eldo_user

Simulator Compatibility
Hybrid Compat Mode
My netlist
.compat
.subckt fooh 1
r1 1 0 '-1.0*sqrt(-4)' $ comment
i1 1 0 1m
.ends
.endcompat
.subckt foo 1
r1 1 0 'sqrt(4.0)' ! comm
i1 1 0 1m
.ends
x1 1 foo
x2 2 fooh
.op
.extract dc v(1)
.extract dc v(2)
.end
In this example, the subcircuit fooh is run in compatibility mode. The remainder of the circuit is
run in native Eldo mode.
Files that are included with .LIB or .INCLUDE between .COMPAT and .ENDCOMPAT are
handled in compat mode. In the following example, the content of the included files, file2 and
file3, are handled in compat mode:
.compat
.include file2
.lib file3 TT
.endcompat
You can use hybrid compat mode (.COMPAT/.ENDCOMPAT blocks) together with -
compmod or -compnet arguments (or equivalent options). Locally inside the block the
compatibility mode applies to both models and syntax, and outside the block it applies only to
models or syntax respectively.
Note
If hybrid compat mode (.COMPAT/.ENDCOMPAT blocks) is used together with the -
compat argument (or equivalent option) Eldo outputs a warning notifying that the
.COMPAT command has been specified even though compat mode is already enabled.
Limitations
• The commands .COMPAT and .ENDCOMPAT can not be specified inside .ALTER
sections.
• In compat mode, analyses are run in the sequence they are listed in the .cir file. However
this is not the case for analysis commands inside .COMPAT/.ENDCOMPAT blocks.
For example:
.tran 1n 10n
.tran 1n 20n
Eldo® User's Manual, 15.3 163