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Interactive InterpreterΜεταβλητές
Η λειτουργία των Nutmeg και Spice3 μπορεί να επηρεαστεί με το να θέτουμε μεταβλητές, με την εντολή "set". Παράλληλα με τις μεταβλητές που αναφέρονται παρακάτω, η εντολή set στο Spice3 επίσης επηρεάζει την συμπεριφορά του εξομοιωτή μέσω των επιλογών που περιγράφονται στην ενότητα ".OPTIONS" .
Οι σημαντικές εντολές στο nutmeg οι οποίες μπορούν να τροποποιηθούν με την εντολή set, είναι :
| diff_abstol | he absolute tolerance used by the diff command. |
| appendwrite | Append to the file when a write command is issued, if one already exists. |
| colorN | These variables determine the colors used, if X is being run on a color display.IN may be between 0 and 15. Color 0 is the background, color 1 is the grid and text color, and colors 2 through 15 are used in order for vectors plotted. The value of the color variables should be names of colors, which may be found in the file /usr/lib/rgb.txt. |
| combplot | Plot vectors by drawing a vertical line from each point to the X-axis, as opposed to joining the points.Note that this option is subsumed in the plottype option, below. |
| cpdebug | Print cshpar debugging information (must be complied with the -DCPDEBUG flag). Unsupported in the current release |
| debug | If set then a lot of debugging information is printed (must be compiled with the -DFTEDEBUG flag).Unsupported in the current release. |
| device | The name (/dev/tty??) of the graphics device.If this variable isn't set then the user's terminal is used.To do plotting onanother monitor you probably have to set both the device and term variables.(If device is set to the name of a file, nutmeg dumps the graphics control codes into this file -- this is useful for saving plots.) |
| echo | Print out each command before it is executed. |
| filetype | This can be either ascii or binary, and determines what format rawfiles are. The default is ascii. |
| fourgridsize | How many points to use for interpolating into when doing fourier analysis. |
| gridsize | If this variable is set to an integer, this number is used as the number of equally spaced points to use for the Y-axis when plotting. Otherwise the current scale is used (which may not have equally spaced points). If the current scale isn't strictly monotonic, then this option has no effect. |
| hcopydev | If this is set, when the hardcopy command is run the resulting file is automatically printed on the printer named hcopydev with the command lpr -Phcopydev -g file. |
| hcopyfont | This variable specifies the font name for hardcopy output plots. The value is device dependent. |
| hcopyfontsize | This is a scaling factor for the font used in hardcopy plots. |
| hcopydevtype | This variable specifies the type of the printer output to use in the hardcopy command. If hcopydevtype is not set, plot (5) format is assumed. The standard distribution currently recognizes postscript as an alternative output format. When used in conjunction with hcopydev, hcopydevtype should specify a format supported by the printer. |
| hcopyfontsize | This is a scaling factor for the font used in hardcopy plots. |
| hcopydevtype | This variable specifies the type of the printer output to use in the hardcopy command. If hcopydevtype is not set, plot (5) format is assumed. The standard distribution currently recognizes postscript as an alternative output format. When used in conjunction with hcopydev, hcopydevtype should specify a format supported by the printer. |
| height | The length of the page for asciiplot and print col. |
| history | The number of events to save in the history list. |
| lprplot5 | This is a printf(3s) style format string used to specify the command to use for sending plot(5)-style plots to a printer or plotter. The first parameter supplied is the printer name, the second parameter supplied is a file name containing the plot. Both parameters are strings. It is trivial to cause Spice3 to abort by supplying a unreasonable format string. |
| lprps | This is a printf(3s) style format string used to specify the command to use for sending PostScript plots to a printer or plotter. The first parameter supplied is the printer name, the second parameter supplied is a file name containing the plot. Both parameters are strings. It is trivial to cause Spice3 to abort by supplying a unreasonable format string. |
| nfreqs | The number of frequencies to compute in the fourier command. (Defaults to 10.) |
| nobreak | Don't have asciiplot and print col break between pages. |
| noasciiplotvalue | Don't print the first vector plotted to the left when doing an asciiplot. |
| noclobber | Don't overwrite existing files when doing IO redirection. |
| noglob | Don't expand the global characters `*', `?', `[', `and `]'. This is the default. |
| nogrid | Don't plot a grid when graphing curves (but do label the axes). |
| nomoremode | If nomoremode is not set, whenever a large amount of data is being printed to the screen (e.g, the print or asciiplot commands), the output is stopped every screenful and continues when a carriage return is typed. If nomoremode is set then data scrolls off the screen without check. |
| nonomatch | If noglob is unset and a global expression cannot be matched, use the global characters literally instead of complaining. |
| nosort | Don't have display sort the variable names. |
| noprintscale | Don't print the scale in the leftmost column when a print col command is given. |
| numdgt | The number of digits to print when printing tables of data (fourier, print col). The default precision is 6 digits. On the VAX, approximately 16 decimal digits are available using double precision, so numdgt should not be more than 16. If the number is negative, one fewer digit is printed to ensure constant widths in tables. |
| plottype | This should be one of normal, comb, or point:chars. normal, the default, causes points to be plotted as parts of connected lines. comb causes a comb plot to be done (see the description of the combplot variable above). point causes each point to be plotted separately - the chars are a list of characters that are used for each vector plotted. If they are omitted then a default set is used. |
| polydegree | The degree of the polynomial that the plot command should fit to the data. If polydegree is N, then nutmeg fits a degree N polynomial to every set of N points and draw 10 intermediate points in between each endpoint. If the points aren't monotonic, then it tries rotating the curve and reducing the degree until a fit is achieved. |
| polysteps | The number of points to interpolate between every pair of points available when doing curve fitting. The default is 10. |
| program | The name of the current program (argv[0]) |
| prompt | The prompt, with the character `!' replaced by the current event number. |
| rawfile | The default name for rawfiles created. |
| diff_reltol | The relative tolerance used by the diff command. |
| remote_shell | Overrides the name used for generating rspice runs (default is "rsh"). |
| rhost | The machine to use for remote SPICE-3 runs, instead of the default one (see the description of the rspice command, below). |
| rprogram | The name of the remote program to use in the rspice command. |
| slowplot | Stop between each graph plotted and wait for the user to type return before continuing. |
| sourcepath | A list of the directories to search when a source command is given. The default is the current directory and the standard spice library (/usr/local/lib/spice, or whatever LIBPATH is #defined to in the Spice3 source. |
| spicepath | The program to use for the aspice command. The default is /cad/bin/spice. |
| term | The mfb name of the current terminal. |
units |
If this is degrees, then all the trig functions will use degrees instead of radians. |
| unixcom | If a command isn't defined, try to execute it as a UNIX command. Setting this option has the effect of giving a rehash command, below. This is useful for people who want to use nutmeg as a login shell. |
| verbose | Be verbose. This is midway between echo and debug / cpdebug. |
| diff_vntol | The absolute voltage tolerance used by the diff command. |
| width | The width of the page for asciiplot and print col. |
| x11lineararcs | Some X11 implementations have poor arc drawing. If you set this option, Spice3 will plot using an approximation to the curve using straight lines. |
| xbrushheight | The height of the brush to use if X is being run. |
| xbrushwidth | The width of the brush to use if X is being run. |
| xfont | The name of the X font to use when plotting data and entering labels. The plot may not look good if this is a variable-width font. |
Υπάρχουν κάποιες μεταβλητές set τις οποίες χρησιμοποιεί το Spice3 αλλά όχι το Nutmeg. Αυτές είναι :
| editor | The editor to use for the edit command. |
| modelcard | The name of the model card (normally .model). |
| noaskquit | Do not check to make sure that there are no circuits suspended and no plots unsaved. Normally Spice-3 warns the user when he tries to quit if this is the case. |
| nobjthack | Assume that BJTs have 4 nodes. |
| noparse | Don't attempt to parse input files when they are read in (useful for debugging). Of course, they cannot be run if they are not parsed. |
| nosubckt | Don't expand subcircuits |
| renumber | Renumber input lines when an input file has .include's. |
| subend | The card to end subcircuits (normally .ends). |
| subinvoke | The prefix to invoke subcircuits (normally x). |
| substart | The card to begin subcircuits (normally .subckt). |