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Built-In Functions and CommandsThese built-in functions and commands are described in the following sections.System FunctionsUTILITY FUNCTIONS AND COMMANDSMiscellaneouschdir() time() gethelp() file_info() sleep() calc() lscmd savstateunix() date() getenv() whatis() spec_par() history memstat sock_io()KEYBOARD AND FILE INPUT,SCREEN AND FILE OUTPUTControlling Reading From Keyboard Text BinaryOutput Files Files Input Output Input/Outputopen() on() getline() input() print fprintf() fmt_read()close() off() dofile() yesno() printf() tty_cntl() fmt_write()qdofile() getval() eprint tty_move() fmt_close()eprintf() tty_fmt()VARIABLESglobal constant delete symsunglobal local arrayMACROSdef prdef undefrdef lsdef cdef()HARDWARE FUNCTIONS AND COMMANDSMCA Images CAMAC GPIB SERIAL POR T I/O VMEmca_sel() image_par() ca_get() gpib_get() ser_get() port_get() vme_get()mca_par() image_get() ca_put() gpib_put() ser_put() port_getw() vme_put()mca_get() image_put() ca_fna() gpib_poll() ser_par() port_put() vme_get32()mca_put() ca_cntl() gpib_cntl() port_putw() vme_put32()mca_spar()vme_move()mca_sget()mca_sput()Misc Counting Moving and Motorsreconfig mcount() cnt_mne() move_all motor_mne() read_motors()set_sim() tcount() cnt_name() move_cnt motor_name() dial() user()wait() getcounts cnt_num() sync motor_num() chg_dial() chg_offset()stop() counter_par() motor_par() get_lim() set_lim()DATA HANDLING AND PLOTTING FUNCTIONSarray_dump() array_op() data_grp() data_dump() data_bop() plot_cntl()array_read() array_fit() data_info() data_read() data_uop() plot_move()array_pipe() data_nput() data_pipe() data_anal() plot_range()array_plot() data_get() data_plot() data_fit()data_put()STRING AND NUMBER FUNCTIONSMath Functions Str ing Conversionexp() log() sin() cos() tan() index() length() asc() deg()exp10() log10() asin() acos() atan() split() sprintf() bcd() rad()srand() pow() atan2() substr() sscanf() dcb()rand() sqrt() fabs() int()68 REFERENCE MANUAL INTERIM WORK-IN-PROGRESS (8/16/01) NOT FOR GENERAL DISTRIBUTION
Utility Functions and CommandsAll functions return a number or string value that may be used in an expression.The return values of some functions are only of use in conditional expressions, sotheir return values are given as true or false. The corresponding number values are1and 0, respectively.System Functionschdir() — Changes spec’s current working directory to to the user’s home directoryas obtained from the user’s environment variable HOME. Returns true orfalse according to whether the command was successful or not. The value ofthe built-in string variable CWD is updated to the current working directory.chdir(directory) — As above, but changes to the directory directory ,which mustbe a string constant or expression.unix() — Spawns an interactive subshell using the program obtained from the user’senvironment variable SHELL (or shell ). Uses /bin/sh if the environmentvariable is not set. Returns the integer exit status of the shell.unix(command) — As above, but uses /bin/sh to execute the one-line commandcommand ,which must be a string constant or expression. Returns the integerexit status of the command.unix(command, str [, len ]) — As above, but the argument str is the name of avariable in which to place the string output from the command in the firstargument. The maximum length of the string is 4096 bytes (including a nullbyte). The optional third argument can be used to specify a larger size.time() — Returns the current epoch in seconds. The UNIX epoch is the number ofseconds from January 1, 1970, 00:00:00 GMT. The value returned includes afractional part with the resolution dependent on the host platform. Millisecondresolution is standard, although on 80X86 systems only hundredth of asecond resolution is returned.date() — Returns a string containing the current date asThu Jul 23 21:12:39 EDT 1992 .date(seconds) — As above, but the returned string represents the epoch given byseconds .See time() above.INTERIM WORK-IN-PROGRESS (8/16/01) NOT FOR GENERAL DISTRIBUTION REFERENCE MANUAL 69
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spec X-Ray Diffraction SoftwareUSER
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specX-Ray Diffraction SoftwareCerti
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TABLE OF CONTENTSUSER MANUAL AND TU
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Reciprocal Space Macros ...........
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Preface For the Interim ManualWe ap
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USER MANUAL AND TUTORIALS
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files is then identified (/usr/loca
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denotes variable parameters you sup
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spec also keeps track of software m
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13.FOURC> mvr th 114.FOURC>will mov
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8 0.98 0 0 17603 38839 19 0.99 0 0
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4.FOURC> p date(1e9)Sat Sep 8 21:46
Page 27 and 28: Controlling Output Tothe Printer an
Page 29 and 30: By convention, global variables in
Page 31 and 32: 16.FOURC> for (i = 0; i < MOTORS; i
Page 33 and 34: When a macro definition contains ar
Page 35 and 36: 38.FOURC> undef com39.FOURC> prdef
Page 37 and 38: 43.FOURC> lsdef *scanEscan (1448) a
Page 39 and 40: diffractometer. For example, they m
Page 41 and 42: set_lim(motor_number, low, high) an
Page 43 and 44: 66.FOURC> getcounts; printf("%s = %
Page 45 and 46: the number of bytes is less than n
Page 47 and 48: PLOT-> fnscans.4 options scan-numbe
Page 49 and 50: #S number Starts a new scan. number
Page 51 and 52: ShowscansThe showscans program is a
Page 53 and 54: REFERENCE MANUAL
Page 55 and 56: IntroductionThe material contained
Page 57 and 58: ArraysArrays are formed using squar
Page 59 and 60: Numer ic ConstantsNumeric constants
Page 61 and 62: !! Redo the previous command.!14 Re
Page 63 and 64: In some installations, spec is inst
Page 65 and 66: ExitingA spec session is normally t
Page 67 and 68: DEBUG — is a user-assignable nume
Page 69 and 70: USER — is string valued and is se
Page 71 and 72: The concatenation operator comes in
Page 73 and 74: The second form of the for statemen
Page 75 and 76: These are the grammar rules:express
Page 77: local identifier-list [ ; ]syms pat
Page 81 and 82: .sp N — spaces N lines. Without a
Page 83 and 84: ¢The formatting commands:.RB .BR .
Page 85 and 86: "ischr" or "−c" — Returns true
Page 87 and 88: polled devices, spec needs to perfo
Page 89 and 90: "show_prdef_files" — When this mo
Page 91 and 92: EOS sequence are read or until the
Page 93 and 94: ¡with dlog or ends with .dlog . De
Page 95 and 96: 10.FOURC> def change_it ’{11.quot
Page 97 and 98: tty_cntl(cmd) — Sends terminal-sp
Page 99 and 100: Commands For Var ia blesglobal name
Page 101 and 102: ¤£ ¢prdef pattern ... — As abo
Page 103 and 104: at the end of the line.Within a mac
Page 105 and 106: config file. Built-in code for the
Page 107 and 108: RS-232 Serial InterfacesSerial func
Page 109 and 110: vme_put32(addr, data [, dmode ])
Page 111 and 112: In addition, device-dependent value
Page 113 and 114: correction. If val is given, then t
Page 115 and 116: ¡and is set in the config file. Th
Page 117 and 118: ¡data_grp(grp, npts, wid) — Conf
Page 119 and 120: "min" — Returns the minimum value
Page 121 and 122: "xlog" — Use a logarithmic x axis
Page 123 and 124: continued line, appropriate for sav
Page 125 and 126: LIBS= parameters. If the tools prov
Page 127 and 128: ¡void set_return_data(double *x, i
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split(string, array) — Splits the
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STANDARD MACRO GUIDE
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IntroductionThe standard macros inc
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the argument is not a valid mnemoni
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Utility MacrosUNIX CommandsThese si
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# View (and modify), then reread co
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if ("$1" != ".") {DOFILE = "$1"if (
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Star t-up MacrosThese macros ask fo
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Motor Macrosmv motor posmvr motor p
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Change a motor limitdef set_lm ’i
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# Where - all motorsdef wa ’waitm
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# "count" is the basic macro to cou
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Reciprocal Space MacrosThe followin
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Scan MacrosThe following sections s
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Basic Reciprocal Space Scanshscan s
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def Pheader ’printf("\n Setpoint
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’}Here are examples of _settemp m
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Pr inter Initializa tion MacrosThes
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’X_L = motor_name(_m1)_sx = _s1 ;
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space scans, the limit check must l
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}}Pheaderprintf("\noffpprintf(" ")_
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# The loop macro, called by all the
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FOUR-CIRCLE REFERENCE
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IntroductionWhen invoked by the nam
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Once properly configured, diffracto
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Four-CircleModesAs noted above, bec
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asurface, keeping α small will kee
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¢¢¢¢Sector sSectors correspond
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Four-CircleFilesMost questions rega
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U[14] g_l0 or0, setor0 L of primary
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’gpset A[mA[1]] g_u01gpset A[mA[2
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global REFLEX # Variable for file n
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To calculate the new lattice parame
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ADMINISTRATOR’S GUIDE
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IntroductionThe first section of th
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The distribution will be in tar for
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¢KSC 3929 SCSI-CAMAC file location
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Installing Driver sIn the early his
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Fine Tuning the HardwareConfigurati
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...*gparam[3] = 1.54;...if (*gparam
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Makefile, and /usr/local/lib/spec.d
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Ena bling E/ISA I/O Por ts On HP 70
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ˆW Gain wizard access to set prote
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CA_LC2301CA_LC3512CA_LC3521CA_LC358
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MCU_O As above, but with old PROMsM
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config file that has the most motor
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the edconf program set-user id spec
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HARDWARE REFERENCE
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Introductionspec includes built-in
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DSP 6001/6002 CAMAC With No Driverc
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Kinetic Systems CAMAC Softwareconfi
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Any of the National Instruments boa
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National Instruments SB-GPIB Ver 1.
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modified version of the standard li
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Bit 3 Model 616/617 PCI-VMEBit 3 Mo
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Motor Controller sAdvanced Control
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panel controls. Youshould consult t
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Huber SMC 9000 (GPIB)config file:GP
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motors on the board) and clears the
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translation stages, the maximum val
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MOTORS DEVICE ADDR MODE NUM TYPEYES
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The driver is contained in the file
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30.FOURC> print motor_par(tth, "rea
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free-axis-displacement commands "L+
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PMC Corporation DCX-100 (Serial and
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Motor ParametersThe steps per deg/m
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Timer s and CountersAm9513-based Co
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DSP RTC-018 Real Time Clock (CAMAC)
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Kinetic Systems 3610 6-Channel 50 M
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Or tec 974/994/995/997 NIM Timer s
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Setting Operational ParametersThe c
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mca_par("first_ch") — returns the
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Oxford/Tennelec/Nucleus PCA Mutlipo
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mca_par("preset") — in PHA mode,
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¢REFERENCESJournal articles descri
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camac program, 199cat macro, 127cd
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opening, 6selecting, 6standard form
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saving to output device, 132scan, 1
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number,35, 37output, customizing, 1
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wait() function, 33, 68, 77, 78, 99
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¡spec (1) (CSS Utilities) spec (1)
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