley W. Terpstra
a9c58e9d9f diplomacy: support creating ShiftQueues as well 2017-07-18 14:57:02 -07:00
Wesley W. Terpstra
c0a3bb58e9 ShiftQueue: use Vec of Bool to support constant prop of enq.valid 2017-07-18 14:56:59 -07:00
Wesley W. Terpstra
416629b3bf tilelink: FIFOFixer should fix no domain => domain cases (#873) 2017-07-17 22:32:17 -07:00
Wesley W. Terpstra
d09a985729 zero: fix attachment in multichannel case (#870) 2017-07-17 21:48:31 -07:00
Wesley W. Terpstra
fc75ada577 tilelink: Monitor should report line numbers of connection that failed (#872) 2017-07-17 21:29:14 -07:00
Howard Mao
ec57994784 fix the TLFuzzer IO (#869) 2017-07-17 14:59:35 -07:00
Wesley W. Terpstra
16e8709144 tilelink: it is now legal to have errors on {Release,Hint}Ack (#864) 2017-07-14 16:13:30 -07:00
Richard Xia
9ade7af013 Merge pull request #862 from freechipsproject/plic-max-pri-dts 
PLIC: Add maxPri as well as ndev in DTS
 2017-07-13 17:08:21 -07:00
Richard Xia
f0481801df Merge pull request #863 from freechipsproject/rename-offchip-interrupts-to-external-interrupts 
Rename offchip-interrupts to external-interrupts.
 2017-07-13 16:52:57 -07:00
Megan Wachs
35464782b5 PLIC: maxPriorities comes from params 2017-07-13 15:57:10 -07:00
Richard Xia
d62787357b Rename offchip-interrupts to external-interrupts. 2017-07-13 15:56:22 -07:00
Shreesha Srinath
f2533ce825 bootrom: Adding bootrom parameters (#857) 
BootROM parameters currently control the boot rom address, size, and the
hang which essentially sets the reset vector. This commit allows specifying
different parameter values as required.
 2017-07-13 13:40:02 -07:00
Megan Wachs
f646bed3ea PLIC: Use longer DTS name for Max Priorities. 
I used the singular because there is really only one max priority
 2017-07-13 13:37:22 -07:00
Megan Wachs
0800fd3ed9 PLIC: Add maxPri as well as ndev in DTS 2017-07-13 13:18:50 -07:00
Wesley W. Terpstra
b7f1ba3428 tilelink: FIFOFixer must support null cases (#860) 
In particular, it is ok if no slaves actually need FIFO fixing.
It is also ok if none of those fixed are FIFO.
 2017-07-12 22:20:31 -07:00
Wesley W. Terpstra
4eface8a9e rocket: do not require FIFO order for memory-like regions 2017-07-12 17:39:00 -07:00
Wesley W. Terpstra
09b9d33a9a tilelink: FIFOFixer now has a policy parameter 2017-07-12 17:38:55 -07:00
Wesley W. Terpstra
b363a94480 diplomacy: add a new UNCACHEABLE RegionType 2017-07-12 16:31:50 -07:00
Wesley W. Terpstra
c8a7648169 diplomacy: only evaluate a Nexus node's map function once 2017-07-12 16:20:55 -07:00
Wesley W. Terpstra
af3976aa67 regmapper: add byte-sized RegField helper function (#854) 2017-07-10 21:08:02 -07:00
Megan Wachs
177ccbb663 regfield: More explanatory requires so I don't have to RTFC and figure out what width actually was (#855) 2017-07-10 21:07:50 -07:00
Jim Lawson
287219da06 Merge pull request #851 from freechipsproject/chisel3clock 
Use chisel3 Clock() method.
 2017-07-10 08:33:46 -07:00
Wesley W. Terpstra
5db0e770d5 tilelink: TestSRAM can emulate incompletely populated memory 2017-07-07 21:40:40 -07:00
Wesley W. Terpstra
702143eb33 tilelink: SRAM can emulate incompletely populated memory 2017-07-07 21:40:40 -07:00
Wesley W. Terpstra
9310a33e77 apb: SRAM can emulate incompletely populated memory 2017-07-07 21:40:40 -07:00
Wesley W. Terpstra
28fbf1af8e ahb: SRAM can emulate incompletely populated memory 2017-07-07 21:40:39 -07:00
Wesley W. Terpstra
df44b23956 axi4: SRAM can emulate incompletely populated memory 2017-07-07 21:40:39 -07:00
Wesley W. Terpstra
b2cc4b99ed tilelink: TestSRAM reports errors on illegal access 2017-07-07 21:40:36 -07:00
Wesley W. Terpstra
e8cb6dafd3 tilelink: SRAM reports errors on illegal access 2017-07-07 21:15:36 -07:00
Wesley W. Terpstra
f1fb3be603 ahb: SRAM reports errors on illegal access 2017-07-07 21:15:36 -07:00
Wesley W. Terpstra
19851a7c9e apb: SRAM reports errors on illegal access 2017-07-07 21:15:33 -07:00
Wesley W. Terpstra
025f7d890b axi4: SRAM now reports errors on illegal address (#852) 2017-07-07 19:27:32 -07:00
Jim Lawson
2bf91a0558 Use chisel3 Clock() method. 2017-07-07 14:16:39 -07:00
Henry Cook
4c595d175c Refactor package hierarchy and remove legacy bus protocol implementations (#845) 
* Refactors package hierarchy.

Additionally:
  - Removes legacy ground tests and configs
  - Removes legacy bus protocol implementations
  - Removes NTiles
  - Adds devices package
  - Adds more functions to util package
 2017-07-07 10:48:16 -07:00
Megan Wachs
76a1ae667f PLIC: (undefZero=true) Don't allow addresses to alias 
While the spec is unclear what happens when you access unused registers in the PLIC, for user simplicity turn off register aliasing. If this becomes a performance/area issue we can revisit.
 2017-07-06 17:57:08 -07:00
Andrew Waterman
a0cbc376b4 Merge pull request #849 from freechipsproject/l2-tlb 
L1 memory system improvements
 2017-07-06 13:03:06 -07:00
Andrew Waterman
e1cc0a0a0e Mask debug interrupts similarly to other interrupts (#847) 
This makes single-step exceptions higher-priority than debug interrupts.
 2017-07-06 12:03:24 -07:00
Andrew Waterman
b2351c5fbf Use consistent casing 2017-07-06 11:16:56 -07:00
Andrew Waterman
be4eceec0d Fix stupid D$ probe bug 2017-07-06 01:20:47 -07:00
Andrew Waterman
90a7d6a343 Add L2 TLB option 2017-07-06 01:19:18 -07:00
Andrew Waterman
438abc76d2 Handle TL errors in L1 I$ 
Cache the error bit in the tag array; report precisely on access.
 2017-07-06 01:02:11 -07:00
Andrew Waterman
0ef45fac9b Add tag ECC to D$ 2017-07-03 18:16:37 -07:00
Andrew Waterman
e9752f76ae Improve probe state machine 
- Reduce reliance on s2_prb_ack_data due to future ECC changes
- Shave a cycle off valid, but clean, probes
- Code cleanup
 2017-07-03 16:25:04 -07:00
Richard Xia
5b46350bc3 Make sure that DCache s2_xcpt data scratchpad case is assigned to after initial assignment. 2017-06-30 17:44:16 -07:00
Megan Wachs
69ab3626ca Merge pull request #837 from freechipsproject/plic_recode 
plic: Recode to use OH knowledge
 2017-06-30 16:05:32 -07:00
Megan Wachs
8c92c50d85 plic: make assertion comment right 2017-06-30 14:25:09 -07:00
Megan Wachs
f31ae008f3 plic: Clean up comments and simplify checking 2017-06-30 14:15:26 -07:00
Megan Wachs
76f8de75e3 plic: comment tidying 2017-06-30 12:51:09 -07:00
Megan Wachs
3da26b0aa8 plic: Add some assertions to check one-hot assumptions 2017-06-30 12:32:58 -07:00
Wesley W. Terpstra
367d4aebe6 Set complete unconditionally 2017-06-30 10:15:53 -07:00
Wesley W. Terpstra
4e9f65b2ef Simplify logic further and bugfix 
complete was being set unconditionally
 2017-06-30 10:07:39 -07:00
Megan Wachs
e8e709c941 plic: Use same recoding technique on complete as well as claim 2017-06-30 08:36:00 -07:00
Wesley W. Terpstra
3dca2bc4a3 gah 2017-06-30 01:07:29 -07:00
Wesley W. Terpstra
e43b7accf9 Fix compile error and eliminate wasteful wires 2017-06-30 01:06:02 -07:00
Megan Wachs
834bcf6b7e PLIC: simplify some scala code 2017-06-29 19:35:15 -07:00
Megan Wachs
eae4fe1469 plic: Recode to use the knowledge that only one interrupt can be claimed at a time. 2017-06-29 19:09:57 -07:00
Wesley W. Terpstra
e3c7bb3b1f SRAM: MemoryDevices use .reg (not .reg("mem")) (#835) 2017-06-29 19:07:12 -07:00
Megan Wachs
0668f13d99 debug: Fix race between resumereq and resumeack 
For an arbitrary DMI master on a fast clock running against a core
on a slow clock, there was a race between writing resumereq and
reading resumeack. When using JTAG DTM this does not occur in practice,
but clean it up for running simulations with FESVR and future DMI masters.
 2017-06-29 12:27:23 -07:00
Wesley W. Terpstra
5edc4546e3 rocket: add dtim and itim refs to cpus 2017-06-28 23:10:58 -07:00
Wesley W. Terpstra
7d6f8d48f2 Revert "rocket: link dtim to its cpu" 
This reverts commit e6c2d446cc.
 2017-06-28 23:10:57 -07:00
Wesley W. Terpstra
fbcd6f0eb2 Revert "rocket: link itim to its cpu" 
This reverts commit 48390ed604.
 2017-06-28 23:10:57 -07:00
Henry Cook
6e5a4c687f diplomacy: a type of connect that always disables monitors (#828) 2017-06-28 21:48:10 -07:00
Megan Wachs
992b480c74 Merge pull request #825 from freechipsproject/debug_wfi 
Debug + WFI Interactions
 2017-06-28 21:28:51 -07:00
Wesley W. Terpstra
66489ffa13 rom+sram: add a compatible field 2017-06-28 15:41:20 -07:00
Wesley W. Terpstra
ca3030cba3 dcache: fix a gender inversion bug introduced in #826 2017-06-28 15:38:53 -07:00
Wesley W. Terpstra
02aa80a958 TLZero: include a version number 2017-06-28 15:12:46 -07:00
Wesley W. Terpstra
48390ed604 rocket: link itim to its cpu 2017-06-28 15:06:19 -07:00
Wesley W. Terpstra
e6c2d446cc rocket: link dtim to its cpu 2017-06-28 15:06:19 -07:00
Wesley W. Terpstra
3f6d5110cd rocket: dtim is not a dcache 2017-06-28 15:06:19 -07:00
Wesley W. Terpstra
bca3db0866 diplomacy: add RWXC permissions also to ResourceMappings 2017-06-28 15:06:19 -07:00
Wesley W. Terpstra
5436be54ff periphery: use SimpleBus for mmio ports 2017-06-28 15:06:19 -07:00
Wesley W. Terpstra
171e1a4c05 diplomacy: add SimpleBus to describe bridges 2017-06-28 15:06:19 -07:00
Wesley W. Terpstra
84dc23c215 devices: add reg-names to most devices 2017-06-28 15:06:16 -07:00
Wesley W. Terpstra
0bf46edb6c diplomacy: support reg-names in DTS output 2017-06-28 14:26:55 -07:00
Wesley W. Terpstra
852f03282f rocket: give itim and dtim a compatible field for drivers to match 2017-06-28 14:26:55 -07:00
Wesley W. Terpstra
6c2b770605 plic: do not output #address-cells 
This is only needed for an interrupt-map, not an interrupt-controller.
 2017-06-28 14:26:55 -07:00
Andrew Waterman
b9a934ae28 Support eccBytes > 1 2017-06-28 02:09:18 -07:00
Andrew Waterman
8e4be40efc Propagate wb_reg_rs2 for sfence ASID 
This would have been a bug if we supported ASIDs.
 2017-06-28 02:09:18 -07:00
Andrew Waterman
2077e4190b Make log more sensible for long-latency operations 
Show only one write to the destination register, not two.
 2017-06-28 02:09:18 -07:00
Andrew Waterman
6f8fdff762 Basic L1 D$ ECC support 
Only supports ECC on data, not tags; only supports byte granularity.
 2017-06-28 02:09:18 -07:00
Andrew Waterman
6100600179 Minor D$ code cleanup 2017-06-28 02:09:18 -07:00
Andrew Waterman
9c78ac4d78 Add grouped method to AugmentedUInt, like Seq.grouped 2017-06-28 02:09:18 -07:00
Andrew Waterman
8989f5654c Add swizzle method to Encoding 2017-06-28 02:09:18 -07:00
Andrew Waterman
3e04a99f61 Refactor frontend exception passing 
Bundle them, and leverage regularity, so that if we have to add more
exceptions in the future, we don't need to change so much code.
 2017-06-28 02:09:18 -07:00
Andrew Waterman
cc2f87c214 Forbid S-mode execution from user memory 
285c81746f
 2017-06-28 02:09:18 -07:00
Andrew Waterman
8aa16a11f3 Reduce D$ access energy when refill width > access width 2017-06-28 02:09:18 -07:00
Andrew Waterman
25f585f2a9 Remove unused signal from TLB interface 2017-06-28 02:09:18 -07:00
Andrew Waterman
d5f80df0ae Allow speculative I$ refill to cacheable regions 
Backpedaling on 27b143013f.  Shaving
four cycles off of I$ miss penalty is obviously worth the HW cost.
 2017-06-28 02:09:18 -07:00
Megan Wachs
3fc75c2714 debug: report UNSUPPORTED more consistently. Allow haltreq/resumereq to be R as well as W. 2017-06-27 17:40:58 -07:00
Megan Wachs
e1fe0f245b debug: Don't reset debugint register, as none of the interrupt registers are. 2017-06-27 14:10:13 -07:00
Megan Wachs
136e4b6c27 debug: use consistent coding style (Reg(init ... ) vs RegInit) 2017-06-27 13:42:38 -07:00
Megan Wachs
3b9550ede3 debug: correctly declare reg_debugint 2017-06-27 13:42:38 -07:00
Megan Wachs
56839b2c62 debug: Remove DebugInterrupt from DCSR (it is no longer part of V13 spec) 2017-06-27 13:42:38 -07:00
Megan Wachs
665c2a349c Correct Debug + WFI Interactions 
1) Debug interrupt should end WFI
2) WFI should end immedately during single-step
3) WFI should act like NOP during Debug Mode
 2017-06-27 13:42:38 -07:00
Zihao Yu
c9cfe46604 rocket,Rocket: fix type mismatch (#819) 2017-06-27 11:22:08 -07:00
Wesley W. Terpstra
66f64a9759 tilelink2 ToAXI4: don't interlock R+W for non-FIFO masters (#822) 
idCount <= 1 implies that no more than one transaction can be inflight,
so there is no need to interlock R+W. However, when stripBits > 0, it is
possible for a non-FIFO master to have > 1 idCount. In this case, we
also don't need to interlock R+W.
 2017-06-26 17:54:17 -07:00
Wesley W. Terpstra
8ca6c10994 tilelink2: ToAXI4 can strip off low source ID bits 
Some TL converters place extra meta data in the low bits of source.
Examples include the TLFragmenter and CacheCork.

This new argument makes it possible to save AXI4 ID space by reclaiming
those bits upon conversion.
 2017-06-23 17:22:45 -07:00
Wesley W. Terpstra
feecfb53ed axi4: Deinterleaver need not make a Q for an unused AXI id 2017-06-23 17:22:42 -07:00
Wesley W. Terpstra
9bea7c1c58 Merge pull request #815 from freechipsproject/reduce-others 
Reduce others
 2017-06-23 12:13:48 -07:00
Wesley W. Terpstra
2d8b2f4edd ReduceOthers: remove constants from the balanced AND tree 2017-06-23 00:28:05 -07:00
Henry Cook
ad4b454b49 isp: passthru based on edgesOut = edgesIn (#814) 2017-06-22 21:23:49 -07:00
Wesley W. Terpstra
48611266fa diplomacy: use ReduceOthers in the RegMapper 2017-06-22 19:43:47 -07:00
Wesley W. Terpstra
11d1cb02eb util ReduceOthers produces nlogn cost ready-valid logic 2017-06-22 19:43:20 -07:00
Jack Koenig
1f137cb9ff Merge pull request #800 from ss2783/patch-1 
GeneratorUtils: support to elaborate a RawModule
 2017-06-22 12:34:41 -07:00
Colin Schmidt
aced18b3bb Move RoCC interface to Diplomacy and TL2 (#807) 
* Move RoCC interface to Diplomacy and TL2

* guard rocc arbiter to prevent zero-width wires
 2017-06-22 12:07:09 -07:00
Henry Cook
bf431c0a53 groundtest: fix test ram width 2017-06-20 18:11:22 -07:00
Wesley W. Terpstra
2f2fe0a973 clint: don't ask for what you know (nTiles) 2017-06-20 17:21:53 -07:00
Henry Cook
1c97a2a94c allow re-positionable PLIC and Clint, and change coreplex internal network names 2017-06-20 17:18:45 -07:00
Henry Cook
5552f23294 tims: explictly name them for generated address map 2017-06-20 17:18:29 -07:00
Henry Cook
6b79842e66 dcache: just left shift by untagbits to get tag 
Always safe because of the requirement on coreplex/RocketTiles.scala:126
 2017-06-20 16:35:28 -07:00
Wesley W. Terpstra
bb309e573f TLSplitter: special-case the case of no split necessary 2017-06-20 14:10:25 -07:00
Wesley W. Terpstra
53f030c037 TLSplitter: default policy is roundRobin 
Track commit 274d908d98
 2017-06-20 14:03:01 -07:00
Wesley W. Terpstra
1aa4f5ce33 TLSplitter: QoR improvements 
Track commit 985d9750e6
 2017-06-20 14:01:07 -07:00
Wesley W. Terpstra
f6e0dd12c8 TLSplitter: ManagerUnification is not used in Xbars 
Track the change made in 5994714970
 2017-06-20 13:58:30 -07:00
Andrew Waterman
f396b4142d Merge pull request #806 from freechipsproject/mulh 
Improve integer mul/div
 2017-06-20 13:01:16 -07:00
Colin Schmidt
675f183dd2 refactor ICache to be reusable by other frontends (#808) 
* refactor ICache to be reusable by other frontends

specifically one that would like to change the fetch width and number of
bytes in an instruction
 2017-06-20 08:21:01 -07:00
Andrew Waterman
a6d9884cc0 Improve integer mul/div 
- Signed integer multiplication latency is now deterministic (before,
it would take an extra cycle if the multiplier was negative).
- High-part multiplication is now one cycle faster.
- RV64 MULW now takes half as many cycles as MUL.
- Positive remainders are now one cycle faster.
 2017-06-19 12:09:21 -07:00
Richard Xia
61c39da475 Check for rvc before declaring illegal instruction after an ebreak. 2017-06-16 10:49:36 -07:00
Wesley W. Terpstra
93d423d202 diplomacy: optimize IdRange.contains (#798) 
This should make an optimal circuit for a wider class of ranges.
 2017-06-15 15:56:14 -07:00
Shreesha Srinath
4059d9417f GeneratorUtils: support to elaborate a RawModule 2017-06-15 14:33:02 -07:00
Henry Cook
5368ea60fe Merge pull request #757 from freechipsproject/isp-port 
Inter-System-Port
 2017-06-15 13:07:19 -07:00
Wesley W. Terpstra
1f8c4ba4ca CoreplexNetwork: don't force a buffer on the coherence manager 
Let the l2Config.coherenceManager create its own appropriate buffers.
This can matter if you need to make sure the buffer is in the right
place in the hierarchy for hierarchical place and route.
 2017-06-14 14:27:23 -07:00
Wesley W. Terpstra
4a15d47061 diplomacy: BufferParams can now directly create a Queue 2017-06-14 13:47:37 -07:00
Wesley W. Terpstra
b4b165112c PeripheryErrorSlave: do not put a TLMonitor between the fragmenter and slave 
This edge has the largest number of source bits by far. Let's just exclude it.
 2017-06-13 16:59:29 -07:00
Wesley W. Terpstra
94f85e8bc8 tilelink2: TLMonitor will not create giant wires 2017-06-13 16:58:22 -07:00
Colin Schmidt
8264c0a77e add a debug print for xbar id mappings 2017-06-13 16:58:21 -07:00
Henry Cook
9bbde9767c rocketchip: top-level systems are now multi-IO modules 
Cake pattern only 2 layers instead of 3.
Standardized naming convention.
Comments for periphery mix-ins.
Testharnesses use new periphery helper methods.
 2017-06-13 13:55:45 -07:00
Henry Cook
2e8a40a23f diplomacy: Allow LazyModuleImps to be based on RawModules or MultiIOModules 
And add a MonitorBase class to be connect's return type.
 2017-06-13 13:55:27 -07:00
Andrew Waterman
76af15a6ff Fix FPU control bug for div/sqrt 
I was examining a WB-stage control signal instead of a MEM-stage control
signal.  I refactored the code to group the signals together, so that this
sort of bug is less likely going forward.
 2017-06-09 15:51:06 -07:00
Andrew Waterman
8552c77972 Fix I$ reset regression FU-357 
Can't rely on s2 TLB response, so mask using s2_valid.
 2017-06-09 00:48:24 -07:00
Andrew Waterman
5a4daebbcc minNum -> minimumNumber (#766) 2017-06-08 11:12:52 -07:00
Andrew Waterman
8cb250cfe6 Fix FMUL sign, again (#789) 2017-06-08 01:50:00 -07:00
Leway Colin
60c896b48c Typo: is should be if ? (#786) 
Typo: is should be if ?
 2017-06-07 10:40:13 -07:00
Andrew Waterman
d45fc0d670 Merge pull request #785 from freechipsproject/fmul-fix 
Fix FMUL sign of zero
 2017-06-06 00:46:03 -07:00