Digital Equipment Corporation AlphaPC 164SX User's Guide

Digital Equipment CorporationMaynard, Massachusettshttp://www.digital.com/semiconductorAlpha Microprocessors Motherboard Debug MonitorUser’s GuideOrde

xContent OverviewThe information in this document is organized as follows:• Chapter 1 is an introduction to the Debug Monitor.• Chapter 2 describes ho

4–60 User CommandsUser CommandsflbootflbootThe flboot command downloads the specified file from the diskette and begins execution of that file.Formatf

User Commands 4–61User CommandsflcdflcdThe flcd command displays or changes the current working directory or drive.Formatflcd [drive_pathname]Paramete

4–62 User CommandsUser CommandsflcdExampleAlphaPC 64> flcd a:\AlphaPC 64> fldirHigh Density selected10/04/95 02:07p 203088 rom.

User Commands 4–63User CommandsflcopyflcopyThe flcopy command copies a file to another location.Formatflcopy source_file destination_fileParameterssou

4–64 User CommandsUser CommandsflcopyExampleAlphaPC 64> flcd \dir3a:\dir3\AlphaPC 64> fldirHigh Density selected10/06/95 10:05a <

User Commands 4–65User CommandsfldirfldirThe fldir command displays a list of files in the current or specified directory.Formatfldir [drive_pathname]

4–66 User CommandsUser CommandsfldirExampleAlphaPC 64> flcda:\AlphaPC 64> fldirHigh Density selected 10/04/95 02:07p 203088 rom

User Commands 4–67User CommandsflloadflloadThe flload command downloads the specified file from the diskette.Formatflload file [address]Parametersfile

4–68 User CommandsUser CommandsflreadflreadThe flread command reads logical sectors from a diskette.Formatflread [first_sector [bytes [dest_address [i

User Commands 4–69User CommandsflreadExampleAlphaPC164> flread 1High Density selectedReading 0 bytes to 0x300000 starting at sector 1.Done... 512 (

Introduction 1–1 1Introduction1.1 Overview The Alpha Microprocessors Motherboard Debug Monitor can be used to load code into the system and perform ot

4–70 User CommandsUser CommandsflsaveflsaveThe flsave command writes a memory range to a file.Formatflsave file_name start_address file_sizeParameters

User Commands 4–71User CommandsflwriteflwriteThe flwrite command writes data to logical sectors on a diskette.Caution: This is a destructive command.

4–72 User CommandsUser CommandsflwriteExampleAlphaPC164> flwrite 30High Density selectedWriting 0 bytes from 0x400000 starting at sector 30.Done...

User Commands 4–73User CommandsfwupdatefwupdateThe fwupdate command loads and runs the firmware update utility from diskette.FormatfwupdateParametersN

4–74 User CommandsUser CommandsgogoThe go command begins execution of instructions at the specified address.Formatgo [start_address]Parametersstart_ad

User Commands 4–75User CommandshelphelpThe help command displays a list of commands currently available. If you specify a command keyword, information

4–76 User CommandsUser CommandshelpExampleThe help command without a parameter displays a list of all commands implemented in the current version of t

User Commands 4–77User CommandsiackiackThe iack command performs an interrupt acknowledge cycle.FormatiackParametersNone.DescriptionThe iack command a

4–78 User CommandsUser CommandsidentidentThe ident command displays revision control system (RCS) ID strings found in the specified memory range.Forma

User Commands 4–79User CommandsidentExampleEB64> ident 0 80000Id: crt_startup.s,v 1.3 1993/06/18 20:30:03 fdh Rel $ Id: crt.c,v 1.1 1993/06/08 19:5

1–2 IntroductionRecommended Host System• Disassemble CPU instructions in memory.• Transfer control to programs loaded into memory.• Perform native deb

4–80 User CommandsUser CommandsinitinitThe init command reinitializes the Debug Monitor.FormatinitParametersNone.DescriptionThe init command restarts

User Commands 4–81User CommandsjtopaljtopalThe jtopal command sets the environment to PALmode and begins execution of instructions at the specified ad

4–82 User CommandsUser CommandsladebugladebugThe ladebug command starts the Ladebug server for a remote debug session.FormatladebugParametersNone.Desc

User Commands 4–83User CommandsladebugExampleEB64> netload size Ethernet Base Address: 360, DMA Mask: 1 = DRQ5Init Block Address 100000Init Done.Et

4–84 User CommandsUser CommandsloadloadThe load command downloads a file through the active serial port using the XMODEM protocol.Formatload [address]

User Commands 4–85User CommandsmcesmcesThe mces command sets or displays the machine check error summary register.Formatmces [mces_data]Parametersmces

4–86 User CommandsUser CommandsmcheckmcheckThe mcheck command controls the reporting of hardware error conditions (machine checks).Formatmcheck state

User Commands 4–87User CommandsmcheckThe mcheck command could also modify the machine check error summary register. See the mces command for more info

4–88 User CommandsUser CommandsmemtestmemtestThe memtest command tests a memory range.Formatmemtest [iterations [start_address [end_address [incremen

User Commands 4–89User CommandsmemtestWhile conducting the memory test, correctable read data errors may be encountered, indicating memory integrity p

Getting Started 2–1 2Getting Started2.1 OverviewThis chapter describes how to set up your motherboard and host system.2.2 System RequirementsThe minim

4–90 User CommandsUser CommandsmrbmrbThe mrb command reads a byte from memory in the register port in I/O address space.Formatmrb address [iterations

User Commands 4–91User CommandsmrlmrlThe mrl command reads a longword from memory in the register port in I/O address space.Formatmrl address [iterati

4–92 User CommandsUser CommandsmrwmrwThe mrw command reads a word from memory in the register port in I/O address space.Formatmrw address [iterations

User Commands 4–93User CommandsmwbmwbThe mwb command writes a byte to memory in the register port in I/O address space.Formatmwb address data [iterati

4–94 User CommandsUser CommandsmwlmwlThe mwl command writes a longword to memory in the register port in I/O address space.Formatmwl address data [ite

User Commands 4–95User CommandsmwwmwwThe mww command writes a word to memory in the register port in I/O address space.Formatmww address data [iterati

4–96 User CommandsUser CommandsnetbootnetbootThe netboot command downloads the specified file through the Ethernet port and begins execution of that f

User Commands 4–97User CommandsnetbootExampleThis example downloads and begins execution of a file called size. EB64> netboot sizeEthernet Base Add

4–98 User CommandsUser CommandsnetloadnetloadThe netload command downloads the specified file through the Ethernet port to the default boot address.F

User Commands 4–99User CommandsnetloadExampleIn this example, a file called size is loaded into the default boot address.EB64> netload size Etherne

2–2 Getting StartedConfiguring Your SystemAfter the terminal and the motherboard are connected and the motherboard is powered on, the terminal screen

4–100 User CommandsUser CommandsnextnextThe next command executes the machine instruction without stepping into subroutines. Formatn[ext]ParametersNon

User Commands 4–101User CommandsnextExampleIn the following example, the step command used at address 200034 steps to the first instruction of the fun

4–102 User CommandsUser CommandspbpbThe pb command displays the specified memory byte (8-bit).Formatpb [start_address [end_address [iterations [silent

User Commands 4–103User CommandspbExampleThis example displays 128 bytes from memory starting with 100000 in byte format.EB64> pb 10000000100000: 0

4–104 User CommandsUser CommandspcishowpcishowThe pcishow command displays the contents of each PCI slot and the current PCI-to-system address space m

User Commands 4–105User CommandspcishowExampleEB164> pcishowPCI Address Mapping windows are: (1) PCI Base = 0x00100000, Size = 0x00100000

4–106 User CommandsUser CommandspfregpfregThe pfreg command displays the saved CPU floating-point register state.Formatpfreg [address]Parametersaddres

User Commands 4–107User CommandsplplThe pl command displays the specified memory longword (32-bit).Formatpl [start_address [end_address [iterations [s

4–108 User CommandsUser CommandsplExampleThis example displays memory longwords.EB64> pl 000000000: E7E01021 00000000 00000000 00000000 !...

User Commands 4–109User CommandspqpqThe pq command displays the specified memory quadword (64-bit).Formatpq [start_address [end_address [iterations [s

Getting Started 2–3Configuring Your SystemSave these settings in a file. For example, settings for the EB64 could be saved in a file called eb64.trm.F

4–110 User CommandsUser CommandspqExampleThis example displays memory quadwords.EB64> pq00000000: 00000000E7E01021 0000000000000000 !...

User Commands 4–111User CommandsprbprbThe prb command reads a byte (8 bits) from the specified address in the PCI configuration space.Formatprb pci_ad

4–112 User CommandsUser CommandspregpregThe preg command displays the saved CPU general-purpose register state.Formatpreg [address] ParametersaddressS

User Commands 4–113User CommandsprlprlThe prl command reads a longword (32 bits) from the specified address in the PCI configuration space.Formatprl p

4–114 User CommandsUser CommandsprwprwThe prw command reads a word (16 bits) from the specified address in the PCI configuration space.Formatprw pci_a

User Commands 4–115User CommandsprwExampleAlphaPC 64> pcishowPCI Address Mapping windows are: (1) PCI Base = 0x00100000, Size = 0x00100000

4–116 User CommandsUser CommandspwpwThe pw command displays the specified memory word (16-bit).Formatpw [start_address [end_address [iterations [silen

User Commands 4–117User CommandspwExampleThis example displays eight memory addresses starting with 10000016 in word format.EB64> pw 10000000100000

4–118 User CommandsUser CommandspwbpwbThe pwb command writes a byte (8 bits) to an address in the PCI configuration space.Formatpwb pci_address id d

User Commands 4–119User CommandspwlpwlThe pwl command writes a longword (32 bits) to an address in the PCI configuration space.Formatpwl pci_address

2–4 Getting StartedConfiguring Your System2.3.4.1 Connecting to a Serial Port After you modify the /etc/remote and /etc/inittab files, you can connect

4–120 User CommandsUser CommandspwwpwwThe pww command writes a word (16 bits) to an address in the PCI configuration space.Formatpww pci_address id da

User Commands 4–121User CommandsraboxraboxThe rabox command reads the CPU ABOX_CTL register.FormatraboxParametersNone.DescriptionThe rabox command rea

4–122 User CommandsUser CommandsrbrbThe rb command reads a byte (8 bits) from a register port in I/O address space.Formatrb register [iterations [sile

User Commands 4–123User CommandsrbcfgrbcfgThe rbcfg command reads the backup cache configuration register.FormatrbcfgParametersNone.DescriptionThe rbc

4–124 User CommandsUser CommandsrbctlrbctlThe rbctl command reads the backup cache control register.FormatrbctlParametersNone.DescriptionThe rbctl com

User Commands 4–125User CommandsrbiurbiuThe rbiu command reads the CPU BIU_CTL register.FormatrbiuParametersNone.DescriptionThe rbiu command reads the

4–126 User CommandsUser CommandsriccsrriccsrThe riccsr command reads the CPU ICCSR register.FormatriccsrParametersNone.DescriptionThe riccsr command r

User Commands 4–127User CommandsrlrlThe rl command reads a longword (32 bits) from a register port in I/O address space.Formatrl register [iterations

4–128 User CommandsUser CommandsrmodermodeThe rmode command sets the dis command register display mode.Formatrmode [mode]ParametersmodeDetermines the

User Commands 4–129User CommandsrmodeThe following table displays the DIGITAL UNIX Alpha microprocessor register usage.If you enter the command withou

Getting Started 2–5Updating the Debug Monitor Firmware4. Modify the /etc/bootptab file to specify the Ethernet hardware address of the motherboard and

4–130 User CommandsUser CommandsrmodeExampleEB64> rmodermode = 0EB64> dis 243a0000243A0: 43020122 subl r24, r2, r2000243A4: 48441722

User Commands 4–131User CommandsrombootrombootThe romboot command loads the specified image from ROM and begins execution.Formatromboot [type] [addres

4–132 User CommandsUser CommandsrombootThe romboot command can also be used to select a ROM image based on its position in the ROM. Specifying the typ

User Commands 4–133User CommandsrombootAlphaPC 64> romboot ntSearching for the “Windows NT Firmware”. Header Size... 52 bytes Image Check

4–134 User CommandsUser CommandsromlistromlistThe romlist command lists the ROM image headers contained in ROM.FormatromlistParametersNone.Description

User Commands 4–135User CommandsromloadromloadThe romload command loads the specified image from ROM to the specified address.Formatromload [type] [ad

4–136 User CommandsUser CommandsromloadThe romload command can also be used to select a ROM image based on its position in the ROM. Specifying the typ

User Commands 4–137User CommandsromloadAlphaPC 64> romload ntSearching for “Windows NT Firmware”. Header Size... 52 bytes Image Checksum.

4–138 User CommandsUser CommandsromverifyromverifyThe romverify command compares an image in memory to an image in the ROM.Formatromverify [type [addr

User Commands 4–139User CommandsromverifyExamplesAlphaPC164> romload #0 300000Loading entire ROM.Loading ROM to address 00300000Loaded 1048576 byte

2–6 Getting StartedUpdating the Debug Monitor FirmwareFor the AlphaPC 164SX, AlphaPC 164LX, AlphaPC 164, EB164, AlphaPC 64, and EB66+, you update the

4–140 User CommandsUser CommandsrsysrsysThe rsys command reads the EB64 system control register.FormatrsysParametersNone.DescriptionThe rsys command d

User Commands 4–141User CommandsrwrwThe rw command reads a word (16 bits) from a register port in I/O address space.Formatrw register [iterations [sil

4–142 User CommandsUser CommandssbsbThe sb command searches memory by bytes (8-bit).Formatsb start_address end_address string [inverse]Parametersstart

User Commands 4–143User CommandssbExampleEB64> pl 100000 10008000100000: C3E00007 00000000 00000000 00000000 ...00100010: 00000000 000

4–144 User CommandsUser CommandssetbaudsetbaudThe setbaud command sets the baud rate for the specified communication port connection.Formatsetbaud por

User Commands 4–145User CommandssettysettyThe setty command sets the Debug Monitor to the specified port.Formatsetty portParametersportSpecifies the n

4–146 User CommandsUser CommandsslslThe sl command searches memory by longwords (32-bit).Formatsl start_address end_address string [inverse]Parameters

User Commands 4–147User CommandsslExampleEB64> pl 10000000100000: C3E00007 00000000 00000000 00000000 ...00100010: 00000000 00000000 0

4–148 User CommandsUser CommandssqsqThe sq command searches memory by quadwords (64-bit).Formatsq start_address end_address string [inverse]Parameters

User Commands 4–149User CommandssqExampleEB64> pq00000000: 00000000C3E00007 0000000000000000 ...00000010: 0000000000000000 00000000000

Getting Started 2–7Updating the Debug Monitor FirmwareUse the following table to determine the update procedure for your motherboard.2.4.2 Updating th

4–150 User CommandsUser CommandsstepstepThe step command executes the next instruction.Formats[tep]ParametersNone.DescriptionUse the step command and

User Commands 4–151User CommandsstepExampleEB164> dis00200030: a77d8010 ldq r27, 32784(r29)00200034: 6b5b4000 jsr r26, r270

4–152 User CommandsUser CommandsstopstopThe stop command sets a breakpoint.Formatstop addressParametersaddressSpecifies the address at which the break

User Commands 4–153User CommandssumsumThe sum command computes the checksum of the data in the specified range.Formatsum start_address end_addressPara

4–154 User CommandsUser CommandsswswThe sw command searches memory by words (16-bit).Formatsw start_address end_address string [inverse]Parametersstar

User Commands 4–155User CommandsswpiplswpiplThe swpipl command sets or displays the current interrupt priority level (IPL) of the CPU.Formatswpipl [ip

4–156 User CommandsUser CommandssysshowsysshowThe sysshow command displays all SROM parameters.FormatsysshowParametersNone.DescriptionThe sysshow comm

User Commands 4–157User CommandstiptipThe tip command connects to the specified serial communication port.Formattip portParametersportSpecifies the se

4–158 User CommandsUser CommandsversionversionThe version command displays the current Debug Monitor firmware version information.FormatversionParamet

User Commands 4–159User CommandswaboxwaboxThe waboxcommand writes to the CPU ABOX_CTL register.Formatwabox dataParametersdataSpecifies the new value

October 1997While DIGITAL believes the information included in this publication is correct as of the date of publication, it is subject to change with

2–8 Getting StartedUpdating the Debug Monitor FirmwareTwo levels of keyboard help are available:• Press F1 once to display explanations of the keystro

4–160 User CommandsUser CommandswbwbThe wb command writes a byte (8 bits) to a register port in I/O address space.Formatwb register data [iterations]P

User Commands 4–161User CommandswbcfgwbcfgThe wbcfg command writes to the backup cache configuration register.Formatwbcfg bcfg_data [bctl_data] Parame

4–162 User CommandsUser CommandswbctlwbctlThe wbctl command writes to the backup cache control register.Formatwbctl bctl_data [bcfg_data]Parametersbct

User Commands 4–163User CommandswbiuwbiuThe wbiu command writes to the CPU BIU_CTL register.Formatwbiu dataParametersdataSpecifies the new value writt

4–164 User CommandsUser CommandswiccsrwiccsrThe wiccsr command writes to the CPU ICCSR register.Formatwiccsr dataParametersdataSpecifies the new value

User Commands 4–165User CommandswlwlThe wl command writes a longword (32 bits) to a register port in I/O address space.Formatwl register data [iterati

4–166 User CommandsUser CommandswrfenwrfenThe wrfen command enables or disables floating point.Formatwrfen valueParametersvalueSpecifies a value of 0

User Commands 4–167User CommandswsyswsysThe wsys command writes to the EB64 system control register.Formatwsys data ParametersdataSpecifies a value th

4–168 User CommandsUser CommandswwwwThe ww command writes a word (16 bits) to a register port in I/O address space.Formatww register data [iterations]

Support, Products, and Documentation A–1 ASupport, Products, and DocumentationIf you need technical support, a DIGITAL Semiconductor Product Catalog,

Getting Started 2–9Updating the Debug Monitor Firmware4. The AlphaBIOS Upgrade Options screen is displayed. If more than one image is found, the new i

A–2 Support, Products, and DocumentationDIGITAL Semiconductor ProductsNote:The following products and order numbers might have been revised. For the l

Support, Products, and Documentation A–3DIGITAL Semiconductor DocumentationThe following table lists some of the available DIGITAL Semiconductor docum

A–4 Support, Products, and DocumentationThird-Party DocumentationYou can order the following third-party documentation directly form the vendor.1To pu

Index–1Index AAlpha, 1–2documentation, A–3Alpha SRM Console firmware, 2–11AlphaBIOS, 2–7apropos, 4–11arpshow, 4–12Audience, ixBBaud rate, 2–1bcoff, 4–

Index–2creg, 4–31cw, 4–33DDaemon log file, 2–5date, 4–35Debug Monitor commands, 4–10Debuggerdefinition of, 3–1Debugging hints, 3–1delete, 4–36Digital

Index–3HHardware requirements, 2–1help, 4–75Host system, 2–4Iiack, 4–77ident, 4–78init, 4–80Introduction, 1–1Jjtopal, 2–18, 4–81KKernel stack, 2–17LLa

Index–4pwl, 4–119pww, 4–120Rrabox, 4–121rb, 4–122rbcfg, 4–123rbctl, 4–124rbiu, 4–125Recommended host system, 1–2Related documentation, A–3Remote debug

Index–5wbiu, 4–163wiccsr, 4–164Windows NT, 1–2, 2–2wl, 4–165wrfen, 4–166wsys, 4–167ww, 4–168

2–10 Getting StartedUpdating the Debug Monitor FirmwareWhen you power up your motherboard system, the firmware displays a blue screen on the monitor a

Getting Started 2–11Updating the Debug Monitor FirmwareStarting the Firmware Update UtilityTo start the firmware update utility from the firmware upda

2–12 Getting StartedUpdating the Debug Monitor FirmwareA display appears showing information about the devices on your system. In the following exampl

Getting Started 2–13Updating the Debug Monitor Firmware5. If updating the firmware on the AlphaPC 164SX or the AlphaPC 164LX, go to Section 2.4.2. If

2–14 Getting StartedUpdating the Debug Monitor Firmwarethe COM1 serial port or on the graphics display unit after starting the firmware update utility

Getting Started 2–15Switching to the Debug Monitor Firmware on Flash ROM SystemsNote: For versions of the Debug Monitor firmware prior to V2.0, the pr

2–16 Getting StartedDebug Monitor Memory MapSwitching from Alpha SRM Console FirmwareTo switch to the Debug Monitor firmware from the Alpha SRM Consol

Getting Started 2–17Debug Monitor Memory MapFigure 2–1 Debug Monitor Memory MapThe Debug Monitor image consists of PALcode at physical address 0 and t

iii ContentsPreface1 Introduction1.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–18 Getting StartedDownloading Files2.6.2 DMA BuffersVarious devices used with the motherboard require direct memory access (DMA). The device drivers

Getting Started 2–19Resetting the Debug Monitor2.9 Resetting the Debug MonitorIf the software hangs the motherboard, then the hardware reset on the bo

Remote Debugging 3–1 3Remote DebuggingThe Debug Monitor supports remote debugging for DIGITAL UNIX host systems with Ladebug. The Ladebug software pro

3–2 Remote DebuggingProgramming Guidelines3.4 Programming GuidelinesThe following sections describe the programming guidelines for remote debugging.3.

Remote Debugging 3–3Programming GuidelinesPrograms that define or install their own interrupt handler must ensure that the Debug Monitor polls the Eth

3–4 Remote DebuggingLadebug Command Line Options• The debug server uses the DBGSTOP PAL call to implement breakpoints. The program must contain an ide

Remote Debugging 3–5Building the Executable FileNote: The debug server can only be used to debug already loaded processes; therefore, the pid option m

3–6 Remote DebuggingStarting a Ladebug Session3.7 Starting a Ladebug SessionThe Debug Monitor ladebug command configures the motherboard as a remote d

Remote Debugging 3–7Starting a Ladebug SessionThe following command, entered from the host system, starts Ladebug and causes it to connect to the EB64

iv2.8 Execution Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–182.9 Resetting the Debug Monito

User Commands 4–1 4User Commands4.1 OverviewThis chapter describes how to use the Alpha Microprocessors Motherboard Debug Monitor commands.The Debug M

4–2 User CommandsUsing the Commands1If you connected to the motherboard through the DIGITAL UNIX tip command, you must press Ctrl/P twice to obta

User Commands 4–3Using the Commands• Examine and modify memory commandsThese commands are used to examine and change memory in various formats beginni

4–4 User CommandsUser Commands Quick Reference4.3 User Commands Quick ReferenceTable 4–1 contains a summary of all Debug Monitor commands. The command

User Commands 4–5User Commands Quick Referenceromboot type, address Loads the specified image from ROM and begins execution.romlist none Lists the ROM

4–6 User CommandsUser Commands Quick Referencecl address Edits memory longwords (32-bit).cw address Edits memory words (16-bit).cb address Edits memor

User Commands 4–7User Commands Quick Referencemrb address, iterations, silentReads a byte from memory in I/O address space.mwl address, data, iteratio

4–8 User CommandsUser Commands Quick Referencepwb pci_address, id, data, bus, functionWrites a byte to a specified address in PCI configuration space.

User Commands 4–9User Commands Quick Referencestop address Sets a breakpoint at the specified address.bpstat none Displays the current breakpoint stat

vedevice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–42edmp. . . . . . . . . . . . . . . . .

4–10 User CommandsUser Commands4.4 User CommandsThe following section contains complete descriptions and examples of the Debug Monitor commands. The c

User Commands 4–11User CommandsaproposaproposThe apropos command displays help descriptions for the specified keyword.Formatapropos keywordParametersk

4–12 User CommandsUser CommandsarpshowarpshowThe arpshow command displays all known address resolution protocol (ARP) entries.FormatarpshowParametersN

User Commands 4–13User CommandsbcoffbcoffThe bcoff command disables the backup cache.FormatbcoffParametersNone.DescriptionThe bcoff command disables t

4–14 User CommandsUser CommandsbconbconThe bcon command enables the backup cache.FormatbconParametersNone.DescriptionThe bcon command enables the exte

User Commands 4–15User CommandsbeepbeepThe beep command tests the speaker.Formatbeep duration frequencyParametersdurationSpecifies the duration of the

4–16 User CommandsUser CommandsbootbootThe boot command downloads a file through the active serial port using the XMODEM protocol and begins execution

User Commands 4–17User CommandsbootadrbootadrThe bootadr command allows you to display or modify the default boot address.Formatbootadr [address]Param

4–18 User CommandsUser CommandsbootoptbootoptThe bootopt command selects the operating system and firmware type to be used on the next power-up.Format

User Commands 4–19User CommandsbootoptThe bootopt command can also be used to select a ROM image based on its position in the ROM. Specifying the type

viprl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–113prw . . . . . . . . . . . . . .

4–20 User CommandsUser CommandsbpstatbpstatThe bpstat command displays the current breakpoint status.FormatbpstatParametersNone.DescriptionThe bpstat

User Commands 4–21User CommandscbcbThe cb command allows you to edit memory bytes (8-bit).Formatcb [address]ParametersaddressSpecifies the address of

4–22 User CommandsUser CommandscfregcfregThe cfreg command modifies the saved CPU floating-point register state.Formatcfreg register_number valueParam

User Commands 4–23User CommandscfregExampleEB64> pfregFloating Point Registersregister file @: 0000C840f00: 0000000000000000 0000000000000000 00000

4–24 User CommandsUser CommandsclclThe cl command allows you to edit memory longwords (32-bit).Formatcl [address]ParametersaddressSpecifies the addres

User Commands 4–25User CommandscomparecompareThe compare command compares a memory range to a specified address.Formatcompare start_address end_addres

4–26 User CommandsUser CommandscontcontThe cont command continues execution from a breakpoint.FormatcontParametersNone.DescriptionThe cont command con

User Commands 4–27User CommandscopycopyThe copy command copies the specified memory range to the new specified address.Formatcopy start_address end_ad

4–28 User CommandsUser CommandscopyExampleThis example displays the original location and the destination before and after the copy command.EB64> p

User Commands 4–29User CommandscqcqThe cq command allows you to edit memory quadwords (64-bit).Formatcq [address]ParametersaddressSpecifies the addres

viiFigures2–1 Debug Monitor Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17

4–30 User CommandsUser CommandscqExampleThis example modifies only quadword 20002016.EB64> cq 20002000200020: 0000000004000000: 000000001111111100

User Commands 4–31User Commandscregcreg The creg command modifies the saved CPU general-purpose register state.Formatcreg register_number valueParame

4–32 User CommandsUser CommandscregExampleEB64> pregGeneral Purpose Registersregister file @: 0000C040r00: 0000000000000020 0000000000000005 000000

User Commands 4–33User CommandscwcwThe cw command allows you to edit memory words (16-bit).Formatcw [address]ParametersaddressSpecifies the address of

4–34 User CommandsUser CommandscwExampleThis example modifies words 20009416 through 20009816.EB64> pw 20009000200090: 3BB9 CA6D FFB9 CFE7 3FBF FFF

User Commands 4–35User CommandsdatedateThe date command displays or modifies the date and time.Formatdate [yymmddhhmmss]ParametersyymmddhhmmssTo modif

4–36 User CommandsUser CommandsdeletedeleteThe delete command removes a breakpoint from the specified address.Formatdelete address ParametersaddressSp

User Commands 4–37User CommandsdisdisThe dis command displays memory as CPU instructions.Formatdis [start_address [end_address]]Parametersstart_addres

4–38 User CommandsUser CommandsdisExampleEB64> dis 243a0000243A0: 43020122 subl r24, r2, r2000243A4: 48441722 sll r2, 0x

User Commands 4–39User CommandsdmldmlThe dml command deposits the specified longword data in the specified memory location.Formatdml address data [ite

viiiTables4–1 Command Summary Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4

4–40 User CommandsUser CommandsdmqdmqThe dmq command deposits the specified quadword data in the specified memory location.Formatdmq address data [ite

User Commands 4–41User CommandsebuffebuffThe ebuff command sets the base address for the Ethernet transmit receive buffers.Formatebuff [address] Param

4–42 User CommandsUser CommandsedeviceedeviceThe edevice command selects the registered Ethernet device that the Debug Monitor will use.Formatedevice

User Commands 4–43User CommandsedmpedmpThe edmp command displays packets received or transmitted to the terminal screen.Formatedmp [status] Parameters

4–44 User CommandsUser CommandseiniteinitThe einit command initializes the Ethernet controller.FormateinitParametersNone.DescriptionThe einit command

User Commands 4–45User CommandsemlemlThe eml command examines and displays a longword of data in memory.Formateml address [iterations [silent]] Parame

4–46 User CommandsUser CommandsemqemqThe emq command examines and displays a quadword of data in memory.Formatemq address [iterations [silent]] Parame

User Commands 4–47User CommandsepromepromThe eprom command sets or clears a flag for receiving all packets (promiscuous mode).Formateprom [status]Para

4–48 User CommandsUser CommandseregeregThe ereg command displays the Ethernet controller registers.FormateregParametersNone.DescriptionThe ereg comman

User Commands 4–49User CommandseregExampleEB64> ww 372 0EB64> ww 370 4EB64> ereg Ethernet Controller Base Address 360, CSR 0...1260 0004

ix PrefaceIntroductionThis document describes the software features of an Alpha microprocessor motherboard. The motherboard software is intended to pr

4–50 User CommandsUser CommandseshoweshowThe eshow command displays all of the registered Ethernet devices.FormateshowParametersNone. DescriptionThe e

User Commands 4–51User CommandsestatestatThe estat command displays Ethernet statistics.FormatestatParametersNone.DescriptionThe estat command display

4–52 User CommandsUser CommandsestopestopThe estop command stops the Ethernet controller.FormatestopParametersNone.DescriptionThe estop command allows

User Commands 4–53User CommandsfillfillThe fill command fills a specified memory block with the specified 32-bit pattern.Formatfill start_address end_

4–54 User CommandsUser CommandsfillExampleThis example displays the original value in address range 08000000 through 08000080 and the value of the sam

User Commands 4–55User CommandsflashflashThe flash command programs data into flash memory.Formatflash [source_address [destination_offset [bytes_to_w

4–56 User CommandsUser CommandsflashExampleAlphaPC 64> netload pc64dbm.romAttempting BOOTP...Loading /users/eval/pc64/pc64dbm.rom at 300000 My IP a

User Commands 4–57User Commandsflash Press Y to proceed, any other key to abort. Writing Flash Block: 4W 5W 6W 7W Verifying Flash Block

4–58 User CommandsUser CommandsflasheraseflasheraseThe flasherase command erases data from flash memory.Formatflasherase [starting_offset [bytes_to_er

User Commands 4–59User Commandsflasherase Firmware ID (Opt.).. 0202009706130904 ... ROM offset... 0x00000000 Header Checksum... 0x94