Release laysim-GR740 v2.0

 laysim-GR740 v2.0 Quad Core Processor Emulator


1. Faster than Real GR740 Board (250MHz) under SMP Environment

▶ Single Core Performance 

laysim-gr740-dbt shows highest performance on Intel i9-12900K

    - Dhrystone : 915.71 MIPS (the real-time performance (RTP) is 462.10%)

    - Stanford : 463.87 MIPS (the RTP is 326.37%)

    - Whetstone-SP : 138.36 MIPS (the RTP is 113.13%)

▶ Multi Core Performance 

laysim-gr740-mdbt shows highest performance on Intel i9-12900K

    - RTEMS5.1 smpmigration02 : 721.54 MIPS (the RTP is 124.89%)

    - RTEMS5.1 smpmrsp01 : 867.52 MIPS (the RTP is 149.53%)

    - RTEMS5.1 smpmutex02 : 633.04 MIPS (the RTP is 146.76%)

    - RTEMS5.1 smpschedaffinity05 : 1099.81 MIPS (the RTP is 159.74%)

    - RTEMS5.1 smpschededf03 : 1054.84 MIPS (the RTP is 158.18%)

    - RTEMS5.1 smpswitchextension01 : 431.95 MIPS (the RTP is 141.89%)



2. Support the User Loadable Modules

▶ Support loadable modules for SPI, GPIO, UART, PCI, I/O, SpW Nodes, 1553B RTs, and CAN Nodes with CAN bus simulation.


3. Support the Shared Library

▶ laysim-GR740 also supports the shared library that can be integrated in an existing simulator. (save/restore are supported.)


4. Embedded Source Level Debugger

▶ laysim-gr740 includes the embedded source-level debugger, so it is possible to debug the GR740 SMP applications without GDB.



5. Fully Support for AIR, XtratuM and PikeOS Hypervisors

▶ laysim-GR740 also supports AIR/GMV hypervisor awareness, so it possible to debug the partitions of AIR with the embedded source-level debugger.



6. Support Code Coverage with RTEMS COVOAR

▶ laysim-GR740 supports the code coverage as same format of TSIM3-LEON4.




7. Supported GRLIB Devices in laysim-GR740

CoreFunctionVendor IDDevice IDEmulation in laysim-GR740
LEON4-FTLEON4 SPARC v8 32-bit processor0x010x048Supported by laysim-GR740
AHB2AHBUni-directional AHB/AHB bridge0x010x020Controlled by laysim-GR740
APBCTRLAHB/APB bridge0x010x006Controlled by laysim-GR740
APBUART8-bit UART with FIFO0x010x00CAPBUART is supported with Tx/Rx FIFO and loadable UART Module
AHBJTAGJTAG/AHB Debug interface0x010x01COnly P&P information
AHBSTATAHB Status Register0x010x052Supported by laysim-GR740
AHBTRACEAHB trace buffer0x010x017Only P&P information
IRQ(A)MPMultiprocessor interrupt controller0x010x00DSupported by laysim-GR740
DSU4LEON4 Debug Support Unit0x010x049Only P&P information
MMCTRLMemory controller0x010x05DSupported by laysim-GR740
GPTIMERModular timer unit with watchdog0x010x011Supported by laysim-GR740 (No watchdog)
GR1553BMIL-STD-1553B/AS15531 interface0x010x04DSupported by laysim-GR740 (BC only) with loadable 1553B RTs
GRCANCAN 2.0 controller with DMA0x010x03DSupported by laysim-GR740 with loadable CAN Nodes
GRCLKGATEClock gating unit0x010x02CSupported by laysim-GR740
GRETH_GBIT10/100/1000 Ethernet MAC with DCL0x010x01DSupported by laysim-GR740
GRGPIOGeneral Purpose I/O Port0x010x01ASupported by laysim-GR740 with loadable GPIO Modules
GRGPRBANKGeneral Purpose Register Bank0x010x08FSupported by laysim-GR740
GRGPREGGeneral Purpose Register0x010x087Supported by laysim-GR740
GRIOMMUAHB/AHB bridge with protection (IOMMU)0x010x04FSupported by laysim-GR740
SPICTRLSPI controller0x010x02DSPICTRL is supported with loadable SPI Module
GRPCI2Fast 32-bit PCI bridge0x010x07CSupported by laysim-GR740 with loadable PCI Module
GRSPW2SpaceWire codec with RMAP0x010x029Supported by laysim-GR740
GRSPWROUTERSpaceWire Router Switch0x010x08BSupported by laysim-GR740 with loadable SpW Nodes
GRSPWTDPSpaceWire - Time Distribution Protocol0x010x097Not supported in laysim-GR740
FTMCTRL8/16/32-bit memory controller with EDAC0x010x054Supported by laysim-GR740 (No EDAC)
L2CACHELevel 2 cache0x010x04BSupported by laysim-gr740 only (Not configurable)
L4STATLEON4 statistical unit0x010x047Not supported in laysim-GR740
MEMSCRUBMemory scrubber0x010x057Not supported in laysim-GR740
GR740THSENSGR740 Temperature sensor controller0x010x099Only register operation

Limitation of laysim-GR740 Evaluation Version

The evaluation version of laysim-GR740 has NO execution limitation except acquiring 1 year free license as described in user's manual chapter 2.2

Download laysim-GR740 Evaluation Version

The evaluation version of laysim-GR740 and user's manual can be downloaded from Download Article (https://layright.blogspot.com/2020/02/download-laysim-leon3.html).


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laysim-GR740 Quad Core Processor Emulator laysim-GR740 consists of three types of emulators: laysim-gr740 ,  laysim-gr740-dbt  and  laysim-gr740-mdbt . laysim-gr740 is a graphic user interface (GUI)-based and cycle-accurate emulator for the GR740 quad core processor based on interpretation method. It includes an embedded source-level debugger and supports MMU for Linux-SMP and XtratuM-SMP. laysim-gr740-dbt is a GUI-based high-performance and cycle-approximate processor emulator with dynamic binary translation method. laysim-gr740-mdbt  is a new parallel GR740 processor emulator which adopts the multi-thread framework with DBT through 2 years development by KARI. It can satisfy the real-time performance of GR740 on a high-end PC such as Intel i9-11900K @5GHz. All  laysim-gr740 ,  laysim-gr740-dbt  and  laysim-gr740-mdbt  support Windows and Linux x64 platform including CentOS 7/8, Ubuntu 18.04 and Debian 10.3. Also two types of CLI (Command Line Interface) version, laysim-gr740
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